diff --git a/Lib/distutils/bcppcompiler.py b/Lib/distutils/bcppcompiler.py
index c5e5cd2..77d94a5 100644
--- a/Lib/distutils/bcppcompiler.py
+++ b/Lib/distutils/bcppcompiler.py
@@ -13,13 +13,11 @@
 
 __revision__ = "$Id$"
 
-
 import os
-from distutils.errors import \
-     DistutilsExecError, DistutilsPlatformError, \
-     CompileError, LibError, LinkError, UnknownFileError
-from distutils.ccompiler import \
-     CCompiler, gen_preprocess_options, gen_lib_options
+
+from distutils.errors import (DistutilsExecError, CompileError, LibError,
+                              LinkError, UnknownFileError)
+from distutils.ccompiler import CCompiler, gen_preprocess_options
 from distutils.file_util import write_file
 from distutils.dep_util import newer
 from distutils import log
diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py
index ff7f9df..407cabd 100644
--- a/Lib/distutils/ccompiler.py
+++ b/Lib/distutils/ccompiler.py
@@ -5,8 +5,11 @@
 
 __revision__ = "$Id$"
 
-import sys, os, re
-from distutils.errors import *
+import sys
+import os
+import re
+
+from distutils.errors import CompileError, LinkError, UnknownFileError
 from distutils.spawn import spawn
 from distutils.file_util import move_file
 from distutils.dir_util import mkpath
diff --git a/Lib/distutils/command/bdist.py b/Lib/distutils/command/bdist.py
index 2c81f3a..dd202ff 100644
--- a/Lib/distutils/command/bdist.py
+++ b/Lib/distutils/command/bdist.py
@@ -6,8 +6,9 @@
 __revision__ = "$Id$"
 
 import os
+
 from distutils.core import Command
-from distutils.errors import *
+from distutils.errors import DistutilsPlatformError, DistutilsOptionError
 from distutils.util import get_platform
 
 
diff --git a/Lib/distutils/command/bdist_msi.py b/Lib/distutils/command/bdist_msi.py
index c4be47b..f920548 100644
--- a/Lib/distutils/command/bdist_msi.py
+++ b/Lib/distutils/command/bdist_msi.py
@@ -28,7 +28,6 @@
         default, cancel, bitmap=true)"""
         Dialog.__init__(self, *args)
         ruler = self.h - 36
-        bmwidth = 152*ruler/328
         #if kw.get("bitmap", True):
         #    self.bitmap("Bitmap", 0, 0, bmwidth, ruler, "PythonWin")
         self.line("BottomLine", 0, ruler, self.w, 0)
@@ -419,7 +418,6 @@
         # see "Dialog Style Bits"
         modal = 3      # visible | modal
         modeless = 1   # visible
-        track_disk_space = 32
 
         # UI customization properties
         add_data(db, "Property",
diff --git a/Lib/distutils/command/bdist_rpm.py b/Lib/distutils/command/bdist_rpm.py
index 452f950..0a579db 100644
--- a/Lib/distutils/command/bdist_rpm.py
+++ b/Lib/distutils/command/bdist_rpm.py
@@ -5,13 +5,14 @@
 
 __revision__ = "$Id$"
 
-import sys, os
+import sys
+import 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
+from distutils.errors import (DistutilsOptionError, DistutilsPlatformError,
+                              DistutilsFileError, DistutilsExecError)
 from distutils import log
 
 class bdist_rpm(Command):
diff --git a/Lib/distutils/command/bdist_wininst.py b/Lib/distutils/command/bdist_wininst.py
index d6d01c6..0b7044a 100644
--- a/Lib/distutils/command/bdist_wininst.py
+++ b/Lib/distutils/command/bdist_wininst.py
@@ -5,11 +5,13 @@
 
 __revision__ = "$Id$"
 
-import sys, os
+import sys
+import os
+
 from distutils.core import Command
 from distutils.util import get_platform
-from distutils.dir_util import create_tree, remove_tree
-from distutils.errors import *
+from distutils.dir_util import remove_tree
+from distutils.errors import DistutilsOptionError, DistutilsPlatformError
 from distutils.sysconfig import get_python_version
 from distutils import log
 
diff --git a/Lib/distutils/command/build_clib.py b/Lib/distutils/command/build_clib.py
index 258d7c1..12bf1d2 100644
--- a/Lib/distutils/command/build_clib.py
+++ b/Lib/distutils/command/build_clib.py
@@ -18,7 +18,7 @@
 
 import os
 from distutils.core import Command
-from distutils.errors import *
+from distutils.errors import DistutilsSetupError
 from distutils.sysconfig import customize_compiler
 from distutils import log
 
diff --git a/Lib/distutils/command/build_ext.py b/Lib/distutils/command/build_ext.py
index 70dd81f..de980bd 100644
--- a/Lib/distutils/command/build_ext.py
+++ b/Lib/distutils/command/build_ext.py
@@ -10,7 +10,8 @@
 from warnings import warn
 
 from distutils.core import Command
-from distutils.errors import *
+from distutils.errors import (CCompilerError, DistutilsError, CompileError,
+                              DistutilsSetupError, DistutilsPlatformError)
 from distutils.sysconfig import customize_compiler, get_python_version
 from distutils.dep_util import newer_group
 from distutils.extension import Extension
diff --git a/Lib/distutils/command/build_py.py b/Lib/distutils/command/build_py.py
index fa08579..7cc9353 100644
--- a/Lib/distutils/command/build_py.py
+++ b/Lib/distutils/command/build_py.py
@@ -133,7 +133,6 @@
 
     def build_package_data(self):
         """Copy data files into build directory"""
-        lastdir = None
         for package, src_dir, build_dir, filenames in self.data_files:
             for filename in filenames:
                 target = os.path.join(build_dir, filename)
diff --git a/Lib/distutils/command/config.py b/Lib/distutils/command/config.py
index ac80a54..830552c 100644
--- a/Lib/distutils/command/config.py
+++ b/Lib/distutils/command/config.py
@@ -11,7 +11,8 @@
 
 __revision__ = "$Id$"
 
-import sys, os, re
+import os
+import re
 
 from distutils.core import Command
 from distutils.errors import DistutilsExecError
diff --git a/Lib/distutils/command/register.py b/Lib/distutils/command/register.py
index bdf5f8f..7d3dc53 100644
--- a/Lib/distutils/command/register.py
+++ b/Lib/distutils/command/register.py
@@ -7,13 +7,15 @@
 
 __revision__ = "$Id$"
 
-import os, string, getpass
+import os
+import string
+import getpass
 import io
-import urllib.parse, urllib.request
+import urllib.parse
+import urllib.request
 from warnings import warn
 
 from distutils.core import PyPIRCCommand
-from distutils.errors import *
 from distutils import log
 
 class register(PyPIRCCommand):
diff --git a/Lib/distutils/command/sdist.py b/Lib/distutils/command/sdist.py
index 76e1de8..f33406c 100644
--- a/Lib/distutils/command/sdist.py
+++ b/Lib/distutils/command/sdist.py
@@ -7,14 +7,14 @@
 import os
 import string
 import sys
-from types import *
 from glob import glob
 from warnings import warn
 
 from distutils.core import Command
 from distutils import dir_util, dep_util, file_util, archive_util
 from distutils.text_file import TextFile
-from distutils.errors import *
+from distutils.errors import (DistutilsPlatformError, DistutilsOptionError,
+                              DistutilsTemplateError)
 from distutils.filelist import FileList
 from distutils import log
 from distutils.util import convert_path
diff --git a/Lib/distutils/command/upload.py b/Lib/distutils/command/upload.py
index 674edd4..bb1b7fc 100644
--- a/Lib/distutils/command/upload.py
+++ b/Lib/distutils/command/upload.py
@@ -1,8 +1,8 @@
 """distutils.command.upload
 
 Implements the Distutils 'upload' subcommand (upload package to PyPI)."""
-import sys
-import os, io
+import os
+import io
 import socket
 import platform
 from urllib.request import urlopen, Request, HTTPError
@@ -10,7 +10,7 @@
 from urllib.parse import urlparse
 from hashlib import md5
 
-from distutils.errors import *
+from distutils.errors import DistutilsOptionError
 from distutils.core import PyPIRCCommand
 from distutils.spawn import spawn
 from distutils import log
diff --git a/Lib/distutils/config.py b/Lib/distutils/config.py
index 5b625f3..fe41ce9 100644
--- a/Lib/distutils/config.py
+++ b/Lib/distutils/config.py
@@ -4,7 +4,6 @@
 that uses .pypirc in the distutils.command package.
 """
 import os
-import sys
 from configparser import ConfigParser
 
 from distutils.cmd import Command
@@ -60,8 +59,6 @@
         if os.path.exists(rc):
             self.announce('Using PyPI login from %s' % rc)
             repository = self.repository or self.DEFAULT_REPOSITORY
-            realm = self.realm or self.DEFAULT_REALM
-
             config = ConfigParser()
             config.read(rc)
             sections = config.sections()
diff --git a/Lib/distutils/core.py b/Lib/distutils/core.py
index 95c0357..c820a42 100644
--- a/Lib/distutils/core.py
+++ b/Lib/distutils/core.py
@@ -8,10 +8,12 @@
 
 __revision__ = "$Id$"
 
-import sys, os
+import sys
+import os
 
 from distutils.debug import DEBUG
-from distutils.errors import *
+from distutils.errors import (DistutilsSetupError, DistutilsArgError,
+                              DistutilsError, CCompilerError)
 from distutils.util import grok_environment_error
 
 # Mainly import these so setup scripts can "from distutils.core import" them.
@@ -31,7 +33,7 @@
    or: %(script)s cmd --help
 """
 
-def gen_usage (script_name):
+def gen_usage(script_name):
     script = os.path.basename(script_name)
     return USAGE % vars()
 
@@ -56,7 +58,7 @@
                       'extra_objects', 'extra_compile_args', 'extra_link_args',
                       'swig_opts', 'export_symbols', 'depends', 'language')
 
-def setup (**attrs):
+def setup(**attrs):
     """The gateway to the Distutils: do everything your setup script needs
     to do, in a highly flexible and user-driven way.  Briefly: create a
     Distribution instance; find and parse config files; parse the command
@@ -168,10 +170,8 @@
 
     return dist
 
-# setup ()
 
-
-def run_setup (script_name, script_args=None, stop_after="run"):
+def run_setup(script_name, script_args=None, stop_after="run"):
     """Run a setup script in a somewhat controlled environment, and
     return the Distribution instance that drives things.  This is useful
     if you need to find out the distribution meta-data (passed as
@@ -234,7 +234,4 @@
 
     # I wonder if the setup script's namespace -- g and l -- would be of
     # any interest to callers?
-    #print "_setup_distribution:", _setup_distribution
     return _setup_distribution
-
-# run_setup ()
diff --git a/Lib/distutils/cygwinccompiler.py b/Lib/distutils/cygwinccompiler.py
index d9f4a43..3e2a634 100644
--- a/Lib/distutils/cygwinccompiler.py
+++ b/Lib/distutils/cygwinccompiler.py
@@ -53,11 +53,9 @@
 import re
 from warnings import warn
 
-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, CompileError, UnknownFileError
-from distutils import log
 from distutils.util import get_compiler_versions
 
 def get_msvcr():
diff --git a/Lib/distutils/dir_util.py b/Lib/distutils/dir_util.py
index 98e6252..370025b 100644
--- a/Lib/distutils/dir_util.py
+++ b/Lib/distutils/dir_util.py
@@ -4,7 +4,7 @@
 
 __revision__ = "$Id$"
 
-import os, sys
+import os
 from distutils.errors import DistutilsFileError, DistutilsInternalError
 from distutils import log
 
diff --git a/Lib/distutils/dist.py b/Lib/distutils/dist.py
index 353525e..5a107e7 100644
--- a/Lib/distutils/dist.py
+++ b/Lib/distutils/dist.py
@@ -14,7 +14,8 @@
 except ImportError:
     warnings = None
 
-from distutils.errors import *
+from distutils.errors import (DistutilsOptionError, DistutilsArgError,
+                              DistutilsModuleError, DistutilsClassError)
 from distutils.fancy_getopt import FancyGetopt, translate_longopt
 from distutils.util import check_environ, strtobool, rfc822_escape
 from distutils import log
diff --git a/Lib/distutils/emxccompiler.py b/Lib/distutils/emxccompiler.py
index 50634d6..fd79aec 100644
--- a/Lib/distutils/emxccompiler.py
+++ b/Lib/distutils/emxccompiler.py
@@ -24,11 +24,9 @@
 import os, sys, copy
 from warnings import warn
 
-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, CompileError, UnknownFileError
-from distutils import log
 from distutils.util import get_compiler_versions
 
 class EMXCCompiler (UnixCCompiler):
diff --git a/Lib/distutils/extension.py b/Lib/distutils/extension.py
index 5c07bda..10aaf7c 100644
--- a/Lib/distutils/extension.py
+++ b/Lib/distutils/extension.py
@@ -6,7 +6,6 @@
 __revision__ = "$Id$"
 
 import os
-import sys
 import warnings
 
 # This class is really only used by the "build_ext" command, so it might
diff --git a/Lib/distutils/fancy_getopt.py b/Lib/distutils/fancy_getopt.py
index 879d4d2..73343ad 100644
--- a/Lib/distutils/fancy_getopt.py
+++ b/Lib/distutils/fancy_getopt.py
@@ -10,9 +10,11 @@
 
 __revision__ = "$Id$"
 
-import sys, string, re
+import sys
+import string
+import re
 import getopt
-from distutils.errors import *
+from distutils.errors import DistutilsGetoptError, DistutilsArgError
 
 # Much like command_re in distutils.core, this is close to but not quite
 # the same as a Python NAME -- except, in the spirit of most GNU
@@ -444,16 +446,3 @@
         'options' will be initialized to None."""
         for opt in options:
             setattr(self, opt, None)
-
-
-if __name__ == "__main__":
-    text = """\
-Tra-la-la, supercalifragilisticexpialidocious.
-How *do* you spell that odd word, anyways?
-(Someone ask Mary -- she'll know [or she'll
-say, "How should I know?"].)"""
-
-    for w in (10, 20, 30, 40):
-        print("width: %d" % w)
-        print("\n".join(wrap_text(text, w)))
-        print()
diff --git a/Lib/distutils/msvc9compiler.py b/Lib/distutils/msvc9compiler.py
index c84fb0b..4d05a44 100644
--- a/Lib/distutils/msvc9compiler.py
+++ b/Lib/distutils/msvc9compiler.py
@@ -19,10 +19,9 @@
 import sys
 import re
 
-from distutils.errors import DistutilsExecError, DistutilsPlatformError, \
-                             CompileError, LibError, LinkError
-from distutils.ccompiler import CCompiler, gen_preprocess_options, \
-                                gen_lib_options
+from distutils.errors import (DistutilsExecError, DistutilsPlatformError,
+                              CompileError, LibError, LinkError)
+from distutils.ccompiler import CCompiler, gen_lib_options
 from distutils import log
 from distutils.util import get_platform
 
diff --git a/Lib/distutils/msvccompiler.py b/Lib/distutils/msvccompiler.py
index 1cd0f91..dc3bd8d 100644
--- a/Lib/distutils/msvccompiler.py
+++ b/Lib/distutils/msvccompiler.py
@@ -10,12 +10,12 @@
 
 __revision__ = "$Id$"
 
-import sys, os
-from distutils.errors import \
-     DistutilsExecError, DistutilsPlatformError, \
-     CompileError, LibError, LinkError
-from distutils.ccompiler import \
-     CCompiler, gen_preprocess_options, gen_lib_options
+import sys
+import os
+
+from distutils.errors import (DistutilsExecError, DistutilsPlatformError,
+                              CompileError, LibError, LinkError)
+from distutils.ccompiler import CCompiler, gen_lib_options
 from distutils import log
 
 _can_read_reg = False
@@ -124,7 +124,7 @@
                 self.set_macro("FrameworkSDKDir", net, "sdkinstallrootv1.1")
             else:
                 self.set_macro("FrameworkSDKDir", net, "sdkinstallroot")
-        except KeyError as exc: #
+        except KeyError:
             raise DistutilsPlatformError(
             """Python was built with Visual Studio 2003;
 extensions must be built with a compiler than can generate compatible binaries.
diff --git a/Lib/distutils/text_file.py b/Lib/distutils/text_file.py
index 97459fb..53c8561 100644
--- a/Lib/distutils/text_file.py
+++ b/Lib/distutils/text_file.py
@@ -6,8 +6,8 @@
 
 __revision__ = "$Id$"
 
-import sys, os, io
-
+import sys
+import io
 
 class TextFile:
     """Provides a file-like object that takes care of all the things you