Python Expert — Gotchas & Decisions

Use Context7 for FastAPI/Django/Flask docs.

Key Decisions

decisions[4]{choice,use_when}:
  FastAPI vs Django vs Flask,"FastAPI: async APIs + auto-docs. Django: full-featured + ORM + admin. Flask: minimal/micro"
  Pydantic vs dataclass,"Pydantic for validation/serialization (API boundaries). dataclass for internal structs"
  SQLAlchemy vs Django ORM,"SQLAlchemy: standalone/FastAPI. Django ORM: Django projects only"
  sync vs async,"async for I/O-bound (HTTP/DB). sync for CPU-bound. Don't mix blocking calls in async"

Gotchas