bugstack for Python

The bugstack SDK captures uncaught server errors in Django, Flask, and FastAPI and starts a fix: AttributeError, KeyError, ImportError, and NoneType errors. It is the crash-capture part of a product that maintains your whole repository.

What Python Errors bugstack Fixes

• AttributeError: 'NoneType' object has no attribute — accessing attributes on None return values
• KeyError — accessing missing dictionary keys without .get()
• ImportError / ModuleNotFoundError — incorrect import paths or missing modules
• TypeError: argument of type 'NoneType' — passing None where a value is expected
• ValueError — invalid function arguments and type conversions
• Django ORM errors — DoesNotExist, MultipleObjectsReturned, field lookup failures

Install the SDK

Add bugstack to your Python project:

pip install bugstack

Then initialize it in your application entry point:

import bugstack

bugstack.init(
    api_key=os.environ["BUGSTACK_API_KEY"]
)

Example Fix

bugstack detects an AttributeError caused by calling a method on a None return value and writes a small fix:

def get_user_email(user_id):
    user = db.session.get(User, user_id)
    return user.email

# Runtime error when user is None:
# AttributeError: 'NoneType' object
#   has no attribute 'email'

def get_user_email(user_id):
    user = db.session.get(User, user_id)
    if user is None:
        return None
    return user.email

What else bugstack does for this repository

The SDK is one part. Once your repository is connected, bugstack also scans your PyPI packages for known vulnerabilities and outdated versions, scans for secrets, and acts on failed deploys if you host on Render. It scans and reports, and it can open pull requests for what it finds. Those pull requests are switched on per account. Every change arrives as a pull request, and you set how much happens without you.

Related Error Guides

• Fix AttributeError: 'NoneType' in Django
• Fix KeyError in Flask Request Handling
• Fix ImportError in Flask
• Fix TypeError in FastAPI Validation
• Fix RecursionError in Django
• Fix Database Connection Error in Django

Full installation guide with config reference →