gh-105407: Remove unused imports (#105554)

Author: vstinner

Lib/test/test___all__.py

@@ -101,7 +101,8 @@ def test_all(self):
         ])
 
         # In case _socket fails to build, make this test fail more gracefully
-        # than an AttributeError somewhere deep in CGIHTTPServer.
+        # than an AttributeError somewhere deep in concurrent.futures, email
+        # or unittest.
         import _socket
 
         ignored = []

Lib/test/test_capi/test_unicode.py

@@ -329,7 +329,7 @@ def test_from_format(self):
             pythonapi, py_object, sizeof,
             c_int, c_long, c_longlong, c_ssize_t,
             c_uint, c_ulong, c_ulonglong, c_size_t, c_void_p,
-            sizeof, c_wchar, c_wchar_p)
+            c_wchar, c_wchar_p)
         name = "PyUnicode_FromFormat"
         _PyUnicode_FromFormat = getattr(pythonapi, name)
         _PyUnicode_FromFormat.argtypes = (c_char_p,)

Lib/test/test_urllib2_localnet.py

@@ -11,7 +11,6 @@
 from test import support
 from test.support import hashlib_helper
 from test.support import threading_helper
-from test.support import warnings_helper
 
 try:
     import ssl

Lib/webbrowser.py

@@ -8,7 +8,6 @@
 import sys
 import subprocess
 import threading
-import warnings
 
 __all__ = ["Error", "open", "open_new", "open_new_tab", "get", "register"]
 

Misc/python-config.in

@@ -4,7 +4,6 @@
 # Keep this script in sync with python-config.sh.in
 
 import getopt
-import os
 import sys
 import sysconfig