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1 answer
111 views

cs50web socketio : broadcast does not include the sender

I work on ubuntu 18.04. I set up a virtual environment so that I am sure to work with python3 according to the instructions found here:https://vitux.com/install-python3-on-ubuntu-and-set-up-a-virtual-...
0 votes
1 answer
148 views

Final Project with Google Maps ERR_EMPTY_RESPONSE reply for index

I am working on my final project using Google Maps to make a game, and I keep running into the same error: ide50-ssk4988.cs50.io didn’t send any data. ERR_EMPTY_RESPONSE This always seems to happen ...
1 vote
1 answer
649 views

Having Issues Setting up Flask Server in Project 1

I am having trouble setting up my flask application in Project 1. Here is some additional screenshots of the error messages I get in browser when running flask. Here is some additional info: Running ...
0 votes
1 answer
292 views

Unsure of what my DATABASE_URL is

I am using windows 10 (64-bit) and am following the course "Web Programming with python and Javascript" in CS50, in which i wanted to use my computer as a local host to store the table content. I am ...
0 votes
1 answer
608 views

Error in Flask application

Internal Server Error The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application. below is the code in ...
0 votes
2 answers
4k views

AttributeError: 'function' object has no attribute 'method'

Hey guys I've been working on my final project. I keep running into this error When I run flask, this error occurs File "/home/ubuntu/project/app.py", line 88, in login if request.method == &...
0 votes
1 answer
2k views

error while trying to update database using python and sqlalchemy

While I was trying to run create.py file having the following code: import os from flask import Flask, render_template, request from models import * app = Flask(__name__) app.config["...
0 votes
1 answer
92 views

Why flask is returning a default login page instead mine, custom one

I have an issue with my app, since I was adding the feature "users roles" I am getting a strange page content on login page looks like default login page instead of my custom login page and I cannot ...
0 votes
1 answer
291 views

"No name 'redirect' in module 'Flask'

I am attempting to run the program from lecture 8, but I am experiencing errors with statements on line 1 and 9. I am using the CS50 IDE on Cloud9. I have tried the following: Downloaded my ...
0 votes
1 answer
369 views

Uploaded images cannot be rendered in html of flask app

I'm making an app that uploads images and sounds. That had been working very well for a long time. But now suddenly pictures can't be rendered in the html any more after having been uploaded.In cloud ...
0 votes
1 answer
234 views

Can't update shopping cart for more than one item, works fine for a single item, otherwise only the first one gets updated

I am trying to update the quantity of the products in the shopping cart by changing the number in the dropdown. If the cart has two or more items then only the first one works and the qty doesn't ...
0 votes
1 answer
229 views

please help ! till yesterday my app was working almost fine but today its not even starting ! can someone pls explain this to me?

flask.cli.NoAppException: Failed to find application in module "application". Are you sure it contains a Flask application? Maybe you wrapped it in a WSGI middleware or you are using a factory ...
0 votes
1 answer
49 views

I need a hint how to fix this form

The issue is the Delete Buttons are not working well, so if I am clicking on Delete Title 1 is deleting Title 1 if I am clicking on Delete Title 2 is deleting Title 1. This is the code: @app.route(...
0 votes
1 answer
254 views

Blocked loading mixed active content EM after ajax post request to a flask app

In my browser I see the url and it starts with "HTTPS ://ide50etc". I get the EM however that says "loading... HTTP ://ide50etc". Why does it do that? It doesn't happen all the time. When my session ...
0 votes
1 answer
635 views

Final Project - Problem uploading files to IDE folder

Update: Does anyone know hot to get the folder's absolute path? It isn't ~/workspace/fp/documentos/ or any of it's variations, such as /workspace/fp/documentos/ or workspace/fp/documentos/. It seems ...
0 votes
1 answer
45 views

Problem with Updated CS50 Finance - all API calls to lookup stocks come back as None

I'm a high school teacher and have been teaching CS50 AP for about 7 years now. I like to make sure that I have a handle on all of the problem sets before going over them with my students. So, when I ...
0 votes
1 answer
855 views

AttributeError: __enter__

I defined a table in python using sqlalchemy but when i try to create it this error appears
0 votes
1 answer
4k views

Unable to run Flask App using Anaconda Prompt.Do Anaconda support Flask?

I am using Anaconda for editing and running scripts. In Anaconda prompt/command prompt, when I type this command : export FLASK_APP=application.py I am getting the error: "'export' is not recognized ...
0 votes
2 answers
423 views

Can't Connect Python Flask With PSQL Database

every time i try to make connection between python and PSQL this error disappear ?
0 votes
2 answers
88 views

PSet 9 Sell handles valid sale expected to find "56.00" in page

Like others I have become stuck with the above error, although the site seems to display the correct info, any help would be appreciated: Python Flask Code: @app.route("/") @login_required ...
0 votes
0 answers
49 views

PSet 9 check not working

Evening, I am getting the following error trying to run check on PSet9. I have downloaded a new empty version tested that and get the same error. I'm thinking this is a fault on the CS50 side but if ...
0 votes
2 answers
3k views

How to pass value from HTML to python?

I'm setting up a new project in python ,and want to setting up a web pageresturant.html using FLASK , this code in html get the selected value from drop down box when button is clicked ,how can i pass ...
0 votes
1 answer
196 views

Flask run application.py chart is always yellow

How does this Flask work? I made application.py look like this: from flask import Flask, redirect, render_template, request, url_for import os import helpers from analyzer import Analyzer app = ...
0 votes
1 answer
170 views

Rectify implementation of register function in pset7 - finance (Flask)

def register(): """Register user.""" if request.method == "POST": if not request.form.get("username"): return apology("must provide username") elif not request....
0 votes
1 answer
191 views

CS50 Web Development Project 2 Attribute Error: module 'engineio' has no attribute 'WSGIApp'

This is my first time trying to run flask on Linux, I've made projects 0 and 1 in Windows 7. I've been able to run Project 2 on Windows, right before I switched to Linux. As I enter "flask run" on the ...
0 votes
1 answer
333 views

CS50 2023 Finance Check50 issue

There is no way to get rid of the following check50 error: :( logging in as registered user succeeds application raised an exception (see the log for more details) I found through googling that in ...
0 votes
1 answer
45 views

finance: how to build an "active" table

I wish to know how to build a table (in HTML) where the row expand with the row I input on it. For a static table I've used: <table style="width:100%"> <tr> <th>Symbol</...
0 votes
1 answer
543 views

RuntimeError: missing value for placeholder (:name)

all! I'm doing the final project, and I have a form whose contents I'm trying to submit to a database. My python code is: @app.route("/Contact.html", methods=["GET", "POST"]) def Contact(): if ...
1 vote
2 answers
60 views

Week 9 - Finance - Foreign Key Mismatch

I'm trying to solve this issue for a week and nothing works! in my /buy route, I cannot update the users table with updated cash after a "buy" order is submitted. Here is an example of what ...
0 votes
1 answer
35 views

why does "world" not show up when did not enter name in the form?

i followed the instructions very closely. When i do enter a name it works just fine. However, when i do not enter it, "world" did not show up. only the "hello, " part. This was ...
0 votes
0 answers
56 views

Why does my server says it is a "bad request"?

Everytime I hit the submit button after inserting values, my server gives this message:# Bad Request The browser (or proxy) sent a request that this server could not understand. What does that mean? ...
0 votes
0 answers
24 views

do not get the chance to fill out any input and select fields

Everytime I run flask run and go to the website, I cant see any of the input fields. Instead, I get the message 'must contain a number'.What am I doing wrong? {% extends "layout.html" %} {% ...
0 votes
1 answer
255 views

Lecture 9, how to get default value from `flask.request.get` after submitting a form?

In Lecture 9, we learnt about Flask. Prof David taught us in the first couple sections by creating a Python file called app.py, and two similar HTML files that have different code in their bodies, ...
0 votes
1 answer
117 views

Nesting SQL queries in Flask (final project)

I've been trying to only insert new ids if they weren't inserted before in my database, but the problem I've been having is that I couldn't get the nested queries to work in Python Flask. Whatever I ...
0 votes
0 answers
61 views

Problem 9: Finance - flask run error

When I enter flask run in the command line it appears to give the normal response but when I click on the link provided in the terminal, it opens a page in firefox titled: "problem loading page&...
0 votes
2 answers
109 views

TypeError: 'NoneType' object is not subscriptable in PSET9, but working manually

I am working on pset9 Finance. I have implemented the functionality for purchasing stocks, and it works well when I manually test it. However, when I run the CS50's check50 validation, it returns an ...
0 votes
1 answer
87 views

Check50 PSET9 Finance Failing Throughout

First post here...seems I'm coming unstuck at the pointy end of the course. Hahaha! My code doesn't seem to be passing Check50 through Quotes/Buy/Sell - although the functionality seems to be fine ...
0 votes
1 answer
78 views

Finance app - object is not subscriptable

I have problems with pset 9 finance. Since days I try to figure out what is wrong with my code for the sell route. I know that there a handfull of similar questions on StackExchange/StackOverflow but ...
0 votes
1 answer
285 views

Lab9 -- Buttons to delete DB entries don't work

Can anyone please tell me why my "Remove Entry" from DB buttons don't work? I included the python.app code below the HTML: <!DOCTYPE html> <html lang="en"> ...
2 votes
3 answers
4k views

Runtime Error: API_KEY not set

In Pset8, I continue to get the "API_KEY" not set runtime error, even though i crosschecked with: echo $API_KEY and the response was: AIzaSyDKcW1m49qo95kiJFTpGWTUrj3Iyi-xloA which matched the key ...
0 votes
0 answers
55 views

In 'Finance' how do I get the page to load?

I have not been able to get any page to load for the Finance problem (even without me messing about with it!). I tried deleting everything and starting again like so: $ wget https://cdn.cs50.net/2021/...
1 vote
2 answers
3k views

Finance: UNIQUE constraint failed: users.username

I've been struggling with this for days. Ignore the '1234' hardcoded into the "insert into" line, just using that to isolate problems. The problem I'm facing is with the username being ...
0 votes
1 answer
88 views

PSET9 FINANCE SQLITE "no such column exists" while multiplying two columns to update a third

In the Index function on APP.PY of my finance code, I'm getting "RuntimeError: no such column: total_per_share" even though I'm using "AS" to create this column -- please advise. @...
0 votes
1 answer
698 views

Cannot run Flask - TypeError

Whenever I try "flask run" I get this error in the IDE. I have no idea what the problem actually is. ~/workspace/pset7/survey/ $ flask run * Serving Flask app "application.py" (lazy loading) * ...
0 votes
1 answer
197 views

Flask/Python PSET9 Finance -- Using PRINT() to debug

Having some problems with INDEX that I figure printing variable content to console will help me solve. BUT no matter what I try, print(variable) doesn't result in anything at all on the console/...
0 votes
1 answer
63 views

Should I deploy flask app for the final project?

I’m working on a final project, which is a web application using Flask. For it to be graded, should I deploy it on Heroku or only submit my source files. I’m not familiar with Heroku, and from what I ...
0 votes
2 answers
128 views

Is there a way in jinja to display a block in a specific page?

I have a layout.html page with a <footer> that I want to display in almost all pages using {% extends "layout.html %}. Only in the user profile page the footer will be different. How can I ...
0 votes
1 answer
769 views

Flask Filter Search/List in Python

I created a country list on the python search page section, the data is sent to the Html table with jinja syntax “ The Html table also has a JavaScript function it functions correctly no help with ...
0 votes
1 answer
1k views

jinja code not working inside html file

I am using flask for the first time and jinja code is being displayed on the webpage. this is my html file: <!DOCTYPE html> <html lang="en"> <head> ...
1 vote
1 answer
1k views

PSET9 / can't check until a frown turns upside down

I am getting this message in the following checks :| sell page has all required elements/ :| sell handles invalid number of shares :| sell handles valid sale I guess the problem is in by sell or buy ...