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Unresolved annotations shouldn't throw errors on Python 3.14 #13549
Description
Especially during testing of a new release, I often comment out dependencies and add collect_ignore_glob = ["test_*.py"] to conftest to skip test collection for a whole block for tests which depend on in incompatible dependency. With Python 3.14 the evaluation of annotations is deferred by default, so pytest shouldn't throw an error if a name is undefined. A similar result could previously be archived by adding from __future__ import annotations.
# test.py
import pytest
# from incompatible_dependency import X
@pytest.fixture
def some_obj() -> X:
...
def test_func(some_obj) -> None:
assert Truepytest test.py
test.py:8: in __annotate__
def some_obj() -> X:
^
E NameError: name 'X' is not definedAs far as I'm aware, pytest doesn't care about annotations. A possible solution would be to add a compatibility layer to the inspect.signature call with annotation_format=Format.STRING as added argument. In particular here:
Line 125 in 9f9b7f4
Activity
cdce8p commentedon Jun 22, 2025
Maybe a more common case is actually typing only imports being behind
if TYPE_CHECKINGguards. This also raises aNameErrorcurrently but should work fine on Python 3.14+.Defer annotation eval on Python 3.14 (#13550)
Defer annotation eval on Python 3.14 (#13550)
Defer annotation eval on Python 3.14 (#13550) (#13553)
chore(deps): update dependency pytest to v9 (#305)