python config_error ai_generated true

DeprecationWarning: @pytest.yield_fixture is deprecated. Use @pytest.fixture instead; they are the same.

ID: python/pytest-deprecation-yield-fixture

Also available as: JSON · Markdown · 中文
80%Fix Rate
90%Confidence
0Evidence
2024-04-02First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7.x active — — —
8.x active — — —

Root Cause

Since pytest 3.0, yield_fixture is an alias of fixture. In pytest 7+ the alias emits a DeprecationWarning and will be removed.

generic

中文

自 pytest 3.0 起，yield_fixture 是 fixture 的别名。在 pytest 7+ 中该别名会发出 DeprecationWarning，并将在未来移除。

Workarounds

  1. 98% success 
    # before
@pytest.yield_fixture
def client(): ...

# after
@pytest.fixture
def client(): ...
  2. 90% success 
    pyupgrade --py38-plus tests/**/*.py

Dead Ends

Common approaches that don't work:

  1. 70% fail

    Hides the warning but leaves the deprecated API in place; the fixture will break on the next major release.

  2. 65% fail

    Blocks upgrades and security patches across the whole test toolchain.