AI Python Error Explainer

A small Python Flask AI app. Users paste a Python error or broken code, and the app explains it in simple beginner English.

Features

• Working public web page
• AI feature using OpenAI API
• Empty-input bug handled
• /health route returns 200 OK for grader checks

Run locally

Install dependencies:

pip install -r requirements.txt

Set your API key:

Windows PowerShell

setx OPENAI_API_KEY "your_api_key_here"

Close and reopen the terminal after using setx.

macOS/Linux

export OPENAI_API_KEY="your_api_key_here"

Run:

python app.py

Open:

http://127.0.0.1:5000

Deploy

You can deploy this on Render, Railway, or another Python hosting service.

Set environment variable:

OPENAI_API_KEY = your_api_key_here

Optional:

OPENAI_MODEL = gpt-5.5-mini

Start command:

gunicorn app:app

Submission checklist

• Live URL:
• 3 user feedback screenshots/quotes:
• QA bug handled:

QA bug example

Bug: Empty input made the app send a useless request.

1. Found issue: User clicked Explain with empty box.
2. Reproduced: I cleared the box and clicked Explain.
3. Cause: The app did not validate input first.
4. Fixed it: Added a check that tells the user to paste Python code/error first.
5. Retested: Empty input now shows a clear warning and does not call the AI.