#web-development

zealous siren Apr 22, 2020, 3:43 PM

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I GAVE THE LINK

supple loom Apr 22, 2020, 3:43 PM

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okay

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installing that

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thanks

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64 only i need right?

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not both

light willow Apr 22, 2020, 3:59 PM

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@zealous siren I have a back-end architecture question for web. Is this the correct place to ask it?

zealous siren Apr 22, 2020, 4:07 PM

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sure be only 64

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if that doesn't work

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install 32

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j sure?

supple loom Apr 22, 2020, 4:14 PM

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both installed after uninstalling what i had ...got the same thing again and now getting the same error

light willow Apr 22, 2020, 4:36 PM

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j sure?
@zealous siren

Ok. I asked in the help channel but no one responded, so I'll paste it here

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Or if you want, it's in #help-pear

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Ok it was moved to dormant

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I'll just paste it here.

I'm working with time-series data and need to use Python libraries in the process (talib). The client-side is VueJS and makes requests to a GraphQL server (Hasura) which is connected to timescaleDB.

So VueJS <---> Hasura <--> timescaleDB.

I will be creating Python microservices to run analytics on the timeseries data in timescaleDB (which is SQL btw).

When the client makes simple requests for raw data (eg. to view a chart) the request goes from Vue to Hasura to timescaleDB.

However when the user makes a complex request, it needs to go to the Python service that performs analysis on the timeseries data and returns the response.

I want to know where the Python microservices fit. Do I have to connect them to Hasura so that the complex query is sent to Hasura by the user and then is sent off to the Python service which then connects to timescaleDB independently, or does the Python service also connect to Hasura via GraphQL?

zealous siren Apr 22, 2020, 4:53 PM

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So I’m not familiar with those apps so my questions will be general

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Most of time queries will go to Hasara for processing but occasionally they are too complex and need to be dealt with by python before Hasara?

light willow Apr 22, 2020, 5:05 PM

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Most of time queries will go to Hasara for processing but occasionally they are too complex and need to be dealt with by python before Hasara?

Yes

zealous siren Apr 22, 2020, 5:23 PM

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so you need a router service

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and likely processing service

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so Router determines straight to Hasara or not, and processing service that will run the code then pass it to Hasara service

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in theory, you should have query service because multiple microservices, same database is frowned upon but baby steps

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So VueJS -> Router --maybe--> Processing (which will they reach into DB) -> Hasara

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Router/Processing could be same as well

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Depends on how deep you want to go

cold anchor Apr 22, 2020, 5:44 PM

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in the past when I've had to do complex queries over time series data, I create a separate "summary" table and run the expensive queries offline so the user experience is snappy

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that's a very common practice

light willow Apr 22, 2020, 5:45 PM

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in the past when I've had to do complex queries over time series data, I create a separate "summary" table and run the expensive queries offline so the user experience is snappy

Yes, preprocessing and saving results for reuse?

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@zealous siren ok thanks. I was wondering how I could make Python sit between Hasura and Timescale

cold anchor Apr 22, 2020, 5:46 PM

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yes, since it's a time series data (which are almost always immutable data), it's safe to store the results of the expensive queries as the "truth" instead of running expensive queries at user-experience time

light willow Apr 22, 2020, 5:46 PM

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Essentially I'm hoping to have a single GraphQL endpoint for the user.

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yes, since it's a time series data (which are almost always immutable data), it's safe to store the results of the expensive queries as the "truth" instead of running expensive queries at user-experience time

Ok yes I thought so. I guess my next question is how do you determine when to draw the line on storing stuff?

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So, for example stuff I'd use a lot like an indicator, say normalized average true range, would be saved as another column along with the time-series data

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Or you're saying to separate the summary data from the raw stuff

cold anchor Apr 22, 2020, 5:49 PM

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from their website, it doesn't look like you can sit custom code between them and the database, but they have a discord community you can ask https://hasura.io/learn/#hasura-discord

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yes, separate the summary data from the raw data

zealous siren Apr 22, 2020, 5:50 PM

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sure, caching is great but Rome wasn't built in a day

light willow Apr 22, 2020, 5:51 PM

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Ok thanks guys this was very helpful. Will come back when I have Python specific questions. Sorry if this was a bit off-topic

cold anchor Apr 22, 2020, 5:52 PM

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when deciding to separate, I usually ask "does this data power a page in my app for the user/customer?" and "does the query consistently take longer and a couple seconds and tax the database or data API service?" - if both are yes, I make an event summary for the query

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this isn't cacheing, it's running long queries offline and saving the results

zealous siren Apr 22, 2020, 5:55 PM

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Sure but if queries are not commonly repeated, caching results may not make sense

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and sometimes it's cheaper to throw some more hardware then overhead of storing and retrieving cache results 😄

cold anchor Apr 22, 2020, 5:55 PM

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if the answer to "does this data power a page in my app for the user/customer?" is yes, the queries are commonly repeated

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again, not a cache lol, a separate table of data

wild thunder Apr 22, 2020, 6:03 PM

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i'm here

cold anchor Apr 22, 2020, 6:04 PM

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(continuing from #help-grapes ) ok let's talk about context locals

wild thunder Apr 22, 2020, 6:04 PM

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alright

cold anchor Apr 22, 2020, 6:04 PM

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when flask runs, there are different levels of a "global" variable that persist

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there's the normal stuff, things like variables inside functions, the python language handles that

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but when we start our flask app, we also assign a config to that app, which are things like the database URL, the debug flag, etc. that live on the context of the "app"

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these variables persist inside the context of the app, and are available when flask runs your code

light willow Apr 22, 2020, 6:06 PM

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It's not letting me use emoji reactions wtf. Lol

cold anchor Apr 22, 2020, 6:06 PM

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from flask import current_app

wild thunder Apr 22, 2020, 6:06 PM

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but when we start our flask app, we also assign a config to that app, which are things like the database URL, the debug flag, etc. that live on the context of the "app"
@cold anchor it's related to python app.config['SQLALCHEMY_DATABASE_URI'] ?

cold anchor Apr 22, 2020, 6:06 PM

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exactly that

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these variables are shared across all server processes, threads and requests being handled

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as such it's imperative that you don't modify them after the app starts

light willow Apr 22, 2020, 6:06 PM

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Sure but if queries are not commonly repeated, caching results may not make sense

He's saying to make a separate data table for summary data in addition to the raw data.

wild thunder Apr 22, 2020, 6:07 PM

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it have to be static as long as the app runs?

cold anchor Apr 22, 2020, 6:07 PM

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I don't think there's anything stopping you from changing them while the app runs, but it's a bad idea, because it's shared across multiple threads

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(it can't be shared across multiple processes, because they can't share variables in the same way)

light willow Apr 22, 2020, 6:08 PM

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when deciding to separate, I usually ask "does this data power a page in my app for the user/customer?" and "does the query consistently take longer and a couple seconds and tax the database or data API service?" - if both are yes, I make an event summary for the query

This is very helpful. Thank you!

wild thunder Apr 22, 2020, 6:08 PM

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hmm

cold anchor Apr 22, 2020, 6:09 PM

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the next step down from the app context locals (link: https://flask.palletsprojects.com/en/1.1.x/appcontext/) is a request context local (https://flask.palletsprojects.com/en/1.1.x/reqcontext/)

wild thunder Apr 22, 2020, 6:09 PM

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but like, my concern is: how does the program manage multiple connections

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📎 unknown.png

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like this

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made on paint with absolute painting skills

cold anchor Apr 22, 2020, 6:09 PM

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beautiful

wild thunder Apr 22, 2020, 6:09 PM

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hahaha 😛

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it's with threading?

cold anchor Apr 22, 2020, 6:10 PM

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so when a request comes in, the thread handling it creates a new request and session context to handle the connecting user

wild thunder Apr 22, 2020, 6:10 PM

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do i have to make it, or flask.app does it automatically

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?

cold anchor Apr 22, 2020, 6:10 PM

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flask does it for you

wild thunder Apr 22, 2020, 6:10 PM

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oh

cold anchor Apr 22, 2020, 6:10 PM

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that's also a big discussion, we can cover that later

wild thunder Apr 22, 2020, 6:10 PM

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so it's half way to make an online game

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it already plugs people on "different ports"

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idk if it's the port or just the ip that changes, the ip makes more sense

cold anchor Apr 22, 2020, 6:11 PM

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sort of, again that's a little out of scope of this for now

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that's closer to the operating system than we need to care about

wild thunder Apr 22, 2020, 6:12 PM

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but that already explained a lot

i mean, in my head, when a user was logged in, and another one logs in it could cause trouble if i did not handle that on code

cold anchor Apr 22, 2020, 6:12 PM

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anyway back to this idea of a "request context": when flask gets a new request, it creates a new context for you to handle global variables for that request flask.g

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that's where flask.g and flask.session come to the rescue

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they're entirely created and destroyed within the lifetime of a single request

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so if user A and user B send a request at the same time, they still won't overlap because they're two different requests

wild thunder Apr 22, 2020, 6:13 PM

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ohh

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got it

cold anchor Apr 22, 2020, 6:14 PM

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does that answer your question?

wild thunder Apr 22, 2020, 6:14 PM

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yes

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i was thinking this happens

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📎 unknown.png

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but it's separated

cold anchor Apr 22, 2020, 6:15 PM

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yes, it's separated

wild thunder Apr 22, 2020, 6:15 PM

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📎 unknown.png

cold anchor Apr 22, 2020, 6:15 PM

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request contexts never overlap

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yes, like that

wild thunder Apr 22, 2020, 6:15 PM

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alright, that solves the question

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@cold anchor thank you man, saved the day

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i was going nuts

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idk the words to search for it online

cold anchor Apr 22, 2020, 6:16 PM

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those links I posted about the request and app contexts are good reads

wild thunder Apr 22, 2020, 6:16 PM

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i'll read them now

calm heath Apr 22, 2020, 8:24 PM

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hi everyone.. I'm not sure what the appropriate channel would be to ask a question about tweepy... any suggestions?

signal yoke Apr 22, 2020, 9:48 PM

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I want to host a server on my machine. All I need to do is to forward one port and write

server_socket.bind(('0.0.0.0', forwarded_port))```
?
or should the IP be the external router ip

queen bough Apr 22, 2020, 10:39 PM

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@signal yoke If you only want to access it locally (i.e. from other devices connected to the same network) then 0.0.0.0 is fine, otherwise it has to be your external IP.

oblique hemlock Apr 22, 2020, 11:09 PM

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Someone suggests me a book for django

fiery tapir Apr 23, 2020, 1:52 AM

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With selenium do I need to actually link to where I have the Firefox driver? It seems to be working without actually linking it like so
firefox_browser = webdriver.Firefox()
but every tutorial i've read and watched so far they link to the drivers executable.

quasi ridge Apr 23, 2020, 1:55 AM

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hey if it's working, wassa problem

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my hunch is that it looks for it in "standard" places if you don't tell it exactly where to look, and yours is indeed in a standard place

fiery tapir Apr 23, 2020, 1:57 AM

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yeah, whenever i tried to do it as
firefox_browser = webdriver.Firefox('./geckodriver.exe')

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it wouldn't work at all

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said it couldn't find the file

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when it was in the same folder

quasi ridge Apr 23, 2020, 2:02 AM

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well ... this is like one of the biggest annoyances ... . doesn't mean what you think it means

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it means "the current working directory of the python process", but not neccesarily "the directory this file is in"

quasi hawk Apr 23, 2020, 2:07 AM

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anyone have experience with web crawlers?

pseudo tapir Apr 23, 2020, 2:14 AM

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What's the best way to go about changing the django admin page? I'd like to extend my base.html including the header and everything

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https://kanin.naila.bot/2020/04/23/I4Qmnt this is what I've currently got, by recreating the admin/base.html, removing the header, and extending my base.html, though I'm sure this isn't the way to go about it

solar hatch Apr 23, 2020, 5:49 AM

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Who use Vue or react with Django/flask

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Is use js framework with Django/flask good choice

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??

pseudo tapir Apr 23, 2020, 6:06 AM

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I use Vue with Django

solar hatch Apr 23, 2020, 6:07 AM

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Oh

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I am learning Vue

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And i am kinda lost

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@pseudo tapir what does vue do when your using Django

pseudo tapir Apr 23, 2020, 6:09 AM

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vue is frontend

solar hatch Apr 23, 2020, 6:11 AM

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Ok

native tide Apr 23, 2020, 8:47 AM

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What is it like to use a JavaScript framework with Python backend? Like, do you still render templates at all?

lucid marsh Apr 23, 2020, 8:50 AM

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I'm having a problem with Django redirecting constantly

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just throwing 302's at me

native tide Apr 23, 2020, 9:01 AM

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Like an infinite loop of 302?

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Look for somewhere in youre control flow where you're calling a redirect where the condition always true.

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@mixin grid-row-span($start, $end) {
    grid-row-start: $start;
    grid-row-end: $end;
}

@mixin grid-col-span($start, $end) {
    grid-column-start: $start;
    grid-column-end: $end;
}

it sassy

native tide Apr 23, 2020, 10:00 AM

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haha I just realized I didnt need to write that mixin, they already have a property that combines those two.

signal yoke Apr 23, 2020, 10:50 AM

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@queen bough are you sure? doesn't 0.0.0.0 means "all traffic"?

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I assume on the client site it has to be the external ip

blazing jetty Apr 23, 2020, 11:23 AM

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    flash(error_handler[error])
    sleep(3)
    return redirect('redir')```

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It's not showing the msg box :/

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I would like to redirect user to another site and let him know that

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flask

native tide Apr 23, 2020, 11:26 AM

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I think that 0.0.0.0 means broadcasting on the local network. So whatever network its on, it means its serving to every localhost on the network? I think thats how it works anyway.

ancient hill Apr 23, 2020, 11:46 AM

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hi I'm new hear i now somethings about Django and rest but i need big picture of what i need to learn to launch full flagged site with it like online store with it

supple loom Apr 23, 2020, 12:07 PM

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someone help me out with this.....i have installed vs redist 14.25 and build tools from visual studio installer...it still gives the same error

📎 Screenshot_1.png

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these are the package installed in my system

📎 Screenshot_5.png

native tide Apr 23, 2020, 12:59 PM

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Anyone using vue flask ?

cloud path Apr 23, 2020, 1:14 PM

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guys how can i write on this button?

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📎 unknown.png

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it appears empty

native tide Apr 23, 2020, 1:22 PM

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Flask or django ?

cloud path Apr 23, 2020, 1:22 PM

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i'm using flask but into the form i already writed onto

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like that submit = SubmitField('Accedi')

native tide Apr 23, 2020, 1:22 PM

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if thats flask wtf submit =

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Oh ok

cloud path Apr 23, 2020, 1:22 PM

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but if i put the style through the "class" keyword

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the word disappears

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it shows the word just without any style

native tide Apr 23, 2020, 1:23 PM

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it should not amtter u are just adding the class do you have anything related to the text in css to that style ?

cloud path Apr 23, 2020, 1:23 PM

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mm i have to check because the template is pre-made free usage

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but if i remove the class

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📎 unknown.png

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the word appears good onto the button

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i'm uploading a screenshot of the button but it's a bit slow

native tide Apr 23, 2020, 1:37 PM

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You dont have to remove class

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is there anything

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inside that class

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that is related

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to text

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it can cause trouble

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keep the background

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color etc

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but remove everything that is related to text inside that class

blazing jetty Apr 23, 2020, 2:22 PM

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📎 unknown.png

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why

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it uses local address

cold anchor Apr 23, 2020, 2:23 PM

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well it can't attach to another computer's IP address

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it has to attach to its own

blazing jetty Apr 23, 2020, 2:24 PM

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so it should be like that?

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It says bad gateway when I go to the site

cold anchor Apr 23, 2020, 2:36 PM

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what is saying bad gateway? gunicorn? your app server (flask? django?) your reverse proxy (nginx? apache?) or something else?

blazing jetty Apr 23, 2020, 2:48 PM

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nginx

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what ever

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I've tried 3 tutorials already and haven't got anything working

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ima go back to the first one..

cold anchor Apr 23, 2020, 3:02 PM

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what's your nginx config look like?

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and is your application server binding to 0.0.0.0? (I've found not binding to that specifically can cause problems)

queen bough Apr 23, 2020, 3:10 PM

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@queen bough are you sure? doesn't 0.0.0.0 means "all traffic"?
@signal yoke 0.0.0.0 binds to all "IPs" of the PC - so localhost, and its IP:
https://superuser.com/questions/949428/whats-the-difference-between-127-0-0-1-and-0-0-0-0
https://en.wikipedia.org/wiki/0.0.0.0
https://www.howtogeek.com/225487/what-is-the-difference-between-127.0.0.1-and-0.0.0.0/
HTH.

cold anchor Apr 23, 2020, 3:15 PM

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hm, so then you'd only want to bind to 0.0.0.0 when you want your app available at any IPv4 address pointing to that server, and you'd want to bind to 127.0.0.1 when you want the app available only to another process on the local machine (like nginx)

blazing jetty Apr 23, 2020, 3:27 PM

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📎 unknown.png

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WHY

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WHY

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fuckin

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I hate configuration files, why can't they be simple and they have to be in 10 different placesAAAAA

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I tried to freakin reinstall apache2 and still doesn't work

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it worked the first time

cold anchor Apr 23, 2020, 3:28 PM

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already in use

blazing jetty Apr 23, 2020, 3:29 PM

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I can read but what is in use

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I did service apache2 stop

cold anchor Apr 23, 2020, 3:29 PM

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lsof -i:80

blazing jetty Apr 23, 2020, 3:30 PM

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nginx

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ffs

cold anchor Apr 23, 2020, 3:31 PM

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what's the nginx config got for forwarding rules?

blazing jetty Apr 23, 2020, 3:32 PM

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it had my server's ip

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It still doesn't work, I did systemctl stop nginx

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can i restart this server so it doesn't run these

cold anchor Apr 23, 2020, 3:34 PM

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I'm not super familiar with these commands, but as long as it doesn't have a "spin this process back up when the server restarts" mechanism that should work

blazing jetty Apr 23, 2020, 3:41 PM

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gg

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still doesn't work

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..

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now it's missing some conf file

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noice

inner latch Apr 23, 2020, 3:42 PM

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Any good courses/resources out there on Web Development with a particular focus on Python?

native tide Apr 23, 2020, 3:48 PM

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input:checked + .content #grid {
    display: grid;
}

You really dont need JS anymore...

haughty saffron Apr 23, 2020, 3:49 PM

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I've got this script that's meant to recolour all of the elements with the ID, but i can't even get it it to fire

document.onload = function () {
  console.log("document loaded!")
  var coll = document.getElementsByTagName('div');
  var arr = [];
  for(var i = 0; i < coll.length; i++) arr.push(coll[i]);
  arr.forEach((elem) => {
    let rgb_elem = document.getElementById(`rgb ${elem.id}`)
    let rgb = hexToRgb(elem.style.backgroundColor)
    rgb_elem.textContent = `RGB: (<span style='color: rgb(${rgb.r}, 0, 0)'>${rgb.r}</span>,<span style='color: rgb(0, ${rgb.b}, 0)'>${rgb.b}</span>,<span style='color: rgb(0, 0, ${rgb.g})'>${rgb.g}</span>,`
  })
}

I am importing it from a .js file via <link>. Do i need it to be a local script?

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apologies if its bad js i don't use it that much

brisk ravine Apr 23, 2020, 3:50 PM

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anyone know how to get the public ip of the user in Django???

native tide Apr 23, 2020, 3:52 PM

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I'm not the best at JS either but

document.getElementById(`rgb ${elem.id}`)

Is that valid? Aren't you allowed to have spaces in ids? I find that rgb-whatever would be more common. That might not be the problem....

haughty saffron Apr 23, 2020, 3:52 PM

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document.addEventListener('DOMContentLoaded', function () {
  console.log("document loaded!")
  var coll = document.getElementsByTagName('div');
  var arr = [];
  for (var i = 0; i < coll.length; i++) arr.push(coll[i]);
  arr.forEach((elem) => {
    let rgb_elem = document.getElementById(`rgb ${elem.id}`)
    let rgb = hexToRgb(elem.style.backgroundColor)
    rgb_elem.textContent = `RGB: (<span style='color: rgb(${rgb.r}, 0, 0)'>${rgb.r}</span>,<span style='color: rgb(0, ${rgb.b}, 0)'>${rgb.b}</span>,<span style='color: rgb(0, 0, ${rgb.g})'>${rgb.g}</span>,`
  })
})

even with this, its still not firing

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TLS thats not the issue, but the event isn't firing

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the rest is fine

native tide Apr 23, 2020, 3:54 PM

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I'm assuming you have it deferred at the end of the html? If so, not sure. Im pretty new to JS.

haughty saffron Apr 23, 2020, 3:56 PM

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Ill try

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nothing

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it doesn't seem to be loading the script at all wtf

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even when i slap the contents in a <script> tag still nothing

native tide Apr 23, 2020, 4:02 PM

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You could try putting it directly into script tags to see if it works. Maybe its pathing isssue

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Ah well damn

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The other day I forgot to have a closing </script> on my <script> and it caused it to not load but its not that then.

haughty saffron Apr 23, 2020, 4:04 PM

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hang on

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>DragDev Studios - Branding</title>
  <meta content="" name="description">
  <meta content="width=device-width, initial-scale=1" name="viewport">

  <link href="site.webmanifest" rel="manifest">
  <link href="icon.png" rel="apple-touch-icon">
  <link href="js/main.js" rel="script">
  <!-- Place favicon.ico in the root directory -->

  <link href="css/normalize.css" rel="stylesheet">
  <link href="css/main.css" rel="stylesheet">

  <meta content="#fafafa" name="theme-color">
  <style>
    html, body {
      margin: 0;
      padding: 0;
    }
    div {
      min-width: 100%;
      margin: 0;
      padding:15px;
      min-height: 4em;
    }
  </style>
</head>
<body>
  <h1>Colours:</h1>
  <div style="background-color: #a34142" id="MemberRed">
    <h2>"Member Red"</h2>
    <ul>
      <li>Hex: <code>#a34142</code></li>
      <li id="rgb MemberRed">RGB: <i>Not calculated</i></li>
    </ul>
  </div>
  <script defer>...</script>
</body>
</html>

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in <script>

    function hexToRgb(hex) {
      let result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
      return result ? {
        r: parseInt(result[1], 16),
        g: parseInt(result[2], 16),
        b: parseInt(result[3], 16)
      } : null;
    }

    document.addEventListener('DOMContentLoaded', function () {
      console.log("document loaded!")
      var coll = document.getElementsByTagName('div');
      var arr = [];
      for(var i = 0; i < coll.length; i++) arr.push(coll[i]);
      arr.forEach((elem) => {
        let rgb_elem = document.getElementById(`rgb ${elem.id}`)
        let rgb = hexToRgb(elem.style.backgroundColor)
        console.log(rgb)
        if (rgb === null) {
          alert(`unable to calculate RGB of hex ${rgb}`)
        }
        rgb_elem.textContent = `RGB: (<span style='color: rgb(${rgb.r}, 0, 0)'>${rgb.r}</span>,<span style='color: rgb(0, ${rgb.b}, 0)'>${rgb.b}</span>,<span style='color: rgb(0, 0, ${rgb.g})'>${rgb.g}</span>,`
      })
    })

    console.log("hi")

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thats all ive got right now

versed sigil Apr 23, 2020, 4:06 PM

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looks like port 80 is already in use

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cant you just change to higher port

native tide Apr 23, 2020, 4:07 PM

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8080 or 81 is common.

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alternate http ports that is

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what is in that main.js?

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i dont see why that would matter tho

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I would try umm removing document.addEventListener('DOMContentLoaded', function () { and then just having it at the very end so that it naturally loads the script after the content is loaded.

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I think you can take that defer out, I think the defer keyword is for when you have the JS at the top of the file and still want it deferred. Other than that, I have no idea.

fading mason Apr 23, 2020, 4:18 PM

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so I need to make a search engine functionality on my django website which will filter the topics by the searched keyword

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not sure how to go about it

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actually nvm

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I'll figure it out

blazing jetty Apr 23, 2020, 5:08 PM

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📎 unknown.png

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📎 unknown.png

#

I'm getting internal server error

zealous siren Apr 23, 2020, 5:11 PM

#

ok, check the error logs

blazing jetty Apr 23, 2020, 5:56 PM

#

got it working thx for help

unkempt terrace Apr 23, 2020, 6:03 PM

#

Hello guys,

#

I need to do data scrapping on this page : https://www.iqair.com/france/normandy/le-havre/le-havre-ville-haute

Le Havre ville-haute Air Quality Index (AQI) and Le Havre Air Pollu...

Le Havre ville-haute Air Quality Index (AQI) is now Moderate. Get real-time, historical and forecast PM2.5 and weather data. Read the air pollution in Le Havre ville-haute, Le Havre with AirVisual.

#

and I need the AQI value

toxic marten Apr 23, 2020, 6:03 PM

#

I coded with selenium, a program that register an account. But often i have problem, because sometimes there is recapcha

#

How can i prevent recapcha or other relative problems

zealous siren Apr 23, 2020, 6:13 PM

#

you cant

#

that's whole point of recapcha to prevent what you are doing

cold anchor Apr 23, 2020, 6:23 PM

#

bluemore it looks like you can just run the same request that the javascript is running to get the data at https://staging-website-api.airvisual.net/v1/stations/4t5XoboksgD4eB4Dq/measurements?units.temperature=fahrenheit&units.distance=mile&AQI=US&language=en

balmy hamlet Apr 23, 2020, 7:57 PM

#

I was wondering what orm tool do the majority of users here use

cold anchor Apr 23, 2020, 7:58 PM

#

SQLAlchemy is my favorite

versed sigil Apr 23, 2020, 7:59 PM

#

sqlalchemy

#

boom!

balmy hamlet Apr 23, 2020, 7:59 PM

#

Is it easier to work with?

cold anchor Apr 23, 2020, 8:00 PM

#

easier than writing you own db driver, yes

balmy hamlet Apr 23, 2020, 8:00 PM

#

lmao well that too

#

I was wondering which might be easier to implement since I am trying to write a webserver using fastapi

#

I know they had some docs around it

cold anchor Apr 23, 2020, 8:03 PM

#

try googling for "fastapi sqlalchemy" and see if any libraries come up or "fastapi sqlalchemy cookiecutter" to see if there are any working templates you can use

balmy hamlet Apr 23, 2020, 8:08 PM

#

I am actually looking at the cookiecutter now

toxic marten Apr 23, 2020, 8:43 PM

#

that's whole point of recapcha to prevent what you are doing
@zealous siren Yes i know that, but im searching for some way that prevent recapcha

#

i tried to modify payload of post request, i modified useragent, ip (using proxy), chrome window size, but it doesnt work

unkempt terrace Apr 23, 2020, 8:56 PM

#

thanks @cold anchor

zealous siren Apr 23, 2020, 11:01 PM

#

@toxic marten you see the flaw in that thinking? Hey, we implemented the thing to stop you so how do I bypass my TOS violating behavior

#

So to end this conversation

#

!rule5

pseudo tapir Apr 23, 2020, 11:07 PM

#

Can anyone assist me in using https://stoplight.io/ with Django? I honestly have no idea where to start but their API docs are beautiful

stoplight.io

API Design Management for Teams and Enterprises | Stoplight

Using Stoplight you can create OpenAPI descriptions, documentation, mock servers much faster than other API tools, with no specialized knowledge required in one centralized platform.

#

I've never done anything like this, and I've read their docs and don't think i understand exactly what I'm to do lol

zealous siren Apr 23, 2020, 11:08 PM

#

Is that for building or testing?

pseudo tapir Apr 23, 2020, 11:08 PM

#

I believe they have both https://ipgrabber.pls-dont.click/2020/04/23/ePuWHX

#

I mainly want their docs, but I haven't looked into the design thing much

zealous siren Apr 23, 2020, 11:10 PM

#

That looks like it’s API prototyped

#

So it’s for design and building

#

Like early design

pseudo tapir Apr 23, 2020, 11:10 PM

#

I know they use it over here https://docs.thecatapi.com/ and it's beautiful

zealous siren Apr 23, 2020, 11:11 PM

#

This looks like it’s not for building the APIs

#

Like writing the actual code for APIs

pseudo tapir Apr 23, 2020, 11:12 PM

#

I see, so does this question not belong here? I'm just not sure how to get those docs myself

zealous siren Apr 23, 2020, 11:12 PM

#

So build API in whatever language you want

#

Do you want to build APIs?

pseudo tapir Apr 23, 2020, 11:12 PM

#

Yes

zealous siren Apr 23, 2020, 11:12 PM

#

Python?

pseudo tapir Apr 23, 2020, 11:12 PM

#

Yep, Django

zealous siren Apr 23, 2020, 11:12 PM

#

No

#

https://fastapi.tiangolo.com

FastAPI

FastAPI framework, high performance, easy to learn, fast to code, ready for production

#

Yes

pseudo tapir Apr 23, 2020, 11:13 PM

#

What?

zealous siren Apr 23, 2020, 11:13 PM

#

Is this brand new site?

pseudo tapir Apr 23, 2020, 11:14 PM

#

Not really

zealous siren Apr 23, 2020, 11:14 PM

#

Don’t build API Django unless it’s something tiny or you already have

#

FastAPI for building APIs

pseudo tapir Apr 23, 2020, 11:16 PM

#

I'd like the site to all be in Django, one project, thanks for the suggestion though 😄

zealous siren Apr 23, 2020, 11:17 PM

#

My SRE side wants to hurt you

#

But carry on

native tide Apr 24, 2020, 1:04 AM

#

I want to create a project called POLLSTER that will have one app called POLLS. I am following these steps but I am getting confused.

Create a new folder called POLLSTER – this will be the name of the project.
Inside of POLLSTER folder, run python -m venv env, which will create a virtual environment folder called ENV within the POLLSTER folder.
Inside of \POLLSTER\ENV\ folder run activate to activate the virtual environment.
Inside of POLLSTER folder run python -m pip install Django (if the environment is activated, does it matter where this command is run?).

I’ve followed the above instructions from the official Django website and I have my project folder (POLLSTER) created but now the instructions are telling me to run django-admin startproject <projectname>. My issue is that this will create a project (POLLSTER) folder, which I have already done.

Correct me if I am wrong but the idea is to install Django inside of a virtual environment, and to have the virtual environment folder to be within my project folder. So if I’ve already created the project folder, why is the django-admin startproject <projectname> making another project folder?

cerulean vapor Apr 24, 2020, 1:07 AM

#

OK, so here's what's going on

#

There's your outermost folder, which contains your main project directory and your venv directory

native tide Apr 24, 2020, 1:08 AM

#

ok so what should i call that?

#

i guess not pollster?

cerulean vapor Apr 24, 2020, 1:08 AM

#

The project directory will have in it one or more Django sites created by Django itself

#

Your outermost folder could be called pollster-project

native tide Apr 24, 2020, 1:09 AM

#

ok got it

cerulean vapor Apr 24, 2020, 1:09 AM

#

The folder for django-admin startproject could just be pollster

#

and the app within Django could just be called polls

#

the virtual environment you can just call env

native tide Apr 24, 2020, 1:10 AM

#

ok makes sense

#

i am gonna try now. i will send a bat signal if any problems arise

cerulean vapor Apr 24, 2020, 1:12 AM

#

OK

native tide Apr 24, 2020, 1:25 AM

#

📎 unknown.png

#

ok does this look good @cerulean vapor ?

cerulean vapor Apr 24, 2020, 1:26 AM

#

That's about what I expected

native tide Apr 24, 2020, 1:26 AM

#

PHEW

cerulean vapor Apr 24, 2020, 1:26 AM

#

So now when you open pollster-project in VS Code, for instance, it'll autodetect env as the environment for it

native tide Apr 24, 2020, 1:27 AM

#

it's just confusing that it makes a folder called POLLSTER within the POLLSTER folder lol

cerulean vapor Apr 24, 2020, 1:27 AM

#

This is one of the reasons I don't really recommend Django to people as their first web framework; it can get really unwiedly if they don't know that it's like this

#

It's designed like this because it assumes you may want to have more than one app sharing the same site configuration

native tide Apr 24, 2020, 1:27 AM

#

yea i hear that. although i have lots of coding experience so i really just have to get over these first few bumps. the code itself won't be an issue

cerulean vapor Apr 24, 2020, 1:28 AM

#

and honestly the toolset it provides you with is really powerful

native tide Apr 24, 2020, 1:28 AM

#

yeah i hear it's 'batteries included' compared to flask

#

they give you everything you need for a serious enterprise application

#

📎 unknown.png

#

here it is in vscode, if anyone cares 😛

native tide Apr 24, 2020, 2:40 AM

#

if the name of my app is polls , then visiting the 'polls/' url would mean that the pattern being sent to urls.py is simply ''
.... right?

#

(an empty string)

onyx crane Apr 24, 2020, 3:11 AM

#

can anyone point me a good ressource for the whole slug topic in django? I just can't get my head around it and the examples or often so specific that i can't transfer it to my personal project ....

dm or @me pls. Im heading to sleep

quasi ridge Apr 24, 2020, 3:16 AM

#

huh, never heard of "slugs"

leaden lantern Apr 24, 2020, 3:40 AM

#

How can i use aiohttp for Image Scraping

uncut glacier Apr 24, 2020, 7:37 AM

#

Anyone with google app engine experience able to help me with a problem? I'm trying to restrict access to certain URLs so they can only come from within my application (cloud tasks to be precise). With python 2's app.yaml I could do this with login: admin on those URLs but I cant find an equivalent with python 3. Any advice?

brazen iron Apr 24, 2020, 7:45 AM

#

hi guys how can i try to make telegram bot and import telegram but dont know how to get image from user?

#

any one can help me ?

harsh flare Apr 24, 2020, 7:50 AM

#

Can anyone help why I can't use a list iteration in this js script in my html using flask?

#

<script>
            $(function() {
            var cfg = {
                pieceTheme: 'https://koblenski.github.io/javascript/chessboardjs-0.3.0/img/chesspieces/wikipedia/{piece}.png',
                position: 'start'
            };
            var board = ChessBoard('myBoard', cfg);
            var game = new Chess();
            
            // 1. Load a PGN into the game
            var pgn = {{details[0]|tojson}};
            game.load_pgn(pgn);
            $('#pgn5').html(pgn);
            // 2. Get the full move history
            var history = game.history();
            game.reset();
            var i = 0;
            // 3. If Next button clicked, move forward one
            $('#nextBtn5').on('click', function() {
                game.move(history[i]);
                board.position(game.fen());
                i += 1;
                if (i > history.length) {
                    i = history.length;
                }
                });  
            });  
  </script>
```

#

var pgn = {{details[0]|tojson}}; is where it seems to break...

onyx crane Apr 24, 2020, 9:07 AM

#

Django
I know that there is the prepopulated_field in the django admin panel.
This seems like a great way of populating slugs.

How can i generate a slug when the object is created from a form ?
Can i somehow do stuff like : Form Input 1 = slugField ?

scenic cave Apr 24, 2020, 9:28 AM

#

Does somebody know how to get data from HTML forms using Python?

#

Pin @ me if you know how pls

onyx crane Apr 24, 2020, 9:38 AM

#

wdym by "get data" ?

#

let user create model objects through a form ?

scenic cave Apr 24, 2020, 11:13 AM

#

I mean

#

Like a box with text

#

And when you press submit the text goes to the server

onyx crane Apr 24, 2020, 11:28 AM

#

3 ways:

Use the forms that Django already provides. (i dont know all of them, but there is a user form for example that asks you for a username and a password)
Edit the forms that Django already provides. (add an E-Mail field)
Write your own forms.
https://docs.djangoproject.com/en/3.0/topics/forms/

Working with forms | Django documentation | Django

jagged hemlock Apr 24, 2020, 11:34 AM

#

Has anybody ever parsed RSS 2.0 XML, because I am a bit stuck on content:encode...

solar hatch Apr 24, 2020, 11:41 AM

#

flask vs django

onyx crane Apr 24, 2020, 11:41 AM

#

bit more context ?

solar hatch Apr 24, 2020, 11:42 AM

#

what would learn

#

you

#

i want to make a chat app

#

@onyx crane

onyx crane Apr 24, 2020, 11:47 AM

#

depends on what you want to achieve / build

Another user here stated that with flask you learn a lot more of the whole web things because you do most of the stuff by yourself.
Django provides so much functionality that you just go with so much without apreciating / learning the things in the background.

If youre getting really frisky with your stuff flask gives you more freedom, even though i can't define the limits of django when it comes to flexibility.

For some really simple projects and display applications django might be an overkill

#

I could imagine a chat app not being the easiest starter project ... with that message handling and stuff.
Maybe theres a good tutorial online though? Then just stick to that :D

tender seal Apr 24, 2020, 3:56 PM

#

hi guys I'm trying to connect my raspberry pi gpio with google assistant through ifttt, I have a trouble in establishing a connection between my Raspberry pi and ifttt, I'm running a flask server in raspberry pi

#

can anyone help me

feral minnow Apr 24, 2020, 7:14 PM

#

What's up guys so i wanna ask you... I see when people work on some website projects or anything else they have a specifc file for things so data bases in this file view in the view file so im working on a website project rn and I wanna know how they do that and how they link the files together ?

cold anchor Apr 24, 2020, 7:23 PM

#

what do you mean? can you clarify that a bit more?

feral minnow Apr 24, 2020, 7:24 PM

#

Yup give me a sec

#

so what I mean is they don't put everything in one file

cold anchor Apr 24, 2020, 7:26 PM

#

for which framework? a framework like django has module separation built in

#

but you need to do it yourself for something like flask for fastapi

feral minnow Apr 24, 2020, 7:26 PM

#

📎 Screenshot_from_2020-04-24_22-26-00.png

#

oh

#

the repo I just shared use django

#

but what about flask because im working with flask rn?

cold anchor Apr 24, 2020, 7:28 PM

#

yeah you have to do it yourself, here's a project I did a while back that I open sourced when I stopped trying to get customers for it https://github.com/Rdbaker/weasl-api

GitHub

Rdbaker/weasl-api

The API for weasl.in. Contribute to Rdbaker/weasl-api development by creating an account on GitHub.

feral minnow Apr 24, 2020, 7:29 PM

#

cool

#

but I didn't understand how i can do it myself?

#

because if I made different flask files everyone will be a single website

cold anchor Apr 24, 2020, 7:30 PM

#

make a new file and put some functions or classes in there, then import it at from myapp.utils import get_user_agent_header for example from maybe a view file

feral minnow Apr 24, 2020, 7:31 PM

#

ohhhh

#

So i make sepreate files then I import them in one file if that what you mean

cold anchor Apr 24, 2020, 7:31 PM

#

yeah, into the relevant file

feral minnow Apr 24, 2020, 7:32 PM

#

oh actually I don't know how they do it

cold anchor Apr 24, 2020, 7:32 PM

#

what specifically is confusing you?

feral minnow Apr 24, 2020, 7:34 PM

#

I don't know how to link them together or from myapp.utils import get_user_agent_header idk how to use this if you can explain it or give a link for someone else expalin it,I will appreiate that

cold anchor Apr 24, 2020, 7:35 PM

#

this might help https://realpython.com/flask-blueprint/

Use a Flask Blueprint to Architect Your Applications – Real Python

In this tutorial, you'll learn how to use a Flask Blueprint to help you structure your application by grouping its functionality into reusable components. You'll learn what Blueprints are, how they work, and how you can use them to organize your code.

feral minnow Apr 24, 2020, 7:36 PM

#

oh I will check it out actually this thing was confusing me for a along time thanks

dull solar Apr 24, 2020, 9:48 PM

#

I'm trying to integrate some python scripts into my web app, but I think I'm misunderstanding certain fundamentals.

I'm getting the following error:

ERROR 2020-04-24 15:12:24,358 signal 8 140184647079744 Signal handler <bound method DjangoFixup.on_import_modules of <celery.fixups.django.DjangoFixup object at 0x7f7f47457fd0>> raised: DatabaseError("Execution failed on sql 'SELECT * FROM Profiles': no such table: Profiles")

It's referring to this line of code:

    if profiles is None:
        profiles = pd.read_sql_query("SELECT * FROM Profiles", conn_mp)

The table and database doesn't exist yet, but why am I getting the error if I'm not trying to run the script yet?

All I did was save and build it, and it's throwing the error.

native tide Apr 24, 2020, 10:01 PM

#

I have allowed my templates to grow so complex and numerous with poorly named files that don't match that I want to cry (not reall) thinking about what a mess it is.

#

The problem is that when I made the templates, I was using them in one place.

#

But over time the need for the same content to be plugged all over resulted in them being everywhere with the original names that in the end dont reflect entirely what is on the template. So many templates with similar names.

#

Its bad.

#

I will never make this mistake again though

stark mauve Apr 24, 2020, 10:24 PM

#

Hi all

#

What are the most common options for mySQL databases to deploy a flask application with?

#

Is an sqlite database good enough for a production application?

#

Thank you.

native tide Apr 24, 2020, 10:30 PM

#

An sqlite database isnt really a database at all. It's more... the sort of thing you use in a development environment for simplicity. No one can actually connect to it, which people need to do to use a database.

#

I use a postgres database and am not that familiar withg mySQL but its fairly common.

stark mauve Apr 24, 2020, 10:31 PM

#

by mySQL I meant any database that isn't noSQL, sorry

#

so I guess postgres could count

native tide Apr 24, 2020, 10:31 PM

#

right, well I use postgres and there is a free tier postgres addon to heroku if you want to pracitce with a free production level set up

stark mauve Apr 24, 2020, 10:31 PM

#

oh ok thanks

native tide Apr 24, 2020, 11:17 PM

#

Hmm, anyone here well versed in Django?
I have a problem with setting up Postgres with it, but the Django server is p. dead atm, & Stackoverflow doesn't have any problems/answers to my specific issue, apparently

onyx crane Apr 25, 2020, 12:13 AM

#

nope sorry :'D

#

sliding in with my own question though:
Django:
Whats the default way of populating fields that are not supposed to be filled in by the user ?
Example: Field A is half the value of Field B + some other calculations.

unkempt snow Apr 25, 2020, 4:54 AM

#

Anyone here is using Seleniumwire?

cold socket Apr 25, 2020, 9:42 AM

#

Hey all, I have a project that has a Flask backend w/ Selenium and a React front end. Everything seems to work fine locally. I was wondering if anyone knows of a good tutorial on how to deploy this project to a production server (Ubuntu)?

toxic marten Apr 25, 2020, 10:03 AM

#

How can i login and register on instagram using requests? Someone can explain me just basics

rich plaza Apr 25, 2020, 10:25 AM

#

Hello all, here is an article on how to deploy Flask + PostgreSQL in a couple of seconds: https://docs.qovery.com/guides/tutorial/deploy-flask-with-postgresql/

Let me know what do you think about it 🙏

Deploy Flask with PostgreSQL on Qovery | Qovery

Deploy Flask with PostgreSQL on Qovery, in minutes, for free

cloud path Apr 25, 2020, 10:40 AM

#

guys, this tells me 'list object has no attribute items'

#

    ffriends = Friends.query.filter_by(account_owner=current_user.id).all()
    friends = []
    for item in ffriends.items:
        friend = Account.query.filter_by(id=item.friends_id).first()
        friends.append(friend)
    posts = []
    for friend in friends:
        post_ = Post.query.filter_by(owner=friend.id)
        posts.append(post_)
    return render_template('index-2.html')```

#

am i doing something wrong?

cold socket Apr 25, 2020, 11:02 AM

#

@rich plaza Thanks for the article it definitely makes deployment look simple. I'm just a little confused with what qovery is doing in the background. In addition to deployment is it also hosting the project?

rich plaza Apr 25, 2020, 11:04 AM

#

@rich plaza Thanks for the article it definitely makes deployment look simple. I'm just a little confused with what qovery is doing in the background. In addition to deployment is it also hosting the project?
@cold socket yes exactly, hosting, managing the database, generate SSL certificate and more than that. You can see it as the heroku of 2020 :)

cold socket Apr 25, 2020, 11:07 AM

#

@rich plaza Wow that is very convenient. So it hosts everything on AWS?

#

And does it have ssh access for each application instance?

rich plaza Apr 25, 2020, 11:12 AM

#

@rich plaza Wow that is very convenient. So it hosts everything on AWS?
@cold socket yes exactly. And you have the choice of the region

#

@cold socket yes exactly. And you have the choice of the region
@rich plaza why would you need SSH access ?

cold socket Apr 25, 2020, 11:14 AM

#

@rich plaza My Flask app also uses selenium, so to install drivers or even monitor usage

rich plaza Apr 25, 2020, 11:16 AM

#

Ah yes. Of course you can. You deploy container on Qovery. So you can install selenium and all you need

sick hedge Apr 25, 2020, 11:37 AM

#

hey i serving gridfs stream from a flask server and i am not able to do seek on videos on the html side

#

it turns out this is possible on other browsers and not on chrome due to some headers and wrong status

#

so how can i handle this on flask?

tired root Apr 25, 2020, 11:42 AM

#

use a video stream server as a cdn

#

@sick hedge

cold socket Apr 25, 2020, 11:43 AM

#

Does my python version have to be the same on production as development for Flask application?

sick hedge Apr 25, 2020, 11:44 AM

#

@tired root as to how ? the same server is also used for other purposes

tired root Apr 25, 2020, 11:44 AM

#

@cold socket Does not need to be, but prepare for quirks

cold socket Apr 25, 2020, 11:44 AM

#

How drastic of a difference is 3.7.4 vs 3.8

tired root Apr 25, 2020, 11:44 AM

#

It's highly suggested it does

#

@sick hedge Let's first separate server software and server hardware

#

I am talking about software

#

It would be generally no issue to run a second server software on the same hardware on a different port alongside nginx/apache/whatever

#

My idea would be something like a WebRTC streaming server for this case

sick hedge Apr 25, 2020, 11:46 AM

#

ahh ok

tired root Apr 25, 2020, 11:46 AM

#

@cold socket You would need to look at the changelog

#

@sick hedge I am quite sure that implementing that yourself with Flask would be a very challenging task

#

so I'd look at something like antmedia

#

A second option is to use a dedicated second hardware server to handle this task

#

via a subdomain like video.example.com

#

just point the A and AAAA record to that second IP

feral turtle Apr 25, 2020, 12:12 PM

#

Good afternoon! I'm trying to understand what are VDom but I haven't found docs about the concept on the web, just docs of libraries. Do you know where I can find a library-agnostic explanation of it? Here is what I've understood so far, is it at least correct or am I wrong?

📎 Screen_Shot_2020-04-25_at_13.10.59.png

tired root Apr 25, 2020, 12:27 PM

#

The Javascript objects are basically the virtual DOM

#

VDOM is an object that represents how it should be displayed, but it is not an actual thing

#

well, not in a pure browser view of things

#

The browser only knows one DOM

#

@feral turtle

sick hedge Apr 25, 2020, 1:25 PM

#

its working now ty @tired root

#

206 handling i mean

feral turtle Apr 25, 2020, 1:42 PM

#

@tired root Ok

#

thanks

native tide Apr 25, 2020, 1:42 PM

#

Hi

#

I have to use an API

#

To use this API I need to use curl

#

How can I get the result into a var ?

#

Like, getting the output, putting it in a var named request, then parsing it using json this way req.json()

rigid laurel Apr 25, 2020, 1:44 PM

#

Where are you using this api from?

#

just a python app?

#

If so, then you can use requests which will be much easier than curl

native tide Apr 25, 2020, 1:45 PM

#

This is how the request looks like:

curl -X GET "https://mawaqit.net/api/2.0/mosque/search?word=lyon" -H "accept: application/json" -H "Api-Access-Token: XXXXXXXX

rigid laurel Apr 25, 2020, 1:45 PM

#

Yes, thats it in the command line

#

not in python

#

is this question relate to python?

native tide Apr 25, 2020, 1:45 PM

#

How can I "translate" it to Python ?

tired root Apr 25, 2020, 1:45 PM

#

@native tide https://curl.trillworks.com/

Convert cURL command syntax to Python requests, Ansible URI, MATLAB...

Utility for converting curl commands to code

rigid laurel Apr 25, 2020, 1:45 PM

#

you'd use the requests library

feral turtle Apr 25, 2020, 1:45 PM

#

Better go to #unix if you use curl

native tide Apr 25, 2020, 1:45 PM

#

@tired root You're a hero

rigid laurel Apr 25, 2020, 1:46 PM

#

import requests 
r = requests.get("https://mawaqit.net/api/2.0/mosque/search?word=lyon", headers={"Api-Access-Token": XXXXXXXX})
r.json()

tired root Apr 25, 2020, 1:46 PM

#

@rigid laurel You forgot the params

#

or well, you included them in the url

#

but its better to send them as parameters

rigid laurel Apr 25, 2020, 1:47 PM

#

oh yeah - I didn't even notice they were a thing, just copy pasted - you're right

native tide Apr 25, 2020, 1:47 PM

#

Hero

tired root Apr 25, 2020, 1:48 PM

#

@native tide I am not. I just know how to use google

rigid laurel Apr 25, 2020, 1:49 PM

#

It is generally easier for you if you just type things into google first. THere's nothing wrong with asking here, but often you'll get an answer faster by just checking google. Of course if you're struggling to understand something, have a problem you can't solve, or want a more detailed discussion, this server is the right place to ask

native tide Apr 25, 2020, 2:02 PM

#

Yeah.

#

One more problem.

#

📎 unknown.png

#

This is how the JSON results looks like

#

I want to get the "05:06"

#

I use this

#

time = json["times"][0]

#

This should work, yeah ?

#

Because I get this error: TypeError: list indices must be integers or slices, not str

queen bough Apr 25, 2020, 2:06 PM

#

@native tide What's your code?

#

(Without the API key)

native tide Apr 25, 2020, 2:07 PM

#

    req = requests.get("https://mawaqit.net/api/2.0/mosque/search?word=lyon", headers={"Api-Access-Token": "6"})
    json = req.json()
    mosquee = json[0]["uuid"]
    req = requests.get("https://mawaqit.net/api/2.0/mosque/search?word=" + mosquee, headers={"Api-Access-Token": ""})
    json = req.json()
    fajr = json["times"][0]
    dohr = json["times"][1]
    asr = json["times"][2]
    maghreb = json["times"][3]
    icha = json["times"][4]
    ville = json["localisation"]

queen bough Apr 25, 2020, 2:08 PM

#

And it doesn't work? Try print(json) above fajr ...

native tide Apr 25, 2020, 2:08 PM

#

You were right

#

The Json is empty

queen bough Apr 25, 2020, 2:09 PM

#

mosquee = json[0]["uuid"]

Where does uuid come from? Why not id?

native tide Apr 25, 2020, 2:09 PM

#

It does come from the first request

queen bough Apr 25, 2020, 2:09 PM

#

Ah mosque/search?word= looks wrong - perhaps you meant id/uuid?

tired root Apr 25, 2020, 2:10 PM

#

req = requests.get("https://mawaqit.net/api/2.0/mosque/search?word=" + mosquee, headers={"Api-Access-Token": ""})

#

Please use the params dict for that

#

This is just yucky

native tide Apr 25, 2020, 2:11 PM

#

Okay, I fixed it

#

Thanks !

queen bough Apr 25, 2020, 2:12 PM

#

No worries.

tired root Apr 25, 2020, 2:13 PM

#

@native tide https://hastebin.com/luwosogani.py

feral turtle Apr 25, 2020, 3:45 PM

#

It's me again, I still don't understand at all what are vnodes and how they're used to render a page

feral minnow Apr 25, 2020, 4:06 PM

#

Guys how I can create a box that just show up when someone click a specific lets say submit button so the user can't accsess the whole page (just the box that shows up)

#

I just found a link that explain that

rustic pebble Apr 25, 2020, 5:13 PM

#

You can just add a function

#

js

#

Which creates a box

#

when the submit button is clicked

sick hedge Apr 25, 2020, 5:14 PM

#

Use json.loads

muted ledge Apr 25, 2020, 5:20 PM

#

who in here has created a sneaker bot?

quasi ridge Apr 25, 2020, 5:22 PM

#

there's something funny about that phrase

rigid laurel Apr 25, 2020, 7:17 PM

#

https://www.youtube.com/watch?v=NNZscmNE9QI there's a video tutorial for sneaker bots here

YouTube

Python Discord

Tutorial: How to make a sneaker bot

Ever wondered how to make a sneaker bot? You should watch this video!

Check us out at:
https://pythondiscord.com
https://discord.gg/python

▶ Play video

quasi ridge Apr 25, 2020, 7:43 PM

#

why am I afraid to click

rigid laurel Apr 25, 2020, 7:55 PM

#

Pros: you get to hear the dulcet tones of Lemon. Cons: You have to click

tired root Apr 25, 2020, 8:55 PM

#

https://www.reddit.com/r/programming/comments/g7xweu/another_1liner_npm_package_broke_the_js_ecosystem/

r/programming - Another 1-liner npm package broke the JS ecosystem

545 votes and 162 comments so far on Reddit

rigid laurel Apr 25, 2020, 9:04 PM

#

it's not from the is-odd guy, it's a different person. Not sure if thats good or bad

tiny siren Apr 26, 2020, 12:19 AM

#

help guys

#

https is saying that my website is not secure

#

but http is fine

cold anchor Apr 26, 2020, 12:20 AM

#

if you don't have a certificate that supports https then the https connection will not be secure

tiny siren Apr 26, 2020, 12:21 AM

#

📎 unknown.png

#

@cold anchor can you help me fix it

cold anchor Apr 26, 2020, 12:21 AM

#

that looks pretty explicit, you need to upgrade the version of tls that you support

tiny siren Apr 26, 2020, 12:21 AM

#

how do i do that

cold anchor Apr 26, 2020, 12:22 AM

#

depends on a lot of things, like the hosting service you're using primarily

tiny siren Apr 26, 2020, 12:22 AM

#

google

cold anchor Apr 26, 2020, 12:22 AM

#

can you be more explicit?

#

google cloud platform? google domains? google app engine..?

tiny siren Apr 26, 2020, 12:23 AM

#

google cloud platform

cold anchor Apr 26, 2020, 12:23 AM

#

just keep giving details please

tiny siren Apr 26, 2020, 12:23 AM

#

ok

#

i use google cloud platform vm for my hosting

#

and name.com for my domain

#

and i installed my certificate using certbot

#

ubuntu/apache

cold anchor Apr 26, 2020, 12:23 AM

#

directly on a server? are you using a load balancer?

tiny siren Apr 26, 2020, 12:24 AM

#

yes, over ssh. no load balancer.

cold anchor Apr 26, 2020, 12:24 AM

#

ok, so you're pointing your domain name directly to your server that's running apache on port 443?

tiny siren Apr 26, 2020, 12:24 AM

#

yes

#

i'll just double check though

cold anchor Apr 26, 2020, 12:25 AM

#

when did you install the certificate?

tiny siren Apr 26, 2020, 12:25 AM

#

about half an hour ago

cold anchor Apr 26, 2020, 12:26 AM

#

and you followed these instructions https://certbot.eff.org/lets-encrypt/ubuntuxenial-apache ? (or whatever version of ubuntu you're running)

Certbot - Ubuntuxenial Apache

Automatically enable HTTPS on your website with EFF's Certbot, deploying Let's Encrypt certificates.

tiny siren Apr 26, 2020, 12:26 AM

#

yes

#

(18:04)

cold anchor Apr 26, 2020, 12:28 AM

#

it looks like it might be an issue with the apache config https://tecadmin.net/enable-tls-in-modssl-and-apache/

TecAdmin

Rahul

How To Enable TLS 1.3/1.2 in Apache & Mod_SSL - TecAdmin

How to disable SSLv2, SSLv3, TLS 1.0, TLS 1.1 in mod_ssl and Apache. Also this tutorial will help you to enable TLS 1.3, TLS 1.2 in Apache server.

#

try following those instructions and see if it works

tiny siren Apr 26, 2020, 12:32 AM

#

how do i edit the apache configuration? @cold anchor

cold anchor Apr 26, 2020, 12:33 AM

#

do you know where the config is that you're running? this is pretty basic stuff, how did you get it running in the first place?

tiny siren Apr 26, 2020, 12:33 AM

#

apt-get install apache2 xD?

#

i didn't have to configure anything

cold anchor Apr 26, 2020, 12:39 AM

#

just google the default location for the apache config

tiny siren Apr 26, 2020, 12:52 AM

#

apache2.conf ? @cold anchor

cold anchor Apr 26, 2020, 12:53 AM

#

that sounds like the right file

tiny siren Apr 26, 2020, 12:53 AM

#

then i'm doing something wrong

cold anchor Apr 26, 2020, 12:53 AM

#

did you restart apache after editing that file?

tiny siren Apr 26, 2020, 12:53 AM

#

i don't see it in the file

#

📎 unknown.png

cold anchor Apr 26, 2020, 12:54 AM

#

is that the whole file?

tiny siren Apr 26, 2020, 12:54 AM

#

there's more but i don't see SSLProtocol -all +TLSv1.2

#

yeah it is not there

cold anchor Apr 26, 2020, 1:04 AM

#

you'll have to add it whereever you're handling the domain routing

native tide Apr 26, 2020, 4:06 AM

#

is it possible to make my website autoreload when i make changes to the code?

#

i'm using flask

outer apex Apr 26, 2020, 4:07 AM

#

@native tide set the debug config variable to True

native tide Apr 26, 2020, 4:07 AM

#

what does that do?

outer apex Apr 26, 2020, 4:09 AM

#

https://flask.palletsprojects.com/en/1.1.x/quickstart/#debug-mode

#

Sorry, not quite the DEBUG!

native tide Apr 26, 2020, 4:11 AM

#

i dont understand

#

export FLASK_ENV=development
$ flask run

#

i just run this?

outer apex Apr 26, 2020, 4:16 AM

#

yup

cloud path Apr 26, 2020, 8:16 AM

#

guys this query get me the error "str has no attribute id"

#

posts = Post.query.filter_by(owner=user.id).all()

#

but i'm using owner that is declared int type and the id of the user that is also declared as int

#

solved

supple loom Apr 26, 2020, 8:20 AM

#

Can anyone help me with dual booting linux with windows

tired root Apr 26, 2020, 8:35 AM

#

#web-development : Help with web technologies such as Flask, Django, HTML, CSS, and JS.

supple loom Apr 26, 2020, 8:49 AM

#

I know ...i asked in windows i got no response either

restive kindle Apr 26, 2020, 8:51 AM

#

there are plently of tutorials on youtube

supple loom Apr 26, 2020, 9:01 AM

#

I saw many...but something is different in my case... It's not showing the unallocated partition

feral minnow Apr 26, 2020, 9:16 AM

#

@supple loom if you didn't find the answer you can ask here https://www.reddit.com/r/linux4noobs?utm_medium=android_app&utm_source=share

r/linux4noobs

#

It's a linux sub reddit I think they will help

foggy quarry Apr 26, 2020, 10:00 AM

#

How to consume your own rest api, within your flask web app? do code like this considered good?

@app.route('/hello/<name>')
def hello(name):
    info = requests.get('http://localhost:5000/hello/'+name)
    return info.text

tame river Apr 26, 2020, 12:46 PM

#

hello i am using django restframework and trying to make a simple API.
I declared my models and serializers but i get an error.

#

my model

📎 unknown.png

#

serializer

📎 unknown.png

#

the error

📎 unknown.png

#

the error says ArtWork object has no attribute arts even tho i have declared arts = ArtSerializer(...) and also passed it in Meta of ArtWorkSerializer

tiny siren Apr 26, 2020, 2:04 PM

#

how can i save something like this as a static website for offline use? http://patorjk.com/software/taag/

hard moon Apr 26, 2020, 2:15 PM

#

Hello, are there React Pros here?

cloud path Apr 26, 2020, 5:32 PM

#

guys i should run a flask web app on a web app without SSH access, it is microsoft azure, so i cannot use the terminal to install gunicorn, and start it

#

is there a way to start the web app anyway?

wild thunder Apr 26, 2020, 5:32 PM

#

hey, what is wrong in this chunk of code? ```html
<link rel="stylesheet" href="{ url_for('static', filename='signin.css')}" >

my css is not working at all

#

i have a bootstrap import above it and this,
the bs is via the link provided in the site, mine is from my machine, the folders are like

[static]
[css]
signin.css

feral minnow Apr 26, 2020, 6:53 PM

#

You forget to put the css folder

#

<link rel="stylesheet" href="{ url_for('static', filename='css/signin.css')}" >

wild thunder Apr 26, 2020, 6:54 PM

#

i guess i've tried that, but i'll do it again

#

if it's working, the problem is that it's not overwriting the bootstrap css

feral minnow Apr 26, 2020, 6:55 PM

#

yup and if its not working I think you should restart the browser because this what I do so you press ctrl+shift+r

#

try to put it under the bootstrap link

wild thunder Apr 26, 2020, 6:56 PM

#

it's already under :c

feral minnow Apr 26, 2020, 6:56 PM

#

you saved the file?

#

wait

#

here's mine <link rel="stylesheet" href="{{ url_for('static', filename='css/signin.css') }}">

#

try this

#

maybe it will work i think you forget to put 2 {

wild thunder Apr 26, 2020, 7:01 PM

#

wow

#

i guess

#

it worked

#

i'll try to overwrite some bs to see if it's really working

feral minnow Apr 26, 2020, 7:02 PM

#

nice

wild thunder Apr 26, 2020, 7:09 PM

#

how to use jinja to import just a chunk of code? like i dont want to extend

#

but idk what are the keywords

#

to search online

#

i want to make a file fonts.html

#

throw all my font links in there

#

and push it to the main 'base.html' file

cloud path Apr 26, 2020, 7:30 PM

#

hey guys

#

does anyone know a good guide to run up a flask web app on microsoft azure?

midnight geyser Apr 26, 2020, 8:03 PM

#

https://mayank-aggarwal.herokuapp.com/

Hey guys,
Take a look at my web portfolio that I recently created.
Would appreciate any kind of opinions

feral minnow Apr 26, 2020, 8:11 PM

#

nice website

#

Guys im making a project which scrape data from another website but at some point it freeze

#

and stop scraping/downloading

#

so is the problem from my pc or I have a mistake in the program but it work fine without error it just freeze and stop scraping?

#

or is it a problem from the website im taking data from becuase im sending too many requests?

rigid laurel Apr 26, 2020, 8:18 PM

#

It's probably a code issue

feral minnow Apr 26, 2020, 8:24 PM

#

oh

#

are you sure because it download it normally but suddenly stop

#

the downloading process is too slow lol

rigid laurel Apr 26, 2020, 8:53 PM

#

It's possible you're getting stuck in some tricky infinite loop that you can't see. Or that you're scraping has somehow got you endlessly bouncing between two links. It seems unlikely to me that the code is just freezing - and if it is, its probably not freezing, just you're not accounting for some behaviour that you need to be. It's very difficult to provide help with actual code.

IF you're looking to debug, try removing as many factors as possible, then adding them back bit by bit til you encounter the problem again

feral minnow Apr 26, 2020, 9:14 PM

#

        #Get the html code & create beautifulSoup object
        link = link
        res = requests.get(link)
        res.raise_for_status()
        soup = bs(res.text,"html.parser")
       
           #Get the folder name
        regexName = re.compile(r'chapter-\w+\.?\w*/?')
        regexFind = regexName.search(link).group()
        print(f"This is it {regexFind}")
        fullName = regexFind
        #print(fullName)
        
        if not os.path.exists(f'/tmp/server/manga/{folderName}/{fullName}'):
            os.makedirs(f'/tmp/server/manga/{folderName}/{fullName}')  #create the chapter file  

        imgElem = soup.select("body > div.body-site > div.container-chapter-reader > img")#Get the css selector for the manga image
        print(len(imgElem))       
        for i in range(len(imgElem)):#Page loop
            src = imgElem[i].get('src')
            fullLink = src
            print(src)
            res = requests.get(fullLink)
                    
           
            
            animeFile=open(os.path.join(f'/tmp/server/manga/{folderName}/{fullName}',os.path.basename(fullLink)),'wb+')#file name
                   
            print(f'\nDownloading  {fullLink}')
            for chunk in res.iter_content(100000):#File download
                animeFile.write(chunk)
            animeFile.close()
        print(f'\n{fullName} Is Done\n')
        nextElem=soup.select('a.navi-change-chapter-btn-next')#Get the css selector for the next button
        try:
            href=nextElem[0].get('href')#Link for the next chapter
        except IndexError:
               flash("Thanks for using our website")
              
                
        folderPath = f"/tmp/server/manga/{folderName}"   
           link=href
        if fullName == chEnd:
            flash("Downloaded files to the server successfully.")
            zip_files(folderPath)
            break
        #link=href```

#

@rigid laurel thx... here's the code

#

I have a while loop but i don't think its the problem

#

because the problem happen inside the first for loop

sudden crest Apr 26, 2020, 9:22 PM

#

why the hell does Jinja not put the super() block where you goddamn tell it to

#

it always puts the inherited stuff after

#

i mean come on

#

that's completely stupid

#

what possible advantage does that have

#

/rant

native tide Apr 27, 2020, 12:04 AM

#

I am looking to integrate a rest API with a discord bot, but I am not 100% sure the best way to do it. Threading the Flask/Quart/AIOHTTP receiver really doesn't solve the issue of being able to communiate with the main thread where my bot it. Any ideas to point me in the right direction for reasearch?

forest summit Apr 27, 2020, 12:25 AM

#

is there anyone here who can help me with python

zealous siren Apr 27, 2020, 1:25 AM

#

Kocis shove it in container

#

Then run it in web app

quasi ridge Apr 27, 2020, 1:26 AM

#

wrong channel?

zealous siren Apr 27, 2020, 1:26 AM

#

https://discordapp.com/channels/267624335836053506/366673702533988363/704051818447110146

quasi ridge Apr 27, 2020, 1:29 AM

#

oh 🙂

elder nebula Apr 27, 2020, 7:09 AM

#

I am doing appointment application with python and I have all done except calendar. Is there ready to go django calendar package what let's you locate appointment with date & time

#

I have checked out FullCalendar, but it only let's you use the schedule if you share the source code.

cloud path Apr 27, 2020, 7:38 AM

#

guys how can i deploy my flask web app with build automation turned on 'ON'?

#

to make the system doing "install -r requirements.txt" automatically

#

@zealous siren thanks i noticed right now your reply sorry

#

btw what about the requirements?

#

azure doesn't have a SSH to do the command to activate the env or install the requirements

#

it has just a row to do the startup command

native tide Apr 27, 2020, 8:08 AM

#

is flask-login feature client validation or server validation

#

?

restive kindle Apr 27, 2020, 8:10 AM

#

Everything to do with validation is server side

native tide Apr 27, 2020, 8:10 AM

#

doesn't js do client side form validaiton?

restive kindle Apr 27, 2020, 8:13 AM

#

You mean checking if a field is empty or like logging in.

solar hatch Apr 27, 2020, 9:57 AM

#

Any rest api/API Projects

#

Easy

#

And I don't know the difference between rest and api

languid kite Apr 27, 2020, 10:06 AM

#

hello , i am beginner django developer and i got task to create datasource website (store data from excel and show on web with searches) , is that hard to accomplish using django ?
website eg. https://datasource.kapsarc.org/pages/home/

Home Page — KAPSARC Data Portal

KAPSARC aggregated open data aligned to advancing your energy economics understanding and research

native tide Apr 27, 2020, 10:14 AM

#

@native tide validation is always server-side

#

@solar hatch https://youtu.be/s7wmiS2mSXY

YouTube

MuleSoft Videos

What is an API?

What exactly is an API? Finally learn for yourself in this helpful video from MuleSoft, the API experts. https://www.mulesoft.com/platform/api

The textbook definition goes something like this:

“An application programming interface (API) is a set of routines, protocols, and...

▶ Play video

solar hatch Apr 27, 2020, 10:25 AM

#

Any projects

#

@native tide

#

With flask

native tide Apr 27, 2020, 10:46 AM

#

With flask
@solar hatch Flask-rest framework or just Flask without the framework?

solar hatch Apr 27, 2020, 10:48 AM

#

Without

#

@native tide

native tide Apr 27, 2020, 10:51 AM

#

Without
@solar hatch Try this assessment. It was for BUILDforSDG Andela https://drive.google.com/file/d/1UEPgYqd9Bjb1ZI6wKcu7V7KZglkHMjh4/view . It is a Covid-19 situation assessment API.

Google Docs

Step 1 - Start Your Assessment.pdf

#

Create a weather app with Flask

#

https://www.pythonistaplanet.com/python-flask-project-ideas/

Pythonista Planet

Ashwin Joy

7 Python Flask Project Ideas for Beginners | Pythonista Planet

Flask can be used to create some amazing web applications. Moreover, it is a lightweight framework, and it is pretty easy to learn. Here is a list of some cool projects that you can do by using the Flask web framework.

frosty mauve Apr 27, 2020, 12:22 PM

#

In my Django Template, I am using {{song.books.all|join:"," }}, this is returning a list of books from each song. Each book has an endpoint but when I use <a href it hyperlinks the entire joined list of books. I would like to hyper link each book with it's own href. Anyway I can pass join with href?

frosty mauve Apr 27, 2020, 2:55 PM

#

Anyone?

zealous siren Apr 27, 2020, 3:05 PM

#

@cloud path You need to build a container, put it in Container Registry then let Azure Web App pull the container down and run it

#

Azure has container registry and you can even build using Container Registry or build in Azure Devops or build inside your own build system and push to Azure Registry Container

candid gull Apr 27, 2020, 3:34 PM

#

I posted this in general; did not realise their was a specific channel.

#

Hi all, I'm new to Python. I am using Flask to create a small REST API. This REST API has a middleware where I want to add a header to the request to access it in the Resource (I am using Flask-RESTful). I get an error that the .headers is immutable... is there a way to create a new header, i.e. X-User-Id? Or, how would you pass something from a middleware to the Resource?

#

The middleware:

def user_id_header(f):
    def get_and_load_jwk():
        r = requests.get('http://oathkeeper-api:4456/.well-known/jwks.json')
        key = r.json()['keys'][0]
        jwk = JsonWebKey(algorithms=JWK_ALGORITHMS)
        return jwk.loads(key)

    @wraps(f)
    def inject_user_id(*args, **kwargs):
        token = request.headers.get('Authorization').split(' ')[1]
        jwk = get_and_load_jwk()
        sub = jwt.decode(token, jwk)['sub']
        print(sub, file=sys.stderr)
        request.headers.set('x-user-id', sub)
        return f(*args, **kwargs)
    return inject_user_id

cold anchor Apr 27, 2020, 3:43 PM

#

in general you shouldn't be modifying the incoming request headers

#

the client sent you a request and you should honor (or not honor) what comes in, but you shouldn't modify it

#

if you want to use a "context local" over the period of processing a request, this is exactly what flask.g is for. in your case flask.g.current_user_id = sub and you can access flask.g.current_user_id anywhere in your code that is in the context of a request

candid gull Apr 27, 2020, 3:52 PM

#

Brilliant! I did not know Flask offered per request context.

#

Thanks @cold anchor

#

@cold anchor Is g an extra package I need to import?

cold anchor Apr 27, 2020, 3:56 PM

#

nope

#

from flask import g

candid gull Apr 27, 2020, 3:56 PM

#

Yeah, figured

#

Thanks!

spiral oak Apr 27, 2020, 6:30 PM

#

Hello, I've been installed django. I have a probleme because when I use a command (ex: django-admin startproject) files are created but nothing is written in the CMD. Actually this becomes a problem when I try to do python .\manage.py makemigration or python .\manage.py createsuperuser ...
I had reinstall 4 times python switching between 3.7 and 3.8 and I don't understand the probleme.
If somebody have an idea I'm listening

nota bene : pip install ... has traceback

queen bough Apr 27, 2020, 6:32 PM

#

@spiral oak Can you try PowerShell?

#

It's probably an issue with your CMD not Python/Django, though.

spiral oak Apr 27, 2020, 6:44 PM

#

it seems not, the power shell has the same issue

queen bough Apr 27, 2020, 7:07 PM

#

@spiral oak Can you post a screenshot?

spiral oak Apr 27, 2020, 7:11 PM

#

📎 unknown.png

#

the server run in pycharm

obsidian parrot Apr 27, 2020, 8:57 PM

#

is it better to use django or flask

#

im gonna be using a couple api's

#

and mySQL

zealous siren Apr 27, 2020, 8:58 PM

#

Are you building API or consuming them?

obsidian parrot Apr 27, 2020, 8:58 PM

#

consuming

#

its my first time so

#

consuming them

zealous siren Apr 27, 2020, 8:59 PM

#

then doing what with data?

#

do either, consuming APIs doesn't matter, you can do that with aiohttp or requests

#

don't even need Django/Flask for that

obsidian parrot Apr 27, 2020, 9:00 PM

#

basically what im doing

#

i made a layout for myself, its the first time im taking on a challenge like this

#

i had an idea to make like a website you could go on, you would log in and you could get notifications from all of your applications

#

so like instead of going to every indivisual thing like gmail, and then insta, and then opening up snapchat

#

just as an example

#

if you click on any of the notifications it will direct you to the website

zealous siren Apr 27, 2020, 9:03 PM

#

ok, so Flask is quicker to get going, Django more powerful

#

pick whatever poison you want to start with

obsidian parrot Apr 27, 2020, 9:05 PM

#

ahh i see

native tide Apr 27, 2020, 11:05 PM

#

anyone in here familiar with WP steam auth and tournamatch ? (for the wordpress)

native tide Apr 28, 2020, 12:53 AM

#

im learning in that class right now @shy holly

shy holly Apr 28, 2020, 12:53 AM

#

@native tide nice

native tide Apr 28, 2020, 12:57 AM

#

idk

shy holly Apr 28, 2020, 2:53 AM

#

Django
Do you guys know how to change a specific template,
I want to change the "change_list.html" template but only for a certain app

shy holly Apr 28, 2020, 3:51 AM

#

how I solved it :

{% if opts.app_label == 'MY APP NAME' %}
HTML CODE
{% endif %}```

tired lava Apr 28, 2020, 5:28 AM

#

guys

#

If I bought a domain

#

can I just use it on wordpress

#

or will it cost me a fee?

native tide Apr 28, 2020, 6:32 AM

#

📎 image0.jpg

grave hound Apr 28, 2020, 6:53 AM

#

@obsidian parrot from my experience, if you are going to be making user accounts, I would suggest using Django

#

makes it much easier to also know Flask before learning Django

gilded monolith Apr 28, 2020, 8:19 AM

#

i'm starting next week at a new job, they use PostGresSQL and django, what are their strong point compared to flask and MySQL. What little project could i do, specifically to understand the strength of both of them, in a short time (5/10h? )

#

what problem do they resolve in other words

grave hound Apr 28, 2020, 10:07 AM

#

@gilded monolith I haven't used PostGresSQL or MySQL but I can give some basic advice on Flask and Django. Flask is a really good "microframework" that allows you to build simple websites fast. So you can build a website that does simple jobs, probably something like a page about yourself or something like that, nothing with user accounts and things like that. Django is a much more advanced web framework that simplifies making web apps a lot but also allows you to have a lot of control over it. I haven't used it much but it made having users on my page a lot simpler, because Django handles everything (hashing SHA-256 and salting) of passwords and it has an admin page to use to look over your page's details

#

I don't know if I am spreading misinformation but that is what I got from building a small website

#

It also uses sqlite3 for database management in a very simple way

#

But you can change that after starting your project

gilded monolith Apr 28, 2020, 10:44 AM

#

Yeah i already did smol stuff with Flask and such, i was just wondering what i should pay attention to and what knowledge to quick grab

drowsy river Apr 28, 2020, 10:54 AM

#

hello everyone, currently building a Django webapp as a front end to my Postgresql database. I am using elastic beanstalk to deploy to AWS (the database also lives on AWS). The website works locally (it's just a simple table at the moment) but whenever i run eb deploy i get the following error:
2020-04-28 10:23:56 ERROR [Instance: i-0e140fa936b76bee1] Command failed on instance. An unexpected error has occurred [ErrorCode: 0000000001].
2020-04-28 10:23:56 INFO Command execution completed on all instances. Summary: [Successful: 0, Failed: 1].

#

I can't really seem to find advice online for this error, and have followed tutorials to get to this point (including the AWS guide). But I can't seem to figure it out. Is there some rookie mistake I am making here, looking for any help have been stuck for 3-4 hours on this.

tender crater Apr 28, 2020, 12:44 PM

#

I am currently working in Flask, I am looking for a way to serialize a SQLAlchemy model to JSON (to build an /api route). Anybody has any advice on best practices?

cold anchor Apr 28, 2020, 12:59 PM

#

marshmallow is the standard for doing that https://marshmallow.readthedocs.io/en/stable/

frosty mauve Apr 28, 2020, 1:08 PM

#

Uhhhhh, I must be silly but in Django I am trying to give a rating to a book. I made a view that will create a rating for a book by passing in the current book, and a integer rating. This does work if I use rating/stars=5 but I want to populate this with the value from a select element. Does anyone know how to do this?

`<select id="rater">
<option value="1">1</option>
....
</select>

<a href="{% url 'books:submit-rating' bookpk=book.pk stars=5 %}" class='btn btn-success' type="submit">Rate Item!</a>
<a href="{% url 'books:submit-rating' bookpk=book.pk stars=rater.value %}" class='btn btn-success' type="submit">Rate Item!</a> `

gilded monolith Apr 28, 2020, 1:58 PM

#

your html request doesn't contain the selected value ? i had similar problem with flask because it was <select name="rater"> for some reason

#

not sure if i understand your problem and if that's gonna resolve it anyway :/

frosty mauve Apr 28, 2020, 2:15 PM

#

@gilded monolith I added form action before it - and it is processing now. However since there are several cards with the same form, it is only updating the first one....

tiny siren Apr 28, 2020, 3:05 PM

#

is it bad to redirect an unsecure dns to a secure one?

glass sandal Apr 28, 2020, 3:08 PM

#

Guys I made a flask chat website with flask-websocket and flask but when I deployed it to heroku it is unable to connect to it

#

Like the website loads

#

But the socket doesn't

#

And I can't send messages

#

The code looks like this :

from flask import Flask, render_template, request, make_response
from flask_socketio import SocketIO, send

app = Flask(__name__)
app.config["SECRET_KEY"] = "dsa987hda*&^SD*(Q*^Tia7sd"
socketio = SocketIO(app,cors_allowed_origins="*")

@app.route('/')
def index():
    return render_template("index.html")

@socketio.on('message')
def handle_msg(msg):
    send(msg, broadcast=True)

#

The HTML :

<html>
    <head>
        <title>Hello</title>
        <script type="text/javascript" src="static/socket.io.js"></script>
        <script src="static/jquery.min.js"></script>
    </head>
    <body>
        <script type="text/javascript">
            $(document).ready(function () {
                var socket = io.connect("https://chath2o.herokuapp.com/");

                socket.on("connect", function () {
                    socket.send("User has connected!");
                });

                socket.on("message", function (msg) {
                    $("#messages").append("<li>" + msg + "</li>");
                });

                $("#sendButton").on("click",function() {
                    socket.send("User : " + $('#myMessage').val());
                    $('#myMessage').val('');
                });
            });
        </script>
        <ul id="messages"></ul>
        <input type="text" id="myMessage" />
        <button id="sendButton">Send</button>
    </body>
</html>

#

WSGI.py :

from app import socketio, app

if __name__ == "__main__":
    socketio.run(app)

#

In case you wanted to test it : https://chath2o.herokuapp.com/

zealous siren Apr 28, 2020, 3:34 PM

#

does Heroku handle Websockets?

cold anchor Apr 28, 2020, 3:35 PM

#

yes

zealous siren Apr 28, 2020, 3:35 PM

#

Radarh2o, free Heroku?

cold anchor Apr 28, 2020, 3:36 PM

#

I have a running socket server on Heroku (https://app.metrecord.com) and it's on a paid server, but even when it was free, I just had to set the socket disconnect/reconnect to be every 45 seconds instead of holding the connection because heroku stops it at 55 seconds

#

looks like a lot of 400s, might be good to check the logs

glass sandal Apr 28, 2020, 3:42 PM

#

Yes free server

#

And always it keeps giving "POST 400"

#

Something like that

zealous siren Apr 28, 2020, 3:43 PM

#

Heroku is just so limiting, it's sometimes hard to tell what's app and what's not

glass sandal Apr 28, 2020, 3:43 PM

#

I mean is it a fix?

#

Like any alternative

#

or any more lines of code

zealous siren Apr 28, 2020, 3:43 PM

#

put it into container, run it somewhere else?

#

that will cost money

glass sandal Apr 28, 2020, 3:44 PM

#

I mean like any alternative websites (Except pythonanywhere)

zealous siren Apr 28, 2020, 3:44 PM

#

digitalocean

#

linode

glass sandal Apr 28, 2020, 3:44 PM

#

And it is paid?

zealous siren Apr 28, 2020, 3:44 PM

#

yes

glass sandal Apr 28, 2020, 3:44 PM

#

Isn't there free ones?

zealous siren Apr 28, 2020, 3:44 PM

#

compute costs money

cold anchor Apr 28, 2020, 3:44 PM

#

deploying to a different place won't get rid of the 400s unless they're caused by the infrastructure

#

which is unlikely

zealous siren Apr 28, 2020, 3:45 PM

#

well, I assume it works locally

glass sandal Apr 28, 2020, 3:45 PM

#

It works

#

I tested on our local wifi

cold anchor Apr 28, 2020, 3:45 PM

#

find the root of the 400s

glass sandal Apr 28, 2020, 3:45 PM

#

And like no 400s

zealous siren Apr 28, 2020, 3:45 PM

#

what 400 are you getting?

cold anchor Apr 28, 2020, 3:45 PM

#

have you looked at the logs?

glass sandal Apr 28, 2020, 3:45 PM

#

Yea

cold anchor Apr 28, 2020, 3:45 PM

#

what do they say?

glass sandal Apr 28, 2020, 3:45 PM

#

Wait I send it

#

2020-04-28T15:41:06.640684+00:00 app[web.1]: 10.11.150.203 - - [28/Apr/2020:15:41:06 +0000] "GET /socket.io/?EIO=3&transport=polling&t=N71SkoE&sid=e9ee2db286e940d2ab54ed454729aff5 HTTP/1.1" 200 39 "https://chath2o.herokuapp.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:76.0) Gecko/20100101 Firefox/76.0"
2020-04-28T15:41:06.542476+00:00 heroku[router]: at=info method=GET path="/socket.io/?EIO=3&transport=polling&t=N71SknE" host=chath2o.herokuapp.com request_id=d67544f8-cafd-40e4-9b8f-df4777b4968f fwd="65.96.225.92" dyno=web.1 connect=0ms service=3ms status=200 bytes=375 protocol=https
2020-04-28T15:41:06.643429+00:00 heroku[router]: at=info method=GET path="/socket.io/?EIO=3&transport=polling&t=N71SkoE&sid=e9ee2db286e940d2ab54ed454729aff5" host=chath2o.herokuapp.com request_id=5fec1b35-e7be-41ff-8824-84c5a88475c5 fwd="65.96.225.92" dyno=web.1 connect=1ms service=7ms status=200 bytes=258 protocol=https
2020-04-28T15:41:06.638383+00:00 heroku[router]: at=info method=POST path="/socket.io/?EIO=3&transport=polling&t=N71SkoC&sid=e9ee2db286e940d2ab54ed454729aff5" host=chath2o.herokuapp.com request_id=c2f4a5c3-1f1d-49c2-9017-47a34dbc0a94 fwd="65.96.225.92" dyno=web.1 connect=2ms service=4ms status=200 bytes=266 protocol=https
2020-04-28T15:41:18.606198+00:00 heroku[router]: at=error code=H12 desc="Request timeout" method=GET path="/socket.io/?EIO=3&transport=polling&t=N71SYoM&sid=37cd16e0033e4e77af9f6e6f2e66b738" host=chath2o.herokuapp.com request_id=49924344-ed06-4448-8f70-c4cacefbd6f1 fwd="108.18.36.173" dyno=web.1 connect=0ms service=30001ms status=503 bytes=0 protocol=https```

#

And

#

The error :

#

Failed to load resource: the server responded with a status of 400 (BAD REQUEST)

#

In the console

#

of the browser

#

And it keeps trying to connect and spams "User has connected" (It reconnects every 10 secs

#

)

zealous siren Apr 28, 2020, 3:49 PM

#

https://github.com/socketio/socket.io/issues/1942

GitHub

Error during WebSocket handshake: Unexpected response code: 400 · I...

Can't find out a solution, I get this error on the browser console: WebSocket connection to 'ws://.../socket.io/?EIO=2&transport=websocket&sid=p3af7ZNfvogtq6tAAAG0&a...

#

my guess is Heroku Load balancer is getting mad

#

lower time as baker suggested

glass sandal Apr 28, 2020, 3:52 PM

#

Should I try connecting Javascript's socket to domain IP?

cold anchor Apr 28, 2020, 3:53 PM

#

it might be worth following this project template https://github.com/sandeepsudhakaran/rchat-app

GitHub

sandeepsudhakaran/rchat-app

A chat app, implemented using Flask-SocketIO with both the database (PostgreSQL) and the app deployed in Heroku. It also has user registration and authentication functionalities. - sandeepsudhakara...

#

especially the Procfile

glass sandal Apr 28, 2020, 3:54 PM

#

hmmmmm

#

I'll try the Procfile

#

And btw

#

The site ip has the same port as a normal flask app? (5000) or 80?

cold anchor Apr 28, 2020, 3:58 PM

#

heroku will always give your site ports 80 and 443

glass sandal Apr 28, 2020, 3:58 PM

#

Oh

#

I mean what could be the problem? Heroku or the code?

#

Cause the code works perfect locally

tiny siren Apr 28, 2020, 4:04 PM

#

what happens if you get 2 in binary 😳

glass sandal Apr 28, 2020, 4:04 PM

#

But when I deploy it doesn't connect to flask-websocket

tiny siren Apr 28, 2020, 4:04 PM

#

that's what happens when you use free

glass sandal Apr 28, 2020, 4:08 PM

#

Maybe

cold anchor Apr 28, 2020, 4:11 PM

#

it's pretty sweeping to say this is caused by using the free tier vs the complexities of deploying to a remote server

#

what's your procfile?

tiny siren Apr 28, 2020, 4:21 PM

#

how come my main domain is protected and my subdomain isn't

#

i am using a loadbalancer :)

cold anchor Apr 28, 2020, 4:22 PM

#

what do you mean by protected?

#

(is this AWS?)

tiny siren Apr 28, 2020, 4:23 PM

#

GCP

#

i mean secure

#

ssl

zealous siren Apr 28, 2020, 4:24 PM

#

that's #414737889352744971 questions and it's because DNS

tiny siren Apr 28, 2020, 4:24 PM

#

the certificate should protect all subdomains

zealous siren Apr 28, 2020, 4:24 PM

#

no

tiny siren Apr 28, 2020, 4:25 PM

#

?

zealous siren Apr 28, 2020, 4:26 PM

#

the certificate may or may not protect all subdomains, and again DNS can bite you

#

welcome to my world

rich plaza Apr 28, 2020, 4:27 PM

#

Hello guys, do you need to host your flask app easily ? https://docs.qovery.com/guides/tutorial/deploy-flask-with-postgresql/

Deploy Flask with PostgreSQL on Qovery | Qovery

Deploy Flask with PostgreSQL on Qovery, in minutes, for free

lavish prismBOT Apr 28, 2020, 4:41 PM

#

Hey @glass sandal!

It looks like you tried to attach file type(s) that we do not allow (.txt). We currently allow the following file types: .3gp, .3g2, .avi, .bmp, .gif, .h264, .jpg, .jpeg, .m4v, .mkv, .mov, .mp4, .mpeg, .mpg, .png, .tiff, .wmv, .svg, .psd, .ai, .aep, .xcf, .mp3, .wav, .ogg.

Feel free to ask in #community-meta if you think this is a mistake.

glass sandal Apr 28, 2020, 4:42 PM

#

Tried installing geventwebsocket and got :

remote:        ERROR: Command errored out with exit status 1: /app/.heroku/python/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py'"'"'; __file__='"'"'/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-zi7pewjq/install-record.txt --single-version-externally-managed --compile --install-headers /app/.heroku/python/include/python3.6m/geventwebsocket Check the logs for full command output.
remote:  !     Push rejected, failed to compile Python app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !       Push rejected to chath2o.
remote:
To https://git.heroku.com/chath2o.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/chath2o.git'

#

And before that :

remote:             command: /app/.heroku/python/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py'"'"'; __file__='"'"'/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-zi7pewjq/install-record.txt --single-version-externally-managed --compile --install-headers /app/.heroku/python/include/python3.6m/geventwebsocket
remote:                 cwd: /tmp/pip-install-l39jxgzd/geventwebsocket/
remote:            Complete output (14 lines):
remote:            running install
remote:            Traceback (most recent call last):
remote:              File "<string>", line 1, in <module>
remote:              File "/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py", line 47, in <module>
remote:                'geventwebsocket = geventwebsocket.cli:cli',
remote:              File "/app/.heroku/python/lib/python3.6/distutils/core.py", line 148, in setup
remote:                dist.run_commands()
remote:              File "/app/.heroku/python/lib/python3.6/distutils/dist.py", line 955, in run_commands
remote:                self.run_command(cmd)
remote:              File "/app/.heroku/python/lib/python3.6/distutils/dist.py", line 974, in run_command
remote:                cmd_obj.run()
remote:              File "/tmp/pip-install-l39jxgzd/geventwebsocket/setup.py", line 20, in run
remote:                raise Exception("You probably meant to install and run gevent-websocket")
remote:            Exception: You probably meant to install and run gevent-websocket

onyx crane Apr 28, 2020, 4:56 PM

#

Django
What is the normal way of populating fields in your model that are not reliant on user input, but on some calculations or references.

I "solved" it buy building an __init__ function, but for some reason that messes with the Inherited Models class ...
Is there a default other way, or is there something that im missing ? (Couldnt get the super().__init__ to work either)

 def __init__(self):
        self.pc_slug = self.pc_name.replace(" ", "-")

        self.pc_hpMax = self.calc_modifier(self.pc_con) * 20 + self.pc_race.race_hp
        self.pc_init = self.calc_modifier(self.pc_rfx) + 6
        self.pc_speed = self.pc_race.race_speed
        self.pc_carryMax = self.calc_modifier(self.pc_str) * 5 + self.pc_race.race_carry

supple loom Apr 28, 2020, 5:15 PM

#

  File "./main.py", line 7, in <module>
    from app import crud, models, schemas
  File "./app/crud.py", line 3, in <module>
    from . import models, schemas
  File "./app/schemas/__init__.py", line 1, in <module>
    from .item import Item, ItemCreate, ItemInDB, ItemUpdate
ModuleNotFoundError: No module named 'app.schemas.item'

#

i am getting this error while i have no such schemas in my schemas.py file

#

named as Item or ItemCreate and the rest

#

this is an fastApi issue

glass sandal Apr 28, 2020, 6:10 PM

#

Guys can someone explain me why do we use api ?

#

I mean like ok I've sent JSON data to server and got a JSON response . So why is this thing so used?

#

And can you give me real life examples

outer apex Apr 28, 2020, 6:16 PM

#

@onyx crane There's some docs which may be relevant to your question I think (https://docs.djangoproject.com/en/3.0/ref/models/instances/#django.db.models.Model)

Model instance reference | Django documentation | Django

onyx crane Apr 28, 2020, 6:17 PM

#

Oh damn ! thx!

outer apex Apr 28, 2020, 6:18 PM

#

Unfortunately I am not sure about the internals. For that you might have to look at how Django handles all of this and what it uses __init__ for. Or wait for someone who knows better to respond! 😛

onyx crane Apr 28, 2020, 6:18 PM

#

this works great if youre not planning to use the admin panel :D

outer apex Apr 28, 2020, 6:19 PM

#

@supple loom do you have something called item defined somewhere - a file, function?

#

@glass sandal Social media API is one good example. Let's say I asked you in how many of Guido's tweets does he mention the word Python.

You could literally scour his Twitter page and count
You could build a scraper that looks at the page and count
You can hit the Twitter API, collect all tweets, and count

#

API solves this one way of interfacing with data - where you want to this data over a period of time.

#

API can also help centralise data from distributed sources. Let's say COVID-19 data in the US. If you were interested in data from different states and there isn't one built on the Federal level, you could have an API interface that allows you to query state-level data, while in the backend of that API queries individual states.

zealous siren Apr 28, 2020, 6:45 PM

#

Rader, containerize it and find out

supple loom Apr 28, 2020, 6:55 PM

#

@outer apex no i don't ...i had (but i changed) in my schemas file before but not all of the above mentioned....so i don't think it's related.
paste.pythondiscord.com/kawezinoye.py
this is my schemas file

#

File "./app/schemas/init.py", line 1, in <module>

check this line ..i have no init file either

outer apex Apr 28, 2020, 7:00 PM

#

what's your directory structure?

supple loom Apr 28, 2020, 7:03 PM

#

C:\Users\prashant\Desktop\india_scanner\app\IS\backend\app

#

this is where the main file lies

#

C:\Users\prashant\Desktop\india_scanner\app\IS\backend\app\app
and this is where schemas and other files lies

outer apex Apr 28, 2020, 7:48 PM

#

@supple loom perhaps this SO response might be helpful
https://stackoverflow.com/a/45556023

Stack Overflow

Relative imports - ModuleNotFoundError: No module named x

This is the first time I've really sat down and tried python 3, and seem to be failing miserably. I have the following two files:
test.py
config.py
config.py has a few functions defined in it as ...

glass sandal Apr 28, 2020, 8:01 PM

#

https://discordapp.com/channels/267624335836053506/366673702533988363/704759938068643901
omg thx for your explanation

pseudo nacelle Apr 28, 2020, 9:30 PM

#

this is not necessarily python. But I was wondering if there is a way to see if a user copied (Ctrl C) a line from a website

#

I don't want to force them to copy to clipboard

#

but at least see what % of users are copying said code

#

is this possible at all?

cold anchor Apr 28, 2020, 9:35 PM

#

Looks like this SO answer gets into how to detect ctrl+c https://stackoverflow.com/questions/10827256/how-to-detect-copy-and-paste-in-javascript

Stack Overflow

how to detect copy and paste in javascript?

i have two field one is emailid and another is password in my form. i want to detect that when user reenter the email and password than he should not able to copy the above. he have to write again

#

You might want to use that to detect it and then when it happens, save that a user copied some text

pseudo nacelle Apr 28, 2020, 9:39 PM

#

the question is the same as mine. but the answer is how to disable that functionality

#

I wonder if it is just not possible

cold anchor Apr 28, 2020, 9:42 PM

#

ok so use that answer for the "detect if they did ctrl+c" and use this answer for "what does the user currently have highlighted" https://stackoverflow.com/questions/4712310/javascript-how-to-detect-if-a-word-is-highlighted

Stack Overflow

Javascript: How to detect if a word is highlighted

I'm writing a Firefox addon that is triggered whenever a word is highlighted. However I need a script that detects when a word is highlighted, and I'm stuck. An example would be nytimes.com (when y...

pseudo nacelle Apr 28, 2020, 10:29 PM

#

ahh. thanks @cold anchor

native tide Apr 28, 2020, 11:32 PM

#

In what folder would you guys put a django install in server side? Some people said to make a new directory called /srv

native tide Apr 29, 2020, 5:17 AM

#

I wrote a extremely simple rest framework that only supports json format! You can check it and give me ur thoughts https://gitlab.com/PanTrakX/rstx

GitLab

Panos Trakadas / RSTX

RSTX (pronounced rest-x) is a simple flexible web rest framework for fast prototyping and debugging written in Python! It currently supports only JSON format! NOT READY FOR PRODUCTION

native tide Apr 29, 2020, 6:28 AM

#

Hello, I was wondering if theres a way to have a variable for a <img> tag, instead of an absolute url, without using js

empty pivot Apr 29, 2020, 6:34 AM

#

@native tide can you explain further what you want to do?

native tide Apr 29, 2020, 6:36 AM

#

I'm creating a leaderboard on my webpage that auto updates user rankings, & I need the <img> section of a table to update to whoevers in 1st place in the DB..

#

Hence why I need a way to change the <img src=> link

empty pivot Apr 29, 2020, 6:40 AM

#

Oh okay you want to programmatically change the URL value of src in an <img/> tag

native tide Apr 29, 2020, 6:40 AM

#

Mhm

empty pivot Apr 29, 2020, 6:40 AM

#

Are you using Django or flask to serve this HTML?

native tide Apr 29, 2020, 6:40 AM

#

Django

empty pivot Apr 29, 2020, 6:41 AM

#

So in your template can you set the value of the src attribute to be variable you pass into the template when you render it?

native tide Apr 29, 2020, 6:42 AM

#

I was trying to use jinja syntax to input a link from a SQLite DB in the img field

#

<img src={{user.Discord_Avatar_URL}}> which obviously won't work because it just wants a string URL

empty pivot Apr 29, 2020, 6:53 AM

#

https://stackoverflow.com/questions/33355159/how-can-i-dynamically-render-images-from-my-images-folder-using-jinja-and-flask

Stack Overflow

How can I dynamically render images from my images folder using Jin...

I am using Flask to learn Python and to create a toy application that I've wanted to make for awhile. I'm having problems with a particular feature which is the standard file uploading. What I want...

gaunt knot Apr 29, 2020, 8:17 AM

#

I need help

#

Somebody please help me

empty pivot Apr 29, 2020, 8:20 AM

#

Just tell what's up

solar hatch Apr 29, 2020, 9:59 AM

#

Node js projects

#

???

#

Beginner

teal sleet Apr 29, 2020, 10:50 AM

#

Hi I am a newbie in python and web development I encountered a problem and its been couple of hours now 😕 . Hope someone can help or lead me to the answer 🙂 thanks in advance! Here's the error I get. screenshot

Virtualenv name: blog
forms.py
flaskblog.py

flask.cli.NoAppException: While importing "flaskblog", an ImportError was raised:

Traceback (most recent call last):
File "c:\users\avalgp\documents\flask_blog\blog\lib\site-packages\flask\cli.py", line 240, in locate_app
import(module_name)
File "C:\Users\avalgp\Documents\flask_blog\flaskblog.py", line 2, in <module>
from forms import RegistrationForm, LoginForm
File "C:\Users\avalgp\Documents\flask_blog\forms.py", line 3, in <module>
from wtforms.validators import DataRequired, Lenght, Email, EqualTo
ImportError: cannot import name 'Lenght' from 'wtforms.validators' (c:\users\avalgp\documents\flask_blog\blog\lib\site-packages\wtforms\validators.py)

📎 unknown.png

#

I tried to reinstall flask-wtf and see if that helps but this is what I get. I tried to google it but when I started reading through their answers I get lost more. 🥴

📎 unknown.png

teal sleet Apr 29, 2020, 11:37 AM

#

All good I somehow managed to make it work 😄

shy holly Apr 29, 2020, 3:43 PM

#

how do you get the info of a selected record in the admin panel of django?
https://ibb.co/QjPhbXq

ImgBB

example

Image example hosted in ImgBB

onyx crane Apr 29, 2020, 3:51 PM

#

im not sure what youre asking

#

what is the "info"

#

and where do you want to get it to ?

shy holly Apr 29, 2020, 3:57 PM

#

like I want to get the selected users id , name , email ..etc

#

and where do you want to get it to ?
@onyx crane I'm trying to make a function that uses these "info" in something when a button is clicked

#

perhaps an action

onyx crane Apr 29, 2020, 4:00 PM

#

Youre trying to access the stuff from code => youre not accessing it through the admin panel ...

#

If you click on the Blue Links in the Admin Panel you can see all the columns ... if thats what you mean.

shy holly Apr 29, 2020, 4:02 PM

#

Youre trying to access the stuff from code => youre not accessing it through the admin panel ...
@onyx crane right

#

I've a button when this button is clicked I want to get the selected users

onyx crane Apr 29, 2020, 4:04 PM

#

Where do you have this button ?

#

Can you explain me what youre trying to do ?
I think youre missing something major here

shy holly Apr 29, 2020, 4:04 PM

#

in this template "change_list.html"

onyx crane Apr 29, 2020, 4:05 PM

#

Ok. The Admin panel, and the selections you do in it, have nothing to do with what youre trying to do.

#

You want to display all instances of a specific Model in a template ?

shy holly Apr 29, 2020, 4:08 PM

#

nope I want to get the instances of a specific model bec I need the user id to use it in Google API

onyx crane Apr 29, 2020, 4:09 PM

#

You just said no and then repeated what i asked ...

shy holly Apr 29, 2020, 4:09 PM

#

duckyhunt sorry

onyx crane Apr 29, 2020, 4:10 PM

#

Views.py

from .models import Yourmodel

def testview(request):
    return render(request = request,
                template_name='appname/yourtemplate.html',
                context = {"yourmodel": Yourmodel.objects.all})

shy holly Apr 29, 2020, 4:11 PM

#

and how do I filter by the selected ones ?

onyx crane Apr 29, 2020, 4:11 PM

#

Urls.py:

urlpatterns = [
    path("", views.testview, name="testview"),

#

one after another

supple loom Apr 29, 2020, 4:12 PM

#

@outer apex i was getting that error coz i had a folder in the same directory with the same name as schemas

onyx crane Apr 29, 2020, 4:14 PM

#

yourtemplate.html

<body>
{% block content %}
  {% for modelinstance in yourmodel%} 
    <p>{{modelinstance.columnname}} </p>
  {% endfor %}
{% endblock %}
</body>

#

see if you get that too work

#

and display your model instances (users?)

finite lava Apr 29, 2020, 4:18 PM

#

Anyone know how i can use Flask/Django to extract the HAR file of people visiting my website?

shy holly Apr 29, 2020, 4:48 PM

#

@onyx crane

class ClassesAdminENG(DjangoObjectActions,admin.ModelAdmin):
    def testview(request):
        all_personalInfo = StudentsEng.objects.all()
        return render(request=request,
                      template_name='admin:students_studentseng_changelist',
                      context={"infos": all_personalInfo})```
inside changelist.html:

{% for modelinstance in infos %}
<p>{{modelinstance.name}} </p>
{% endfor %}```

#

unfortunately it didn't display anything

#

that worked :

        response = super(ClassesAdminENG, self).changelist_view(request, extra_context)
        all_personalInfo = StudentsEng.objects.all()
        extra_context = {
             "infos": all_personalInfo,
        }
        response.context_data.update(extra_context)

        return response ```

#

now let's go back to the main question

harsh flare Apr 29, 2020, 6:39 PM

#

Whats the best way in Flask to call a template and pull in a python variable from a list in the app to populate the webpage? For example, I have a list of lists with each list containing details I'd like to populate a webpage with. How do I efficiently call and populate the template for each list? Bonus points for how I do this as a hyperlink on a homepage

versed sigil Apr 29, 2020, 7:18 PM

#

have a route.
route has data from (form?, db?, config file? variable?)
route does its job and calls the template passing in the req'd variable

#

route needs to accept GET and POST
GET then nothing has been submitted so just display the default behavior
POST then a link has been clicked that has ? in the URL so you can now have your route process the POST action

feral minnow Apr 29, 2020, 7:41 PM

#


.lds-roller {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 80px;
}
.lds-roller div {
  animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  transform-origin: 40px 40px;
}
.lds-roller div:after {
  content: "";

  display: block;
  text-align: center;
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: black;
  margin: -4px 0 0 -4px;
}
.lds-roller div:nth-child(1) {
  animation-delay: -0.036s;
}
.lds-roller div:nth-child(1):after {
  top: 63px;
  left: 63px;
}
.lds-roller div:nth-child(2) {
  animation-delay: -0.072s;
}
.lds-roller div:nth-child(2):after {
  top: 68px;
  left: 56px;
}
.lds-roller div:nth-child(3) {
  animation-delay: -0.108s;
}
.lds-roller div:nth-child(3):after {
  top: 71px;
  left: 48px;
}
.lds-roller div:nth-child(4) {
  animation-delay: -0.144s;
}
.lds-roller div:nth-child(4):after {
  top: 72px;
  left: 40px;
}
.lds-roller div:nth-child(5) {
  animation-delay: -0.18s;
}
.lds-roller div:nth-child(5):after {
  top: 71px;
  left: 32px;
}
.lds-roller div:nth-child(6) {
  animation-delay: -0.216s;
}
.lds-roller div:nth-child(6):after {
  top: 68px;
  left: 24px;
}
.lds-roller div:nth-child(7) {
  animation-delay: -0.252s;
}
.lds-roller div:nth-child(7):after {
  top: 63px;
  left: 17px;
}
.lds-roller div:nth-child(8) {
  animation-delay: -0.288s;
}
.lds-roller div:nth-child(8):after {
  top: 56px;
  left: 12px;
}
@keyframes lds-roller {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
``` whats up guys, This is a 3 dot css animation I did'nt create it I just get it from another site ..., how I can put it in the middle of the page?

#

I tried text align but its not working

shy holly Apr 29, 2020, 7:50 PM

#

  position: fixed;
  top: 50%;
  left: 50%;
  /* bring your own prefixes */
  transform: translate(-50%, -50%);
}```

feral minnow Apr 29, 2020, 7:55 PM

#

Thanks but what prefixes are I don't know much about css?

harsh flare Apr 29, 2020, 9:42 PM

#

@versed sigil thanks, this helps! Is there good tutorial to follow to make sure I do this correctly?

idle bloom Apr 29, 2020, 11:41 PM

#

I feel so stupid and cannot find a answer for this, I am making a postage tracker, I am making a get request to this url https://www.fastway.com.au/tracking-api/?callback&LabelNo=<LABLEGOESHERE>&dataFormat=json
I can parse the tracking numbers perfect but not to were I want it to go.

#

if I can just get an explanation do not have to be told exactly I have tried, a few diff ways and cannot seem to get it to work.

wild thunder Apr 30, 2020, 12:02 AM

#

hey guys, i'm using flask-login and i'm struggling a little, i am getting this message when i try to login.

my dashboard has an @login_required below the route

📎 unknown.png

#

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        username = request.form['username']
        password = request.form['password']

        user = User.query.filter_by(username=username).first()

        if not user or not user.check_password(password):
            flash("not successful.")
            return redirect('/login')
        else:
            user.is_authenticated = True
            login_user(user, remember=True)
            return redirect('/dashboard')

    else:
        return render_template('login.html')

#

this is the login code

#

i tried some alterations but had no success

ancient basalt Apr 30, 2020, 1:15 AM

#

anyone here familiar with Django? I am trying to make model form but not sure if i need to incorporate a formset using two different classes of models

distant ferry Apr 30, 2020, 2:56 AM

#

is there anyone interested in joining a personal private github project? We are 3 developers, 2 moviemakers and one CEO. We're building a live streaming progressive web app and we're aiming to become a startup in the future.
any developers interested and looking for experience would be really appreciated. It's Laravel, Vue and Livepperjs

inland fossil Apr 30, 2020, 4:57 AM

#

so ive got an issue here,

@app.route('/api/servers', methods=["GET", "POST"])
def setstatus():
    if request.method == "GET":
        print(serverList)
        return jsonify({
            "servers": serverList
        })
    elif request.method == "POST":
        servername = request.headers['servername']
        serverip = request.headers['ip']
        servermap = request.headers['map']
        serverport = request.headers['port']
        serverid = id_generator()

        server = {
            "ip": serverip,
            "port": serverport,
            "name": servername,
            "map": servermap,
            "id": serverid
        }

        serverList.append(server)

        print(serverList)

        return jsonify({
            "res": "OK",
            "server": server
        })

I can only see the changed serverList array in the elif and nowhere else. serverList is like so: serverList = [] at the top of the file. In the GET request, it only returns { "servers": [] } and I don't know what to do. Thanks!

wooden flume Apr 30, 2020, 5:28 AM

#

@inland fossil you need to save it somewhere if you wanna access it later

inland fossil Apr 30, 2020, 5:29 AM

#

i have

#

but i found the issue, for some weird reason, it cant read the serverList that I have defined earlier up at the top.

wooden flume Apr 30, 2020, 5:30 AM

#

well, i can't see where you defined it

inland fossil Apr 30, 2020, 5:32 AM

#

from flask import Flask, render_template, jsonify, request
import socket
import time
import atexit
import random
import string
import requests

from apscheduler.schedulers.background import BackgroundScheduler



app = Flask(__name__)

def isOpen(ip, port):
   s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
   try:
      before = int(round(time.time() * 1000))
      s.connect((ip, int(port)))
      after = int(round(time.time() * 1000))
      s.shutdown(2)
      return True
   except:
      return False

serverList = []

def getPing(ip, port):
   s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
   try:
      before = int(round(time.time() * 1000))
      s.connect((ip, int(port)))
      after = int(round(time.time() * 1000))
      s.shutdown(2)
      return after-before
   except AssertionError as error:
      return error

...

def check_all_servers():
    statusCheck()
    for server in serverList:
        if isOpen(server["ip"], server['port']):
            return True
        else:
            serverList.remove(server)
            return False

def id_generator(size=12, chars=string.ascii_uppercase + string.digits):
        return ''.join(random.choice(chars) for _ in range(size))

check_all_servers()
scheduler = BackgroundScheduler()
scheduler.add_job(func=check_all_servers, trigger="interval", seconds=3)
scheduler.start()

# Shut down the scheduler when exiting the app
atexit.register(lambda: scheduler.shutdown())

#

right in the middle

short escarp Apr 30, 2020, 12:34 PM

#

As I undestand it, HTML, CSS and Javascript are often used together. I think I need HTML to view code in CSS or Javascript, but should I learn either Javascript or CSS first and then the other, or is it reasonable to try and learn both at the same time? I already know some Java, so I'm guessing Javascript is the better one to start with if I'm doing one at the time.

versed sigil Apr 30, 2020, 1:21 PM

#

@short escarp youre going to need to understand HTML DOM and CSS sectors are a minimum to get started with javascript.

#

well I mean you can get started with javascript w/o knowing those to learn the syntax, but the real power of JS is when you start manipulating the DOM

onyx crane Apr 30, 2020, 1:37 PM

#

@short escarp lets say html lets you add your text, videos, links, images. Css lets you style that stuff. (color in text, add margins left right and center and position your stuff.) Javascript then on top lets you put logic for your website or any kind of functionality. You press a button and something is supposed to happen. Javascript. You want to transform something. Javascript. And basically everything else.

#

Django:

When i use the .save method of my ModelForm, i think the .save method of my reference Model gets called.
I already overwrote the save Method of my Model which worked perfectly. Now i want to make the ModelForm call a "first_create" method that is an extended version of my overwritten .save method of my Model. This does not work though.

round ferry Apr 30, 2020, 2:06 PM

#

Hi, how can I create checkbox which works dynamic in Django. Like when I click that check box it should strike some text.

thorny rover Apr 30, 2020, 2:11 PM

#

are there any good tools that will help me make a front end of the website (HTML, CSS, JavaScript) and then let me tie in my python code for the back end and database) I saw Bootstrap Studio and it seems nice, im willing to buy something

versed sigil Apr 30, 2020, 2:27 PM

#

there are many many good free templates available. You find one you fancy, download it and then change it to suit your needs. Flask is easy enough to use with its Jinja templating engine to connect python to your front end

#

@round ferry you need to use client side javascript for that

thorny rover Apr 30, 2020, 2:28 PM

#

im looking for a program really that is drag and drop that then gives the source HTML code

versed sigil Apr 30, 2020, 2:28 PM

#

then youre out of luck as far as i know.

#

get the free template
edit to work with flask

#

what it sounds like youre really needing is a simple site that something like squarespace provides

#

you should look at that @thorny rover

thorny rover Apr 30, 2020, 2:35 PM

#

does square space integrate well with stuff like flask?

fossil thicket Apr 30, 2020, 2:45 PM

#

I have a HTML report which autogenerates every time I change the analysis, which I have open in a browser window.

However, the browser window doesn't automatically update when the file on disk is updated, is there a straightforward approach to make this happen?

#

all of the work is local

elfin lance Apr 30, 2020, 2:46 PM

#

you could use websockets to tell the page to reload

fossil thicket Apr 30, 2020, 2:47 PM

#

@elfin lance what do i need to google?

elfin lance Apr 30, 2020, 2:48 PM

#

it depends... As I only sent an abstract solution

fossil thicket Apr 30, 2020, 2:48 PM

#

the workflow is - working in a python notebook, on save html report is generated, report is open in browser, i have to refresh browser to see changes

#

@elfin lance there's some context

elfin lance Apr 30, 2020, 2:48 PM

#

does it have a server or do you just open the html?

fossil thicket Apr 30, 2020, 2:48 PM

#

it is all local

#

so, yes, i just open the html generated into chrome

elfin lance Apr 30, 2020, 2:49 PM

#

I don't think there is a way to check for changes and reload totally on the client side

fossil thicket Apr 30, 2020, 2:49 PM

#

that's a shame

elfin lance Apr 30, 2020, 2:49 PM

#

as webpages can't access to your hdd on demand

#

even if it is on your hdd already

fossil thicket Apr 30, 2020, 2:50 PM

#

fair, i figured it might be something that people did when working on web stuff

#

locally at least

fickle fox Apr 30, 2020, 2:52 PM

#

Is it possible to make role system with flask, and display some things only to people with certain role?

tender crater Apr 30, 2020, 2:55 PM

#

@fickle fox flask-security (https://pythonhosted.org/Flask-Security/) provides role-based protection to views if that's what you mean

fickle fox Apr 30, 2020, 2:57 PM

#

Flask role menagment

#

Display certain content only to people with certain roles

round ferry Apr 30, 2020, 3:05 PM

#

@versed sigil Oh!

fickle fox Apr 30, 2020, 3:18 PM

#

I think thats it, thanks @tender crater

lofty matrix Apr 30, 2020, 3:46 PM

#

Are there any good tutorials/books that focus on application design and infrastructure considerations for scaling to huge numbers of users?

cold anchor Apr 30, 2020, 4:30 PM

#

Production Ready Microservices by Susan Fowler http://shop.oreilly.com/product/0636920053675.do - the concepts apply to non-microservices as well

Release It! by Michael Nygard https://pragprog.com/book/mnee2/release-it-second-edition - dives into all sort of crazy problems and patterns/anti-patterns of production software services

Production-Ready Microservices

One of the biggest challenges for organizations that have adopted microservice architecture is the lack of architectural, operational, and organizational standardization. After splitting a monolith...

Release It! Second Edition: Design and Deploy Production-Ready S...

native tide Apr 30, 2020, 4:32 PM

#

https://yes-www.org/why-use-www/ vs https://www.dropwww.org

Why use www?

tired root Apr 30, 2020, 4:32 PM

#

@lofty matrix If you have a lot of users, you need to load-balance

native tide Apr 30, 2020, 4:32 PM

#

gang war

tired root Apr 30, 2020, 4:32 PM

#

For a web site, this can be done with multiple methods

#

A good setup for scalability: One DB Server, one app server, one load balancer. The load balancer acts as reverse proxy. Something like haProxy.

native tide Apr 30, 2020, 4:33 PM

#

I can't figure out how to go about this in a CSS file. I can only get it to work using inline style attribute on HTML elements.
background-image: url( {{url_for('static', filename='/img/image.png') }} );
Just doing the path normally doesn't seem to want to locate the static files.

tired root Apr 30, 2020, 4:33 PM

#

You can multiply this setup as often as you want, at a certain point, put another load balancer in front of the whole shebang

lofty matrix Apr 30, 2020, 4:34 PM

#

Thanks, for the info. Currently using a load balancer. I have some weird use cases that I was hoping to find patterns for

#

I'll bookmark those books rdbaker. Thanks 🙂

tired root Apr 30, 2020, 4:35 PM

#

@native tide This needs to be relative to the css file

#

@native tide https://stackoverflow.com/questions/5815452/how-to-use-relative-absolute-paths-in-css-urls

Stack Overflow

How to use relative/absolute paths in css URLs?

I have a production and development server.
The problem is the directory structure.

Development:
http://dev.com/subdir/images/image.jpg
http://dev.com/subdir/resources/css/style.css
Production:...

native tide Apr 30, 2020, 4:35 PM

#

thanks. Maybe its not an option then, because I use it at so many depths in the tree. Lemme read

Virtualenv name: blog forms.py flaskblog.py

Virtualenv name: blog
forms.py
flaskblog.py