Reset DeprecationWarning filters in test_typing io and re (#26811)

Author: Fidget-Spinner

Lib/test/test_typing.py

@@ -3998,6 +3998,7 @@ def stuff(a: BinaryIO) -> bytes:
 
     def test_io_submodule(self):
         with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings("default", category=DeprecationWarning)
             from typing.io import IO, TextIO, BinaryIO, __all__, __name__
             self.assertIs(IO, typing.IO)
             self.assertIs(TextIO, typing.TextIO)
@@ -4052,6 +4053,7 @@ def test_repr(self):
 
     def test_re_submodule(self):
         with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings("default", category=DeprecationWarning)
             from typing.re import Match, Pattern, __all__, __name__
             self.assertIs(Match, typing.Match)
             self.assertIs(Pattern, typing.Pattern)

Misc/NEWS.d/next/Library/2021-06-14-14-19-11.bpo-38291.ee4cSX.rst

@@ -1 +1 @@
-Importing typing.io or typing.re now prints a `DeprecationWarning`.
+Importing typing.io or typing.re now prints a ``DeprecationWarning``.