python runtime_error ai_generated true

sqlalchemy.exc.InvalidRequestError: This session is in 'closed' state. No operations are allowed.

ID: python/sqlalchemy-commit-rollback-session-closed

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2025-04-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

Attempting to use a session after it has been closed.

generic

中文

尝试在会话关闭后使用它。

Workarounds

  1. 95% success Create a new session instance. 
    from sqlalchemy.orm import Session
new_session = Session(engine)
  2. 90% success Use context manager to auto-close. 
    with Session(engine) as session:
    session.add(obj)
    session.commit()

Dead Ends

Common approaches that don't work:

  1. Calling session.open() which does not exist. 90% fail

    Session has no open method; must create new session.

  2. Reassigning session variable to same closed object. 80% fail

    Object still closed; operations fail.