bpo-40443: Remove unused imports in tests (GH-19805)

Author: vstinner

Lib/test/test_parser.py

@@ -8,7 +8,6 @@
 import unittest
 import operator
 import struct
-import sys
 from test import support
 from test.support.script_helper import assert_python_failure
 from test.support.script_helper import assert_python_ok

Lib/test/test_peg_parser.py

@@ -1,9 +1,6 @@
 import ast
-import os
-import sys
 import _peg_parser as peg_parser
 import unittest
-from pathlib import PurePath
 from typing import Any, Union, Iterable, Tuple
 from textwrap import dedent
 from test import support

Lib/test/test_platform.py

@@ -3,7 +3,6 @@
 import subprocess
 import sys
 import unittest
-import collections
 from unittest import mock
 
 from test import support

Lib/test/test_positional_only_arg.py

@@ -3,7 +3,6 @@
 import dis
 import pickle
 import unittest
-import sys
 
 from test.support import check_syntax_error, use_old_parser
 

Lib/test/test_pstats.py

@@ -5,7 +5,6 @@
 from pstats import SortKey
 
 import pstats
-import time
 import cProfile
 
 class AddCallersTestCase(unittest.TestCase):

Lib/test/test_re.py

@@ -2217,7 +2217,7 @@ def test_re_benchmarks(self):
 
     def test_re_tests(self):
         're_tests test suite'
-        from test.re_tests import tests, SUCCEED, FAIL, SYNTAX_ERROR
+        from test.re_tests import tests, FAIL, SYNTAX_ERROR
         for t in tests:
             pattern = s = outcome = repl = expected = None
             if len(t) == 5:

Lib/test/test_regrtest.py

@@ -5,7 +5,6 @@
 """
 
 import contextlib
-import faulthandler
 import glob
 import io
 import os.path

Lib/test/test_string_literals.py

@@ -33,7 +33,7 @@
 import tempfile
 import unittest
 import warnings
-from test.support import check_syntax_warning, use_old_parser
+from test.support import use_old_parser
 
 
 TEMPLATE = r"""# coding: %s

Lib/test/test_support.py

@@ -1,4 +1,3 @@
-import contextlib
 import errno
 import importlib
 import io

Lib/test/test_syntax.py

@@ -644,7 +644,6 @@
 """
 
 import re
-import sys
 import unittest
 
 from test import support

Lib/test/test_tempfile.py

@@ -4,7 +4,6 @@
 import io
 import os
 import pathlib
-import signal
 import sys
 import re
 import warnings

Lib/test/test_tools/test_c_analyzer/test_parser/test_preprocessor.py

@@ -1,4 +1,3 @@
-import itertools
 import textwrap
 import unittest
 import sys

Lib/test/test_tools/test_lll.py

@@ -1,7 +1,6 @@
 """Tests for the lll script in the Tools/script directory."""
 
 import os
-import sys
 import tempfile
 from test import support
 from test.test_tools import skip_if_missing, import_tool

Lib/test/test_tools/test_pathfix.py

@@ -3,7 +3,7 @@
 import sys
 import unittest
 from test import support
-from test.test_tools import import_tool, scriptsdir, skip_if_missing
+from test.test_tools import scriptsdir, skip_if_missing
 
 
 # need Tools/script/ directory: skip if run on Python installed on the system

Lib/test/test_typing.py

@@ -3,7 +3,7 @@
 import pickle
 import re
 import sys
-from unittest import TestCase, main, skipUnless, SkipTest, skip
+from unittest import TestCase, main, skipUnless, skip
 from copy import copy, deepcopy
 
 from typing import Any, NoReturn

Lib/test/test_unparse.py

@@ -6,7 +6,6 @@
 import random
 import tokenize
 import ast
-import sys
 
 
 def read_pyfile(filename):

Lib/test/test_uuid.py

@@ -6,8 +6,6 @@
 import io
 import os
 import pickle
-import shutil
-import subprocess
 import sys
 import weakref
 from unittest import mock