[3.12] gh-111681: minor fixes to typing doctests; remove unused imports in test_typing (#111682) (#112035)

Co-authored-by: Alex Waygood <[email protected]>
Co-authored-by: Nikita Sobolev <[email protected]>

Author: AlexWaygood

Doc/library/typing.rst

@@ -1941,7 +1941,7 @@ without the dedicated syntax, as documented below.
 
    .. doctest::
 
-      >>> from typing import ParamSpec
+      >>> from typing import ParamSpec, get_origin
       >>> P = ParamSpec("P")
       >>> get_origin(P.args) is P
       True

Lib/test/test_typing.py

@@ -10,7 +10,7 @@
 import re
 import sys
 import warnings
-from unittest import TestCase, main, skipUnless, skip
+from unittest import TestCase, main, skip
 from unittest.mock import patch
 from copy import copy, deepcopy
 
@@ -45,7 +45,7 @@
 import weakref
 import types
 
-from test.support import import_helper, captured_stderr, cpython_only
+from test.support import captured_stderr, cpython_only
 from test.typinganndata import mod_generics_cache, _typed_dict_helper