web-development

[swift wren]

i can post information through postman

[inland oak]

99% chance it is CORS then

[native tide]

How to change javascript quiz

[inland oak]

Postman is ignoring cors problems, unless you check some settings perhaps there

[native tide]

But nothing change

[swift wren]

cors is enabled

im pretty sure cors being enabled is the *

[inland oak]

show the logs in Network tab

for the axios request

[swift wren]

hang on how do i show the logs

[native tide]

idk javascript only copy and paste

[swift wren]

i can see the table and it shows that the request failed

[inland oak]

a week ago I was sure I had enabled them too.
but it was still CORS problem 😉

[native tide]

How to change quiz plz help

[native tide]

help

[inland oak]

I still remember what it showed it Network tab too

[inland oak]

CORS.

I had exactly the same log

[inland oak]

if you will change Axios request to GET type, you will find that it is working btw

that happened only in POST requests funnily

[swift wren]

i mean, thats fine and all

but why wont cors be enabled then

because obviously its attatched and initalised

and everytime the app is reloaded that loop runs for the with app.app_context()

also this obviously states to enable cors

@auth.route('/login', methods=['POST', 'GET'])
def login_route():
    print('hello world')
    username = request.json.get("username", None)
    password = request.json.get("password", None)
    print(f'username:{username} password:{password}')
    data = jsonify(request.json)
    data.headers.add('Access-Control-Allow-Origin', '*')
    return f"<h1>{request.get_json()}</h1>"

[native tide]

#web-development message

[swift wren]

bro for christ sakes learn some js would ya

[inland oak]

Funny. Google is not available

all other web sites are available

I can't google. what a nightmare

[swift wren]

i disabled the ssl and its telling me its a cors issue

aannnnddd its sending a request

[native tide]

how to change questions

[swift wren]

not entirely working

its telling me the request type is options

i remember having ot do that

[inland oak]

https://flask-cors.readthedocs.io/en/latest/
try some minimalistic example out of examples in docs

build flask app out of just 10 code lines as example with CORS allowed

and try it on it

[inland oak]

you did not enable somewhere whiltelist that allows only GET POST?

cors requires OPTIONS enabled in order to make preflight request

[swift wren]

i kinda did

i didnt have them specified and i recently specified

ill remove those constraints

wait

how come its telling me 404 when the flask server is picking up the requests

[inland oak]

¯_(ツ)_/¯

[swift wren]

i hate js bro with the passion

if only browsers ran python

fucking lifes problems would have eased

[inland oak]

https://brython.info/

[swift wren]

aint no fukcing wayu

im gonna die

my whole life's been a lie

[dusk portal]

[drifting radish]

why 91 line no working?

https://paste.pythondiscord.com/ejizobiris.py py

html

https://paste.pythondiscord.com/ozusotokeb.xml

this

if form.validate_on_submit():

in sing-up

[stable yew]

i need some help in django

[mystic wyvern]

what is the the problem ?

[stable yew]

right so heres the thing,
when you call a html page , the function is called, then what happends
is the html page generated then the proccess occurs. but for the proccess to occur there needs to be an interface(aka html page)

then why render html page at the end?

like here

lets say the proccess is storing details to a DB

when that happens why render after the operation over, am i misisng something?

@mystic wyvern

[mystic wyvern]

you mean why we didn't put render in the top of the func ?

[stable yew]

yeah we need to render the page first

or is the function having GET and POST capabilities

and can i make seperate functions for generating the pages?

then carry out the functions

[mystic wyvern]

for this point yes the func can have get or post or maybe put(update)

[mystic wyvern]

i dont think you need this

[stable yew]

but is it possible

like this

or something

[mystic wyvern]

i didn't understand 100% but i think no

[stable yew]

would you mind helping me out on vc if possible

[mystic wyvern]

mmmm.. actually i can't right sorry

[stable yew]

np

[mystic wyvern]

but last one thing

that why we use render in the bottom ,imagine that we put render at top what is gonna happen?

[stable yew]

return earlier

so essentially whats happening here is a get request is sent first to the function renders the page then details are entered, then post request is sent right?

[serene prawn]

@stable yew You should really look into forms
https://docs.djangoproject.com/en/4.0/topics/forms/

[stable yew]

ok cool

[stable yew]

is this correct?

[stable bear]

Hi. I am interested in learning about web development with django. Currently I am using the PyCharm Community edition IDE. For the front-end, I have read that HTML, CSS and Javascript will also be needed. However, PyCharm does not have support for CSS and Javascript, so is there any way to find a work-around for this problem?

[drifting radish]

Why submit no working

[simple garden]

how can i reduce in its height

and make the text align cause contact is a bit down for some reason

[stable yew]

just use VSCODE

its lighter and has alot of programming languages that it can support

[stable bear]

do i need to install an extension?

[stable yew]

You need to download python, pip install django

[mystic wyvern]

i believe you can write box-sizing: border-box to reduce the height

[tawdry rose]

'Response' object has no attribute 'get'
I am getting this error while trying to post data from front end to database using the User.object.create_user method in django kindly help me

[unique epoch]

is there a channel were i can ask about web scraping ?

specifically with selenium

[next mulch]

Hi I am using redis-py for a project
Can someone help me with it?

[daring isle]

Do you guys use viewsets or modelviewset?

[vast rune]

can anyone answer a question about django queue and threading?

[thorn igloo]

just ask your question mate

[vast rune]

well i have a consistent thread that is reading Serial data . Then i have consumer threads that open and need to access the data that serial thread queues. But since Django runs the functions from URL there is no easy way to pass the queue object between the threads

I use memcached.. I guess i could pass them that way. or use global queue

[golden bone]

This one is probably as good as any

[mystic wyvern]

can you post the whole code please

[warped aurora]

How would I grab the one of the row values after clicking the edit button and use it to query the database?

[serene prawn]

Probably have button leading to another page that allows to edit specific entry given it's id 🙂

[daring isle]

in your urls you have a path which passes in int:id, your edit button should href="" to the url, the url will be connected to a fnction in your views which handles the query

path('see_event/<int:id>', views.see_event, name='see-event'),

[tawdry rose]

from django.contrib.auth.models import User
from django.shortcuts import render

Create your views here.

from werkzeug.utils import redirect

def signup(request):
if request.method == 'POST':
Username = request.POST['Username']
Firstname = request.POST['Firstname']
Lastname = request.POST['Lastname']
Email = request.POST['Email']
Password = request.POST['Password']
x = User.objects.create_user(username=Username, first_name=Firstname, last_name= Lastname, email= Email, password= Password)
x.save()
print('user created')
return redirect('/')
else:
return render(request, 'signup.html')

My code has multiple files since its a django based project above is the views.py files code

[warped aurora]

actually wanted to do it in a popup modal

[daring isle]

then your views should pass in the id

def see_event(request, id):
   
    obj = Eventregister.objects.get(id=id)
    wcid = obj.wc_id

and you'd return a new template

if you want it in a modal....

you'll likely need js

actually

you can prob just pass the query in your view for the orginal page

[mystic wyvern]

In which line did the error occurs ?

[daring isle]

nah idk acc lol

[tawdry rose]

after running my website and filling the form i am getting the error response object has no attribute get

[warped aurora]

Ok I'll try it this way first,

[vast rune]

look at network chrome degbug tab and make sure resp is coming in

correctly

[mystic wyvern]

if you can let me see the error

[tawdry rose]

see on the left screen

[vast rune]

make sure get is an option in views for that call

@api_view(['GET'])
def deviceSeq(request, pk):

[tawdry rose]

are you talking to me?

[vast rune]

yep

[tawdry rose]

where shoul i add it ?

[vast rune]

in view.py. the view that is called must have that method

you should always have something like this above the def or classes in your view @api_view(['GET', 'PUT', 'DELETE'])

[daring isle]

this is one of the reasons im moving to react, i dont like this method of doing things.

[vast rune]

im on react

much easier

[mystic wyvern]

@tawdry rose did it work ?

[tawdry rose]

i dont know what he is saying

[mystic wyvern]

just put this above your func @api_view(['GET'])

[tawdry rose]

ok ill try

[vast rune]

api is the name of MY app in django

i don't know your app name

prob the name of the folder your views.py is in

[mystic wyvern]

the api_view is a decorator that usually used in drf(Django Rest FrameWork )

[warped aurora]

Yea been thinking I should start learning that as well

[tawdry rose]

it is showing this error now

[mystic wyvern]

yeh i knew

mmmm...

[tawdry rose]

then ?

[mystic wyvern]

last more thing

post your html file

the signup file

[silver nexus]

!code

[lavish prism]

Here's how to format Python code on Discord:

```py
print('Hello world!')
```

These are backticks, not quotes. Check this out if you can't find the backtick key.

[vast rune]

i have a consistent thread that is reading Serial data . Then i have consumer threads that open and need to access the data that serial thread queues. But since Django runs the functions from URL there is no easy way to pass the queue object between the threads
I use memcached.. I guess i could pass them that way. or use global queue

? (serial device streaming data to cpu via pyserial)

 stop_thread=False
q=queue.Queue(maxsize=100)
connectSerial()
t2= threading.Thread(target=consumer,args=(q),daemon=True).start()
time.sleep(5)
stop_thread=True

def connectSerial():
    ser = serial.Serial()
    ser.baudrate = 1000000
    ser.timeout=1
    ser.port = '/dev/ttyACM2'
    ser.open()
    t1 = threading.Thread(target = readSerial, args = (ser), daemon = True).start()
    
def readserial(ser):
    global stop_thread,q
    msg = bytearray()
    buf = bytearray() #trimmed at open must add back
    while True:  
        if(stop_thread):
            break
        try:
            while True:
                timelast=time.time()
                i = max(1, min(2048, ser.in_waiting))
                msg = ser.read(i)
                buf.extend(msg)
                a= msg[0:1][0]
                q.put(a)
                break
        except Exception as e:
            stop_thread=True
            ser.close()
            break
    stop_thread=True
    ser.close()


def consumer():
    global stop_thread,q
    while not stop_thread:
        if not q.empty():
            a=q.get()
            b=a*100
            print(b)

[lavish prism]

Hey @tawdry rose!

It looks like you tried to attach file type(s) that we do not allow (.html). We currently allow the following file types: .gif, .jpg, .jpeg, .mov, .mp4, .mpg, .png, .mp3, .wav, .ogg, .webm, .webp, .flac, .m4a, .csv, .json.

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

[mystic wyvern]

just post the form section

[tawdry rose]

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Signup</title>
</head>
<body>
<form action="signup" method="POST">
{% csrf_token %}
Username:<input type="text" name="Username" ><br>
First_name: <input type="text" name="Firstname" ><br>
Last_name: <input type="text" name="Lastname" ><br>
Email: <input type="email" name="Email"><br>
Password: <input type="password" name="Password">
<input type="submit">
</form>
</body>
</html>

[mystic wyvern]

Oh! I didn't see any error

[tawdry rose]

i am getting the error only after runnung my website

[mystic wyvern]

after running or after submit the signup?

[tawdry rose]

after submitting the signup

[mystic wyvern]

ok when you submitting the signup form in which view you redirect it ?

is it to the home view ?

[tawdry rose]

yes

ive sent you the view.py file

[mystic wyvern]

ok when you signup and get the error did the user signup in the database ??

[tawdry rose]

yes

[mystic wyvern]

ok then the problem is in the home view

@tawdry rose show me your home view

[tawdry rose]

html or views.py ?

[mystic wyvern]

views

just the home func

[tawdry rose]

ok

from django.shortcuts import render
from django.http import HttpResponse

Create your views here.

def home(request):
return render(request, 'Home.html',{'title': 'Django' ,'link': 'http://127.0.0.1:8000/', 'link2':'http://www.youtube.com'})
def profile(request):
return render(request, 'Home.html',{'title': 'This is the Profile path'})
def Expression1(request):
a = int(request.POST['text1'])
b = int(request.POST['text2'])
c = a + 2*b
return render(request, 'Output.html',{'Output': c })

[mystic wyvern]

ahhh.

[tawdry rose]

?

[mystic wyvern]

i really got confused

last thing

your home.html

[tawdry rose]

ok

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Template1</title>
</head>
<body bgcolor="yellow">
<h1>Hello {{title}}</h1>
<a href={{link}}>Home</a>
<hr>
<a href={{link2}}>Youtube</a>
<hr>
<a href="app_signup/signup">Signup</a>
<hr>
<form action="Expression" method="POST">
{% csrf_token %}
1st Value:<input type="text" name="text1">
2nd Value:<input type="text" name="text2">
<input type="submit" >
</form>
</body>
</html>

[late trail]

I missed what's wrong with your code? @tawdry rose

[mystic wyvern]

wait a minute what is werkzeug.utils??????

[mystic wyvern]

.

[mystic wyvern]

the redirect should import like that ```from django.shortcuts import render,redirect

[late trail]

if you allow it i think switch to react and use django for backend @tawdry rose

[tawdry rose]

Thanks a lot its working now..

I want to become your coding buddy

[mystic wyvern]

lol

[native tide]

hello, can anyone help me out in Beautiful Soup ?

[lavish prism]

Hey @native tide!

Uh-oh! It looks like your message got zapped by our spam filter. We currently don't allow .txt attachments, so here are some tips to help you travel safely:

• If you attempted to send a message longer than 2000 characters, try shortening your message to fit within the character limit or use a pasting service (see below)

• If you tried to show someone your code, you can use codeblocks
(run !code-blocks in #bot-commands for more information) or use a pasting service like:

https://paste.pythondiscord.com

[distant trout]

does anyone else think expo bundle size is too big?

[daring isle]

defined my css, i know its being imported correctly into the component -
how the hell do i change my navbar color?

return (
    <Box sx={{ pb: 7 }} ref={ref}>
      <CssBaseline  />
      <List>
        {messages.map(({ primary, secondary, person }, index) => (
          <ListItem button key={index + person}>
            <ListItemAvatar>
              <Avatar alt="Profile Picture" src={person} />
            </ListItemAvatar>
            <ListItemText primary={primary} secondary={secondary} />
          </ListItem>
        ))}
      </List>
      <Paper  
      
      sx={{ position: 'fixed', bottom: 0, left: 0, right: 0 }} elevation={3} >
        <BottomNavigation 
          className = 'bottom-nav' 
          showLabels
          value={value}
          onChange={(event, newValue) => {
            setValue(newValue);
          }}
        >
          <BottomNavigationAction label="Recents" icon={<RestoreIcon />} />
          <BottomNavigationAction label="Favorites" icon={<HomeIcon />} />
          <BottomNavigationAction label="Archive" icon={<ArchiveIcon />} />
        </BottomNavigation>
      </Paper>
    </Box>
  );
}

i set className = to my css element (there ws no classname here before)

I can put that anywhere else and it works except the place im trying to affect

[willow shell]

Basic terminology question:
Are there specific terms for endpoints which are intended for a client to access it vs endpoints which are only intended to be used as like an API?

I feel like I am misusing some of these terms a little bit

IE:
I have an API endpoint in Flask, lets call it /api/get_user_data, which just gets the saved data for the current user and returns it as a dictionary.

I would call this an API Endpoint ^

I also have an endpoint, lets call it /login which the client accesses to view the login page and log into the app.

Is there a term for this style of endpoint? ^

[fading plinth]

Can web development benefit from experience in solving dynamic programming problems?

[vernal iron]

Question for anyone using Vault or something similar: I have a Flask application and I want to store the DB creds in Vault and let the app fetch it with hvac client library. But how can the app safely auth to Vault? Storing the Vault token with the app would take me back to the original problem. The only thing I can think of is storing the token with the build process. I am planning on using GitLab CI for deployment and I know there is a feature for setting variables (which I believe makes them available as environmental variables during the pipeline process). Is this similar to how you folks handle fetching secrets for your apps? Are any security issues with this approach that I should be aware of?

[simple garden]

it didnt work ;-;

[daring isle]

Yes

[golden bone]

/login is just a regular endpoint. https://12ft.io/proxy?q=https://stevenpcurtis.medium.com/endpoint-vs-api-ee96a91e88ca

[haughty isle]

Where are you deploying to? And what is Vault?

[vernal iron]

The ultimate goal is to deploy to a Kubernetes cluster but for right now, I am working locally with Docker containers (one for the Flask app, one for the database and one for the Vault server. Vault is a self-hosted product from Hashicorp that allows you to fetch secrets via API. The Flask app has a client library for fetching from Vault's API.

[haughty isle]

Where are you hosting the kubenetes cluster?

[vernal iron]

Directly on AWS EC2 instances

I know they have their own Kubernetes service, but this is a small side (i.e. their should be little load) project and given pricing, I'm trying it on just EC2 for now

[haughty isle]

Ah use AWS Secrets Manager

And configure an iam role on your ec2 machines that you want to access the secrets

[vernal iron]

eh, I'm looking specifically to get experience with Vault 🤷🏾

we have it at my job, so want to play around with it here. Also experience with situations where that kind tight integration between products is not available (i.e. how would I handle this if I want to move the app to some other cloud provider)

[swift wren]

i've used jwt's to start logged in sessions validated from flask backend with real data in the database
i just wanted to know how 2fa works right, like ik about sessionStorage()
but i feel like, if i develop a function that generates a random hexa code, how do i securely store it in the session so that the only person that see the real code is the email recipiant
im also doing the emailing system from the backend

[stable yew]

where am i going wrong here

[golden bone]

It's telling you that login.html doesn't exist, so does it? And if so is it in the correct location?

[reef spruce]

who know flask??

[still root]

Hey I need help with scraping a web page I don't know what it's not working.

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.launch()
    page = browser.new_page()
    page.goto("https://www.ubereats.com/ca")
    print(page.title())
    page.fill("#location-typeahead-home-input", "address")
    page.keyboard.press("Enter")
    print(page.url)
    page.close()

Here is my python code.

I am expecting this page to go past https://www.ubereats.com/ca but for some reason it returns the same exact address

This is the button I want to click or either press enter. It would do the same. However, whatever I try it always seems to be the same result and does not go past this page.

[stable yew]

see

appname/appname/template

[native tide]

do I need anything else than Django, Node.js and Postgresql for a simple portfolio website?

[thorn igloo]

a simple portfolio is just a frontend application no?

[native tide]

well something like that I guess

[thorn igloo]

if there's like a contact me form, any backend works

doesn't have to be complicated

[native tide]

also would like to make simple website for uploading media

just for myself

aka buy VPS and just make my own cloud service

so I can sync stuff

[thorn igloo]

i see

[native tide]

I already did some simple website like that in only Django

I could upload files and then view it on the website

but idk I found it kinda hard to find a lot of good resources on Django

I get the basics of HTML, CSS, JavaScript, Postgresql and decent python

but idk stuff like website layout I was doing in Django and HTML but I see that you can do a lot more with JavaScript

[thorn igloo]

what do you mean you can do a lot more with javascript?

[native tide]

more animations visualizations and I think implementation is easier? also more documentation, sources

I think I m just going to look at some github projects with django

and see what and how people do stuff

[thorn igloo]

alright

[golden bone]

I don't know playwright but have done this in Selenium and I would usually tell it to wait for the URL to change. It's possible that it's printing and closing too fast before the new page loads

[inland oak]

<@&831776746206265384> !rule 5

[lavish prism]

Rules

8. Do not help with ongoing exams. When helping with homework, help people learn how to do the assignment without doing it for them.

[inland oak]

!rule 5 <@&831776746206265384>

[lavish prism]

Rules

5. Do not provide or request help on projects that may break laws, breach terms of services, or are malicious or inappropriate.

[timid tulip]

Hello I'm trying to get started with Python to develop a web app, and would like to know what I need to know and to get started with it?

[golden bone]

You'll want to know the basics of HTML and Python if you don't already. Then I would recommend following a tutorial or two for Flask, as this is a simple but popular Python web framework. Maybe find something specific to the type of web app you want to build

!resources especially if you're starting from zero have a look 👀

[lavish prism]

Resources

The Resources page on our website contains a list of hand-selected learning resources that we regularly recommend to both beginners and experts.

[timid tulip]

Thanks I will check that out.

[native tide]

Just use some react and node

[native tide]

thats what Im going with right now but there is a lot of setting up honestly

also the class based stuff is harder to read than function based stuff

[native tide]

wow

30 minutes just to install react and other stuff, setup file structure and connect react, webpack, babel and some random shit xD

probably not gonna remember what any of those things are / do and how to use them

[thorn igloo]

why not just use create-react-app?

[native tide]

well so I thought if I make it by myself I will understand better what is what

but yeah

honestly whats the advantage of js, react and all of that stuff

at the end of the day cant you make most stuff in just HTML and CSS and Django?

like from what I understand now is Iam using Django as backend simulating all stuff and html template

and then inside a html template I am inputting the react view I guess?

⌨ NPM Setup Commands ⌨ 
npm init -y
npm i webpack webpack-cli --save-dev
npm i @babel/core babel-loader @babel/preset-env @babel/preset-react --save-dev
npm i react react-dom --save-dev
npm install @material-ui/core
npm install @babel/plugin-proposal-class-properties
npm install react-router-dom
npm install @material-ui/icons

like this thing

then setting up file structures, different files, connecting them

idk feels like Im going to go through the whole tutorial

and gonna know some functionality but if something breaks or if I m gonna want to add new stuff I wont know where to add it and how to change stuff

[dense slate]

If there's one thing I've learned, it is that good development skills includes when to find ways to reduce creating things from scratch by using libraries and such. Some people much better than us have created validated ways of setting things up - CRA and CNA are examples of that.

[native tide]

oh yes surely! but at the same time

if I import so many things

then knowing where to do what is hard

for example views.py and models.py

you can put functionality in both Im pretty sure

but I dont know where it should be done mainly

I read somewhere that views.py should be thin and models.py should have most code and be thicker

but its nothing I can be sure of ..

[light ferry]

@native tide i have a probleme bro ca you help me

[native tide]

yeah honestly its too much Im gonna drop it for now

[dense slate]

Yea that's right, but models.py is more for inherent things to a model. Like if you want to return the review count for an item, you could create a method versus a generic view. Views are more for page functionality while methods for object/model based functionality.

[native tide]

I have no idea what Im doing, I know how to write logic and similar, but with the react and all those different things, there is just too much to learn at once

[dense slate]

Yea, chip away. Best you can do.

[native tide]

I just want like simple website that I can upload stuff to

and then watch it

[dense slate]

All you need is Django.

[native tide]

I did it all in just django before

[dense slate]

And a DB - so postgresql is fine.

[native tide]

it just had really ugly styling and no structure

[dense slate]

I mean the DB is only if you're storing data.

[native tide]

yes I was using postgresql

[dense slate]

If you're making a simple CSS/HTML site with cool features and videos - you really only need a front end.

[native tide]

so what is react / node.js actually used for

is it just because there is already a lot of stuff there to use?

[dense slate]

It's the user-facing part of the site, built on mostly javascript.

Django can handle both front and back end, but React is a javascript-powered front-end framework that makes front-end dev easier and more productive.

[native tide]

but you can do most if not everything without javascript right?

[dense slate]

Most functionality yes, but if you want things like animations or changes to the site without refreshing, then you start needing the JS side of things.

Django will just give you CSS/HTML capabilities with templates.

You can do JS stuff within it for sure as well.

Definitely better to start with that then trying to learn React and Django at the same time.

At least that's my suggestion.

[native tide]

yes that seems more reasonable

to first build up the main site and then add maybe animated drop down menus or similar with js later on

[native tide]

I mean yes but you'll get more powerful ui functionality from react

And don't worry about setting things up yourself, just do create react app and get working

[urban ridge]

Hi all,

So I built webapp using django for a startup and I'm ready to deploy it. However, I'm struggling to find the right service to use! especially cost-wise.

General info:

• Django 3.2, Python3.9, Postgres, couple dependencies

• Few visitors to the webapp, barely 100s a month

• Interactive with the database, it has some sort of a chat section, sign in and auth functionality, ...etc

First option I checked is AWS, and I think what's appropriate for this use case is "Amazon Lightsail" for $3 to $10, but when I add the database server the cost shoots up to $80+!

Same happened when I checked other services like Microsoft's azure!

I'm confused about the whole deployment process and it's frustrating to find A LOT of resource explaining code/frameworks and other technologies but almost NONE that explain how to make a use of it or actually deploy it and the cost behind it.

So I'm hoping this post receive deliberate responses and would be helpful for the experienced ones to share their knowledge. And if you happen to use these services or others, if you don't mind, share the prices and the use case.

I'm trying to find the most cost-effective approach for this case and future cases.

Thanks

[golden bone]

The big three are the most expensive. I would look at Heroku for starters. Even their free tier Postgres might be enough with such low traffic

[dense slate]

I love Digital Ocean. $6/month, maybe $10/month if necessary for the extra RAM for FE frameworks, will cover that need.

https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-16-04

You can just increase your cost by small amounts as you scale and need more resources.

[still root]

Web scraping is perfectly legal though?

[inland oak]

5$/month DO ;b

[still root]

All I want to do is add a bunch of items to the shipping cart in Uber eats and get that URL so that I can send it to the user

[inland oak]

it is legal, but illegal to scrap against consent of owners ;b

[still root]

Shopping cart*

[inland oak]

so in reality web scrapping is almost always illegal, except for when it is used in acceptance tests

[inland oak]

have you gained permission of Ubereats for that?

[still root]

Ya but I am not using web scraping data for my own use. I am using it to simply redirect the user to the same page

I just don’t see why I need permission from Uber eats. I mean the person I am working for (he is a client of mine) most likely does

[inland oak]

because you are using not your own property against consent of the owners (it is often forbidden in web site rules)

[still root]

Ok let me read the Uber eats website rules and get back to u

Here is something I found

[inland oak]

https://www.octoparse.com/blog/10-myths-about-web-scraping

Many people have false impressions about web scraping. It is because there are scrapers who don’t respect intellectual property rights and use web scraping to steal content. Web scraping isn’t illegal by itself, yet problems arise when people disregard websites' terms of service and scrape without the site owner’s permission. According to a report, 2% of online revenues can be lost due to the misuse of content through web scraping. Even though web scraping doesn't have a clear law and terms to address its application, it’s encompassed with many legal regulations. For example: 

Don’t copy data that is copyrighted.
 

One person can be prosecuted under several laws. For example, one scraped some confidential information and sold it to a third party disregarding the desist letter sent by the site owner. This person can be prosecuted under the law of Trespass to Chattel, Violation of the Digital Millennium Copyright Act (DMCA), Violation of the Computer Fraud and Abuse Act (CFAA)and Misappropriation.

It doesn’t mean that you can't scrape social media channels like Twitter, Facebook, Instagram, and YouTube. They are friendly to scraping services that follow the provisions of the robots.txt file. For Facebook, you need to get its written permission before conducting the behavior of automated data collection. 

[inland oak]

here what you found.... but fullly

It is perfectly legal if you scrape data from websites for public consumption and use it for analysis. However, it is not legal if you scrape confidential information for profit. For example, scraping private contact information without permission, and sell them to a 3rd party for profit is illegal. Besides, repackaging scraped content as your own without citing the source is not ethical as well. You should follow the idea of no spamming, no plagiarism, or any fraudulent use of data is prohibited according to the law. 

basically care to read before giving partial information out of context

[still root]

Are you talking about yourself giving false information?

(No disrespect intended)

[inland oak]

just ask moderators to clarify that, I don't care about what you think beyond given information about it.

I do not have intention to spend time in pointless arguing

[still root]

It says even in what you sent me that as long as the data being sold isn’t confidential it is legal. If I am making an app that literally redirects the user back to the same website I manipulated in order to get a unique URL. Tell me how that is illegal?

I am not trying to argue I just believe you weren’t given enough context and didn’t understand my post well enough to tell me if it is against the law.

[inland oak]

There is quite funny acronym IANAL = I am not a lawyer. As well as you are. None of us are comptent enough to know if we break the law in this doubtful situation
You should clarify if you are breaking law with lawyer or at least with web site owners.

[still root]

A Google search is enough to tell you about this though. I also read the Uber eats rules and guidelines and I didn’t find anything about them not allowing web scraping

[inland oak]

https://www.uber.com/legal/en/document/?name=general-terms-of-use&country=great-britain&lang=en-gb have you read this fully?

Restrictions.
You may not: (i) remove any copyright, trademark or other proprietary notices from any portion of the Services; (ii) reproduce, modify, prepare derivative works based upon, distribute, license, lease, sell, resell, transfer, publicly display, publicly perform, transmit, stream, broadcast or otherwise exploit the Services except as expressly permitted by Uber; (iii) decompile, reverse engineer or disassemble the Services except as may be permitted by applicable law; (iv) link to, mirror or frame any portion of the Services; (v) cause or launch any programs or scripts for the purpose of scraping, indexing, surveying, or otherwise data mining any portion of the Services or unduly burdening or hindering the operation and/or functionality of any aspect of the Services; or (vi) attempt to gain unauthorized access to or impair any aspect of the Services or its related systems or networks.

Ownership.
The Services and all rights therein are and shall remain Uber’s property or the property of Uber’s licensors. Neither these Terms nor your use of the Services convey or grant to you any rights: (i) in or related to the Services except for the limited license granted above; or (ii) to use or reference in any manner Uber’s company names, logos, product and service names, trademarks or services marks or those of Uber’s licensors.

This is literally link at your uber eats for terms of usage. This is your web site owners rules which you break. Find all the ones that you break if you wish there.

[golden bone]

I didn't see the original question and I don't want to debate what the law is, but unless your question is specifically about how to violate ToS there is probably a way for you to ask the question from a purely technical perspective (for example using a different website where it is definitely permitted)

[inland oak]

Here is the origins

Perhaps <@&831776746206265384> could clarify to @still root that web scrapping services like that https://www.ubereats.com/ca against their consent and making third party software based on this data is not legal

[still root]

Ok I see what you mean. I didn’t see that part. I just don’t really understand why me manipulating the page so that I could get a unique URL from Uber eats and just send my user to it is illegal?

I am not scraping data from it, all of the actual data collection is done through an API which I know for fact is perfectly legal

[inland oak]

why did you use Selenium then

[still root]

It’s funny that u say that bc I didn’t even use selenium

[open forum]

It's not illegal, but any kind of web automation is often violating the terms of service of the site.

It doesn't matter how you automate it, the terms are often phrased in terms of "don't use the site in any other way than manually through a browser"

[inland oak]

Because yes you break their terms of services, and secondly your actions can lead to harming their proffits because of whatever you are doing there against their property and explicit disagreement. That's usually it. Your automating software can just take money out of them by increasing load to servers which were not intended to be used like that

[open forum]

Your particular usage may not be harmful, but the rules imposed on us by Discord is to disallow any discussion or assistance of activities that violate the ToS of any other service.

So, if it's against the ToS, you can't talk about it here.

[still root]

Well I am just trying to determine if I should actually make this for my client or should I probably let them know that it is illegal? I just want to be educated. But I understand what you are saying

Thanks a lot, I appreciate it

[open forum]

Again, it's not illegal.

[inland oak]

Write to help support of the web site and clarify if you have permission or not

[open forum]

Violating terms of service is not illegal, it just means the site is saying "If you do this, we will block access to our service".

[inland oak]

That can be different in different countries technically.

Some countries could be having it literally illegal

[still root]

I still want to respect Uber eats terms though

But thanks for the information

[open forum]

I am not a lawyer in any country, obviously, but I've never heard of that being the case.

[inland oak]

as well as I am not a lawyer. But that's gray area for sure at least and where better be careful and to find all the possible information if dealing with it.

[open forum]

Whether it's a good idea to violate terms in a commercial project depends on the project and the market. As a rule of thumb, it's probably not usually a good idea, though.

[still root]

Ok well thanks for the help, I truly appreciate it

[open forum]

I have worked on a project that did do this, but it was a very special case, because my employer was a significant operator in a market where our service indirectly benefitted the services we were automating, and those services were aware of what we were doing and implicitly approved of it even though what we did technically violated their stated terms.

That's a very special situation, though.

[still root]

This project is generating Uber eats leads, so in a way it is kind of benefiting them?

[near ridge]

It's different in this case. It violates our rules to assist with things like this

Regardless of whether or not it benefits them

It violates their ToS, which means we won't assist

[still root]

Ok ok let's stop talking about this in that case. As if right now I am most likely not going through with this.

[near ridge]

Fair. I mean you raise reasonable questions, I'm not dismissing that.

More just making sure we're on the same page regarding that project and us as a server

Same rules would apply to Dem if he came to us about his work project

Special case or no, we personally can't verify and so we take a blanket stance

[still root]

Yes, of course. I understand.

[golden bone]

Logging in to a service isn't a violation of ToS AFAIK

I won't drag this channel any further off topic but if this servers' policy is that using tools like Selenium without explicit permission is somehow inherently a violation of rule 5, that should be specified because it's not obvious or logical

[native tide]

Y'all should check out this app fissmic if you want to turn a website into a windows app. https://fissmic.github.io

[paper moon]

So I have my backend implemented in flask, and I have made my frontend in HTML. How can I make it so that when a button is clicked in the frontend, some information is shown on the website? Basically how to make the frontend communicate with the backend?

[golden bone]

Your button can reload the page, or load a different one. Look at Jinja templates if you haven't yet. Anything more sophisticated will require htmx or JavaScript

[paper moon]

it should get some data from the db and show it on the page. I have a function for that on the backend

[golden bone]

So yeah that's basic Flask stuff. Your button can load a page based on a Jinja template and insert the data value

@paper moon like this https://stackoverflow.com/questions/28029448/how-to-pass-data-from-database-to-html-using-jinja2-flask-and-mongodb-and-while

[paper moon]

Thanks!

[lavish prism]

:x: According to my records, this user already has a mute infraction. See infraction #57293.

[dense slate]

Ruh roh.

[dark night]

In a flask project, where should I keep my database models? I started using Blueprints, so I have moved my routes into different directories and now I can't use my post request routes without referencing the models somehow. I've been getting circular import errors while trying to figure it out

[golden bone]

models.py in the same folder with all your routes usually http://exploreflask.com/en/latest/organizing.html

Or if you need to have multiple modules, a models.py in each https://www.digitalocean.com/community/tutorials/how-to-structure-large-flask-applications.amp

[warped aurora]

trying to prepopulate a wtform field from a database object like this

    vehicle = Vehicle.query.filter_by(T_Number=T_Number).first()
    form = vehicle_form()
    form.T_Number = vehicle.T_Number
    form.white_plate = vehicle.white_plate

    return render_template("update.html",
                           T_Number=T_Number,
                           form=form
                           )

<form action="" method ="post" class="modal-form" id="edit-form">

    <h3>Edit Vehicle details</h3>
    {{ form.T_Number(class_="edit-input",placeholder="")}}
    {{ form.white_plate(class_="edit-input",placeholder="")}}
    {{ form.submit(class="btn btn-primary btn-md btn-block w-100 mb-2 shadow")}}
  </form> ```

getting this error
{{ form.T_Number(class_="edit-input",placeholder="")}}
TypeError: 'str' object is not callable

[native tide]

would this code be vulnerable to SQL injection? ```php
<?php
require_once($_SERVER["DOCUMENT_ROOT"]."/core/config.php");
require_once($_SERVER["DOCUMENT_ROOT"]."/core/session.php");

$token = $_GET['t'];

$TokenSQL = 'SELECT * FROM users WHERE auth = "'.$token.'";';
$prep = $conn->prepare($TokenSQL);
$prep->execute();

$results = $prep->get_result();

$final = mysqli_fetch_assoc($results);

if ($final > 0) {
echo 'true';
} else {
echo 'false';
}
?>```

i am use prepared statements

[tropic raptor]

how to compare both timezone-aware time() objects?

It isn't possible without date, right? -> due to iimpossibility of localizing time without date, hm?

[dark night]

Thanks for the sources, I had the right idea but I think my issue now is that my db variable from SQLAlchemy requires my app variable, and creates a loop of imports between my modules. I found an example of a project avoiding the issue by using db=SQLAlchemy() without the app variable, but then I run into the issue of not being able to use the model again. Do you happen to know a solution?

[golden bone]

Sounds a little beyond me but I'd be curious to see the code. Maybe grab a help channel and see if someone more advanced can chime in

Just a screenshot of your project structure and import statements might help

[simple garden]

what does :not do?

[native tide]

in python?

unless it's a newish feature that is not python

it might be

[simple garden]

in web dev

[native tide]

not up to date with python

[simple garden]

im asking in web development cause its in css

theres like :hover and there :not

[native tide]

ok, not python, css

[simple garden]

and i dont know what it does

yes

css

[native tide]

not sure

give me a minute

[dense slate]

https://developer.mozilla.org/en-US/docs/Web/CSS/:not

https://css-tricks.com/almanac/selectors/n/not/

[simple garden]

yes i saw it but i didnt understand it

thats why im asking here ;-;

[native tide]

https://www.w3schools.com/cssref/sel_not.asp

it's a negation

run the example above

[dense slate]

Our CSS would select all the <li> elements except the one(s) with a class of .different.

/* Style everything but the .different class */
li:not(.different) {
  font-size: 3em;
}

[simple garden]

ohhhh

got it

[native tide]

noice

[simple garden]

does it apply for words?

[native tide]

no

there's no css selector for words/strings

[simple garden]

got it

unless i use span

[dense slate]

Even with #?

[simple garden]

right?

[native tide]

am with # you select id= I think?

sorry, I'm far behind my css

[dense slate]

Right, oh I was understanding the question incorrectly I think.

[austere relic]

same as with any other computer

[unkempt temple]

How similar is ruby on rails to python with django?

[daring isle]

am i heading in the right direction? currently no idea how to get this shown in react

but ive done the model and serialising right so far right?

this shit is so much more confusing than jinja templating

[stable yew]

print(Details.objects.filter(Username=user,Password=passw))

what dos this command do in django

[daring isle]

i dont think it will do much, it will likely give you an object identifier

make this a variable:

objects = Details.objects.filter(Username=user,Password=passw).all()

then:

      print(object)

or something like that, you'll get a readout

prob better if you define what you want to see if its not working like , print(object.id) or any field you want

this part 'Details.objects.filter(Username=user,Password=passw).all()' is filtering everything in your Details model and returning anything with the password = passw

[inland oak]

This command makes SQL query to your database
it is equvalent to
SELECT details FROM Details_table
WHERE Username=user, Password=passw

it automatically transforms to SQL query(like the one above) and accesses your Sqlite or Postgresql (or Mysql) database
returns result and automatically converts to python objects

[stable yew]

So in that case, then I was supposed to get a true value and return Render a page

But I didnt

(case if password correct)

[inland oak]

This looks silly. It is equvalient to filter and then for some reason to request all objects again. all() will do nothing.

[stable yew]

But I didn't

[inland oak]

debug

check what u have in database

Details.objects.all() will get all existing details objects in db

[inland oak]

The query resulrns List of DetailsObjects

it is not a boolean operation

[stable yew]

How do I make it so that it checks if the local variable password matches with the username actuall password in the db

[inland oak]

Details.objects.filter(Username=user,Password=passw).first() is not None

that would be a boolean result

[stable yew]

What is .first

[inland oak]

getting first object from the list

remember, you get the list

[stable yew]

Like the first Id value in the db

[inland oak]

first object instance.

ID is only part of the instance

[stable yew]

Yeah

[pallid lily]

how to i reference a one to one field from parent ```py
class Profile(models.Model):
id= 1
name = 'Potato'

class Settings(models.Model):
id = 1
profile = models.OneToOneField(Profile)

is it reference like profile.settings?

[stable yew]

Let's say we have 10 values in the db

.first() gives the first value from the db ?

Is that what you mean tbyfirst object instance

[inland oak]

Details.objects.first()

will return return first object of Details, yes.

[stable yew]

Oh

[inland oak]

returned object is
Class:
pk # ID
your attributes # and etc

instance of class object

[stable yew]

Oh ok

[pallid lily]

can some one look at my question please :d

[stable yew]

And like you said I could use a variable also right

As a bool variable

Also can I use Auth0 ? Or django inbuilt auth

?

[daring isle]

what looks silly? adding .all()

[inland oak]

yes

it should do nothing additional in behaviour

[daring isle]

then its not about how it looks just that its not needed

i thought you meant the whole sentance

[inland oak]

.all() part should be not needed in objects = Details.objects.filter(Username=user,Password=passw).all()
that what I mean to say

[daring isle]

bad habit 😆

[stable yew]

@inland oak

[inland oak]

I had it too. except I did it like objects = Details.objects.all().filter(Username=user,Password=passw) Select all and then filter out of them ;b

[stable yew]

Can someone reply

[inland oak]

u can use whatever sort of auth u wish on top of using ORM

those are separated concerns and responsibilities and completely not related to each other

well technically related since auth can use your Django ORM as a source of users for verification

but that depends on the chosen auth

[daring isle]

i have an avatar in one of my components overlapping my sidebar.
how do i define the hierarchy ?

the avatar is on a card which stays behind the navbar like it supposed to

*in React

[stable yew]

ahh ok

[inland oak]

CSS attribute
z-index: 0;

[stable yew]

what does this simply return

Details.objects.filter(Username=user,Password=passw)

like only this withought the first()

also here when i inter the right password

it redirects me to the registration page whihc means the password was wrong ut it really wasnt

@inland oak

[daring isle]

legend

[stable yew]

im getting None returned

[inland oak]

An object similar to List, which is named smth similar to QueryList or smth like that

[inland oak]

Make better test coverage with pytest

[stable yew]

this is returning none to me

[inland oak]

Don't ping me to question, ask everyone

[stable yew]

welp

lol

[stable yew]

when i use tis it returns mama no matter what even uif password is correct

[inland oak]

write tests, seek errors earlier

[stable yew]

and if i use Details.objects.filter(Username=user,Password=passw).first() returns joe no matter what

theres some thing wrong with the validation

either both are wrong sets of validating, or im blind

[stable yew]

cool

[daring isle]

are your field names capitalised in your database?

what are you trying to achieve? a login page ?

[daring isle]

i have my route set up and working api side, in react when i click a user in the user list to get to a page with their details - its refreshing the page and returning to index and giving this error.
Can anybody help?
im using a Link href in the component, its showing as the correct address in the bottom left with the pk:id after the /

[native tide]

Helloo, what do you guys recommend to use for user authentication? Is it (custom) sessions or tokens, or the two combined?

It's for login management

[wise kite]

after deployment gunicorn is not able to read gunicorn.sock becouse of enforcing mode. but if i change it to permissive it work

[wise kite]

help

[daring isle]

what platform?

[native tide]

I'm using flask

[daring isle]

i just used the login_manager when i used flask

loginmanager*

[rotund perch]

Hello, I use built it Django features and I often try to avoid overriding because I see it a complicated part for me. Is it possible to tell what things are usually overridden (and what things we have not to touch) and in what classes/functions. For example, we can override the **save** method inside the **model** class to edit the way of saving the models in the database, we can override the **serializer** so we can add additonal fields, etc. I know thats so general but I hope someone gives me a refrence atleast for the most often overridden things in Django.

[daring isle]

hey bro

https://www.django-rest-framework.org/?q=override

i dont know about a list but if you search ovveride in the documentation it gives you quite a lot of results

[eternal blade]

Hey, https://stackoverflow.com/questions/70375371/channel-layer-send-not-calling-event-handler
Please check my question, Thanks

[native tide]

Hello everyone

I am developing a python app flask which is called by an another app via URL : https://host name:port/arg1=mdp &arg2=user -->hostname is my iis web server where i deployed the app. I would like to have a log per user --> when the user run the app it should normally create his own log and write in it, but unfortunately the mainthread write in all the logs of all users . I have tried : lock thread, multilogging, semaphore, socketio, calling with start-newthread -->No success 😦 Thanks for help

anyone can help please?

[rotund perch]

wow Thank you!

[daring isle]

sorry bro beyonf my level, but what action is supposed to call the consumer function in this setup?

[stable yew]

yes i was trying to create a login page, yes my fields in db are capatilized

[eternal blade]

The async_to_sync(channel_layer.send)() should call the chat_message_create method of ChatConsumer

But it doesn't

[eternal blade]

Any debug print statements in chat_message_create don't get printed

[daring isle]

you need an if funtion to check if a log exists , and if not create, then write

[native tide]

actually, when running the app it creates a log wit username and should looging in it

[stable yew]

can anybody hel me with this, been trynna solve this issue for hours, its not authenticating the password and username properly from Db, i think there might some problem with the db or im using the wrong way of auth.

https://tenor.com/view/sadgecry-sadge-cry-gif-18423674

[daring isle]

you're definitely not using the way i auth

[native tide]

it initialise it in the root function upload

[stable yew]

i have tried using authenticate tooo

[stable yew]

which method do yu use

[daring isle]

JWT

[stable yew]

ahh yes ik about that

but

[daring isle]

are you making an api or normal django?

[stable yew]

im trying to authenticate the basic way first

[stable yew]

normal django registration login website

[daring isle]

let me check my django app files one sec

[stable yew]

oke

lmk if oyu wanna check my code

[daring isle]

@incorrect_user
def login_user(request):
    if request.method == "POST":
        username = request.POST['username']
        password = request.POST['password']
        try:
            user = authenticate(request, username=username, password=password)
        
            login(request, user)
            
            return redirect('home')
        except:
            messages.info(request,' username/password are incorrect')
            return redirect('login')
       

    else:
        
            
          

        return render(request, 'authenticate/login.html', {})

[stable yew]

thats exactly what i tried using

it returns None

[daring isle]

try this...

[stable yew]

i typed in the corrct pass and username

[daring isle]

replace your variables with strings

in your filter

and see if it works

[stable yew]

alright

[daring isle]

if it does then you know its an issue with your data fetch

[stable yew]

nope still doesnt work

returns None

can you show your models?

[warped aurora]

how do you access field data when looping over a wtform?

          <div class="form-group">
            <label for="title">{{field.label.text}}</label>
            <input type="text" name="title" placeholder=""
                   class="form-control"
                   value="{{field}}">
          </div>
        {% endfor %}```
getting none

[stable yew]

[warped aurora]

form.fieldname returns the value but I'd rather not have to type that out for every fieldname

[native tide]

i open the log with 'a' mode

[daring isle]

does your database return anything when you print all? beside the auth

my models are the standard django users

[stable yew]

using Details.objects.all() it prints all the Usernames

[daring isle]

Instead of creating a custom user model i just used foreign key to link to the fields i needed in a seperate table

[stable yew]

can you give me an example

[daring isle]

did you change your auth user model

in settings.py

[stable yew]

like username,password in one table and details in another?

if you think technically authenticate(Username=inp,Password=inp2) should return NOT NONE if the details are right

but it doesnt

[native tide]

i wanna learn coding

it seems interesting

[daring isle]

i needed my users to be assinged to a 'branch' , so i set up a table called profile which has the username as a foreign key of the** user table** and **branch ** as a foerign key of a table of branches

did you change your auth user model?

in settings

AUTH_USER_MODEL ='appname.ModelName'

[stable yew]

im not sure

lemme check

[daring isle]

change this for your app and paste it in the bottom

AUTH_USER_MODEL ='members.NewUser'

[native tide]

why doesnt this work? ```php
<?php
$JobID = $_GET['jobid'];

$output = shell_exec("D:\xampp\htdocs\HumaniumPY\CloseJob.py {$JobID}");
print ($output);
?>``` my python script works fine but it is my php i think

[stable yew]

i dont even have that variable available

only one i have is AUTH_PASSWORD_VALIDATORS

[daring isle]

Yeah you won’t have

You need to create it

Paste it in

I think it defaults to the django user model otherwise

Make sure you change it to your appname then a “.” Then your model name

[stable yew]

ok

[daring isle]

interesting and stressful if you're like me

[stable yew]

is it caps sensitive

the model/app name

[daring isle]

yes

[stable yew]

Details in my model name

[daring isle]

what are you trying to achieve

show me your details model

[daring isle]

pls

[stable yew]

yeah

?

[daring isle]

you need this in it

USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['sername', 'Password']

[stable yew]

oh

[daring isle]

show me your model for details

[stable yew]

im sorry im new to django 😦

ignore the other class

[daring isle]

under your region paste the code i put

[stable yew]

ok

[daring isle]

then try authenticate again

this might not work, because you might need to abstract it first, but im seeing if it works directly- i dont really know.

if it doesnt you can do it the other way

[stable yew]

big yikes

oh zamn

you know what

[daring isle]

@property
    def is_staff(self):
        return self.is_admin

    @property
    def is_anonymous(self):
        return False

    @property
    def is_authenticated(self):
        return True

    class Meta():
        db_table = 'auth_user'
        verbose_name = 'User'
        verbose_name_plural = 'Users'

[stable yew]

ill try rebuilding my model

ill come back

[daring isle]

you need these under your def

[stable yew]

class meta?

ohh

ok

[daring isle]

infact

best thing

[stable yew]

yes 😦

tell me

[daring isle]

https://thecodelearners.com/django-creating-custom-user-model-with-custom-authentication-backend/#:~:text=Create a new project by typing command django-admin,command creates a new app for the project.

follow this

[stable yew]

:pog:

pog

ill do it

thanks

ill get back

[warped aurora]

Basically I'm trying to edit a row in the database, so I'm prepopulating the form fields so the user can edit and then submit. But there are a lot of fields so instead of typing out

                   class="form-control"
                   value="{{form.field}}">
``` for every form field, I wanted to just loop over the fields

[daring isle]

what result you getting right now?

[warped aurora]

so first I was trying to do this

   value ="{{field}}"```
that returns None...then i tried value ="{{field.data}}" which was also none...so I then i checked form.data and then returned a dictionary with the {"field_header":None.....} for all fields

so form.data is empty

[daring isle]

try take it out of the divs

and render straight to the page

{% for f in form %}
{{f.label}} <br>
{{f}}
{% endif %}

put a br nex to that second {{f}} too

then see if your form getting rendered , it wont be pretty

but at least then you know its your div syntax and not you form

[warped aurora]

So it's showing empty inputs for all the fields

[daring isle]

did you state the intial data in your view?

[warped aurora]

but the labels are outputting correctly

    vehicle = Vehicle.query.filter_by(T_Number=T_Number).first()
    form = vehicle_form()
    form.T_Number = vehicle.T_Number
    form.year = vehicle.year```

[daring isle]

so in your case replace my obj in my instance with vehicle

it should populate your form with the first entry like in your query

it should look like that

wait

lol

[warped aurora]

lol?

[daring isle]

form = vehicle_form(instance=vehicle)

try that

[warped aurora]

so just passing the whole query result to the form

[daring isle]

yeah

because the form is linked by the model in the forms.py

so it knows what to do with the goods

[warped aurora]

the forms got a submit field at the end, and the model has relationship at the end, is that problem?

[daring isle]

you mean submit button?

[warped aurora]

yea

submit = SubmitField("Submit")

[daring isle]

just make sure your syntax is like this:

<form method='POST'>
(% if statement and form stuff % }
{% end for%}
<button stuff>
</form>

i had my button value="save" and it worked out well for me, not sure if its necessary

and in view i had

            vehicle= form.save(commit=False)
            form.save
            vehicle.save() 

make sure you're passing your vehicle object through your context to the template too

[warped aurora]

    __tablename__ = "vehicle"
    T_Number = db.Column(db.String(10), primary_key=True, index=True, nullable=False)
    white_plate = db.Column(db.String(10))
    green_plate = db.Column(db.String(10))
    status = db.relationship('Status', backref='details', lazy=True)

class vehicle_form(FlaskForm):
    T_Number = StringField(validators=[Length(1, 14)])
    white_plate = StringField(validators=[Length(1, 64)])
    green_plate = StringField(validators=[Length(1, 64)])
    submit = SubmitField("Submit")

@app.route("/update/<T_Number>", methods=("GET", "POST"), strict_slashes=False)
def update_details(T_Number):
    vehicle = Vehicle.query.filter_by(T_Number=T_Number).first()
    form = vehicle_form(instance=vehicle)
    return render_template("update.html",
                           T_Number=T_Number,
                           form=form
                           )

<form action="" method ="POST" class="edit-form" id="edit-form">
      {% for field in form %}
        {{field.label}}
        {{field}}
      {% endfor %}
  </form> ```

[warped aurora]

do you mean pass the vehicle object in render_template?

[daring isle]

oh snap you're on flask

[warped aurora]

Loool

[daring isle]

i thought you were on django lol

[warped aurora]

oops

[daring isle]

acc

maybe not even necessary

is it working so far?

[warped aurora]

nah

[daring isle]

ok you need

vehicle= "query here"

    form = VehicleForm(obj=vehicle)
    if form.validate_on_submit():
        form.populate_obj(vehicle)
        db.session.commit()

[warped aurora]

Ah!

changing it to obj=vehicle did something

[daring isle]

did it do the right thing ?

[warped aurora]

      {% for field in form %}
        {{field.label}}
        {{field.data}}
      {% endfor %}
  </form>``` so this is now returning the corresponding values

[daring isle]

ok nice one!

[warped aurora]

thanks! now to get it looking good

the loop is also including the crsf token as an input field lol

[daring isle]

lol, just move it above the loop but under the <for> tag

<form>

[daring isle]

does it matter that this user is capitalised?

f"User-{member.user.id}",

[eternal blade]

Its case sensitive, but I use the same capitalization in all places so it shouldn't be a issue

[daring isle]

the two users in that sentance are different capitalizations

[warped aurora]

the submit field has also been included as an input, so I'm going to have to exclude the last 2 elements in the loops i guess

{% for field in form if field.widget.input_type != 'hidden' %} takes care of the CSRF

[daring isle]

try:

                            <fieldset>    
                            {{ form.csrt_token }}  
{% loops %}
<Divs>
{ % endloop %}
<button>


                              </fieldset>
                                  </form>

your token shouldnt be inside your for loop tags it should be out of them

same with your button

token above them and button below them

change your form action as well, the one i posted is for my project

[warped aurora]

Ye but the problem is that they are form attributes so looping through the form will always return them i think, even if I manually place the token and button outside.

[daring isle]

Ah ok I forgot that quirk I’m flask

[native tide]

Is there someone who is familiar with PHP and Python?

I have this code in PHP and I need to write it in Python

[eternal blade]

Can you show me where?

The User in the channel name is also uppercase py self.channel_name = f"User-{user.id}"

[daring isle]

f"User

[eternal blade]

the User in the channel name is also capital so it shouldn't be a problem

But when I do py async_to_sync(channel_layer.send)( f"non-existant-channel", { "type": "non-existant", "payload": MessageSerializer(instance).data, }, )

It should error but it doesn't 🤔

[daring isle]

so its either not reaching your if statement, or its not registering that its created

[eternal blade]

Any print's in the if statement gets printed though

if created:
        chat_group = instance.channel.chat_group
        for member in chat_group.members:
            print("dispatching message to user", member.user.name)
            async_to_sync(channel_layer.send)(
                f"User-{member.user.id}",
                {
                    "type": "chat_message_create",
                    "payload": MessageSerializer(instance).data,
                },
            )
            print("sent message to user", member.user.name)```

both of the print statements get printed

[daring isle]

do you need a receive? or no?

[native tide]

how do i block people from viewing my .py scripts on my apache webserver?

i am not good with config stuff

any way to convert Pillow image to django image field without having to save the image

[daring isle]

saw this online under the consumer class:

async def receive(self, text_data):
        # give control back to the loop, `chat_message` is triggerd
        await self.channel_layer.send(self.channel_name, {
            "type": "chat.message",
            "text": "1",
        })

[eternal blade]

I don't think its compulsory

[native tide]

I should use Tensorflow in backend. It takes a lot to load it...I just need to use method "predict" for model- is there any way to load just that method to speed up request?

[eternal blade]

It didn't work with and without the receive method

[inland oak]

no idea how Tensorflow is structurized, but that can be possibly of help

from PackageName import DesiredMethod

[native tide]

Do you know how can I locate package name for predict?

[inland oak]

I am having no idea what you are talking about

[native tide]

You said from PackageName...I am not sure to what package function predict belongs

in Tensorflow it's used like this "model.predict(...)"

[inland oak]

provide example of code how you reach the model.predict()

[native tide]

Sorry, I am not sure what you mean by "how you reach the model.predict()"

Do you mean how my imports look like?

[inland oak]

provide sufficient enough example of code that covers how it goes from importing library to using predict

[native tide]

import tensorflow as tf
model = tf.keras.models.load_model('handwritten_character_classifier_model.h5')

@inland oak

[inland oak]

you can replace to

from tensorflow.keras.models import load_model
model = load_model('handwritten_character_classifier_model.h5')

here you go, you don't need to import tensorflow any longer 😉

if will not help you though, because I have a feeling that 99% of your time is taken by model loading

[native tide]

and I also need to use these lines:

model.predict(img_array)

keras.preprocessing.image.load_img(img_path, target_size=(160, 160))

[inland oak]

you just need to make that model would be loaded just once

[native tide]

keras.preprocessing.image.img_to_array(img) * (1.0 / 255)

tf.image.rgb_to_grayscale(array)

[inland oak]

minimize amount of times when you load the model

[native tide]

keras.preprocessing.image.array_to_img(array)

from gan import EnhanceAgent
from basicsr.archs.rrdbnet_arch import RRDBNet
import flask
from PIL import Image
import io
import numpy
import cv2
import StringIO


upscale=EnhanceAgent(
    scale=4,
    model_path="ImageEnhance.pth",
    model=RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=23, num_grow_ch=32, scale=4),
    tile=0,
)

@app.route("/enhance", methods=["POST"])
def enhance():
    if flask.request.method =="POST":
        if flask.request.files.get("image"):
            image=Image.open(io.BytesIO(flask.request.files("image").read()))
            image=np.array(image)
            final=upscale.enhance(image, outscale=3.5)
            return final

I have the following flask view and I want to test it using the command line, how would I do so?

is there any way to test it without making an interface for it

[inland oak]

https://flask.palletsprojects.com/en/2.0.x/testing/
have you tried reading this?

use flask test client to request its end points with comfort in pytest

[native tide]

@inland oak Are you familiar with Flask?

[inland oak]

I used it a year ago.
I said goodbye to it back then ;b

[native tide]

well i was hoping that I could just make a cURL to test it

but this is fine too

[native tide]

Do you mean, write a test, or make sure the endpoint returns something manually? If a manual test, curl, httpie, postman shoudl work

yeah can I use cURL?

how would I do so?

there's no url to test

[inland oak]

pytest is cooler than curl.
nothing stops you from using curl though

curl can make POST requests

[native tide]

ok so then how would I do so, there's no url?

if you're running the dev server, something like curl 127.0.0.1:5000/enhance and you'll have to specify your payload

could also write a small client with requests in python

when I run python flask run, it doesn't start the dev server

[inland oak]

better to do that by the link I provided. because it allows to have it as unit test which requires nothing to launch except pytest command

otherwise people also make testing in staging environment.
That happens where they deploy to special environment for testing
and then run curl or pytest tests or anything else

unit tests are faster and easier than integration tests in general

[native tide]

I don't want to extensively test, I just want to make sure the flask wrapper is returning something reasonable

[inland oak]

run it as server in whatever you can

flask run / gunicorn / or whatever you use in order to deploy it

it does not matter

[native tide]

ok I have to set an app.py

[tight ocean]

Does anyone have experience with myplotlib in python?
There's one thing I don't seem to get it work
It'd be lifesaving if anyone could help me

Ping me if you are interested to help

[native tide]

from gan import EnhanceAgent
from basicsr.archs.rrdbnet_arch import RRDBNet
import flask
from PIL import Image
import io
import numpy
import cv2
import StringIO


app=

@app.route("/enhance", methods=["POST"])
def enhance():
    
    if flask.request.method =="POST":
        if flask.request.files.get("image"):
            image=Image.open(io.BytesIO(flask.request.files("image").read()))
            image=np.array(image)
            upscale=EnhanceAgent(
    scale=4,
    model_path="ImageEnhance.pth",
    model=RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=23, num_grow_ch=32, scale=4),
    tile=0,
)
            final=upscale.enhance(image, outscale=3.5)
            return final

this file is named enhance.py

whenever I run the following commands set FLASK_APP=enhance.py

and flask run

I get the following error:

Error: While importing 'enhance', an ImportError was raised.

[austere relic]

just ask

also, this is the wrong channel

[tight ocean]

I'm trying the text property in matplotlib to work, but it won't unfortunately

I have been stuck forever lol

[paper moon]

So I have a function named test on the backend, how can I call it in the jinja template? Should I pass it to the context and just simply do test() in the html file with the required args?

[thorn igloo]

what are you trying to do

[daring isle]

Django ?

[paper moon]

Flask

[tight ocean]

I want percentage texts like this

[paper moon]

But I am using jinja as the templating engine, so ig the procedure should be the same for all modules, no?

[tight ocean]

But I currently have this

[daring isle]

In django , in the view / url method of doing things .
Your view is fired off when you visit a url you route so it’s easy .
You just put your stuff between the function name and return lol

[tight ocean]

Each section has its own color, but I also want it to have text each section

[daring isle]

Let me check for flask

Yeah just put it in your route

[paper moon]

The test function, for now is

def test(name):
    return {"name": name}

@app.route("/")
def home():
    return render_template("home.html.jinja", test)

Something like this should work?

[thorn igloo]

yea I'm not that advanced of a matplotlib user

[daring isle]

Yeah

Wait

No

[paper moon]

Well context is a dict cz it is **context, so I am guessing there is something missing here

[daring isle]

def home():
      test()
    return render_template("home.html.jinja")

[paper moon]

wait no

I want to get input from a textbox and pass it to the function

!d flask.render_template

[lavish prism]

flask.render\_template

flask.render_template(template_name_or_list, **context)```
Renders a template from the template folder with the given context.

[paper moon]

see, there's a context arg too

[daring isle]

yeah got you, you just put the arg in the function ()

you define it in its own thing before you call it

[daring isle]

and when you call it you put the value you need as the arg

[paper moon]

ah cool

[daring isle]

you can put the output into contect not the function

context*

[paper moon]

Huh?

[tight ocean]

Can anyone else help me?

[paper moon]

wym output?

[daring isle]

the output of your function

[paper moon]

well it varies, since it depends on the arg passed to it, and I get the arg from the textbox in the HTML file

[daring isle]

so after a form submit?

[paper moon]

yea

Its like, the person clicks the button, the textbox's value is passed to the function and the result is shown on the website

[daring isle]

you can grab the form data in the same function i think

its like 1 line of code

but depends on your requirements

[paper moon]

I am confused rn ngl

[daring isle]

lol, why dont you try explain exactly what you're trying. i may have already done it

whats the end goal

[paper moon]

The user inputs a string in the textbox, clicks the submit button, jinja gets the input and passes it to a function (not this one, but the main function also returns a dict of the same type) and then the dict is shown on the website with a for loop

[daring isle]

ok so excuse my terminology im quite new...

jinja aint doing shit except displaying your stuff. what will happen is the original function you have the form in will receive the form data

[paper moon]

Mhm

[daring isle]

once you have it captured there, you're then moving to another template right?

[paper moon]

No

The page is the same

istg I should just use dash/pywebio or something

[daring isle]

somebody else will have to chime in if thats possible, because i think these forms are post , so will reload your page

[paper moon]

oh

[daring isle]

i guess you could do an if statement

[paper moon]

hmm i'll figure it out thanks

[daring isle]

like if submitted in request true

[paper moon]

BTW have u ever used dash or streamlit or smth?

[daring isle]

you know the easy/lazy answer to this is store the input it in your database lol, then it will be there for sure regardless

[daring isle]

nope

[tight ocean]

Does no one have experience with matplotlib?

[paper moon]

never used it sorry. try #❓｜how-to-get-help

[daring isle]

you're going to need javascript if you dont want a page reload

[inland oak]

Ask in #data-science-and-ml

It is more related channel for this

[tight ocean]

Will do

[daring isle]

trying to drill down from a list of users to a single user view.
working fine in postman but im getting this error and my app is refreshing.
any ideas anyone?

I have a link on a card for each user and I’m passing a href /userlist/ + {item.id}

[dense slate]

Want to show the js code?

That's what's causing your error.

[daring isle]

import React from 'react';
import ReactDOM from 'react-dom';

import './index.css';
import { Route, BrowserRouter as Router, Switch } from 'react-router-dom';
import App from './App';
import Header from './components/Header';
import Navbar from './components/Navbar'
import Footer from './components/Footer';
import Register from "./components/register";
import Login from "./components/login";
import Logout from "./components/logout";
import BottomNavBar from "./components/FixedBottomNavigation";
import Userlist from './Userlist';
import Single from './components/Single';
import SingleUser from './SingleUser';

const routing = (
    
    <Router>
        <React.StrictMode>
            {/* <Header /> */}
            <Navbar />
            <BottomNavBar />
            <Switch>
                
                <Route exact path="/" component={App} />
                <Route path="/register" component={Register} />
                <Route path="/login" component={Login} />
                <Route path="/logout" component={Logout} />
                <Route path="/userlist/" component={Userlist} />
                <Route exact path="/userlist/:id/" component={Single} />
            </Switch>
            
            
            
        </React.StrictMode>
    </Router>
);

ReactDOM.render(routing, document.getElementById('root'));

this is my index.js

<Route exact path="/userlist/:id/" component={Single} />

this is where im trying to go

forget the "exact" part i just added

this is where im trying to go...

not letting me post ...
but im sure the destination isnt the problem its my routing

I’m new to react and tried following a tutorial and applying my own use case ,

[inland oak]

!code

[lavish prism]

Here's how to format Python code on Discord:

```py
print('Hello world!')
```

These are backticks, not quotes. Check this out if you can't find the backtick key.

[inland oak]

use js tag

[daring isle]

if you see the bottom left the address seems fine when i hover over

the full api address in django is
http://localhost:8000/api/userlist/1/

Not sure how to use js tags

I've created the viewset and serializer, i just cant figure out how to get to a specific record

[dense slate]

Usually that's an issue with how you're calling or setting state.

So I have the feeling it's in one of your components.

[daring isle]

Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.
at Userlist

i think you're right

[dense slate]

What is Userlist? Is it undefined?

You might need to set Userlist before you apply it to your route - thus needing a useEffect.

[daring isle]

its the component im trying to call the url from

[dense slate]

Print it to your console.

[daring isle]

import React, { useEffect, useState, useRef } from 'react';
import './App.css';
import Posts from './components/Posts';
import Users from './components/Users';
import PostLoadingComponent from './components/PostLoading'
import Stylesheet from './components/Stylesheet';
import Mylogo from './components/Mylogo'


function Userlist() {
  const PostLoading = PostLoadingComponent(Users);
  
  
  const [appState, setAppState] = useState({
    loading: false,
    userlist: null,

  });
  useEffect(() => {
    setAppState({ loading: true });
    const apiUrl = 'http://127.0.0.1:8000/api/userlist/';
    fetch(apiUrl)
      .then((data) => data.json())
      .then((userlist) => {
        setAppState({ loading:false, userlist: userlist });

      });
    
      
      

  }, [setAppState]);

  


  
  return (
    <div className="App">
      
      
      <h1>User List</h1>
      <PostLoading isLoading={appState.loading} userlist={appState.userlist} />
      
     
    </div>

  );
}
export default Userlist;

[dense slate]

If it's a function, then it needs to be Userlist() i would think

[daring isle]

that did something,

[dense slate]

Otherwise you're just trying to use a Userlist function, not what it returns.

[daring isle]

now i have a blank screen with the correct url listed

[dense slate]

Neato

[daring isle]

aha progress, thaks man

[dense slate]

Yep yep

[daring isle]

oh no, this makes the whole app blank lol

i gotta go watch spiderman, guess i'll try later!

[native tide]

do I need to restart my computer after pip installing opencv to make it work?

I just pip installed it however when I try to import cv2, it throws a modulenotfounderror

[regal carbon]

how do you build a post archiving website/webapp?

which tech stack to use

how to even start?

[thorn igloo]

list your requirements for this webapp. from this requirements you'll be able to determine what you need and choose the stack that will meet your needs

[regal carbon]

It can scan documents and can be used offline

and store those documents in a database but i dunno which one

[native tide]

Does anyone have experience with hosting Flask app on Heroku?

How should this line look in Heroku?

serve(app, host="0.0.0.0", port=8080)

[thorn igloo]

wiat

wait*

[thorn igloo]

you want a web app that's capable of working offline

[regal carbon]

ya

[thorn igloo]

i mean there's PWAs, but im sure there's like limitations to what you can do with that

[thorn igloo]

like, for heroku

im not sure what your serve function is doing, but basically you need a Procfile file

[regal carbon]

oh boi,

[thorn igloo]

and inside that have something like

web: gunicorn wsgi:app

[native tide]

What you mean by serve function? What's Procfile?

[thorn igloo]

here wsgi refers to the filename where i've important app if that makes sense

[regal carbon]

is PWA like .NET?

[thorn igloo]

progressive web app

google

[thorn igloo]

it's the file you need to run your web app on heroku

you have serve(app, host...) etc, what is serve here?

you're the one using it

i'm just mentioning it

[thorn igloo]

like for example

from app.main import app

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

this is the contents of my wsgi.py file

obviously you can name this anything, just make sure your Procfile reflects that

[thorn igloo]

back to this, do you have a structure of how you want to store your stuff?

[regal carbon]

no

[thorn igloo]

so why are you worrying about a tech stack when you haven't fully listed your requirements for the app

[thorn igloo]

https://devcenter.heroku.com/articles/getting-started-with-python#define-a-procfile

so here's some more info on the procfile

[river pelican]

Anyone here who's a superboss with Dash?

[tight ocean]

Does anyone have experience with matplotlib and would like to help? :)

[native tide]

In local environment I have this code

Do someone know how should I change it for Heroku?

[thorn igloo]

all you need for heroku is a Procfile as i've mentioned

[native tide]

Thanks, I will google about Procfile

[thorn igloo]

yes, you will also need to add gunicorn in your requirements.txt

[native tide]

Damn, new terms - gunicorn and requirements.txt

[thorn igloo]

wait, you don't know what the requirements.txt thing is

this is just a list of your installed python dependencies

[native tide]

I see, that was my assumption

But what's gunicorn?

[river pelican]

I have my issue specified in the #help-carrot channel

[native tide]

Another dependecy?

[thorn igloo]

basically a webserver thing

it's what heroku will use to run your web app

[native tide]

@thorn igloo How do I know what should I put in requirements.txt? Basically what I import and gunicorn?

[wise osprey]

has someone made an inventory management like app in Python?

[thorn igloo]

pip freeze > requirements.txt

assuming you're using a virtual environment

if you're using the global installation, it will list every package you've ever installed and you dont really want that

[native tide]

What will pip freeze do? Look into my files and see what I import?

[thorn igloo]

no, it will create the requirements.txt file based on the python libraries you have installed

[native tide]

Nice, so I will just delete libraries that I don't use

[thorn igloo]

...

better to just use a virtual environment in the first place

[native tide]

@thorn igloo Can you pls explain virtual environment in context of using Heroku?