bpo-40443: Remove unused imports in distutils (GH-19802)

_msvccompiler.py

@@ -14,8 +14,6 @@ for older versions in distutils.msvc9compiler and distutils.msvccompiler.
 # ported to VS 2015 by Steve Dower
 
 import os
-import shutil
-import stat
 import subprocess
 import winreg
 
@@ -65,8 +63,6 @@ def _find_vc2017():
     If vswhere.exe is not available, by definition, VS 2017 is not
     installed.
     """
-    import json
-
     root = os.environ.get("ProgramFiles(x86)") or os.environ.get("ProgramFiles")
     if not root:
         return None, None

bcppcompiler.py

@@ -14,10 +14,10 @@ for the Borland C++ compiler.
 
 import os
 from distutils.errors import \
-     DistutilsExecError, DistutilsPlatformError, \
+     DistutilsExecError, \
      CompileError, LibError, LinkError, UnknownFileError
 from distutils.ccompiler import \
-     CCompiler, gen_preprocess_options, gen_lib_options
+     CCompiler, gen_preprocess_options
 from distutils.file_util import write_file
 from distutils.dep_util import newer
 from distutils import log

ccompiler.py

@@ -8,7 +8,7 @@ from distutils.errors import *
 from distutils.spawn import spawn
 from distutils.file_util import move_file
 from distutils.dir_util import mkpath
-from distutils.dep_util import newer_pairwise, newer_group
+from distutils.dep_util import newer_group
 from distutils.util import split_quoted, execute
 from distutils import log
 

command/bdist_rpm.py

@@ -6,7 +6,6 @@ distributions)."""
 import subprocess, sys, os
 from distutils.core import Command
 from distutils.debug import DEBUG
-from distutils.util import get_platform
 from distutils.file_util import write_file
 from distutils.errors import *
 from distutils.sysconfig import get_python_version

command/bdist_wininst.py

@@ -8,7 +8,7 @@ import sys
 import warnings
 from distutils.core import Command
 from distutils.util import get_platform
-from distutils.dir_util import create_tree, remove_tree
+from distutils.dir_util import remove_tree
 from distutils.errors import *
 from distutils.sysconfig import get_python_version
 from distutils import log

command/check.py

@@ -11,7 +11,6 @@ try:
     from docutils.parsers.rst import Parser
     from docutils import frontend
     from docutils import nodes
-    from io import StringIO
 
     class SilentReporter(Reporter):
 

command/upload.py

@@ -7,7 +7,6 @@ index).
 
 import os
 import io
-import platform
 import hashlib
 from base64 import standard_b64encode
 from urllib.request import urlopen, Request, HTTPError

cygwinccompiler.py

@@ -51,12 +51,10 @@ import copy
 from subprocess import Popen, PIPE, check_output
 import re
 
-from distutils.ccompiler import gen_preprocess_options, gen_lib_options
 from distutils.unixccompiler import UnixCCompiler
 from distutils.file_util import write_file
 from distutils.errors import (DistutilsExecError, CCompilerError,
         CompileError, UnknownFileError)
-from distutils import log
 from distutils.version import LooseVersion
 from distutils.spawn import find_executable
 

msvc9compiler.py

@@ -19,8 +19,7 @@ import re
 
 from distutils.errors import DistutilsExecError, DistutilsPlatformError, \
                              CompileError, LibError, LinkError
-from distutils.ccompiler import CCompiler, gen_preprocess_options, \
-                                gen_lib_options
+from distutils.ccompiler import CCompiler, gen_lib_options
 from distutils import log
 from distutils.util import get_platform
 

msvccompiler.py

@@ -13,7 +13,7 @@ from distutils.errors import \
      DistutilsExecError, DistutilsPlatformError, \
      CompileError, LibError, LinkError
 from distutils.ccompiler import \
-     CCompiler, gen_preprocess_options, gen_lib_options
+     CCompiler, gen_lib_options
 from distutils import log
 
 _can_read_reg = False

sysconfig.py

@@ -15,7 +15,6 @@ import re
 import sys
 
 from .errors import DistutilsPlatformError
-from .util import get_platform, get_host_platform
 
 # These are needed in a couple of spots, so just compute them once.
 PREFIX = os.path.normpath(sys.prefix)