Python Anti Patterns

A comprehensive code review checklist that catches the Python mistakes that actually matter in production. Covers infrastructure gotchas like double retry layers and scattered timeout logic, architectural problems like exposing ORM models directly through APIs, and resource management issues like blocking calls in async code. The quick checklist at the end is genuinely useful during code reviews. What I appreciate most is that it focuses on the anti-patterns that cause real operational pain, not just style issues. Each example shows both the problematic code and the fix, making it practical for teams establishing coding standards.