Bug Detection

Detect Bugs in Python: Common Patterns and Fixes

Python's dynamic typing makes it easy to introduce subtle bugs that only surface at runtime. Knowing the most common patterns helps you catch them early.


❌ Common Bug: Wrong Module Import

import sqlite2  # Module does not exist
conn = sqlite2.connect('database.db')

✅ Corrected Import

import sqlite3  # Correct standard library module
conn = sqlite3.connect('database.db')
💡

Pro tip: Use flake8 and mypy in your CI pipeline to catch import errors, type mismatches, and undefined variables before they reach production.

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