Issue #23277: Remove unused imports in tests.

Lib/ctypes/test/test_parameters.py

@@ -49,7 +49,7 @@ def from_param(cls, value):
 
     # XXX Replace by c_char_p tests
     def test_cstrings(self):
-        from ctypes import c_char_p, byref
+        from ctypes import c_char_p
 
         # c_char_p.from_param on a Python String packs the string
         # into a cparam object
@@ -68,7 +68,7 @@ def test_cstrings(self):
 
     @need_symbol('c_wchar_p')
     def test_cw_strings(self):
-        from ctypes import byref, c_wchar_p
+        from ctypes import c_wchar_p
 
         c_wchar_p.from_param("123")
 
@@ -98,7 +98,7 @@ def test_int_pointers(self):
     def test_byref_pointer(self):
         # The from_param class method of POINTER(typ) classes accepts what is
         # returned by byref(obj), it type(obj) == typ
-        from ctypes import c_short, c_uint, c_int, c_long, pointer, POINTER, byref
+        from ctypes import c_short, c_uint, c_int, c_long, POINTER, byref
         LPINT = POINTER(c_int)
 
         LPINT.from_param(byref(c_int(42)))

Lib/distutils/tests/test_bdist_rpm.py

@@ -3,16 +3,12 @@
 import unittest
 import sys
 import os
-import tempfile
-import shutil
 from test.support import run_unittest
 
 from distutils.core import Distribution
 from distutils.command.bdist_rpm import bdist_rpm
 from distutils.tests import support
 from distutils.spawn import find_executable
-from distutils import spawn
-from distutils.errors import DistutilsExecError
 
 SETUP_PY = """\
 from distutils.core import setup

Lib/distutils/tests/test_build_ext.py

@@ -166,7 +166,6 @@ def test_finalize_options(self):
         cmd = self.build_ext(dist)
         cmd.finalize_options()
 
-        from distutils import sysconfig
         py_include = sysconfig.get_python_inc()
         self.assertIn(py_include, cmd.include_dirs)
 

Lib/distutils/tests/test_clean.py

@@ -1,7 +1,6 @@
 """Tests for distutils.command.clean."""
 import os
 import unittest
-import getpass
 
 from distutils.command.clean import clean
 from distutils.tests import support

Lib/distutils/tests/test_config.py

@@ -1,7 +1,6 @@
 """Tests for distutils.pypirc.pypirc."""
 import os
 import unittest
-import tempfile
 
 from distutils.core import PyPIRCCommand
 from distutils.core import Distribution

Lib/distutils/tests/test_cygwinccompiler.py

@@ -3,11 +3,10 @@
 import sys
 import os
 from io import BytesIO
-import subprocess
 from test.support import run_unittest
 
 from distutils import cygwinccompiler
-from distutils.cygwinccompiler import (CygwinCCompiler, check_config_h,
+from distutils.cygwinccompiler import (check_config_h,
                                        CONFIG_H_OK, CONFIG_H_NOTOK,
                                        CONFIG_H_UNCERTAIN, get_versions,
                                        get_msvcr)

Lib/distutils/tests/test_dep_util.py

@@ -1,7 +1,6 @@
 """Tests for distutils.dep_util."""
 import unittest
 import os
-import time
 
 from distutils.dep_util import newer, newer_pairwise, newer_group
 from distutils.errors import DistutilsFileError

Lib/distutils/tests/test_file_util.py

@@ -1,7 +1,6 @@
 """Tests for distutils.file_util."""
 import unittest
 import os
-import shutil
 import errno
 from unittest.mock import patch
 

Lib/distutils/tests/test_install_data.py

@@ -1,7 +1,6 @@
 """Tests for distutils.command.install_data."""
 import os
 import unittest
-import getpass
 
 from distutils.command.install_data import install_data
 from distutils.tests import support

Lib/distutils/tests/test_install_headers.py

@@ -1,7 +1,6 @@
 """Tests for distutils.command.install_headers."""
 import os
 import unittest
-import getpass
 
 from distutils.command.install_headers import install_headers
 from distutils.tests import support

Lib/distutils/tests/test_spawn.py

@@ -1,11 +1,10 @@
 """Tests for distutils.spawn."""
 import unittest
 import os
-import time
+from test.support import run_unittest
-from test.support import captured_stdout, run_unittest
 
 from distutils.spawn import _nt_quote_args
-from distutils.spawn import spawn, find_executable
+from distutils.spawn import spawn
 from distutils.errors import DistutilsExecError
 from distutils.tests import support
 

Lib/lib2to3/tests/test_all_fixers.py

@@ -10,7 +10,6 @@
 import test.support
 
 # Local imports
-from lib2to3 import refactor
 from . import support
 
 

Lib/lib2to3/tests/test_fixers.py

@@ -2,12 +2,11 @@
 
 # Python imports
 import os
-import unittest
 from itertools import chain
 from operator import itemgetter
 
 # Local imports
-from lib2to3 import pygram, pytree, refactor, fixer_util
+from lib2to3 import pygram, fixer_util
 from lib2to3.tests import support
 
 

Lib/lib2to3/tests/test_parser.py

@@ -10,7 +10,7 @@
 
 # Testing imports
 from . import support
-from .support import driver, test_dir
+from .support import driver
 from test.support import verbose
 
 # Python imports

Lib/lib2to3/tests/test_pytree.py

@@ -11,8 +11,6 @@
 
 from __future__ import with_statement
 
-import warnings
-
 # Testing imports
 from . import support
 

Lib/lib2to3/tests/test_refactor.py

@@ -7,18 +7,14 @@
 import sys
 import os
 import codecs
-import operator
 import io
 import tempfile
 import shutil
 import unittest
-import warnings
 
 from lib2to3 import refactor, pygram, fixer_base
 from lib2to3.pgen2 import token
 
-from . import support
-
 
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
 FIXER_DIR = os.path.join(TEST_DATA_DIR, "fixers")

Lib/test/audiotests.py

@@ -1,5 +1,4 @@
 from test.support import findfile, TESTFN, unlink
-import unittest
 import array
 import io
 import pickle

Lib/test/test__locale.py

@@ -4,7 +4,6 @@
 except ImportError:
     nl_langinfo = None
 
-import codecs
 import locale
 import sys
 import unittest

Lib/test/test__osx_support.py

@@ -4,7 +4,6 @@
 
 import os
 import platform
-import shutil
 import stat
 import sys
 import unittest

Lib/test/test_array.py

@@ -7,8 +7,6 @@
 import weakref
 import pickle
 import operator
-import io
-import math
 import struct
 import sys
 import warnings

Lib/test/test_asynchat.py

@@ -12,7 +12,6 @@
 import sys
 import time
 import unittest
-import warnings
 import unittest.mock
 try:
     import threading

Lib/test/test_bigmem.py

@@ -14,7 +14,6 @@
 import unittest
 import operator
 import sys
-import functools
 
 # These tests all use one of the bigmemtest decorators to indicate how much
 # memory they use and how much memory they need to be even meaningful.  The

Lib/test/test_binop.py

@@ -2,7 +2,7 @@
 
 import unittest
 from test import support
-from operator import eq, ne, lt, gt, le, ge
+from operator import eq, le
 from abc import ABCMeta
 
 def gcd(a, b):

Lib/test/test_buffer.py

@@ -16,7 +16,6 @@
 from test import support
 from itertools import permutations, product
 from random import randrange, sample, choice
-from sysconfig import get_config_var
 import warnings
 import sys, array, io
 from decimal import Decimal

Lib/test/test_codeccallbacks.py

@@ -4,7 +4,6 @@
 import test.support
 import unicodedata
 import unittest
-import warnings
 
 class PosReturn:
     # this can be used for configurable callbacks

Lib/test/test_codecs.py

@@ -4,7 +4,6 @@
 import locale
 import sys
 import unittest
-import warnings
 import encodings
 
 from test import support

Lib/test/test_cprofile.py

@@ -6,7 +6,7 @@
 # rip off all interesting stuff from test_profile
 import cProfile
 from test.test_profile import ProfileTest, regenerate_expected_output
-from test.profilee import testfunc
+
 
 class CProfileTest(ProfileTest):
     profilerclass = cProfile.Profile

Lib/test/test_csv.py

@@ -2,7 +2,6 @@
 # csv package unit tests
 
 import copy
-import io
 import sys
 import unittest
 from io import StringIO
@@ -1078,7 +1077,6 @@ class TestUnicode(unittest.TestCase):
              "François Pinard"]
 
     def test_unicode_read(self):
-        import io
         with TemporaryFile("w+", newline='', encoding="utf-8") as fileobj:
             fileobj.write(",".join(self.names) + "\r\n")
             fileobj.seek(0)
@@ -1087,7 +1085,6 @@ def test_unicode_read(self):
 
 
     def test_unicode_write(self):
-        import io
         with TemporaryFile("w+", newline='', encoding="utf-8") as fileobj:
             writer = csv.writer(fileobj)
             writer.writerow(self.names)

Lib/test/test_dbm_gnu.py

@@ -2,7 +2,7 @@
 gdbm = support.import_module("dbm.gnu") #skip if not supported
 import unittest
 import os
-from test.support import verbose, TESTFN, unlink
+from test.support import TESTFN, unlink
 
 
 filename = TESTFN

Lib/test/test_dbm_ndbm.py

@@ -1,7 +1,6 @@
 from test import support
 support.import_module("dbm.ndbm") #skip if not supported
 import unittest
-import random
 import dbm.ndbm
 from dbm.ndbm import error
 

Lib/test/test_devpoll.py

@@ -6,7 +6,7 @@
 import random
 import select
 import unittest
-from test.support import TESTFN, run_unittest, cpython_only
+from test.support import run_unittest, cpython_only
 
 if not hasattr(select, 'devpoll') :
     raise unittest.SkipTest('test works only on Solaris OS family')

Lib/test/test_doctest.py

@@ -1876,7 +1876,6 @@ def test_pdb_set_trace():
         To demonstrate this, we'll create a fake standard input that
         captures our debugger input:
 
-          >>> import tempfile
           >>> real_stdin = sys.stdin
           >>> sys.stdin = _FakeInput([
           ...    'print(x)',  # print data defined by the example
@@ -1917,7 +1916,7 @@ def test_pdb_set_trace():
           ... finally:
           ...     sys.stdin = real_stdin
           --Return--
-          > <doctest test.test_doctest.test_pdb_set_trace[8]>(3)calls_set_trace()->None
+          > <doctest test.test_doctest.test_pdb_set_trace[7]>(3)calls_set_trace()->None
           -> import pdb; pdb.set_trace()
           (Pdb) print(y)
           2
@@ -2804,7 +2803,6 @@ def test_CLI(): r"""
     ...         _ = f.write("       'abc def'\n")
     ...         _ = f.write("\n")
     ...         _ = f.write('   \"\"\"\n')
-    ...     import shutil
     ...     rc1, out1, err1 = script_helper.assert_python_failure(
     ...             '-m', 'doctest', fn, fn2, TERM='')
     ...     rc2, out2, err2 = script_helper.assert_python_ok(

Lib/test/test_dynamic.py

@@ -1,7 +1,6 @@
 # Test the most dynamic corner cases of Python's runtime semantics.
 
 import builtins
-import contextlib
 import unittest
 
 from test.support import swap_item, swap_attr

Lib/test/test_email/test_email.py

@@ -3421,7 +3421,6 @@ def test_push_random(self):
 class TestFeedParsers(TestEmailBase):
 
     def parse(self, chunks):
-        from email.feedparser import FeedParser
         feedparser = FeedParser()
         for chunk in chunks:
             feedparser.feed(chunk)

Lib/test/test_email/test_headerregistry.py

@@ -1,7 +1,6 @@
 import datetime
 import textwrap
 import unittest
-import types
 from email import errors
 from email import policy
 from email.message import Message

Lib/test/test_float.py

@@ -1,6 +1,5 @@
 
 import fractions
-import math
 import operator
 import os
 import random

Lib/test/test_gdb.py

@@ -5,7 +5,6 @@
 
 import os
 import re
-import pprint
 import subprocess
 import sys
 import sysconfig

Lib/test/test_gettext.py

@@ -1,6 +1,5 @@
 import os
 import base64
-import shutil
 import gettext
 import unittest
 

Lib/test/test_idle.py

@@ -1,5 +1,4 @@
 import unittest
-from test import support
 from test.support import import_module
 
 # Skip test if _thread or _tkinter wasn't built or idlelib was deleted.

Lib/test/test_importlib/extension/test_path_hook.py

@@ -2,7 +2,6 @@
 
 machinery = util.import_importlib('importlib.machinery')
 
-import collections
 import unittest
 
 

Lib/test/test_importlib/import_/test_packages.py

@@ -1,7 +1,6 @@
 from .. import util
 import sys
 import unittest
-import importlib
 from test import support
 
 

Lib/test/test_importlib/test_locks.py

@@ -3,7 +3,6 @@
 init = test_util.import_importlib('importlib')
 
 import sys
-import time
 import unittest
 import weakref
 

Lib/test/test_importlib/test_namespace_pkgs.py

@@ -1,9 +1,6 @@
 import contextlib
-import importlib.abc
-import importlib.machinery
 import os
 import sys
-import types
 import unittest
 
 from test.test_importlib import util

Lib/test/test_mailbox.py

@@ -7,17 +7,12 @@
 import email.message
 import re
 import io
-import shutil
 import tempfile
 from test import support
 import unittest
 import textwrap
 import mailbox
 import glob
-try:
-    import fcntl
-except ImportError:
-    pass
 
 
 class TestBase:

Lib/test/test_mailcap.py

@@ -1,6 +1,5 @@
 import mailcap
 import os
-import shutil
 import test.support
 import unittest
 

Lib/test/test_math.py

@@ -6,7 +6,6 @@
 import unittest
 import math
 import os
-import platform
 import sys
 import struct
 import sysconfig

Lib/test/test_multiprocessing_main_handling.py

@@ -6,7 +6,6 @@
 
 import importlib
 import importlib.machinery
-import zipimport
 import unittest
 import sys
 import os
@@ -15,7 +14,7 @@
 
 from test.support.script_helper import (
     make_pkg, make_script, make_zip_pkg, make_zip_script,
-    assert_python_ok, assert_python_failure, spawn_python, kill_python)
+    assert_python_ok)
 
 # Look up which start methods are available to test
 import multiprocessing

Lib/test/test_pdb.py

@@ -558,7 +558,6 @@ def test_pdb_continue_in_bottomframe():
 
 def pdb_invoke(method, arg):
     """Run pdb.method(arg)."""
-    import pdb
     getattr(pdb.Pdb(nosigint=True), method)(arg)
 
 

Lib/test/test_pep352.py

@@ -1,6 +1,5 @@
 import unittest
 import builtins
-import warnings
 import os
 from platform import system as platform_system
 

Lib/test/test_pickletools.py

@@ -1,4 +1,3 @@
-import struct
 import pickle
 import pickletools
 from test import support

Lib/test/test_plistlib.py

@@ -7,7 +7,6 @@
 import codecs
 import binascii
 import collections
-import struct
 from test import support
 from io import BytesIO
 

Lib/test/test_poplib.py

@@ -8,7 +8,6 @@
 import asynchat
 import socket
 import os
-import time
 import errno
 
 from unittest import TestCase, skipUnless

Lib/test/test_posix.py

@@ -11,7 +11,6 @@
 import os
 import platform
 import pwd
-import shutil
 import stat
 import tempfile
 import unittest

Lib/test/test_posixpath.py

@@ -1,4 +1,3 @@
-import itertools
 import os
 import posixpath
 import unittest

Lib/test/test_regrtest.py

@@ -4,10 +4,8 @@
 Note: test_regrtest cannot be run twice in parallel.
 """
 
-import argparse
 import contextlib
 import faulthandler
-import getopt
 import io
 import os.path
 import platform

Lib/test/test_robotparser.py

@@ -2,8 +2,6 @@
 import unittest
 import urllib.robotparser
 from collections import namedtuple
-from urllib.error import URLError, HTTPError
-from urllib.request import urlopen
 from test import support
 from http.server import BaseHTTPRequestHandler, HTTPServer
 try:

Lib/test/test_socket.py

@@ -13,7 +13,6 @@
 import sys
 import os
 import array
-import platform
 import contextlib
 from weakref import proxy
 import signal

Lib/test/test_socketserver.py

@@ -7,8 +7,6 @@
 import select
 import signal
 import socket
-import select
-import errno
 import tempfile
 import unittest
 import socketserver

Lib/test/test_subprocess.py

@@ -5,15 +5,12 @@
 import sys
 import signal
 import io
-import locale
 import os
 import errno
 import tempfile
 import time
-import re
 import selectors
 import sysconfig
-import warnings
 import select
 import shutil
 import gc

Lib/test/test_sunau.py

@@ -1,4 +1,3 @@
-from test.support import TESTFN
 import unittest
 from test import audiotests
 from audioop import byteswap

Lib/test/test_telnetlib.py

@@ -1,7 +1,6 @@
 import socket
 import selectors
 import telnetlib
-import time
 import contextlib
 
 from test import support

Lib/test/test_threading.py

@@ -3,7 +3,7 @@
 """
 
 import test.support
-from test.support import verbose, strip_python_stderr, import_module, cpython_only
+from test.support import verbose, import_module, cpython_only
 from test.support.script_helper import assert_python_ok, assert_python_failure
 
 import random

Lib/test/test_tools/test_gprof2html.py

@@ -2,12 +2,11 @@
 
 import os
 import sys
-import importlib
 import unittest
 from unittest import mock
 import tempfile
 
-from test.test_tools import scriptsdir, skip_if_missing, import_tool
+from test.test_tools import skip_if_missing, import_tool
 
 skip_if_missing()
 

Lib/test/test_tools/test_md5sum.py

@@ -5,7 +5,7 @@
 from test import support
 from test.support.script_helper import assert_python_ok, assert_python_failure
 
-from test.test_tools import scriptsdir, import_tool, skip_if_missing
+from test.test_tools import scriptsdir, skip_if_missing
 
 skip_if_missing()
 

Lib/test/test_tools/test_pdeps.py

@@ -4,7 +4,7 @@
 import unittest
 import tempfile
 
-from test.test_tools import scriptsdir, skip_if_missing, import_tool
+from test.test_tools import skip_if_missing, import_tool
 
 skip_if_missing()
 

Lib/test/test_urllib2.py

@@ -462,7 +462,7 @@ def reset(self):
         self.requests = []
 
     def http_open(self, req):
-        import email, http.client, copy
+        import email, copy
         self.requests.append(copy.deepcopy(req))
         if self._count == 0:
             self._count = self._count + 1

Lib/test/test_userstring.py

@@ -1,7 +1,6 @@
 # UserString is a wrapper around the native builtin string type.
 # UserString instances should behave similar to builtin string objects.
 
-import string
 import unittest
 from test import string_tests
 

Lib/test/test_uu.py

@@ -8,7 +8,6 @@
 
 import sys, os
 import uu
-from io import BytesIO
 import io
 
 plaintext = b"The smooth-scaled python crept over the sleeping dog\n"

Lib/test/test_venv.py

@@ -15,7 +15,6 @@
 import tempfile
 from test.support import (captured_stdout, captured_stderr,
                           can_symlink, EnvironmentVarGuard, rmtree)
-import textwrap
 import unittest
 import venv
 

Lib/test/test_wave.py

@@ -1,4 +1,3 @@
-from test.support import TESTFN
 import unittest
 from test import audiotests
 from test import support

Lib/test/test_weakset.py

@@ -1,11 +1,6 @@
 import unittest
-from weakref import proxy, ref, WeakSet
+from weakref import WeakSet
-import operator
-import copy
 import string
-from random import randrange, shuffle
-import warnings
-import collections
 from collections import UserString as ustr
 import gc
 import contextlib

Lib/test/test_xml_etree_c.py

@@ -108,7 +108,7 @@ def test_element_with_children(self):
                              struct.calcsize('8P'))
 
 def test_main():
-    from test import test_xml_etree, test_xml_etree_c
+    from test import test_xml_etree
 
     # Run the tests specific to the C implementation
     support.run_unittest(

Lib/test/test_xmlrpc.py

@@ -1132,7 +1132,6 @@ def captured_stdout(encoding='utf-8'):
     """A variation on support.captured_stdout() which gives a text stream
     having a `buffer` attribute.
     """
-    import io
     orig_stdout = sys.stdout
     sys.stdout = io.TextIOWrapper(io.BytesIO(), encoding=encoding)
     try:

Lib/test/test_xmlrpc_net.py

@@ -1,6 +1,4 @@
 import collections.abc
-import errno
-import socket
 import unittest
 from test import support
 

Lib/test/test_zipimport_support.py

@@ -12,7 +12,6 @@
 import doctest
 import inspect
 import linecache
-import pdb
 import unittest
 from test.support.script_helper import (spawn_python, kill_python, assert_python_ok,
                                         make_script, make_zip_script)

Lib/tkinter/test/runtktests.py

@@ -7,7 +7,6 @@
 """
 
 import os
-import unittest
 import importlib
 import test.support
 

Lib/tkinter/test/test_ttk/test_functions.py

@@ -1,6 +1,5 @@
 # -*- encoding: utf-8 -*-
 import unittest
-import tkinter
 from tkinter import ttk
 
 class MockTkApp:

Lib/unittest/test/testmock/testmagicmethods.py

@@ -1,5 +1,4 @@
 import unittest
-import inspect
 import sys
 from unittest.mock import Mock, MagicMock, _magics
 

Lib/unittest/test/testmock/testpatch.py

@@ -10,9 +10,9 @@
 from unittest.test.testmock.support import SomeClass, is_instance
 
 from unittest.mock import (
-    NonCallableMock, CallableMixin, patch, sentinel,
+    NonCallableMock, CallableMixin, sentinel,
     MagicMock, Mock, NonCallableMagicMock, patch, _patch,
-    DEFAULT, call, _get_target, _patch
+    DEFAULT, call, _get_target
 )