7 articles
RSSHow to fix Gunicorn errors — WORKER TIMEOUT killed, ImportError cannot import app, worker class not found, connection refused 502 behind nginx, graceful reload not working, and sync vs async worker selection.
How to fix Django REST Framework 403 Forbidden and permission denied errors — authentication classes, permission classes, IsAuthenticated vs AllowAny, object-level permissions, and CSRF issues.
How to fix Django migration conflicts — why multiple leaf migrations conflict, how to merge conflicting migrations, resolve dependency chains, and set up a team workflow to prevent migration conflicts.
How to fix Django 403 CSRF verification failed error caused by missing CSRF tokens, AJAX requests, cross-origin issues, HTTPS misconfig, and session problems.
How to fix 'duplicate key value violates unique constraint' in PostgreSQL by resetting sequences, using upserts, fixing bulk imports, and handling concurrent inserts.
How to fix Python's circular import error: ImportError cannot import name from partially initialized module. Covers lazy imports, module restructuring, TYPE_CHECKING, Django, Flask, and more.
How to fix Django's 'OperationalError: no such table' error caused by missing migrations, wrong database configuration, corrupted files, or Docker volume issues.