web-development

[pallid lily]

it is like a help for programmer to understand the function further?

[frank shoal]

You could also use list[str] to say a list of strings

Yes. It's purely a devtime check. It's ignored at runtime

[pallid lily]

ahh thanks dude

alot for me to learn

[frank shoal]

BTW it's not really related to web. Are you using fastapi?

[pallid lily]

no no was just trying to learn more about OOP

befor learning Django

i still don't understand why some times i see @login_required as decorator befor some functions

things for me to understand 😄

[frank shoal]

Do you know what a decorator is?

[pallid lily]

not really

i think it splits classes

[frank shoal]

It's a function that takes a function and returns another function

def x(): pass

x = foo(x)

# shorthanded to
@foo
def x(): pass 

[pallid lily]

ohh

it is like a modification to an existing function

[frank shoal]

And the @ syntax merges it with the declaration

[pallid lily]

oh

thanks dude

[frank shoal]

Example creation of decorator

def foo(func):
    @functools.wraps(func)
    def decorator(*args, **kwargs):
        # do stuff before
        r = func(*args, **kwargs)
        # do stuff after
        return r
    return decorator

[pallid lily]

[frank shoal]

You can stack decorators too

[pallid lily]

okay i will try to understand it further maybe i will need it while coding

[pallid lily]

Thank you @frank shoal this is a link explaining decorators for any whom are interested to learn it too. https://www.geeksforgeeks.org/decorators-in-python/

[dusk sonnet]

How can i fix images going outside my body's height?

the height property for my page is set as follows

    min-height: 100vh;
    height: auto;

increasing min-height to 200vh works but idk if its bad to do that or not

[fair agate]

How do I use Django to run a python function when a button is pressed?

[glad creek]

not sure if this is the right section for my question but has anyone worked on a fintech/blockchain project? Or with cryptocurrenies API's?

[vestal hound]

what button

like on the frontend?

[runic sage]

Hi I have a certain confusion while deploying my django project on heroku. When its deployed, the default domain would be no SSL (http://invid19.herokuapp.com). Ive tried to change my settings from ALLOWED_HOSTS = [f'{HEROKU_APP_NAME}.herokuapp.com'] to ALLOWED_HOSTS = [f'https://{HEROKU_APP_NAME}.herokuapp.com'] but it only make the deployed project had a bad request 400 on production then I revert to the old code.

Then, weirdly idk why if I type my domain manually using https (http://invid19.herokuapp.com), it will be no error, but the default domain still using http if we dont type it manually

does anybody now why my django project cant use SSL as a default domain

[wooden ruin]

if i recall correctly heroku does not provide ssl certification on a free dyno. you will need to manually configure heroku through the CLI for https support assuming you have a paid dyno

[fair agate]

Yeah, on the frontend, a button which the user presses which triggers some python code

[runic sage]

Yeah Ive read this on several blog like stackov etc. What cofuses me a lot is, I've deployed several projects before and suprisingly it make https as it default, and idk why because long time ago I was copasting from a blog "how to deploy on heroku"

here is one example of my deployed project that automatically using https as you type in browser

anti-maba-deadline.herokuapp.com

its weird now when I try to deploy a project once again and its appear http on its default

even though I use the same method to deploy my django project on heroku

[pallid lily]

is there like a certain Hashing library i can use in both Django and Tkinter?

[stuck narwhal]

Can someone please help me with api call and postman,I'm really lost

[fading niche]

Could someone help me? I have a button at the end of a form and am having trouble figuring out how exactly to make it submit the form answers to a function
I'm using an event listener but I'm not quite sure how to do it
This is what I have right now document.getElementById("addbtn").addEventListener("click", addEmployer.bind(null, ));
The js function I want to use is addEmployer and it has multiple parameters (which are the form fields)

This is like a super quick question for anyone with any actual knowledge, I just don't know what im doing 😦

[civic crater]

hey what is MultiValueDictKeyError ??

views.py

def addProd(request):
    form = addForm()
    if request.method == 'POST':
        if form.is_valid:
            product_name = request.POST['Product_Name']
            product_img = request.FILES['Image']
            product_desc = request.POST['Description']
            product_price = request.POST['price']
            product_seller = request.user
            print(product_seller)
    return render(request, 'addProd.html', context={"form":form})

Browser

MultiValueDictKeyError at /shop/add
'Image'
Request Method:    POST
Request URL:    http://localhost:8000/shop/add
Django Version:    3.2.4
Exception Type:    MultiValueDictKeyError
Exception Value:    
'Image'
Exception Location:    C:\Users\Rajiv\AppData\Local\Programs\Python\Python38\lib\site-packages\django\utils\datastructures.py, line 78, in __getitem__
Python Executable:    C:\Users\Rajiv\AppData\Local\Programs\Python\Python38\python.exe
Python Version:    3.8.10
Python Path:    
['C:\\Users\\Rajiv\\Desktop\\Ishant Files\\main\\proj\\Back-end\\iCart',
 'C:\\Users\\Rajiv\\AppData\\Local\\Programs\\Python\\Python38\\python38.zip',
 'C:\\Users\\Rajiv\\AppData\\Local\\Programs\\Python\\Python38\\DLLs',
 'C:\\Users\\Rajiv\\AppData\\Local\\Programs\\Python\\Python38\\lib',
 'C:\\Users\\Rajiv\\AppData\\Local\\Programs\\Python\\Python38',
 'C:\\Users\\Rajiv\\AppData\\Local\\Programs\\Python\\Python38\\lib\\site-packages']
Server time:    Fri, 15 Oct 2021 09:26:23 +0000

[drowsy delta]

Hey friends, what is learn Django or php Crouse for beginner? which better for web development?

[pallid lily]

Django

[sudden quail]

can anyone recommend a good django course

[dusk portal]

Yes Django 😂😂

[dusk portal]

Both if u know python learn Django. If u know Php learn Laravel
If u don't know both learn py and then django it will help in other fields too

[dusk portal]

Django official doc's quick start section u will find 1
Corey Schafer
CodingEnterpreneur
Trasevery Media
Many bro

@civic crater I can help.
Ping when u're back online (free)

[sudden quail]

Thanks bro i will check them out

[dusk portal]

There are thousand
Learn 1 then try ur own
Try not to complete couses instead of it when u complete 1 concept
Try to get better at it and learn in depth

And apply in own use case

And different different parameters n different different uses cases

[native tide]

does anyone know about a dashboard builder drag and drop free?

[vernal lotus]

hello anyone how to remove when I remove or delimit this character?

I am using many to many field

[smoky bane]

Hi

who can help me create sit

e

[indigo kettle]

how to remove what

[vernal lotus]

<QuerySet [<ServerGroup and [ServerGroup

I want to display only CHANNEL SERVER, DATA WAREHOUSE SERVER

[vernal lotus]

nevermind I use this

all|join:", "

[shrewd sand]

I'm having an issue with SVG backgrounds on my site: https://dev.mcaq.me/strathloop/code

https://files.mcaq.me/9uhf.png I get these lines inbetween backgrounds. but there are no actual gaps in the image. any ideas?

[lavish prism]

:incoming_envelope: :ok_hand: applied mute to @native tide until <t:1634324837:f> (9 minutes and 59 seconds) (reason: duplicates rule: sent 4 duplicated messages in 10s).

[native tide]

Hey guys, does somebody know why I'm not able to "stack" two serializers, please see: https://stackoverflow.com/questions/69588647/django-rest-framework-how-to-handle-a-serializer-instance

It seems that Django simply does not accept instance data from another validated serializer within one view

[uncut spire]

if i'm processing a number of events in some class methods, and want to batch every 100 events for insertion to a db, what's the best way to do this? was thinking a class attribute for a list that would contain event data, then when len >= 100 batch it up, send it off, clear the list, rinse and repeat--are there cleaner ways

[frank shoal]

Maybe a sql transaction?

[fickle garnet]

cleaner?

are you events coming very quickly ?

[vestal hound]

sounds fine

wrap adding to the list in a classmethod

singlethreaded, right

[civic crater]

@dusk portal i m online now

[dusk portal]

can i see ur html code

for that page

[civic crater]

yes

{% extends 'base.html' %}

{% block body %}
<div class="container">
<form action="/shop/add" method="post">
    {% csrf_token %}
    {% for formcontrol in form %}
    <label class="form-label" for="{{ formcontrol.id_for_label }}">{{formcontrol.label}}:</label>
    <div class="input-group mb-3">
    {{formcontrol}}
    </div>
    {% endfor %}
    <button class="btn btn-success" type="submit">Add</button>
</form>
</div>
{% endblock body %}

[civic crater]

👆

[dusk portal]

<form method="POST" enctype="multipart/form-data" >

add this enctype

to ur form

[civic crater]

do i need to change the enctype value??

yes it worked

[civic crater]

Thanx

[dusk portal]

done?

xD

[civic crater]

yup but..

[civic crater]

yes done

[dusk portal]

?

[civic crater]

nothin
it was showing that error again but fixed unexpectedly

[dusk portal]

nice

[foggy geode]

Anyone here who has an experience of django-autocomplete-light?

[runic sage]

tlaking about django html, whats the different between {%extends %} and {%include%}?

if I have 2 base html like navbar.html and footer.html

why I cant extends both of them

?

[pallid lily]

https://stackoverflow.com/questions/41397427/django-can-two-or-more-templates-be-extended-by-one-template/41397642

[native tide]

when i generate requirements.txt using pip freeze > requirements.txt in Django I am getting like this?. why i am getting @ and paths ?

[inland oak]

did you use venv

or used global env

[hoary brook]

What would be the best way to share a variable across my entire Flask project?
I am creating a project tracker and I want all my data in my dashboard, kanban boards etc. to change depending on the Project object stored in current_project. How would I go about initializing and sharing this variable? Currently I am setting it as None at the start of my file, then changing it when a user selects a project. But this naturally means that when I navigate to another site the variable will be reset to None again since all the code reruns...
If you have a solution, feel free to @ me so I don't miss it. Thanks.

[versed python]

Why not use an environment variable?

Oh i see why that won't work

I think writing it to a file would work

[hoary brook]

I've never had to deal with those yet, this is my first time creating a complex project that's more than displaying a few database files.

[versed python]

Is the value of this variable changing in your app?

[hoary brook]

Yes, I have a Projects page where a user can select the project he wants to view, and the other pages such as the dashboard should show the data of the currently selected project.

[versed python]

Write it to a file

To a database if you want a more permanent solution

But if it is a website then localstorage works too

[hoary brook]

I am using Flask-sqlalchemy as my database, so I would have to create a model to store that variable in, correct?

[versed python]

Yes but see if writing to file solves your needs

Database approach will come with The overload of maintaining an additional model

[hoary brook]

I'll look into it, thank you for your help!

[vestal hound]

hold up

doesn't that mean that

each user will have their own value?

[hoary brook]

Ah, that's true. I completely forgot about that.

Does that mean I have to store it in the browser cache or something like that?

[vestal hound]

if you want a user's selection to persist across browsers

use a database

otherwise localStorage is fine

[hoary brook]

Can I access this localStorage with python?

This is completely new to me, I'm sorry

[vestal hound]

no

localStorage is something that exists on the browser

and can only be accessed/written to with clientside code

i.e. JS

are you familiar

with how the frontend and backend interact

and what they are

[hoary brook]

Yes, but I'm not sure how I would handle this in any case

[vestal hound]

if you're using Flask

and don't know how to write JS

just use a database

it's simpler

and honestly

I, as a user

would expect my preference to persist across browsers

[hoary brook]

So just have a column in my User model for what project is currently selected?

What would be the best column type to use for this? Just store the ID of the project?

[vestal hound]

a FK would be wise, I think

presumably the project has its own model

[hoary brook]

Currently I just have this in my user model

currect_project = db.Column(db.Integer, nullable=True)```
should I change it to
```py
currect_project = db.Column(db.Integer, db.ForeignKey('project.id'), nullable=False)```

[vestal hound]

I don't know the appropriate syntax

as long as you make it a foreign key you'll be fine

nullability

well

[hoary brook]

Okay, thanks!

[vestal hound]

I would think you'd want to represent

"no project selected"

so

[hoary brook]

I'll keep it on True then I guess

Thank you for your help, I'll test some stuff but I'm confident I'll get it to work 👍

[vestal hound]

yw 👋

atb!

[noble torrent]

is there any way for me to fix this error? I need the blue colour to be on top of the purple colour

this is the code

[calm plume]

If you want blue to be on top of purple, you need to use the z-index in CSS.

[noble torrent]

thought so

let me try it out

[noble torrent]

but what do i add it to?

[calm plume]

Oh, I'm not sure since you're setting it with box shadow, sorry

Maybe it's just the order you put the items in?

[noble torrent]

What would my other alternative be?

[noble torrent]

it's not

[calm plume]

Just positioning all of the boxes inside a div and overlaying them on each other

[noble torrent]

I'll just use blue instead of cyan, thanks

[slate smelt]

blink text

help

[spiral blaze]

<html>
    <head>
        <meta charset="UTF-8">
        <title>Website</title> 
    </head>
    <body>

        <input type='text' />
        <input type='password' />

    </body>
</html>```

how do i make the password input bar go down ?

its side to side with the text

[calm plume]

You need to use CSS

This should work, but you really should use a div or some other parent

body {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
}

[spiral blaze]

oh, is css super important?

[calm plume]

Yeah, otherwise you get this: https://www.google.com/url?sa=i&url=https%3A%2F%2Fcss-tricks.com%2Fthat-time-i-tried-browsing-the-web-without-css%2F&psig=AOvVaw0nsRb9jpyZn5CqQLtp2Lp5&ust=1634485423513000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCKi6xOuiz_MCFQAAAAAdAAAAABAs

ah wait, that's the not link to the image

there

[spiral blaze]

ah, im currently learning flask and html right now, do you think i should css next?

i heard theres this bootstrap thingy in flask that does things like this? im not really sure

[jaunty magnet]

anyone know differences between django allauth and django rest-auth?

[calm plume]

Yes, you need CSS if you want your website to look any good

[calm plume]

Bootstrap is a framework to help with CSS, but you should still learn CSS basics

[spiral blaze]

ah alright, so i heard what bootstrap does is that injects code into html right?

i dont think i enough attention to that course

[calm plume]

No, it's just a CSS framework

Helps to style different items

[spiral blaze]

ah alright, should i learn js after all these?

[calm plume]

If you want any reactivity (which is good), yes

[spiral blaze]

how do javascript and flask interact?

if i have js in the frontend and flask in the backend

[calm plume]

Yes

[spiral blaze]

im looking at the list right now, for web dev it says theres like php, sass, less i guess i do not need to know these yet right

[calm plume]

No

PHP is a server side language, but Python works just fine

Sass and Less are CSS preprocessors, but they aren't necessary

[spiral blaze]

ah alright, how long does it take to like know flask, css, html enough to make a website?

[native tide]

not long.

just paste some tailwind or bootstrap components into templates.

https://tailwind-elements.com/docs/standard/components/search/

replace some variables in the templates for tags

{{ somvar }}

pass them to the templates

return render_template('index.html', somevar=mydata)

you're done

a day?

i mean you can learn x to the nth degree. but its pretty much it

[craggy silo]

hey, my dudes.
is there a api service to get images like this for weather?
i can't implement right now

[ivory pumice]

I hosted a django website at GoDaddy...
Can anyone help me in using smtp at GoDaddy so after submission of form mail will generate for individual...

[swift steppe]

can some one help me with selenium pls assert command

[frank shoal]

Material icons might have some

[dusty moon]

CSS question:
I'm learning about CSS transitions through W3Schools, and they show a transition example with an :hover element.

My question is: how can i direct a transition to different element states? like :focus for example.

[grave raft]

Any idea how can I create a side panel which shows all sub headings of a blog??
Anything related django, jinja, html or js will work
Thanks

[swift steppe]

from selenium.webdriver import Chrome
from selenium.webdriver.common import by   
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions, wait 
from selenium.webdriver.common.by import By 
from selenium.webdriver.common.keys import Keys  

 

PATH= 'C:\Program Files (x86)/chromedriver'
driver = Chrome(PATH) 

 
driver.get("https://google.com/")   

search=driver.find_element_by_name("q") 
search.send_keys("facebook") 

search.send_keys(Keys.RETURN)  
login = driver.find_element_by_partial_link_text("Фејсбук – пријавите се или се региструјте") 
login.click() 
wait = WebDriverWait(driver,5)

input_email=driver.find_element_by_name("email") 
input_password = driver.find_element_by_id('pass')

input_email.send_keys('[e-mail]') 
input_password.send_keys('pera_peric343') 


signinbutton=driver.find_element_by_class_name('_6ltg')
signinbutton.click()

wait.until(expected_conditions.element_to_be_clickable((By.TAG_NAME,'_6ltg')))

errormessage= driver.find_element_by_class_name("_9ay7")



assert errormessage.text =="The email you entered isn’t connected to an account. "

driver.quit() 

can some one help

why eror

[clever needle]

Hello, does anyone know if its good practice to save images as direct files on my website's file system? I was wondering whether it was better to hash, then store inside of a DB rather than the aforementioned method

[vestal hound]

if you hashed the file, how would you get it back

[clever needle]

Sha1 or MD5

idk I saw something on github about hasing the files for security, but ppl seemed to be okay with it

[vestal hound]

uh

hold up

so you store only the hash?

[clever needle]

well no but could hashing be better than other alternatives like base64

encoding

[vestal hound]

but

I don't get it

why do you want to store the hash at all?

like

can you help me understand what you think the purpose of hashing is

[clever needle]

security and ease of change ig

[vestal hound]

ease of change?

how does hashing add to security?

[clever needle]

isnt it better to store hashed instead of raw?

[vestal hound]

why do you say that?

[clever needle]

also isnt there something about seeing if someone has messed with it, like a hacker; like you can tell

[vestal hound]

I feel like that stems from a fundamental misunderstanding of what hashing does for you

if you don't mind me saying so

[clever needle]

i dont mind at all. im still learning about how cryptography stuff works

[vestal hound]

okay, so

maybe I can explain

in general, you don't store passwords in plaintext (unhashed)

instead, you store their hashes (with some modifications that I can go into later if you want)

then

when the user sends their password over

your app hashes it and compares it with what's in the database

this ensures that even if your database was compromised

the attacker wouldn't have access to the other accounts

[clever needle]

ah

[vestal hound]

since you can't get back the plaintext from a hash (assuming the hash is good)

so, not MD5, which is broken

[clever needle]

so it would be impractical for files to be hashed?

[vestal hound]

that's one use of hashing.

another use is

[vestal hound]

no, not at all

I'm coming to that

you may see when you download software

that the providers also state the expected hash

of whatever you're downloading

this is so that post-download

you can hash the program's files

and compare with the expected hash

and if they match

you know with very high probability that nobody intercepted and tampered with your download, or it just didn't get corrupted over the wire

[clever needle]

oh gotcha

so what do you think that I should do instead of hashing?

im finding mixed results on onlines searches

[vestal hound]

what is the purpose

of storing those images?

just to display to users?

[clever needle]

yup

[vestal hound]

you can just store them

[clever needle]

pretty mich

[vestal hound]

on whatever file storage system you have available to you

what are you using?

like what web framework

[clever needle]

flask

[vestal hound]

hm

I don't know how Flask handles these things

there's probably an addon for this

but in general

you want to have a layer of indirection between your request handling code and your dynamic media management code

do you know what that means

[clever needle]

no lol

ill google it tho

[vestal hound]

okay

basically

imagine a situation

where you're storing files locally

i.e. on the computer that also runs your Flask server

right?

now say whatever you're developing blows up

and you want to scale

so now you're running your app on 10 different servers

each of which is storing user data on its local filesystem

imagine if a user happens to connect to server 1

stores some files there

and later on on a different computer

they connect to server 4

and now their files are, from their perspective, gone

ideally

you build some sort of abstraction around fetching files and store them externally on, like, Amazon S3

[clever needle]

hmm okay ill keep that in mind

much thanks though for the help

[vestal hound]

yw 👋 atb!

[glad creek]

Hello folks, I would like some suggestions
I want to build a webapp in which I want to compare various cryptocurrencies prices from different exchange services and than recommend the user to buy the cryptocurrency from exchange service A instead of B.
The issue am having is should I use the API's from these exchange services or should I web scrape it?

[calm plume]

If there's an API, always use the API

If there's not, check the robots.txt and terms of service to see if you can web scrape

[shadow vine]

Great explanation, thanks 🙏

[dusk sonnet]

Hi, how can i get the first value of a button?
if i have the following values for a button

<button type="submit" name="home" class="button" value="{{ matches[1][0]['name'] }} {{ matches[1][1]['name'] }} {{ matches[0]['start_date'] }} {{ matches[1][0]['price'] }}">{{ matches[1][0]['name'] }}<br> <b>{{ matches[1][0]['price'] }}</b></button>

how can i only get {{ matches[1][0]['name'] }}

the current output is like this Everton West Ham United 2021-10-17

i wanna be able to only get for example "everton"

[trim wolf]

Hey Everyone!! I want to add Custom Cursor to my Django Website! How can I do so...?

[civic crater]

Here's a good article for it
you can read it
https://www.digitalocean.com/community/tutorials/css-cursor-property

[dusty moon]

?

[trim wolf]

thanks

[civic crater]

wlcm

[peak scaffold]

Hello~

[native tide]

why i am getting this error in django

BASE_DIR = Path(__file__).resolve().parent.parent

SECRET_KEY = 'django-insecure-2e(@-ilm2ph7sx34c-0^!o4bcjt2#fx^j=l(m$ey@aqe823q62'

DEBUG = False

ALLOWED_HOSTS = ['labwebsitetest.herokuapp.com','127.0.0.1:8000']



INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'whitenoise.runserver_nostatic',
    'django.contrib.staticfiles',
    'lab.apps.LabConfig',
    
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'website.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]
``` settings.py file

WSGI_APPLICATION = 'website.wsgi.application'


DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'


STATIC_ROOT = os.path.join(BASE_DIR,'static')
STATIC_URL = '/static/'

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

[jaunty kelp]

hey i wondered that flask servers are not for production deployment. But all my code is now written with Flask, so is there a way to turn this into a webserver which you can use for production deployment and which is very simple? and so that i have not to completly overwrite my code?^^

[civic crater]

Evry thing is fine ig
try changing the debug to true and figure out the issue

[native tide]

ok

[native tide]

when i do debug=false and run locally the site is working perfectly fine but when i deploy in heroku with debug=false I am getting this error @civic crater

[cerulean badge]

(context django) does doing queryset[:n]
query all rows that queryset requires or the only first n?

[fickle garnet]

flask -> wsgi -> nginx

[civic crater]

That kinda depends
There are some special operators in css like > to do that.

[dusty moon]

So I can have an animation when I click on a button rather then hover?

[fickle garnet]

you can do whatever you wnt on the back end

[civic crater]

yes

[dusty moon]

How?

[civic crater]

there is an example

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
    <style>
        .btn:hover ~ .change{
            background: red;
        }
    </style>
</head>
<body>
    <button class="btn">Hover</button>
    <button class="change">I m going to Change</button>
</body>
</html>

note the tilda(~) used in css

This is also possible
.btn:hover + .change

[civic crater]

did you get it?

[dusty moon]

The + doesn't mean elements that come after?

[civic crater]

ok i m not too sure but
+ they r next to each other
~ they r anywhere in the document
> they r inside the element

[dusty moon]

Yeah so what do they have to do with transitions?

[civic crater]

just check this now they will have transition

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
    <style>
        .btn:hover + .change{
            transition: .5s;
            background: red;
        }
    </style>
</head>
<body>
    <button class="btn">Hover</button>
    <button class="change">I m going to Change</button>
</body>
</html>

[civic crater]

so sorry i just didn't got what you were trying to say
you can use :active for this
i thought you r asking that how to effect a element by on hovering a different element.

[dusty moon]

Yes. How can I effect an element with a transition by clicking on it instead of just hovering on it? Can I specify a transition for each state of an element?

[civic crater]

yes you can
for clicking you can use :active

[dusty moon]

Yes but how can I tell transition to effect the element with :active instead of :hover?

[civic crater]

Is this what you want

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
    <style>
        .btn{
            height: 100px;
            width: 100px;
            background: yellow;
            transition: .5s;
        }
        .btn:active{
            background: red;
        }
    </style>
</head>
<body>
    <div class="btn">Hello There</div>
</body>
</html>

[dusty moon]

Yes. But if have a :hover and an :active? How can I be specific?

[civic crater]

sorry But i cant get what you are trying to say

[dusty moon]

Like keyframes where you can bind it to different elements at different states.

[civic crater]

sorry but i can't get it, any example??

[dusty moon]

I'm not home now... Give me an hour.

[civic crater]

i am no available you can dm me tomorrow

[dusty moon]

K

[orchid olive]

in flask, how can i send an empty parameter?

definition:
@option.route("/<Option>", methods=['GET','POST']
def SetOption(Option):
print(Option)

call:
return redirect(url_for("option.SetOption",Option="")

if Option = "" flask will not find a match and triggers error 400

second call, this will works
return redirect(url_for("option.SetOption",Option="x")

how can i send a empty Option?

[orchid olive]

i solve it, thanks

[cerulean badge]

is the django-ajax-select docs outdated? i am finding it hard to follow
any better package?

[jaunty kelp]

so the code can stay the same (even if it is with flask)? I just have to change the method the server is going up?

[broken harness]

with Django, how do I get my website to appear? I have it at the point where my website says "IT WORKS!" but the actual website isn't loading. What do I need to do?

[dense slate]

In Django+Graphene, my ArrayField looks like ["{'key': 'value'}"] but when I print the arrayfield in a loop, each element is {'key':'value}.

When I return this via graphql to my React front-end, each dict is instead a string so something like "{'key':'value'}". Is there some way to return these as actual dicts? I can't simply parse it because they are returned with double-quotes.

[fickle garnet]

you can make anything insecure

but yea, your flask code is okay so long as its not inviting trouble

think about things like old school SQL injection

[proven barn]

Hello guys

So I'm working on a django web application. I wanted to know how can I make a random route on button click. Example I click a html button and it redirects me to a url which is not defined in urls.py but still is a valid page.

See now example I click a button, and the randomly generated url is /kljnsdfkjlnoasdjf

I need django to register that url on the go

rather than me going and routing the url manually

[lilac solar]

@proven barn Have you tried using a variable for the whole randomly generated url? something like path('/<slug:key>', ...) this would go to a single view from which you can decide what to do with it?

[glacial yoke]

Hey, so I've uploaded my django site to a server, and set everything up with apache, but for some reason my server just can't see static files.
I've tried everything, it just doesn't seem to work, at all
And before you say anything, yes I have setup the config files and etc., they all point towards my static folder which is situated like this:
/var/www/html/mysite/mysite/static
Someone, help me, please

[carmine cipher]

Hello guys!I want to start a project on visual studio code using html ,css,JavaScript,nodejs,Git . Can someone explain to me what path should follow on this IDE to get there?

[static stone]

which port i can host my app

[static stone]

is there free hosting servers?

[boreal garden]

So I have created a sidebar with django, the only issue is that it overlaps the text on the pages so you can't really see the words. Here is the CSS I wrote and is there any way to fix this problem?

   .sidenav {
            height: 100%;
            width: 160px;
            position: fixed;
            z-index: 1; 
            top: 0;
            left: 0;
            background-color: #111; 
            overflow-x: hidden; 
            padding-top: 20px; 
        }

        .sidenav a { 
            padding: 6px 8px 6px 16px;
            text-decoration: none;
            font-size: 25px; 
            color: #818181; 
            display: block;

        }


        .sidenav a:hover{  
            color: #f1f1f1; 
        }


        .main{
            margin-left: 160px;
            padding: 0px 16px;
        }

[weak mango]

Hello, I am trying to host my flask web application but I can't get it to work.

Can someone experience with hosting try to host it for me and see if it works for you?
I am thinking it's maybe problem with my code but it runs totally fine on my local machine.

[crisp marsh]

Hey everyone i just needed a suggestion regarding my website http://virathshuklla.com/
That is it good enough as a portfolio website or not??

[drowsy mist]

Hello everyone, I have a question. What requirements do I need to deploy an app with flask and jinja? 🤔

[clever needle]

where r u hosting it

[night tapir]

Hey, I am thinking about learning python to build a website for a business idea and im wondering what the max i can do (web development wise) by using only python. Is it possible to get a full website up and running using only python? thanks.

[calm plume]

You can never do it with "only" python. You'll need HTML and CSS, and probably some JS too. But the whole backend? Absolutely.

[night tapir]

ok thanks, and what exactly would you mean by front end? is that just visuals and such? could i do the whole website with like python and somthing like wix? or would would I have to learn all those languages?

[calm plume]

I doubt you can use Python with Wix

And frontend is just the user facing side, the buttons, the links, the stuff that looks pretty

[night tapir]

ok yea i got you. theoretically if some site builder like wix did work would python do you think i could build the whole site with only those 2?

[calm plume]

I doubt it. No site builder will ever get you the level of customization you need.

[clever needle]

How do people usually write good CSS code? Is there like a specific tool that people use? e.g side by side preview type thing

[night tapir]

alright, i understand. im just afraid of the fact that it will take me years to learn all i need for 1 project. is there any single language i could use for front end?

[calm plume]

You need HTML and CSS, although you could learn the basics in even a week, and JS isn't mandatory, at least to start, but no, there's no "single language" you could use.

[night tapir]

alright thanks alot. and to finish it off do you have any suggestions to leaning those languages fast and efficiently?

[calm plume]

The MDN docs for HTML and CSS are pretty good

[night tapir]

kk. tysm

[proven barn]

Oh I haven't tried

Is it possible if you can help me with an example so I can understand it better?

[tepid lark]

check out htmx for basic interactivity

[tepid lark]

PyQt with wasm if you're a insane person

[autumn birch]

wsgi flask apache2 ubuntu
Internal Server Error

ModuleNotFoundError: No module named 'init',...```

Is it correct to put init.py and app.wsgi in same folder? 

app.wsgi```py
from init import app as application
import sys
sys.path.insert(0, '/var/www/html/')```

init.py```py
from flask import Flask, render_template
from logging import FileHandler,WARNING
app = Flask(__name__, template_folder = 'template')
@app.route('/')
def hs():
    return render_template('index.html')
file_handler = FileHandler('errorlog.txt')
file_handler.setLevel(WARNING)```

apache2 conf
```<VirtualHost *:80>
ServerName www.example.com

ServerAdmin webmaster@localhost

WSGIScriptAlias / /var/www/html/app.wsgi
<Directory /var/www/html>
Order allow,deny
Allow from all
</Directory>```

[lapis stratus]

Hi, I have an error message of the ImportError I've pulled a django project from github but after I activated the env ,installed packages using python -m pip install -r requirements.txt and do python manage.py makemigrations it says that ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment? is there anyone encounter this?

[gentle ingot]

Im trying to dynamically change the background using flask based on what is selected from a dict. Can anyone help? Ive tried this background-image: url("{{url_for('static', filename='/img/{{holiday}}.jpg')}}");

[tepid lark]

You're trying to import from a top level module named init there. Try .init instead.

[native tide]

I am getting the result here <b><span id="smiles_container2"></span></b> and i want to get the out put in

 <input type="text" placeholder="Enter the Solute Molecule here" name="solute" id="smiles_container"><br> <br>
```                                                                how can i do this

[tepid lark]

Are you using a virtual env?

[lapis stratus]

Yes I'm using env

tried to pip install Django but already satisfied

checked the pip freeze as well can see the lib listed on it

[umbral orbit]

Are you sure env activate when you installed package? Try env activate and then install package again

[mild matrix]

Do we need to learn js

Or python can do everything

I want to use python and it's libraries and MySQL only

[gentle ingot]

Can i use a variable for css? I want my background to change colors based on what webpage the user is on

[regal fossil]

hi there I was trying to extend user model so user can register with email instead of password but am getting error when i try to create superuser
here I asked a question of stackoverflow please look at this.
https://stackoverflow.com/questions/69611971/valueerror-field-id-expected-a-number-but-got-demogmail-com

[regal fossil]

it can be done using javascript

[lilac solar]

This part of the django tutorial covers this fairly well. They are using IDs but you can alter the URL to accept strings into the view: https://docs.djangoproject.com/en/3.2/intro/tutorial03/#writing-more-views

[proven barn]

Yup got it

Thanks!

[hoary brook]

I am working on a Flask project but I am struggling with setting up the relationships between my models. I am getting an error saying I can't use multiple foreign key paths to link my tables. Do I need to use a join table for this and if so, how would I go about setting that up?
Below is a diagram of what relationship I am trying to accomplish. Any help is greatly appreciated, feel free to @ me when you answer.

[raw compass]

are you using sql alchemy with flask? flask unlike django doesn't have its own ORM though sql alchemy is common with flask.

[hoary brook]

I should have specified. I'm using SQLalchemy, yes.

My models are set up, it's just the relationships I am struggling with since it's not just a single link, but multiple e.g. between User and Project.

Before I was using a workaround with a helped function that would store the ID of the current project as an integer in my User model, but that means I have to do a lookup my ID of all my Projects to get the right one if I actually want to get the data stored inside.

[raw compass]

whats the definition of a current project. Can a user only be issued with 1 project at a time

[hoary brook]

The current project is the project the frontend currently displays. The user selects a project in their projects page and the dashboard, kanban board etc. will show only the data from that project.

[raw compass]

Do you want to share your models?

[native tide]

yes. https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties

[hoary brook]

Do you mean post them here? Sure

class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(50), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)
    password = db.Column(db.String(50), nullable=False)
    current_project_id = db.Column(db.Integer, nullable=False, default=0)
    projects = db.relationship('Project', backref='owner', lazy=True)

    def __repr__(self):
        return f"User('{self.username}', '{self.email}')"
        

class Project(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100), nullable=False)
    description = db.Column(db.String(300), nullable=False)
    owner_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    issues = db.relationship('Issue', backref='parent_project', lazy=True)
    kanban_cards = db.relationship('KanbanCard', backref='parent_project', lazy=True)

    def __repr__(self):
        return f"Project('{self.title}')"


class Issue(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100), nullable=False)
    date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    status = db.Column(db.String(50), nullable=False, default='New')
    parent_project_id = db.Column(db.Integer, db.ForeignKey('project.id'), nullable=False)

    def __repr__(self):
        return f"Issue('{self.title}', Parent project ID: '{self.parent_project_id}')"```

As you can see I currently have my workaround in place with current_project being a regular int instead of a reference to the actual current project

[native tide]

you don't have any hashtables. m2m tables

i..e project_issue

[hoary brook]

I am very new to using databases, I've only had to deal with the regular o2m relationship before

[native tide]

user_project

ok. its cool

often you need another table. with the id of each record in a 3rd table to keep many to many relationships

user_project

user_id, project_id

[hoary brook]

Is that the join table? I heard about it but I'm unsure how to properly implement it

[native tide]

then you can use sqlalchemy to backref them

so if you storing one relationship. you just need 1 id. so you can store it on the same table as a foriegn id.

but if you need a list of tihngs. then you often want another table

that is just the id of the 2 things you want to relate

it takes years to get your head around it if you're not natural at it. and due to different ORMs etc you can get confused. also if you don't do it for a year you forget a lot

but it's just a look up table

[hoary brook]

So do I have to do something like this?

user_projects = db.Table(
db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False),
db.Column(db.Integer, db.ForeignKey('project.id'), nullable=False)
)```

[native tide]

yes

then somethign like this

roles = db.relationship('Role', secondary=roles_users, backref=db.backref('users'), lazy='dynamic', cascade="all")

in the model

[hoary brook]

I don't really understand that last part to be honest

[native tide]

so my model. need to have teh relationship plumbed in

class User(db.Model, UserMixin):

[hoary brook]

What does the Role stand for?

[native tide]

projects = db.relationship('Projects', secondary=user_projects, backref=db.backref('users'), lazy='dynamic', cascade="all")

sorry i was pasting from my own model as example. that would be more like it

[hoary brook]

Ah, okay. And cascade deletes the projects when the user is deleted?

[native tide]

only if you tell it to

cascade="all,delete"

so dependso n the relationship

and if you want it to

i.e. you might have load sof user notificatoni setc and shit

[hoary brook]

I understand. So, with this table does every project only have one owner, or does it have multiple now?

[native tide]

so if that user leaves. delete their crap

the projects_owner table can do many 2 many

and you have bound the relationship with the ORM to your model

so it will now fetch the records auto

wihout you having to do code to update etc. or do joins

[hoary brook]

How would I go about making sure a project only has one owner or that a user only has one current_project? (they can have multiple projects, but only one selected at a time)

As far as I understand this only handles Users having Projects

[native tide]

create a owner column on teh project table? with a foreign key to the owner

[hoary brook]

Ah okay, so this is where the FK comes in.. Got it.

[native tide]

ye think about the relation first

then do either a mapping table or whatever they are called with an id for each.

or just do a column with a key you can join on

[hoary brook]

And when I want to limit the m2m table to o2m, I use the uselist=False parameter?

[native tide]

to be honest. understanding that. is the only thing that separates a front end dev from a back end one.

[hoary brook]

Well, I'm really thankful you helped me this much

I feel like I have a basic understanding now and can maybe do some research on my own now that I know the general idea

[native tide]

ye. it will set you apart frmo 75% of other devs. and its relatively simple concept

[hoary brook]

I just wanted to combine creative frontend stuff with my previous Python knowledge, so I thought I should give it a try

[proven barn]

Hello guys

So I am unable to access the static files. The thing is that when I have direct routes, example- https://website.com/first/ I am able to fetch the static files. But when I add another route before first example- https://website.com/second/first/ then the static files are not leaded. Why is that so? And how can I fix it?

[lyric trench]

anyone that can help with flask just to send an email attachment with the help of gmail api

[proven barn]

Any idea guys?

It's a django framework btw

[mellow citrus]

can anyone please help me related to an api project i created in python how can i manage project dependencies.. like in node apps we have a package.json file how we deal in python ????

[frank shoal]

you've got a few options. The vanilla way is using requirements.txt and running pip install -r requirements.txt

I prefer to use poetry since it has a nice cli

[dusty moon]

Weird question: what was used in before JavaScript became a thing?

[frank shoal]

nothing

Actually, Java

[dusty moon]

So Java was used in web development before JavaScript became a thing?

[frank shoal]

it all started in the mossaic browser, then netscape came up with javascript.

[dusty moon]

I see.

Cool.

[crisp marsh]

yeah it was known as live script back then

[frank shoal]

fun fact: Flash uses a subset of javascript called ActionScript. (It's actually ECMA3)

[dusty moon]

So people only used HTML, CSS or CSS wasn't a thing either?

[frank shoal]

https://www.w3.org/Style/CSS20/history.html

[inland oak]

lets see.
CSS date release: December 17, 1996
HTML date release: 1993

Before CSS, nearly all presentational attributes of HTML documents were contained within the HTML markup. All font colors, background styles, element alignments, borders and sizes had to be explicitly described, often repeatedly, within the HTML

heh, between 1993 to 1996 people were forced to write all styling parameters only directly to html ;b

[dusty moon]

So, inline styles were talking about?

[wraith cypress]

Django Roadmap

I've been having trouble finding a good roadmap for python Django developers, any good suggestions?

[pallid lily]

https://www.youtube.com/watch?v=PtQiiknWUcI

[wraith cypress]

it's been the second time I ask for a roadmap and provided a course XD. I need a roadmap to know all of what's needed for a django developer to be known as an expert

I bet every new self taught django dev knows dennis ivy, he's a GOAT on this

https://github.com/kamranahmedse/developer-roadmap so there are those types of roadmaps

very informative and for experts

is there a similar one for django devs?

[autumn birch]

 ImportError: attempted relative import with no known parent package,...```
Renamed `init.py` to `.init.py`, changed 
```py
from init import app as application

to

from .init import app as application

Sorry i am confused, what am I missing?

[frank shoal]

when a from import starts with a ., it means import from the current package

[autumn birch]

Sorry i fixed it
app.wsgi

import sys
sys.path.insert(0, '/var/www/html')
from init import app as application```

the .init is unnessary

But the line order is important

Thank you so much

[rain wasp]

I facing issues while uploading static file in django app on heroku
Anyone please help

[frank shoal]

I used <form autocomplete="off"> on my form. Why are my inputs still auto-filling the username and password? (firefox)

it works in chrome. Sigh

[wintry yew]

How to make website

[frank shoal]

static or otherwise?

[proven barn]

Hello guys

So I am unable to access the static files. The thing is that when I have direct routes, example- https://website.com/first/ I am able to fetch the static files. But when I add another route before first example- https://website.com/second/first/ then the static files are not leaded. Why is that so? And how can I fix it?

[dense slate]

https://tenor.com/view/confused-perplexed-what-gif-10834164

[regal fossil]

I have two forms one for User and one for user Profile
after successful form validation for both form user is created and profile object also created (i am using signal post_save) .

user = register_form.save()
profile_form.instance = user.profile
user.profile = profile_form.save()
user.save()

profile form data is not inserted into profile of user but its get created. when
register_form.save() called.

[drowsy mist]

Hello everyone, I have a question. What requirements do I need to deploy an app with flask and jinja? 🤔

[frank shoal]

I'd use gunicorn

[olive tiger]

this is too generic. There are lots of things involved in the deployment. You need to narrow the scope of the question

[drowsy mist]

Ok for example, in the frontend a production file is created, but in Python one is created too? 🤔

[drowsy mist]

What is gunicorn?

[olive tiger]

what is production file?

[drowsy mist]

In vue or react with a command create a build file.

I do not know if with a page made with flask you can do that.

Sorry my english is not very good 😆

[olive tiger]

no need for flask. there are tons of tutorials on youtube about this

[drowsy mist]

Ok, thanks you

[proven barn]

Hello guys

So I am unable to access the static files. The thing is that when I have direct routes, example- https://website.com/first/ I am able to fetch the static files. But when I add another route before first example- https://website.com/second/first/ then the static files are not leaded. Why is that so? And how can I fix it?

guys any idea with django framework?

[native tide]

Hi

i need some help

const game = {
    elements: {
      progressLabel: document.querySelector("#progresslabel"),
      progress: document.querySelector("progress#file"),
      levelBtn: document.querySelector("#btnLevel")
    },
    level: parseInt(localStorage.getItem("level") ?? 1),
    clicks: parseInt(localStorage.getItem("clicks") ?? 0),
    multiplier: parseInt(localStorage.getItem("multiplier") ?? 1),
    prestige: 0,
    rebirth: 0,
    requiredClicks() {
      return game.level * 250 + game.multiplier * 50;
    },
    nextLevel() {
      return parseInt(game.level + 1);
    },
    updateProgress() {
      game.elements.progress.value = game.clicks;
      game.elements.progress.max = game.requiredClicks();
    },
    levelingEnabled() {
      game.elements.levelBtn.disabled = game.clicks < game.requiredClicks();
    },
    updateStorage() {
      ["level", "clicks", "multiplier"].forEach((key) => localStorage.setItem(key, game[key]));
    },
    buttonFunctions: {
      click() {
        game.clicks += game.multiplier;
        console.log("h")
        game.updateProgress();
        game.levelingEnabled();
      },
      levelUp() {
        console.log("level up");
        ++game.level;
        game.clicks = 0;
        game.updateStorage();
        game.levelingEnabled();
      },
      menu() {
        console.log("menu");
      }
    }
  };
  
  game.elements.progressLabel.textContent = `Progress to Level ${game.nextLevel()}`;
  game.updateProgress();
  
  document.querySelector(".btn-wrap").addEventListener(
    "click",
    (e) => {
      if (!e.target.matches("button, button img")) return;
      const btn =
        e.target.tagName === "BUTTON" ? e.target : e.target.parentElement;
      game.buttonFunctions[btn.dataset.func]();
    },
    { passive: true }
  );
  

okay so

progress.max is not a number (NaN)

game.elements.progressLabel.textContent = Progress to Level ${game.nextLevel()};

its being set there

and it says nan

?

can someone help

[astral pagoda]

flask question

What is profile 'profilepicture' = to in the routes.py example? And in the register function do I need to commit profile picture from the database or is it automatically a commit ?

routes.py in register function
picture = request.files['profilepicture']
models.py`

profilepicture = db.Column(db.LargeBinary, nullable=False, default='default.jpg')

[somber hull]

https://pypi.org/project/wtforms-validators/#Alpha Why can't I use this validator method in my Flask app anymore? It just says:
ImportError: cannot import name 'Alpha' from 'wtforms.validators' (C:\Users\magnus\AppData\Local\Programs\Python\Python39\lib\site-packages\wtforms\validators.py)

I have installed it via pip install wtforms-validators... Might it be outdated?

[halcyon dragon]

Hi anyone know how to make a eccomerce website what language I should use all packages/imports/frameworks I should use or would you send me full video tutorial because I have no clue I’m pretty fluent in most of the big languages JavaScript,python,java are my main ones so any and all tutorials will do if I need to learn a new language I’m happy to do so so please help me out

[cerulean remnant]

look closely, according to https://pypi.org/project/wtforms-validators/#Alpha ,
it should be: from wtforms_validators import Alpha

and not: from wtforms.validators import Alpha

[somber hull]

Yeah buddy I did see that 🙂 It didnt work however 🙂

[cerulean remnant]

are you sure?

[somber hull]

Im gonna try restart my VSCode now and try again

[cerulean remnant]

the error says:

ImportError: cannot** import name 'Alpha' from 'wtforms.validators'** (C:\Users\magnus\AppData\Local\Programs\Python\Python39\lib\site-packages\wtforms\validators.py)

[cerulean remnant]

no hold on

[cerulean remnant]

send the code you have rn

[native tide]

can someone help

[cerulean remnant]

restarting vsc wouldn't help

[quasi atlas]

Why does my <img show red and why does it not work? what mistake am i doing that is not showing? pls any help would be appreciated

[cerulean remnant]

look closely

do you see anything wrong?

[somber hull]

I solved it with using some python code after the sumbit.onvalidation() but looks like reloading VSCode made wtforms_validators work for some reason. Im gonna test it if it works now If i remove my .isalpha() code

[native tide]

i think ik whats wrong

you need

wait

[quasi atlas]

no 😅

[native tide]

a normal img thing is

[quasi atlas]

.

[native tide]

<img />

i think

[cerulean remnant]

umm, you need to send the tag

[native tide]

ending tag

[cerulean remnant]

no, that's not he issue

[quasi atlas]

ahhhh

[native tide]

oh yeah

i see it lol

u need to close the a tag

[cerulean remnant]

it should be```html
<a href="link"> <!-- you are missing the > -->
<img src="link">
</a>

[somber hull]

@cerulean remnant It did work now 🙂 Do you know how I can set the value in the StringField to be '' ?

[quasi atlas]

bro thank you so much 😣 i spent 20 minutes over that silly mistake

[astral pagoda]

Sorry for posting twice but in flask python question I am trying to upload a image from the database

What is profile 'profilepicture' equal to in the routes.py example below? And in the register function do I need to commit profile picture from the database or is it automatically a db.commit ?

routes.py in register function
picture = request.files['profilepicture']
models.py

profilepicture = db.Column(db.LargeBinary, nullable=False, default='default.jpg')

[cerulean remnant]

nope, i have never used wtforms-validators before

i didn't even know it existed

[thorny shadow]

<h1>mother fucker<h1> not working helpppp

[thorny shadow]

this code is sooooooooooo hardddddddddddd

[somber hull]

Alright 🙂

[cerulean remnant]

?

[quasi atlas]

i think he is a troll

[thorny shadow]

code didnt workkkkkkkk

[thorny shadow]

whffffffff

[cerulean remnant]

!ot go ask in an off-topic channel

[lavish prism]

Off-topic channels

There are three off-topic channels:
• #ot0-fear-of-python
• #ot1-this-regex-is-impossible
• #ot2-the-original-pubsta

Their names change randomly every 24 hours, but you can always find them under the OFF-TOPIC/GENERAL category in the channel list.

Please read our off-topic etiquette before participating in conversations.

[quasi atlas]

<h1> mf </h1> what did not work?

[cerulean remnant]

leave him

[thorny shadow]

i am a pro html ik h1 h2 h3 ``h4 h5 h6 h7 i am biggest proooooo

[thorny shadow]

idk

think soooooooo

i need to

youtube

or google

[quasi atlas]

definitely a troll

dont waste my time

[cerulean remnant]

I told you, leave him

[thorny shadow]

what

[thorny shadow]

i am a new in html

[astral pagoda]

Can someone answer my question?

[thorny shadow]

plsssssss

[cerulean remnant]

ye?

[thorny shadow]

yessssssssss

[astral pagoda]

do you want me to post it for the 3rd time

?

[thorny shadow]

ok

[thorny shadow]

i will try it

[astral pagoda]

flask python question I am trying to upload a image

What is profile 'profilepicture' equal to in the routes.py example below? And in the register function do I need to commit profile picture from the database or is it automatically a db.commit ?

routes.py in register function
picture = request.files['profilepicture']
models.py

profilepicture = db.Column(db.LargeBinary, nullable=False, default='default.jpg')

[thorny shadow]

routes.py ?????? python

[astral pagoda]

Its where you keep your routes

[thorny shadow]

i am new

in it

[astral pagoda]

well if you don't know don't anser

[thorny shadow]

loll

[thorny shadow]

you dont know me i am a biggest proooooooo

[cerulean remnant]

you need to commit it ig, otherwise i wouldn't be stored, and
profilepicture is just an image (ig)

[astral pagoda]

followup question brb just need to post a error I am getting

[cerulean remnant]

alr alr

ping me btw

[astral pagoda]

nevermind that is it

[thorny shadow]

from playsound import playsound
playsound('helllo.mp3')
a=(input('type code:'))
if a == 'help':
    print('1 =  google')
    print('2 = text into word')
    print('3 = play song')

else:
    print('type ?Help')
    
a2 = input('type command:')
if a2 == '1':
    a3 = input('type website name:')
    import webbrowser
    webbrowser.open(a3)

else:
    print('wrong statement')

if a2 == '2':
    text=input('type here:')
    from gtts import gTTS
    tts=gTTS(text)
    tts.save('byee.mp3')
    from playsound import playsound
    playsound('byee.mp3')

else:
    print('wrong command')

if a2 == '3':
    from playsound import playsound
    playsound('song.mp3')
    print('playing song.')
    print('playing song..')
    print('playing song...')
    print('playing song....')```

[cerulean remnant]

ohk

[thorny shadow]

<h1>mf<h1/>

[cerulean remnant]

where did you copy it from?

[thorny shadow]

its my code lol

[cerulean remnant]

interesting

alr

[thorny shadow]

if you try it ,it will not work

[cerulean remnant]

sad

[thorny shadow]

i am a py proooooooo

[thorny shadow]

whyyyyyyyyyyyyyyyy

heekki

@kind steppe hiiiiiiiiiiiiii

whoppy

whoopty

f

fuck

!pypi gtts

[lavish prism]

gTTS v2.2.3

gTTS (Google Text-to-Speech), a Python library and CLI tool to interface with Google Translate text-to-speech API

[shy bane]

print('hello i am bot if you want to use my commands type help')
from playsound import playsound
playsound('helllo.mp3')
a=(input('type code:'))
if a == 'help':
print('1 = google')
print('2 = text into word')
print('3 = play song')

else:
print('type ?Help')

a2 = input('type command:')
if a2 == '1':
a3 = input('type website name:')
import webbrowser
webbrowser.open(a3)

elif a2 == '2':
text=input('type here:')
from gtts import gTTS
tts=gTTS(text)
tts.save('byee.mp3')
from playsound import playsound
playsound('byee.mp3')

elif a2 == '3':
from playsound import playsound
playsound('song.mp3')
print('playing song.')
// set time out for audio when end
then print('end')
else :
print ('wrong command')

[thorny shadow]

kyaaaa

[shy bane]

@thorny shadow cool

[thorny shadow]

thanks

[thorny shadow]

but think so it didnt work in your pc

[shy bane]

it's error ?

[thorny shadow]

ik

one min

[loud roost]

Hi, I have a question.
Suppose we want to use face recognition in a mobile application using Python language, what library do we use or how do we link these both together?

[static stone]

what wsgi production free servers can i use?

[frank shoal]

heroku?

that's a host with a free tier.

if you're looking for a production server you can install yourself, gunicorn is my go-to

[dusk sonnet]

Hey i have a question about flask.

Im making a betting simulator web-app where i get upcoming soccer games and results from 2 API's. And after im done my project i will most likely use Heroku to host it. My question is when i do flask run and server is open does the code update? for example when the server is open and lets say a game has finished and the results have come out...does the server automatically update? or do i need to rexecute the code by restarting the server?

[clever needle]

isnt it gathering from the api?

if so all you have to do as the user is refresh the page? as long as the backend code is correct

[dusk sonnet]

ah ok, thanks

[clever needle]

np!

[orchid olive]

is there a way to create a bootstrap navvar with menus accesible by user-rol?
where can i get a simple example?

[clever needle]

w3schools

what is user-rol btw?

[orchid olive]

a menu access by rol,
common user see 1 menu
expert user see 3 menus includin common user rol
admin user see 4 menus
but common user cannot see expert or admin menus

[clever needle]

you need to control that with web templating langs dont you?

[orchid olive]

could be, but ... is it possible by using only 1 template? i really do not like to create 200 templates

got it?

[clever needle]

no like web templating "languages"

like flask, django, etc

[orchid olive]

what are you doing in web-development???

[clever needle]

?

[orchid olive]

python web dev = flask, bootstrap and dyango (and html)

[clever needle]

and?

[orchid olive]

"no like web templating ""languages"" "

[clever needle]

flask is not python

[orchid olive]

what do you mean wiht that?

[clever needle]

google web templating languages

[orchid olive]

this is python channel for flask or django

[clever needle]

flask and django are web templating "languages"

if you dont trust me google it

[orchid olive]

btw, thank for the link, good expamples with bootstrap

that is exactly my point

[clever needle]

So in your back end you can pull the account type, whether it is a common user, expert, etc

[orchid olive]

that is the problem i trying to fix

well, thanks, nice chat, cya later

[clever needle]

then with Jinja (part of flask), you can do
{% if account.type is 'expert' %}
Or something similar to this if you want

like if statements in the HTML code, done by jinja

[orchid olive]

that is in the form, the change i need in in the base

bye man!

[tepid lark]

Do I use Flask or Django.

Or Pyramid. lol. Ultimately I think they're all as capable as each other in good hands, but I'm working with a lot of non crud data sources!

Django has the nicest experience so far, but I've run up against some stuff with our special snowflake requirements.

[native tide]

can anyone send me some reference material for html css and js?

thanks

[dusk portal]

depends

[valid pelican]

Hey guys

How much time would take to learn react js

[native tide]

I want to do this visualization as shown in the figure. as i change the molecules on the left side and on the top it should change the middle showing number iteractively using javascript. I know this can be done using d3.js but can anyone share similar examples

[wintry yew]

How to make a website

I'm new

[native tide]

you can make using JavaScript, HTML and CSS

[wintry yew]

how to make website on Google

[native tide]

use google site. Its free

[wintry yew]

On mobile

[native tide]

What do you want actually? Be clear

[wanton storm]

I think he wants to ask how to display site ongoogle

You can make site either with HTML CSS JS

Or use a framework like React

And then buy a server and domain for webpage

And then pay a monthly fee to host it

[swift elm]

Hey how can I send the request made to a particular endpoint in flask to a list (or) a queue so that I can process and send response one by one.

Goal : Is to build a unique file allocation endpoint will be running windows(don't ask to change to linux its requirement). Where user will hit the endpoint and gets
files. But the file have to be unique one consider all the files are maintained in a single folder. I need some mechanism or tools that can help me in this.

[patent abyss]

hey all. I've finished a django course and have been exploring it more by creating a project of my own. However, it takes me forever to finish things. I keep thinking that what takes me days and weeks could be done by a senior in two hours, and get really discouraged.
I just want to know, is this normal? was that how it was for you when you were new to django? and also, any tips for making me faster?

[pallid lily]

if you see your self finishing things longer than a Senior then i would suggest you to strengthen your self to the fundementals of Python for instance at beginning when we did the calculator project it toke us at least 20 lines of code and if statements to do while if we knew about eval() function we could have done it in less than 10 lines of code

summary of it strong foundation of python language will help you save lots of time and code try vising list of comprehension, lambda, decorators, eval(), compile() etc...

[jovial cloud]

Check out background jobs on Miguel grinberg's blog for queueing tasks and running them in the background
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-xxii-background-jobs

[carmine cipher]

Hello guys!I want to start a project on visual studio code using html ,css,JavaScript,nodejs,Git . Can someone explain to me what path should I follow on this IDE to get there?

[patent abyss]

Thanks for the help! I'll make sure to spend some time brushing up my python knowledge!
One more question: how do you make designing easier? I mean deciding what view should do what and what things should be in the same page and what should be separate? I feel like this is one of the things that I spend too long on, so it would be great if there were resources I could read or things I could practice.

[pallid lily]

as far as i know this is UI/UX field of expertise, as most of interface design befor implementing it to a real project is made in adobe products like adobe XD i think

[patent abyss]

hmmm, but it does affect the back-end too, right?

[pallid lily]

nop

try to copy cat certain platforms with same features you want to create and later on implement your own design to the frontend

[native tide]

hi

i need help

it says NaN

and i get that error

[tropic prism]

i'm not familiar with any of this, but it appears that it might have something to do with game.nextLevel

[tepid lark]

what's the value of requiredClicks() when you're trying to set the progress element?

[native tide]

Hello is this the correct chat if i need help with a data scraping script>

?

[dull isle]

hi im trying to develop some code that sends a request to https://md5hashing.net/hash/sha256/ along with a SHA256 hash. i want it to search through the parsed html and retrieve the "unhashed" value--if it exists.
here is my code: ```py
import requests # !pip install requests
from bs4 import BeautifulSoup as bs4 # !pip install beautifulsoup4
from hashlib import sha256

def checkHash(sha):
url=f"https://md5hashing.net/hash/sha256/{sha}"

hashPage=requests.get(url)
hashSoup=bs4(hashPage.content, "html.parser")

result=hashSoup.find("span", id="decodedValue").text

return result

if name=="main":
sha="cf80cd8aed482d5d1527d7dc72fceff84e6326592848447d2dc0b0e87dfc9a90" # hash of "testing"

print(checkHash(sha))

however, hashSoup's body only contains a script doing some kind of JSON query

<body>
  <script type="text/javascript">
   __meteor_runtime_config__ = JSON.parse(decodeURIComponent("%7B%22meteorRelease%22%3A%22METEOR%401.5.4.2%22%2C%22meteorEnv%22%3A%7B%22NODE_ENV%22%3A%22production%22%2C%22TEST_METADATA%22%3A%22%7B%7D%22%7D%2C%22PUBLIC_SETTINGS%22%3A%7B%22stage%22%3A%22production%22%2C%22secure%22%3Atrue%2C%22ga%22%3A%7B%22id%22%3A%22UA-46347216-1%22%7D%7D%2C%22ROOT_URL%22%3A%22https%3A%2F%2Fmd5hashing.net%22%2C%22ROOT_URL_PATH_PREFIX%22%3A%22%22%2C%22DDP_DEFAULT_CONNECTION_URL%22%3A%22https%3A%2F%2Fmd5hashing.net%22%2C%22appId%22%3A%221yyb8dxdjzh9kehs7f7%22%2C%22autoupdateVersion%22%3A%2201a99ac41f6328d0b161779bb728ca366cf4223d%22%2C%22autoupdateVersionRefreshable%22%3A%227807a4994675d2b6b87126e81a90597e65f93071%22%2C%22autoupdateVersionCordova%22%3A%22none%22%7D"))
  </script>
  <script src="/86a575c16d520b06dd112d530721e721a820067c.js?meteor_js_resource=true" type="text/javascript">
  </script>
 </body>

please ping me if you know how to either wait for the JSON query to update the page or execute it from Python...

[lilac solar]

When you say design, do you mean visual design or designing your python code to be maintainable & readable?

[gaunt belfry]

Is there anyone who know to make a dashboard with all features and connected to my bot. Please ping me if someone replies

[cerulean vapor]

we do not allow recruitment on this server. Stop.

[open forum]

Recruitment is not allowed on this server, as you've already been told.

You're not going to get another warning.

[native tide]

How can I handle two different domains on one website in the best way? My problem is quite simple and I thought it was easy to solve with a URL redirect until i found out that DNS cannot resolve specific pages of a website. So here is the deal:

1. I have a website running at www.company.com
2. The website has a special product route at www.company.com/product
3. The company just bought www.product.com and wants it redirect to www.company.com/product

Now I thought I could identify the root domain with:

print(flask.request.url_root)  
print(flask.request.headers['Host']) 

And then redirect it to the corresponding route. But now what if a user trys to go to www.product.com/abc? I cannot check for all hundreds of www.company.com routes if the root domain is product.com

There must be an easier way to solve this but i am unable to think of a better way to do this. Any suggestion is appreciated

[gaunt belfry]

Someone please answer me also

[fossil pond]

Hey guys! When I add app_name = 'main' to urls.py I get this error: "Reverse for 'contact' not found. 'contact' is not a valid view function or pattern name."

I need reverses to use my other views which use ListView and DetailView

How do I fix this?

[fossil pond]

Nvm stupid doubt. Lesson to learn: don't blindly follow tutorials because they have different settings applied.

[orchid olive]

could somebody help me with my code?

source bin/activate
export FLASK_APP=test.py
export FLASK_ENV=development
export FLASK_DEBUG=1
flask run --host=0.0.0.0

import os
from app import create_app
app = create_app(os.getenv('FLASK_CONFIG') or 'default')
if name=='name':
app.run(port=2021)

it always runs on port 5000, it ignore command "port=2021"

[orchid olive]

thanks, i just have started the project as usual

[wooden ruin]

did you try flask run --host=0.0.0.0 --port=2021?

[modern pivot]

Hi, flask dev here ? 🙂

[warm igloo]

Like, is a flask dev here, or the Flask dev here?

[modern pivot]

It doesn't matter as long as someone can help me x)

So, I start a Flask project :

  from flask import Flask

app = Flask(__name__)
if __name__ == "__main__":
    app.run(
        debug=True,
        port=3000
    )

I don't know how to link the app.run () and routes in /controllers/XXX

my __init__.py

from . import controllers

[pallid lily]

from controllers import *

or from controllers.dbscan import thing

[modern pivot]

It doesn't work

My home.py

from flask import render_template

from main import app

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

Error : 127.0.0.1 - - [19/Oct/2021 23:10:10] "GET / HTTP/1.1" 404 -

[native tide]

does anyone know why this wont autoplay html <audio src="./song.mp3" autoplay="autoplay" loop="loop"></audio>

[indigo kettle]

Note: Chromium browsers do not allow autoplay in most cases. However, muted autoplay is always allowed.

[twilit needle]

guys how do you do server side redis sessions with fastapi?

[night tapir]

Hey guys, I was wondering about the web service "webflow". I just found out that you can export the website you build to only code and im wondering if I could just build a website through a website builder, export the code and use that code as my front end website code to keep me from having to learn JS,HTML,CSS,etc

[indigo kettle]

kind of?

If you're using something like django, you want to display data from a database and to do that you need to understand how the templating engine works and you need to go in and edit the html and add those things in

You'll probably need to use forms and so you'll want to send forms to the frontend as well

[night tapir]

im really stuck lol I have a really good idea for a WebApp business but as far as coding I only know a bit of python. And I dont have thousands to pay somone to do it for me

[indigo kettle]

trying to build a website without knowing the basics of html,js,css sounds very hard

I wouldn't bet on it

[night tapir]

Cause like, Ive build plenty of websites with wix and such and its not a problem... I just wounder how it will work with somthing like this and what all the downsides are

[indigo kettle]

I think the time spent learning web languages would be a much better time investment than trying to figure out how to frankenstein a wix site code output into a python backend

html/css are very simple

[night tapir]

Fair enough. im just worried it will take 10 years for me to master them to build anything decent. also would it be easier to just learn like reactJS instead or?

[indigo kettle]

Until you want to get super fancy and build apple's landing page or something

That is an understandable worry

It will not take you that long

reactjs is harder

but if you want to build something dynamic and you need that single page app feeling then it may be worthwhile doing that as well

[night tapir]

Would it really make a difference like that? And thanks alot for the help. what would you recommend learning first? cause even python at best i know like 35% of the language.

[indigo kettle]

I've built sites without a frontend framework and it can get messy pretty fast. Using something like react or vue makes things much more manageable

I think you should just start building something with django and you'll be forced to learn on the way

[night tapir]

alright so finish learning python and build some sort of backend with django and go from there?

[indigo kettle]

I think that sounds just fine. Follow some django tutorials and then build something that you want to build

[night tapir]

Awesome thank you so much!

[indigo kettle]

you're welcome!

[strange parrot]

What can I use for reading dynamic websites that will do it fast?. With selenium I have to wait for 2 seconds to load me 50 elements

[native tide]

when i right click to open with live server no image comes

can anyone help

[swift elm]

facing difficulty in establishing connection with redis queue server running in wsl with local python script

any idea about that ?

its running in windows

[jovial cloud]

What's the error message? Are you running the redis in wsl?

[chilly falcon]

code

class OrderItemModelSerializer(serializers.ModelSerializer):
    total = serializers.SerializerMethodField('get_total')
    
    class Meta:
        model = OrderItem
        fields = ('id','order_quantity','medicine_id','order_id','rate','total')
    
    def get_total(self,obj):
        return self.order_quantity*self.rate

error

can anyone help

it has order_quantity in it but it says there is no other quanotity

quantity*

[lilac solar]

@chilly falcon what does the OrderItem model look like?

[swift elm]

yes I'm running redis in wsl but

import rq
queue = rq.Queue('file-allocation-process', connection=Redis.from_url('redis://'))
job = queue.enqueue('common.queue_task.perform_task')
print(job.get_id())```

when i run this program I'm getting 

`redis.exceptions.ConnectionError: Error 10061 connecting to None:6379. No connection could be made because the target machine actively refused it.`

can't we connect to program running in wsl ?

[chilly falcon]

I have found solution mistake in serializer that instead of obj.orderquantity i was using self.quantity

[jovial cloud]

First, both your flask app and the redis should be running in wsl(multiple terminals/shells). Also, you should see a bunch of messages when you start your redis service

[somber hull]

Anyone knows if Flask-Login is still legit to use? Or are there better alternatives for handling user auth in Flask nowadays? 🙂

[patent abyss]

I meant it being maintainable and readable, but also deciding where to do what. for example lets say I have a page where people can log some symptoms to track them, but all symptoms are in categories. would it be better to have one form per category in a separate page, or just have them all in one place? These sort of questions are what I mean...I think part of it also comes from the fact that I dont know frontend so I dont know the possibilities there are....but Im not sure if that is all

[gaunt belfry]

Is there anyone in this servers who can make a dashboard for bot

Please ping me if anyone replies

[limpid pivot]

i have some query on selenium can anyone help?

[swift elm]

Got it we can run the redis in wsl and able to connect from local windows the issues is with wsl firewall which actively refuse the connection to this port. Anyway thanks for your guidance.

[native tide]

Hi I am having problems with importing stuff on my Flask project, this is the error shown:

Traceback (most recent call last):
  File "C:\Users\Backup\Desktop\furkanvas\py-env\backend\server.py", line 1, in <module>
    from app import app, db
  File "C:\Users\Backup\Desktop\furkanvas\py-env\backend\app\__init__.py", line 5, in <module>
    from app.api.routes import User
  File "C:\Users\Backup\Desktop\furkanvas\py-env\backend\app\api\routes.py", line 4, in <module>
    from app.models import Users, Profile
  File "C:\Users\Backup\Desktop\furkanvas\py-env\backend\app\models.py", line 1, in <module>
    from app import db
ImportError: cannot import name 'db' from partially initialized module 'app' (most likely due to a circular import) (C:\Users\Backup\Desktop\furkanvas\py-env\backend\app\__init__.py)

can anyone help me with this? i can provide some code if requested

[lilac solar]

You have a circular import, in that you are trying to import the db thing from app before app has finished initialising it's imports. The typical way to solve this is to move one of the relevant imports inside a function, with Flask from what I remember this is typically in your server.py but I may be wrong

[native tide]

that worked thanks

Hello

when i do this

why is their a gap?

can anyone help me fix?

[lilac solar]

Broadly sounds like you want to be looking into general software design patterns and architectures and how they implemented in Python/Django. In terms of Django I prefer defaulting to class based views and tend towards and API based approach which allows for good separation of concerns. If your part of a team then get your code reviewed regularly, otherwise try to think about coming back to any particular code after a period of time (3-6 months) or if you had to hand the code off to someone else.

[native tide]

can anyone help me with this?

[native tide]

anyone have any ideas

on how to fix

it

[native tide]

margin-top: 0 px;

[spiral blaze]

is a <div> just to contain stuff inside? like a <header>

[native tide]

that did not work

we dont see the whole code

ok wait

[lavish prism]

:incoming_envelope: :ok_hand: applied mute to @native tide until <t:1634745451:f> (9 minutes and 59 seconds) (reason: newlines rule: sent 110 newlines in 10s).

[daring gust]

!unmute 899531995191853106

[lavish prism]

:incoming_envelope: :ok_hand: pardoned infraction mute for @native tide.

[daring gust]

Sorry, use https://paste.pythondiscord.com

[spiral blaze]

rip

[native tide]

thanks!

https://paste.pythondiscord.com/azizocupen.css

@native tide any ideas now?

can you give me the nav part aswell

of html

ok

[slate smelt]

hii

[native tide]

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

[slate smelt]

how host

my site

for free

[pallid lily]

why do we create class inside a class?

[slate smelt]

why do you think

[red ice]

Is there any way to handle errors in Django forms? If there is a problem while user is sign up(custom Sign Up Form) to just display an error box rather than displaying the original form

[slate smelt]

what do you mean

[toxic jungle]

im not sure if this is the right channel or not, but I've got a question.
I want to able to control the contrast in a web picture:
lets say there is this site that has a picture map https://www.legacysurvey.org/viewer#IC 2989
I can make a picture with specific coordinates (dec, ra) like so https://www.legacysurvey.org/viewer/jpeg-cutout?ra=0.8642482&dec=27.6547253&layer=ls-dr9

what I want to know is: is it possible to add a something to the url that controls the contrast of the pic? something like &contrast=1

[indigo kettle]

no

you can go into dev tools and add a css filter

[toxic jungle]

oh nice! my follow up question would be is it possible to produce a url with this filter and contrast already set it? is it possible to save this setting is my question, instead of adding it each time?

[indigo kettle]

not really

what you can do is get a web (chrome/firefox whatever) extension which allows you to define your own stylesheets

then you can target that img tag and add the filter yourself

so you'd have to create a stylesheet which targets legacysurvey.org/viewer/jpeg-cutout* and ```
img {
filter: constrast(1.5);
}

but this only sets that contrast for you, if this custom stylesheet is set up

a url which has this preset is only possible if the website frontend/backend is expecting a contrast param and actually does something with it

[signal bronze]

you could add a slider for the amount of contrast

actually are sliders even a thing in html? You can create a range of numbers then selecting the input amount

[indigo kettle]

there already is a slider

[toxic jungle]

hmm, maybe if I elaborate it would help:
I have this google docs excel table which draws pics from different sites (legacy is one of them for example) using a url command.
is there any way somehow to make it draw a picture with a specific requested contrast?
If I understand what you are saying, its something that needs to be done for every picture every time I want to open it?
I have around 4000 pictures in the table, and I want to get the images to the table with a certain contrast if possible

[indigo kettle]

maybe google docs has an image filter option

let's see

[toxic jungle]

ty so much btw, my knowledge is very poor in this area

[indigo kettle]

np!

unfortunately I don't see a way to do this through google sheets

[toxic jungle]

yea I didnt think they would have such a specific setting 😄 thank you for your help!

[indigo kettle]

You can try to find a site that is able to take an image url / contrast as query params and return a new image

or write a script which retrieves the images and downloads them -> applies contrast

[toxic jungle]

yea, this seems to be the alternative solution, was hoping I could avoid that, seems complicated 😬

[proper hinge]

I want to build an CRUD API with DRF which has some sort of auth that only allows users to operate on resources they own. What's a good solution for this?

I have been looking into oauth2, but I find the flow to be confusing. I need to register my app and I get a client ID & secret. For users to get their tokens, they'll need to provide they user and pass in addition to this client ID and secret, which seems awkward. I saw a solution which wraps the token endpoints and auto-injects the client ID and secret, but this seems redundant.

I have a feeling oauth2 may not be the right tool for the job

[dense slate]

I'm guessing there is a django-jwt-drf library of some kind that would handle tokens that way.

There is one for graphql

[proper hinge]

JWT seems simpler. If I understand correctly, a user can request a token by only providing their user/password. Then they can pass that token to protected API endpoints. No need for a client id/secret.

[cedar cove]

Is there a reason why I can request.user and get my user info but on others I can't?

I'm on the same session

Ah, nvm

I'm dumb

[indigo kettle]

@proper hinge does session authentication not work for you?

[proper hinge]

Not sure. I thought that was mainly used for websites. I am building an API. No frontend at all.

I got JWT set up and I'm gonna be trying it out, but I think it is more in line with what I was looking for.

[indigo kettle]

it sounds like sessions may not work for you. Great! good luck

[proper hinge]

Thanks

[strong wren]

Hey everyone, I have small question regarding routing for Flask. I have a dynamic route @app.route('/v1/<parameter>') but I want know what is the best way to constrain parameter to a set of values.

[proper hinge]

You can use one of the built-in converters e.g. <int:parameter> or define a custom one if you really need some bespoke validation

It's covered here https://flask.palletsprojects.com/en/2.0.x/api/#url-route-registrations

[strong wren]

I see, I just have a set of valid routes i.e [param1, param2, ...] and I just want to basically check if that parameter is in that set

[proper hinge]

Does it not make sense for you to just define a separate route for each option?

The way you phrased it makes it sound like they represent different routes rather than just being a parameter

[strong wren]

To be more specific

It accepts a parameter in which it grabs data and runs an algorithm on it. i.e if I have country called canada it will run the data on canada

However the list of routes is different and volatile which switches around quite a lot

[proper hinge]

If it's volatile then you should probably just perform the validation within the function

If it was more static, you could do @app.route('/v1/<any(option1, option2, option3):parameter>')

[strong wren]

Hmm maybe volatile isnt the right word, it doesnt just disappear randomly but more so it can change by deployment

The list will be static for each ran deployment, it will auto-generate the required list on each deployment

[proper hinge]

It is just a string, so I suppose you could format it with whatever values you generated

[strong wren]

Hmmm

Is this possible to do in the converter you mentioned

I would also like to give a specific message for invalid routes too

i.e app.route('/v1/<param>/<resource>/' There is no <resource> that exists for <param>. Rather than a generic route error

[proper hinge]

Yeah you could use the any converter or define your own. I think it's like this, though I am not sure if the values need to be quoted or not.

# this list is generated during deployment
# you could e.g. read a file instead and then parse it into a list
choices = ",".join(["choice1", "choice2"])

@app.route(f"/v1/<any({choices}):parameter>")
def foo(parameter):
  ...

[proper hinge]

For custom error handling, look into the @app.errorhandler decorator

[strong wren]

I see, thanks for your input Mark. I greatly appreciate it.

[wicked nest]

I am in need of some help serializing data with DRF and ModelSerializer. When serializing my foreign keys it is returning the ids and I cannot get it to return the value

[proper hinge]

How have you defined your serializer?

There are several ways to represent the value of an FK.

[wicked nest]

`class CadetModelSerializer(serializers.ModelSerializer):

class Meta:
    model = Student
    fields = '__all__'`

[proper hinge]

Which field is an FK?

[wicked nest]

In the models say it looks like
class Student(models.Model): class = models.ForeignKey( Class, on_delete=models.CASCADE, default=None )

It returns the ID (PK) of the class instead of the class name

I have tried multiple SO solutions and cannot figure it out

[proper hinge]

You need to define a class attribute on your cadet serializer class = serializers.SlugRelatedField(slug_field="name"). I'm assuming "name" is the the name of the field containing the class's name.

You probably also want read_only=True in the slug parameters

[wicked nest]

This is the error I keep consistently getting __init__() takes 1 positional argument but 3 were given

[proper hinge]

Can you show what your serializer looks like now?

[wicked nest]

`class StudentModelSerializer(serializers.ModelSerializer):
_class = serializers.SlugRelatedField(slug_field="name", read_only=True)

class Meta:
    model = Student
    fields = "__all__"`

[proper hinge]

Oh yeah, class is a keyword in Python...

That's awkward. I'm sure there is an alternate way to specify this but I don't remember.

[wicked nest]

I used _class my bad

[proper hinge]

And I am assuming the Student model also has it with an underscore?

[wicked nest]

Yes

C:\Repos\ATS\venv\lib\site-packages\django\db\models\query.py in get
num = len(clone) …
▼ Local vars
Variable Value
args
(<Q: (AND: ('id', 1))>,)
clone
Error in formatting: TypeError: init() takes 1 positional argument but 3 were given
kwargs
{}
limit
21
self
Error in formatting: TypeError: init() takes 1 positional argument but 3 were given

This is the traceback I believe

[proper hinge]

Can you paste the full traceback?

!paste

[lavish prism]

Pasting large amounts of code

If your code is too long to fit in a codeblock in discord, you can paste your code here:
https://paste.pythondiscord.com/

After pasting your code, save it by clicking the floppy disk icon in the top right, or by typing ctrl + S. After doing that, the URL should change. Copy the URL and post it here so others can see it.

[wicked nest]

https://paste.pythondiscord.com/qamepeyoga.sql

Seems pretty cryptic to me

[proper hinge]

The error is coming from this line

  File "C:\Repos\ATS\ATS\cadet_manager\views.py", line 43, in get
    cadet_attributes = CadetModelSerializer(cadet_obj).data```

Well, maybe not directly

[wicked nest]

All I'm doing there is passing in the object of the student model

[proper hinge]

Yeah I guess that's fine

But it leads to some internal error later

Looks like it's trying to create the model but it's failing

I would suggest you place a breakpoint at ```py
File "C:\Repos\ATS\venv\lib\site-packages\django\db\models\base.py", line 512, in from_db
new = cls(*values)

and see what model it's trying to create and what the values are

[mortal talon]

Hello, I was wondering if there was a way I could adjust the server response based on the OS/device mentioned in the HTTP request? (preferably with flask) Thanks

[wicked nest]

@proper hinge What's the difference between the slug field and the Primary Key related field

[daring isle]

Anybody use mysql with django ? Or do you use the django native method for databases ?
I have experience with sql and it seems easier to make quick changes

[proper hinge]

The former allows you to select which field to use for the representation. The latter always uses the primary key for the representation.

[proper hinge]

I suppose it is possible to use Django without its ORM, but I feel like that kinda defeats one of Django's big selling points. If you don't need an ORM, then why not use a more lightweight framework that doesn't come with an ORM? Also, I believe Django's default authentication feature is tied to its ORM stuff, but not sure.

[daring isle]

That’s a very valid point . I was using Flask before , I’m partly trying to expand my knowledge base across stuff and also was keen to see what results I could get with Django since people have said it’s more feature packed and less manual.

My main concern is even when using flask and sql alchemy I had to resort to raw sql to achieve some moderately complex queries , maybe due to lack of skill.

The authentication feature is a big deal for me so maybe I’ll just stick to django orm for now and see .
I suppose migrating later wouldn’t be too much hassle if I code myself into a corner

[eager coral]

Do u think python is a good language for web-development?

[inland oak]

there is no better place to ask this question than in python web development server!
Surely... with the heaviest concentration of all people, who almost often used only python to do that, you will receive answers only: Yes, YES and YEAH!

[eager coral]

Haha right

Which one do y’all recommend I use between django and flask?

I’m trying to get into web development but not sure which one I should get in to

[inland oak]

flask can be easier to get started, but django should be better for serious thing

[inland oak]

start with flask ;b try django as a next framework after that, think what you like more, then choose between them

[eager coral]

I also do have a book who guides a whole web developing using django

But I am guessing it’s not that advanced guide maybe a basic one

[dusk sonnet]

hey, how can i pass the value of {{ home_data.split("|")[3] }} into JS?

[inland oak]

<scripts>
  let your_thing = {{ home_data.split("|")[3] }}
</scripts>

[dusk sonnet]

its not always gonna be {{ home_data.split("|")[3] }}

[inland oak]

transform it better being the same in your Python code before submittng it to template

keep it as a simple {{home_data}} variable

or transform it later in javascript, your choice

[dusk sonnet]

i cant, that is the only way iv managed to fix a previous problem

[inland oak]

find the better way then for the logic of this variable

[dusk sonnet]

what if i put it in a div and give it an ID? does that work?

[inland oak]

those are all means to reach goals. I have no idea what you are trying to reach, what is your goal.
and no idea what you have right now

[dusk sonnet]

ye probs shoulda said that before lol soz

so what i want to do is calculate what the user inputs in the field. I want to multiply the number after @ with the number inputted and display it in "potential winnings"

in real time

so whilst they are entering a numberpotential winningsis showing the amount inputted x the number on top

so im trying to get the number after the @ but since its in jinja idk how to pass it to JS

iv bearly worked with JS

{{ home_data.split("|")[3] }} {{ draw_data.split("|")[4] }} {{ away_data.split("|")[3] }} are all inside elif statements in html (jinja)

i want to pass their value to JS

to perform the calculations

[tepid lark]

JS! Add an on change event handler to dynamically update the text of the potential winnings tag.

[dusk sonnet]

Why is it that as soon as i enter the else if statement, i get an internal server error

        var cost = document.getElementById("amount")
        var potential_payout = document.getElementById("payout")
        var odds;
        var total = odds * cost
        if ('{{ home_data.split("|")[3] }}' != null) {
            odds = '{{ home_data.split("|")[3] }}'
            alert(odds)
        }
        else if ('{{ draw_data.split("|")[4] }}' != null) {
            odds = '{{ draw_data.split("|")[4] }}'
            alert(odds)
        }
        else if ('{{ away_data.split("|")[3] }}' != null) {
            odds = '{{ away_data.split("|")[3] }}'
            alert(odds)
        }

shouldnt it check through the if statements until one returns true

if i enter one if statement, it works, if i enter multiple it doesnt

[tepid lark]

Those will all return true?