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Update Lib/warnings to CPython 3.14 #6762

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Merged
youknowone merged 6 commits into from
Jan 18, 2026
Merged

Update Lib/warnings to CPython 3.14 #6762

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f87e00f
Update Lib/warnings to CPython 3.14
fanninpm Jan 18, 2026
7f791a0
Add context_aware_warnings setting
fanninpm Jan 18, 2026
d7ba323
Unmark passing test
fanninpm Jan 18, 2026
1d4562f
Mark failing tests
fanninpm Jan 18, 2026
f5c0333
Skip failing test in test_sys for now
fanninpm Jan 18, 2026
5f25058
test_improper_option is fixed
youknowone Jan 18, 2026
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Mark failing tests
  • Loading branch information
@fanninpm @youknowone
fanninpm authored and youknowone committed Jan 18, 2026
commit 1d4562fc78dd4d982fd340e1a78e1b64e95b65e6
22 changes: 22 additions & 0 deletions Lib/test/test_warnings/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ class PublicAPITests(BaseTest):
public API.
"""

@unittest.expectedFailure # TODO: RUSTPYTHON 'PyPublicAPITests' object has no attribute 'assertHasAttr'
def test_module_all_attribute(self):
self.assertHasAttr(self.module, '__all__')
target_api = ["warn", "warn_explicit", "showwarning",
Expand Down Expand Up @@ -241,6 +242,7 @@ def test_once(self):
42)
self.assertEqual(len(w), 0)

@unittest.expectedFailure # TODO: RUSTPYTHON re.PatternError: bad escape \z at position 15
def test_filter_module(self):
MS_WINDOWS = (sys.platform == 'win32')
with self.module.catch_warnings(record=True) as w:
Expand Down Expand Up @@ -849,6 +851,7 @@ class PyWarnTests(WarnTests, unittest.TestCase):

# As an early adopter, we sanity check the
# test.import_helper.import_fresh_module utility function
@unittest.expectedFailure # TODO: RUSTPYTHON 'PyWarnTests' object has no attribute 'assertHasAttr'
def test_pure_python(self):
self.assertIsNot(original_warnings, self.module)
self.assertHasAttr(self.module.warn, '__code__')
Expand Down Expand Up @@ -896,6 +899,7 @@ class CWCmdLineTests(WCmdLineTests, unittest.TestCase):
class PyWCmdLineTests(WCmdLineTests, unittest.TestCase):
module = py_warnings

@unittest.expectedFailure # TODO: RUSTPYTHON blank rhs of assertion
def test_improper_option(self):
# Same as above, but check that the message is printed out when
# the interpreter is executed. This also checks that options are
Expand Down Expand Up @@ -1549,6 +1553,8 @@ def test_nonascii(self):

class CEnvironmentVariableTests(EnvironmentVariableTests, unittest.TestCase):
module = c_warnings
@unittest.expectedFailure # TODO: RUSTPYTHON Lists differ
def test_default_filter_configuration(self): super().test_default_filter_configuration() # TODO: RUSTPYTHON

class PyEnvironmentVariableTests(EnvironmentVariableTests, unittest.TestCase):
module = py_warnings
Expand Down Expand Up @@ -1847,6 +1853,7 @@ def h(x):
self.assertEqual(len(overloads), 2)
self.assertEqual(overloads[0].__deprecated__, "no more ints")

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_class(self):
@deprecated("A will go away soon")
class A:
Expand All @@ -1858,6 +1865,7 @@ class A:
with self.assertRaises(TypeError):
A(42)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_class_with_init(self):
@deprecated("HasInit will go away soon")
class HasInit:
Expand All @@ -1868,6 +1876,7 @@ def __init__(self, x):
instance = HasInit(42)
self.assertEqual(instance.x, 42)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_class_with_new(self):
has_new_called = False

Expand All @@ -1886,6 +1895,7 @@ def __init__(self, x) -> None:
self.assertEqual(instance.x, 42)
self.assertTrue(has_new_called)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_class_with_inherited_new(self):
new_base_called = False

Expand All @@ -1907,6 +1917,7 @@ class HasInheritedNew(NewBase):
self.assertEqual(instance.x, 42)
self.assertTrue(new_base_called)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_class_with_new_but_no_init(self):
new_called = False

Expand All @@ -1924,6 +1935,7 @@ def __new__(cls, x):
self.assertEqual(instance.x, 42)
self.assertTrue(new_called)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_mixin_class(self):
@deprecated("Mixin will go away soon")
class Mixin:
Expand All @@ -1940,6 +1952,7 @@ class Child(Base, Mixin):
instance = Child(42)
self.assertEqual(instance.a, 42)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_do_not_shadow_user_arguments(self):
new_called = False
new_called_cls = None
Expand All @@ -1959,6 +1972,7 @@ class Foo(metaclass=MyMeta, cls='haha'):
self.assertTrue(new_called)
self.assertEqual(new_called_cls, 'haha')

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_existing_init_subclass(self):
@deprecated("C will go away soon")
class C:
Expand All @@ -1975,6 +1989,7 @@ class D(C):
self.assertTrue(D.inited)
self.assertIsInstance(D(), D) # no deprecation

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_existing_init_subclass_in_base(self):
class Base:
def __init_subclass__(cls, x) -> None:
Expand All @@ -1995,6 +2010,7 @@ class D(C, x=3):

self.assertEqual(D.inited, 3)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_existing_init_subclass_in_sibling_base(self):
@deprecated("A will go away soon")
class A:
Expand All @@ -2014,6 +2030,7 @@ class D(B, A, x=42):
pass
self.assertEqual(D.inited, 42)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_init_subclass_has_correct_cls(self):
init_subclass_saw = None

Expand All @@ -2031,6 +2048,7 @@ class C(Base):

self.assertIs(init_subclass_saw, C)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_init_subclass_with_explicit_classmethod(self):
init_subclass_saw = None

Expand All @@ -2049,6 +2067,7 @@ class C(Base):

self.assertIs(init_subclass_saw, C)

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_function(self):
@deprecated("b will go away soon")
def b():
Expand All @@ -2057,6 +2076,7 @@ def b():
with self.assertWarnsRegex(DeprecationWarning, "b will go away soon"):
b()

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_method(self):
class Capybara:
@deprecated("x will go away soon")
Expand All @@ -2067,6 +2087,7 @@ def x(self):
with self.assertWarnsRegex(DeprecationWarning, "x will go away soon"):
instance.x()

@unittest.expectedFailure # TODO: RUSTPYTHON DeprecationWarning not triggered
def test_property(self):
class Capybara:
@property
Expand Down Expand Up @@ -2094,6 +2115,7 @@ def no_more_setting(self, value):
with self.assertWarnsRegex(DeprecationWarning, "no more setting"):
instance.no_more_setting = 42

@unittest.expectedFailure # TODO: RUSTPYTHON RuntimeWarning not triggered
def test_category(self):
@deprecated("c will go away soon", category=RuntimeWarning)
def c():
Expand Down