Error5 reports
Fix InvalidRequestError
in SQLAlchemy
✅ Solution
InvalidRequestError in SQLAlchemy usually arises from calling database operations outside a properly established session or transaction context. To fix it, ensure you are operating within a `with session.begin()` block or have explicitly started and committed/rolled back a session before closing it. Also double-check that the session is properly bound to the engine before use, especially in asynchronous contexts with multiple concurrent requests.
Related Issues
Real GitHub issues where developers encountered this error:
performance: selectinload skips .unique() when no nested joinedload on collection inflates rowsJun 1, 2026
`synchronize_session='auto'` silently converts to `'evaluate'` then raises at execution time when WHERE criteria are present in bulk UPDATEMar 13, 2026
Maridb legacy behavior with 'mysql' prefix differ from directly setting 'mariadb' prefixJan 13, 2026
Timeline
First reported:Jan 29, 2025
Last reported:Jun 1, 2026