python runtime_error ai_generated true

Failed: Timeout (>30.0s) from pytest-timeout.

ID: python/pytest-timeout-test-hangs

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80%Fix Rate
85%Confidence
0Evidence
2026-02-14First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
2.x active — — —

Root Cause

A test blocks on I/O (network, subprocess, lock) longer than the configured timeout. pytest-timeout kills the test but the underlying hang often indicates a missing mock or a deadlock.

generic

中文

测试在 I/O（网络、子进程、锁）上阻塞时间超过配置的超时。pytest-timeout 会终止测试，但底层挂起通常表明缺少 mock 或存在死锁。

Workarounds

  1. 90% success 
    Use the thread method to get a Python traceback at timeout:

pytest --timeout=30 --timeout-method=thread -s
  2. 95% success 
    Mock the blocking dependency (e.g. requests.get) or use a fake server; this usually reveals the missing mock.

Dead Ends

Common approaches that don't work:

  1. 70% fail

    Slows the suite and hides the real hang; CI eventually times out at the job level.

  2. 90% fail

    Hung tests block CI indefinitely, requiring manual cancellation.