IGNIETFERRO-1816 Update Python 3 from 3.9.12 to 3.10.4

ref:9f96be6d02ee8044fdd6f124b799b270c20ce641

9 files changed, 268 insertions, 821 deletions

diff --git a/contrib/tools/python3/src/Lib/distutils/__init__.py b/contrib/tools/python3/src/Lib/distutils/__init__.py
index d823d040a1c..fdad6f65a78 100644
--- a/contrib/tools/python3/src/Lib/distutils/__init__.py
+++ b/contrib/tools/python3/src/Lib/distutils/__init__.py
@@ -9,5 +9,12 @@ used from a setup script as
 """
 
 import sys
+import warnings
 
 __version__ = sys.version[:sys.version.index(' ')]
+
+_DEPRECATION_MESSAGE = ("The distutils package is deprecated and slated for "
+                        "removal in Python 3.12. Use setuptools or check "
+                        "PEP 632 for potential alternatives")
+warnings.warn(_DEPRECATION_MESSAGE,
+              DeprecationWarning, 2)
diff --git a/contrib/tools/python3/src/Lib/distutils/command/__init__.py b/contrib/tools/python3/src/Lib/distutils/command/__init__.py
index 481eea9fd4b..fd0bfae7ade 100644
--- a/contrib/tools/python3/src/Lib/distutils/command/__init__.py
+++ b/contrib/tools/python3/src/Lib/distutils/command/__init__.py
@@ -19,7 +19,6 @@ __all__ = ['build',
            'bdist',
            'bdist_dumb',
            'bdist_rpm',
-           'bdist_wininst',
            'check',
            'upload',
            # These two are reserved for future use:
diff --git a/contrib/tools/python3/src/Lib/distutils/command/bdist.py b/contrib/tools/python3/src/Lib/distutils/command/bdist.py
index 014871d280e..d580a8090bd 100644
--- a/contrib/tools/python3/src/Lib/distutils/command/bdist.py
+++ b/contrib/tools/python3/src/Lib/distutils/command/bdist.py
@@ -62,7 +62,7 @@ class bdist(Command):
 
     # Establish the preferred order (for the --help-formats option).
     format_commands = ['rpm', 'gztar', 'bztar', 'xztar', 'ztar', 'tar',
-                       'wininst', 'zip', 'msi']
+                       'zip', 'msi']
 
     # And the real information.
     format_command = {'rpm':   ('bdist_rpm',  "RPM distribution"),
@@ -71,8 +71,6 @@ class bdist(Command):
                       'xztar': ('bdist_dumb', "xz'ed tar file"),
                       'ztar':  ('bdist_dumb', "compressed tar file"),
                       'tar':   ('bdist_dumb', "tar file"),
-                      'wininst': ('bdist_wininst',
-                                  "Windows executable installer"),
                       'zip':   ('bdist_dumb', "ZIP file"),
                       'msi':   ('bdist_msi',  "Microsoft Installer")
                       }
diff --git a/contrib/tools/python3/src/Lib/distutils/command/bdist_msi.py b/contrib/tools/python3/src/Lib/distutils/command/bdist_msi.py
index 0863a1883e7..2ed017b4d66 100644
--- a/contrib/tools/python3/src/Lib/distutils/command/bdist_msi.py
+++ b/contrib/tools/python3/src/Lib/distutils/command/bdist_msi.py
@@ -1,7 +1,5 @@
 # Copyright (C) 2005, 2006 Martin von Löwis
 # Licensed to PSF under a Contributor Agreement.
-# The bdist_wininst command proper
-# based on bdist_wininst
 """
 Implements the bdist_msi command.
 """
diff --git a/contrib/tools/python3/src/Lib/distutils/command/bdist_wininst.py b/contrib/tools/python3/src/Lib/distutils/command/bdist_wininst.py
deleted file mode 100644
index 0e9ddaa2141..00000000000
--- a/contrib/tools/python3/src/Lib/distutils/command/bdist_wininst.py
+++ /dev/null
@@ -1,377 +0,0 @@
-"""distutils.command.bdist_wininst
-
-Implements the Distutils 'bdist_wininst' command: create a windows installer
-exe-program."""
-
-import os
-import sys
-import warnings
-from distutils.core import Command
-from distutils.util import get_platform
-from distutils.dir_util import remove_tree
-from distutils.errors import *
-from distutils.sysconfig import get_python_version
-from distutils import log
-
-class bdist_wininst(Command):
-
-    description = "create an executable installer for MS Windows"
-
-    user_options = [('bdist-dir=', None,
-                     "temporary directory for creating the distribution"),
-                    ('plat-name=', 'p',
-                     "platform name to embed in generated filenames "
-                     "(default: %s)" % get_platform()),
-                    ('keep-temp', 'k',
-                     "keep the pseudo-installation tree around after " +
-                     "creating the distribution archive"),
-                    ('target-version=', None,
-                     "require a specific python version" +
-                     " on the target system"),
-                    ('no-target-compile', 'c',
-                     "do not compile .py to .pyc on the target system"),
-                    ('no-target-optimize', 'o',
-                     "do not compile .py to .pyo (optimized) "
-                     "on the target system"),
-                    ('dist-dir=', 'd',
-                     "directory to put final built distributions in"),
-                    ('bitmap=', 'b',
-                     "bitmap to use for the installer instead of python-powered logo"),
-                    ('title=', 't',
-                     "title to display on the installer background instead of default"),
-                    ('skip-build', None,
-                     "skip rebuilding everything (for testing/debugging)"),
-                    ('install-script=', None,
-                     "basename of installation script to be run after "
-                     "installation or before deinstallation"),
-                    ('pre-install-script=', None,
-                     "Fully qualified filename of a script to be run before "
-                     "any files are installed.  This script need not be in the "
-                     "distribution"),
-                    ('user-access-control=', None,
-                     "specify Vista's UAC handling - 'none'/default=no "
-                     "handling, 'auto'=use UAC if target Python installed for "
-                     "all users, 'force'=always use UAC"),
-                   ]
-
-    boolean_options = ['keep-temp', 'no-target-compile', 'no-target-optimize',
-                       'skip-build']
-
-    # bpo-10945: bdist_wininst requires mbcs encoding only available on Windows
-    _unsupported = (sys.platform != "win32")
-
-    def __init__(self, *args, **kw):
-        super().__init__(*args, **kw)
-        warnings.warn("bdist_wininst command is deprecated since Python 3.8, "
-                      "use bdist_wheel (wheel packages) instead",
-                      DeprecationWarning, 2)
-
-    def initialize_options(self):
-        self.bdist_dir = None
-        self.plat_name = None
-        self.keep_temp = 0
-        self.no_target_compile = 0
-        self.no_target_optimize = 0
-        self.target_version = None
-        self.dist_dir = None
-        self.bitmap = None
-        self.title = None
-        self.skip_build = None
-        self.install_script = None
-        self.pre_install_script = None
-        self.user_access_control = None
-
-
-    def finalize_options(self):
-        self.set_undefined_options('bdist', ('skip_build', 'skip_build'))
-
-        if self.bdist_dir is None:
-            if self.skip_build and self.plat_name:
-                # If build is skipped and plat_name is overridden, bdist will
-                # not see the correct 'plat_name' - so set that up manually.
-                bdist = self.distribution.get_command_obj('bdist')
-                bdist.plat_name = self.plat_name
-                # next the command will be initialized using that name
-            bdist_base = self.get_finalized_command('bdist').bdist_base
-            self.bdist_dir = os.path.join(bdist_base, 'wininst')
-
-        if not self.target_version:
-            self.target_version = ""
-
-        if not self.skip_build and self.distribution.has_ext_modules():
-            short_version = get_python_version()
-            if self.target_version and self.target_version != short_version:
-                raise DistutilsOptionError(
-                      "target version can only be %s, or the '--skip-build'" \
-                      " option must be specified" % (short_version,))
-            self.target_version = short_version
-
-        self.set_undefined_options('bdist',
-                                   ('dist_dir', 'dist_dir'),
-                                   ('plat_name', 'plat_name'),
-                                  )
-
-        if self.install_script:
-            for script in self.distribution.scripts:
-                if self.install_script == os.path.basename(script):
-                    break
-            else:
-                raise DistutilsOptionError(
-                      "install_script '%s' not found in scripts"
-                      % self.install_script)
-
-    def run(self):
-        if (sys.platform != "win32" and
-            (self.distribution.has_ext_modules() or
-             self.distribution.has_c_libraries())):
-            raise DistutilsPlatformError \
-                  ("distribution contains extensions and/or C libraries; "
-                   "must be compiled on a Windows 32 platform")
-
-        if not self.skip_build:
-            self.run_command('build')
-
-        install = self.reinitialize_command('install', reinit_subcommands=1)
-        install.root = self.bdist_dir
-        install.skip_build = self.skip_build
-        install.warn_dir = 0
-        install.plat_name = self.plat_name
-
-        install_lib = self.reinitialize_command('install_lib')
-        # we do not want to include pyc or pyo files
-        install_lib.compile = 0
-        install_lib.optimize = 0
-
-        if self.distribution.has_ext_modules():
-            # If we are building an installer for a Python version other
-            # than the one we are currently running, then we need to ensure
-            # our build_lib reflects the other Python version rather than ours.
-            # Note that for target_version!=sys.version, we must have skipped the
-            # build step, so there is no issue with enforcing the build of this
-            # version.
-            target_version = self.target_version
-            if not target_version:
-                assert self.skip_build, "Should have already checked this"
-                target_version = '%d.%d' % sys.version_info[:2]
-            plat_specifier = ".%s-%s" % (self.plat_name, target_version)
-            build = self.get_finalized_command('build')
-            build.build_lib = os.path.join(build.build_base,
-                                           'lib' + plat_specifier)
-
-        # Use a custom scheme for the zip-file, because we have to decide
-        # at installation time which scheme to use.
-        for key in ('purelib', 'platlib', 'headers', 'scripts', 'data'):
-            value = key.upper()
-            if key == 'headers':
-                value = value + '/Include/$dist_name'
-            setattr(install,
-                    'install_' + key,
-                    value)
-
-        log.info("installing to %s", self.bdist_dir)
-        install.ensure_finalized()
-
-        # avoid warning of 'install_lib' about installing
-        # into a directory not in sys.path
-        sys.path.insert(0, os.path.join(self.bdist_dir, 'PURELIB'))
-
-        install.run()
-
-        del sys.path[0]
-
-        # And make an archive relative to the root of the
-        # pseudo-installation tree.
-        from tempfile import mktemp
-        archive_basename = mktemp()
-        fullname = self.distribution.get_fullname()
-        arcname = self.make_archive(archive_basename, "zip",
-                                    root_dir=self.bdist_dir)
-        # create an exe containing the zip-file
-        self.create_exe(arcname, fullname, self.bitmap)
-        if self.distribution.has_ext_modules():
-            pyversion = get_python_version()
-        else:
-            pyversion = 'any'
-        self.distribution.dist_files.append(('bdist_wininst', pyversion,
-                                             self.get_installer_filename(fullname)))
-        # remove the zip-file again
-        log.debug("removing temporary file '%s'", arcname)
-        os.remove(arcname)
-
-        if not self.keep_temp:
-            remove_tree(self.bdist_dir, dry_run=self.dry_run)
-
-    def get_inidata(self):
-        # Return data describing the installation.
-        lines = []
-        metadata = self.distribution.metadata
-
-        # Write the [metadata] section.
-        lines.append("[metadata]")
-
-        # 'info' will be displayed in the installer's dialog box,
-        # describing the items to be installed.
-        info = (metadata.long_description or '') + '\n'
-
-        # Escape newline characters
-        def escape(s):
-            return s.replace("\n", "\\n")
-
-        for name in ["author", "author_email", "description", "maintainer",
-                     "maintainer_email", "name", "url", "version"]:
-            data = getattr(metadata, name, "")
-            if data:
-                info = info + ("\n    %s: %s" % \
-                               (name.capitalize(), escape(data)))
-                lines.append("%s=%s" % (name, escape(data)))
-
-        # The [setup] section contains entries controlling
-        # the installer runtime.
-        lines.append("\n[Setup]")
-        if self.install_script:
-            lines.append("install_script=%s" % self.install_script)
-        lines.append("info=%s" % escape(info))
-        lines.append("target_compile=%d" % (not self.no_target_compile))
-        lines.append("target_optimize=%d" % (not self.no_target_optimize))
-        if self.target_version:
-            lines.append("target_version=%s" % self.target_version)
-        if self.user_access_control:
-            lines.append("user_access_control=%s" % self.user_access_control)
-
-        title = self.title or self.distribution.get_fullname()
-        lines.append("title=%s" % escape(title))
-        import time
-        import distutils
-        build_info = "Built %s with distutils-%s" % \
-                     (time.ctime(time.time()), distutils.__version__)
-        lines.append("build_info=%s" % build_info)
-        return "\n".join(lines)
-
-    def create_exe(self, arcname, fullname, bitmap=None):
-        import struct
-
-        self.mkpath(self.dist_dir)
-
-        cfgdata = self.get_inidata()
-
-        installer_name = self.get_installer_filename(fullname)
-        self.announce("creating %s" % installer_name)
-
-        if bitmap:
-            with open(bitmap, "rb") as f:
-                bitmapdata = f.read()
-            bitmaplen = len(bitmapdata)
-        else:
-            bitmaplen = 0
-
-        with open(installer_name, "wb") as file:
-            file.write(self.get_exe_bytes())
-            if bitmap:
-                file.write(bitmapdata)
-
-            # Convert cfgdata from unicode to ascii, mbcs encoded
-            if isinstance(cfgdata, str):
-                cfgdata = cfgdata.encode("mbcs")
-
-            # Append the pre-install script
-            cfgdata = cfgdata + b"\0"
-            if self.pre_install_script:
-                # We need to normalize newlines, so we open in text mode and
-                # convert back to bytes. "latin-1" simply avoids any possible
-                # failures.
-                with open(self.pre_install_script, "r",
-                          encoding="latin-1") as script:
-                    script_data = script.read().encode("latin-1")
-                cfgdata = cfgdata + script_data + b"\n\0"
-            else:
-                # empty pre-install script
-                cfgdata = cfgdata + b"\0"
-            file.write(cfgdata)
-
-            # The 'magic number' 0x1234567B is used to make sure that the
-            # binary layout of 'cfgdata' is what the wininst.exe binary
-            # expects.  If the layout changes, increment that number, make
-            # the corresponding changes to the wininst.exe sources, and
-            # recompile them.
-            header = struct.pack("<iii",
-                                0x1234567B,       # tag
-                                len(cfgdata),     # length
-                                bitmaplen,        # number of bytes in bitmap
-                                )
-            file.write(header)
-            with open(arcname, "rb") as f:
-                file.write(f.read())
-
-    def get_installer_filename(self, fullname):
-        # Factored out to allow overriding in subclasses
-        if self.target_version:
-            # if we create an installer for a specific python version,
-            # it's better to include this in the name
-            installer_name = os.path.join(self.dist_dir,
-                                          "%s.%s-py%s.exe" %
-                                           (fullname, self.plat_name, self.target_version))
-        else:
-            installer_name = os.path.join(self.dist_dir,
-                                          "%s.%s.exe" % (fullname, self.plat_name))
-        return installer_name
-
-    def get_exe_bytes(self):
-        # If a target-version other than the current version has been
-        # specified, then using the MSVC version from *this* build is no good.
-        # Without actually finding and executing the target version and parsing
-        # its sys.version, we just hard-code our knowledge of old versions.
-        # NOTE: Possible alternative is to allow "--target-version" to
-        # specify a Python executable rather than a simple version string.
-        # We can then execute this program to obtain any info we need, such
-        # as the real sys.version string for the build.
-        cur_version = get_python_version()
-
-        # If the target version is *later* than us, then we assume they
-        # use what we use
-        # string compares seem wrong, but are what sysconfig.py itself uses
-        if self.target_version and self.target_version < cur_version:
-            if self.target_version < "2.4":
-                bv = '6.0'
-            elif self.target_version == "2.4":
-                bv = '7.1'
-            elif self.target_version == "2.5":
-                bv = '8.0'
-            elif self.target_version <= "3.2":
-                bv = '9.0'
-            elif self.target_version <= "3.4":
-                bv = '10.0'
-            else:
-                bv = '14.0'
-        else:
-            # for current version - use authoritative check.
-            try:
-                from msvcrt import CRT_ASSEMBLY_VERSION
-            except ImportError:
-                # cross-building, so assume the latest version
-                bv = '14.0'
-            else:
-                # as far as we know, CRT is binary compatible based on
-                # the first field, so assume 'x.0' until proven otherwise
-                major = CRT_ASSEMBLY_VERSION.partition('.')[0]
-                bv = major + '.0'
-
-
-        # wininst-x.y.exe is in the same directory as this file
-        directory = os.path.dirname(__file__)
-        # we must use a wininst-x.y.exe built with the same C compiler
-        # used for python.  XXX What about mingw, borland, and so on?
-
-        # if plat_name starts with "win" but is not "win32"
-        # we want to strip "win" and leave the rest (e.g. -amd64)
-        # for all other cases, we don't want any suffix
-        if self.plat_name != 'win32' and self.plat_name[:3] == 'win':
-            sfix = self.plat_name[3:]
-        else:
-            sfix = ''
-
-        filename = os.path.join(directory, "wininst-%s%s.exe" % (bv, sfix))
-        f = open(filename, "rb")
-        try:
-            return f.read()
-        finally:
-            f.close()
diff --git a/contrib/tools/python3/src/Lib/distutils/command/install.py b/contrib/tools/python3/src/Lib/distutils/command/install.py
index aaa300efa96..01d5331a630 100644
--- a/contrib/tools/python3/src/Lib/distutils/command/install.py
+++ b/contrib/tools/python3/src/Lib/distutils/command/install.py
@@ -3,7 +3,9 @@
 Implements the Distutils 'install' command."""
 
 import sys
+import sysconfig
 import os
+import re
 
 from distutils import log
 from distutils.core import Command
@@ -17,35 +19,55 @@ from distutils.errors import DistutilsOptionError
 
 from site import USER_BASE
 from site import USER_SITE
-HAS_USER_SITE = True
 
-WINDOWS_SCHEME = {
-    'purelib': '$base/Lib/site-packages',
-    'platlib': '$base/Lib/site-packages',
-    'headers': '$base/Include/$dist_name',
-    'scripts': '$base/Scripts',
-    'data'   : '$base',
-}
+HAS_USER_SITE = (USER_SITE is not None)
 
-INSTALL_SCHEMES = {
-    'unix_prefix': {
-        'purelib': '$base/lib/python$py_version_short/site-packages',
-        'platlib': '$platbase/$platlibdir/python$py_version_short/site-packages',
-        'headers': '$base/include/python$py_version_short$abiflags/$dist_name',
-        'scripts': '$base/bin',
-        'data'   : '$base',
-        },
-    'unix_home': {
-        'purelib': '$base/lib/python',
-        'platlib': '$base/$platlibdir/python',
-        'headers': '$base/include/python/$dist_name',
-        'scripts': '$base/bin',
-        'data'   : '$base',
-        },
-    'nt': WINDOWS_SCHEME,
-    }
+# The keys to an installation scheme; if any new types of files are to be
+# installed, be sure to add an entry to every scheme in
+# sysconfig._INSTALL_SCHEMES, and to SCHEME_KEYS here.
+SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data')
+
+# The following code provides backward-compatible INSTALL_SCHEMES
+# while making the sysconfig module the single point of truth.
+# This makes it easier for OS distributions where they need to
+# alter locations for packages installations in a single place.
+# Note that this module is deprecated (PEP 632); all consumers
+# of this information should switch to using sysconfig directly.
+INSTALL_SCHEMES = {"unix_prefix": {}, "unix_home": {}, "nt": {}}
 
-# user site schemes
+# Copy from sysconfig._INSTALL_SCHEMES
+for key in SCHEME_KEYS:
+    for distutils_scheme_name, sys_scheme_name in (
+            ("unix_prefix", "posix_prefix"), ("unix_home", "posix_home"),
+            ("nt", "nt")):
+        sys_key = key
+        sys_scheme = sysconfig._INSTALL_SCHEMES[sys_scheme_name]
+        if key == "headers" and key not in sys_scheme:
+            # On POSIX-y platforms, Python will:
+            # - Build from .h files in 'headers' (only there when
+            #   building CPython)
+            # - Install .h files to 'include'
+            # When 'headers' is missing, fall back to 'include'
+            sys_key = 'include'
+        INSTALL_SCHEMES[distutils_scheme_name][key] = sys_scheme[sys_key]
+
+# Transformation to different template format
+for main_key in INSTALL_SCHEMES:
+    for key, value in INSTALL_SCHEMES[main_key].items():
+        # Change all ocurences of {variable} to $variable
+        value = re.sub(r"\{(.+?)\}", r"$\g<1>", value)
+        value = value.replace("$installed_base", "$base")
+        value = value.replace("$py_version_nodot_plat", "$py_version_nodot")
+        if key == "headers":
+            value += "/$dist_name"
+        if sys.version_info >= (3, 9) and key == "platlib":
+            # platlibdir is available since 3.9: bpo-1294959
+            value = value.replace("/lib/", "/$platlibdir/")
+        INSTALL_SCHEMES[main_key][key] = value
+
+# The following part of INSTALL_SCHEMES has a different definition
+# than the one in sysconfig, but because both depend on the site module,
+# the outcomes should be the same.
 if HAS_USER_SITE:
     INSTALL_SCHEMES['nt_user'] = {
         'purelib': '$usersite',
@@ -64,11 +86,6 @@ if HAS_USER_SITE:
         'data'   : '$userbase',
         }
 
-# The keys to an installation scheme; if any new types of files are to be
-# installed, be sure to add an entry to every installation scheme above,
-# and to SCHEME_KEYS here.
-SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data')
-
 
 class install(Command):
 
@@ -169,8 +186,9 @@ class install(Command):
         self.install_lib = None         # set to either purelib or platlib
         self.install_scripts = None
         self.install_data = None
-        self.install_userbase = USER_BASE
-        self.install_usersite = USER_SITE
+        if HAS_USER_SITE:
+            self.install_userbase = USER_BASE
+            self.install_usersite = USER_SITE
 
         self.compile = None
         self.optimize = None
@@ -305,6 +323,9 @@ class install(Command):
             self.config_vars['userbase'] = self.install_userbase
             self.config_vars['usersite'] = self.install_usersite
 
+        if sysconfig.is_python_build(True):
+            self.config_vars['srcdir'] = sysconfig.get_config_var('srcdir')
+
         self.expand_basedirs()
 
         self.dump_dirs("post-expand_basedirs()")
@@ -343,8 +364,9 @@ class install(Command):
         # Convert directories from Unix /-separated syntax to the local
         # convention.
         self.convert_paths('lib', 'purelib', 'platlib',
-                           'scripts', 'data', 'headers',
-                           'userbase', 'usersite')
+                           'scripts', 'data', 'headers')
+        if HAS_USER_SITE:
+            self.convert_paths('userbase', 'usersite')
 
         # Deprecated
         # Well, we're not actually fully completely finalized yet: we still
diff --git a/contrib/tools/python3/src/Lib/distutils/extension.py b/contrib/tools/python3/src/Lib/distutils/extension.py
index c507da360aa..e85032ece89 100644
--- a/contrib/tools/python3/src/Lib/distutils/extension.py
+++ b/contrib/tools/python3/src/Lib/distutils/extension.py
@@ -4,6 +4,7 @@ Provides the Extension class, used to describe C/C++ extension
 modules in setup scripts."""
 
 import os
+import re
 import warnings
 
 # This class is really only used by the "build_ext" command, so it might
@@ -161,7 +162,7 @@ def read_setup_file(filename):
             line = file.readline()
             if line is None:                # eof
                 break
-            if _variable_rx.match(line):    # VAR=VALUE, handled in first pass
+            if re.match(_variable_rx, line):    # VAR=VALUE, handled in first pass
                 continue
 
             if line[0] == line[-1] == "*":
diff --git a/contrib/tools/python3/src/Lib/distutils/sysconfig.py b/contrib/tools/python3/src/Lib/distutils/sysconfig.py
index 4e5464705b8..3414a761e76 100644
--- a/contrib/tools/python3/src/Lib/distutils/sysconfig.py
+++ b/contrib/tools/python3/src/Lib/distutils/sysconfig.py
@@ -13,298 +13,69 @@ import _imp
 import os
 import re
 import sys
+import warnings
 
-from .errors import DistutilsPlatformError
-
-# These are needed in a couple of spots, so just compute them once.
-PREFIX = os.path.normpath(sys.prefix)
-EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
-BASE_PREFIX = os.path.normpath(sys.base_prefix)
-BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix)
-
-# Path to the base directory of the project. On Windows the binary may
-# live in project/PCbuild/win32 or project/PCbuild/amd64.
-# set for cross builds
-if "_PYTHON_PROJECT_BASE" in os.environ:
-    project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"])
-else:
-    if sys.executable:
-        project_base = os.path.dirname(os.path.abspath(sys.executable))
-    else:
-        # sys.executable can be empty if argv[0] has been changed and Python is
-        # unable to retrieve the real program name
-        project_base = os.getcwd()
-
-
-# python_build: (Boolean) if true, we're either building Python or
-# building an extension with an un-installed Python, so we use
-# different (hard-wired) directories.
-def _is_python_source_dir(d):
-    for fn in ("Setup", "Setup.local"):
-        if os.path.isfile(os.path.join(d, "Modules", fn)):
-            return True
-    return False
-
-_sys_home = getattr(sys, '_home', None)
-
-if os.name == 'nt':
-    def _fix_pcbuild(d):
-        if d and os.path.normcase(d).startswith(
-                os.path.normcase(os.path.join(PREFIX, "PCbuild"))):
-            return PREFIX
-        return d
-    project_base = _fix_pcbuild(project_base)
-    _sys_home = _fix_pcbuild(_sys_home)
-
-def _python_build():
-    if _sys_home:
-        return _is_python_source_dir(_sys_home)
-    return _is_python_source_dir(project_base)
-
-python_build = _python_build()
-
-
-# Calculate the build qualifier flags if they are defined.  Adding the flags
-# to the include and lib directories only makes sense for an installation, not
-# an in-source build.
-build_flags = ''
-try:
-    if not python_build:
-        build_flags = sys.abiflags
-except AttributeError:
-    # It's not a configure-based build, so the sys module doesn't have
-    # this attribute, which is fine.
-    pass
-
-def get_python_version():
-    """Return a string containing the major and minor Python version,
-    leaving off the patchlevel.  Sample return values could be '1.5'
-    or '2.2'.
-    """
-    return '%d.%d' % sys.version_info[:2]
-
-
-def get_python_inc(plat_specific=0, prefix=None):
-    """Return the directory containing installed Python header files.
-
-    If 'plat_specific' is false (the default), this is the path to the
-    non-platform-specific header files, i.e. Python.h and so on;
-    otherwise, this is the path to platform-specific header files
-    (namely pyconfig.h).
-
-    If 'prefix' is supplied, use it instead of sys.base_prefix or
-    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
-    """
-    if prefix is None:
-        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
-    if os.name == "posix":
-        if python_build:
-            # Assume the executable is in the build directory.  The
-            # pyconfig.h file should be in the same directory.  Since
-            # the build directory may not be the source directory, we
-            # must use "srcdir" from the makefile to find the "Include"
-            # directory.
-            if plat_specific:
-                return _sys_home or project_base
-            else:
-                incdir = os.path.join(get_config_var('srcdir'), 'Include')
-                return os.path.normpath(incdir)
-        python_dir = 'python' + get_python_version() + build_flags
-        return os.path.join(prefix, "include", python_dir)
-    elif os.name == "nt":
-        if python_build:
-            # Include both the include and PC dir to ensure we can find
-            # pyconfig.h
-            return (os.path.join(prefix, "include") + os.path.pathsep +
-                    os.path.join(prefix, "PC"))
-        return os.path.join(prefix, "include")
-    else:
-        raise DistutilsPlatformError(
-            "I don't know where Python installs its C header files "
-            "on platform '%s'" % os.name)
-
-
-def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
-    """Return the directory containing the Python library (standard or
-    site additions).
-
-    If 'plat_specific' is true, return the directory containing
-    platform-specific modules, i.e. any module from a non-pure-Python
-    module distribution; otherwise, return the platform-shared library
-    directory.  If 'standard_lib' is true, return the directory
-    containing standard Python library modules; otherwise, return the
-    directory for site-specific modules.
-
-    If 'prefix' is supplied, use it instead of sys.base_prefix or
-    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
-    """
-    if prefix is None:
-        if standard_lib:
-            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
-        else:
-            prefix = plat_specific and EXEC_PREFIX or PREFIX
-
-    if os.name == "posix":
-        if plat_specific or standard_lib:
-            # Platform-specific modules (any module from a non-pure-Python
-            # module distribution) or standard Python library modules.
-            libdir = sys.platlibdir
-        else:
-            # Pure Python
-            libdir = "lib"
-        libpython = os.path.join(prefix, libdir,
-                                 "python" + get_python_version())
-        if standard_lib:
-            return libpython
-        else:
-            return os.path.join(libpython, "site-packages")
-    elif os.name == "nt":
-        if standard_lib:
-            return os.path.join(prefix, "Lib")
-        else:
-            return os.path.join(prefix, "Lib", "site-packages")
-    else:
-        raise DistutilsPlatformError(
-            "I don't know where Python installs its library "
-            "on platform '%s'" % os.name)
+from functools import partial
 
+from .errors import DistutilsPlatformError
 
+from sysconfig import (
+    _PREFIX as PREFIX,
+    _BASE_PREFIX as BASE_PREFIX,
+    _EXEC_PREFIX as EXEC_PREFIX,
+    _BASE_EXEC_PREFIX as BASE_EXEC_PREFIX,
+    _PROJECT_BASE as project_base,
+    _PYTHON_BUILD as python_build,
+    _init_posix as sysconfig_init_posix,
+    parse_config_h as sysconfig_parse_config_h,
 
-def customize_compiler(compiler):
-    """Do any platform-specific customization of a CCompiler instance.
+    _init_non_posix,
+    _is_python_source_dir,
+    _sys_home,
 
-    Mainly needed on Unix, so we can plug in the information that
-    varies across Unices and is stored in Python's Makefile.
-    """
-    if compiler.compiler_type == "unix":
-        if sys.platform == "darwin":
-            # Perform first-time customization of compiler-related
-            # config vars on OS X now that we know we need a compiler.
-            # This is primarily to support Pythons from binary
-            # installers.  The kind and paths to build tools on
-            # the user system may vary significantly from the system
-            # that Python itself was built on.  Also the user OS
-            # version and build tools may not support the same set
-            # of CPU architectures for universal builds.
-            global _config_vars
-            # Use get_config_var() to ensure _config_vars is initialized.
-            if not get_config_var('CUSTOMIZED_OSX_COMPILER'):
-                import _osx_support
-                _osx_support.customize_compiler(_config_vars)
-                _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True'
+    _variable_rx,
+    _findvar1_rx,
+    _findvar2_rx,
 
-        (cc, cxx, cflags, ccshared, ldshared, shlib_suffix, ar, ar_flags) = \
-            get_config_vars('CC', 'CXX', 'CFLAGS',
-                            'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
+    expand_makefile_vars,
+    is_python_build,
+    get_config_h_filename,
+    get_config_var,
+    get_config_vars,
+    get_makefile_filename,
+    get_python_version,
+)
 
-        if 'CC' in os.environ:
-            newcc = os.environ['CC']
-            if (sys.platform == 'darwin'
-                    and 'LDSHARED' not in os.environ
-                    and ldshared.startswith(cc)):
-                # On OS X, if CC is overridden, use that as the default
-                #       command for LDSHARED as well
-                ldshared = newcc + ldshared[len(cc):]
-            cc = newcc
-        if 'CXX' in os.environ:
-            cxx = os.environ['CXX']
-        if 'LDSHARED' in os.environ:
-            ldshared = os.environ['LDSHARED']
-        if 'CPP' in os.environ:
-            cpp = os.environ['CPP']
-        else:
-            cpp = cc + " -E"           # not always
-        if 'LDFLAGS' in os.environ:
-            ldshared = ldshared + ' ' + os.environ['LDFLAGS']
-        if 'CFLAGS' in os.environ:
-            cflags = cflags + ' ' + os.environ['CFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CFLAGS']
-        if 'CPPFLAGS' in os.environ:
-            cpp = cpp + ' ' + os.environ['CPPFLAGS']
-            cflags = cflags + ' ' + os.environ['CPPFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
-        if 'AR' in os.environ:
-            ar = os.environ['AR']
-        if 'ARFLAGS' in os.environ:
-            archiver = ar + ' ' + os.environ['ARFLAGS']
-        else:
-            archiver = ar + ' ' + ar_flags
-
-        cc_cmd = cc + ' ' + cflags
-        compiler.set_executables(
-            preprocessor=cpp,
-            compiler=cc_cmd,
-            compiler_so=cc_cmd + ' ' + ccshared,
-            compiler_cxx=cxx,
-            linker_so=ldshared,
-            linker_exe=cc,
-            archiver=archiver)
-
-        compiler.shared_lib_extension = shlib_suffix
+# This is better than
+# from sysconfig import _CONFIG_VARS as _config_vars
+# because it makes sure that the global dictionary is initialized
+# which might not be true in the time of import.
+_config_vars = get_config_vars()
 
+if os.name == "nt":
+    from sysconfig import _fix_pcbuild
 
-def get_config_h_filename():
-    """Return full pathname of installed pyconfig.h file."""
-    if python_build:
-        if os.name == "nt":
-            inc_dir = os.path.join(_sys_home or project_base, "PC")
-        else:
-            inc_dir = _sys_home or project_base
-    else:
-        inc_dir = get_python_inc(plat_specific=1)
-
-    return os.path.join(inc_dir, 'pyconfig.h')
-
-
-def get_makefile_filename():
-    """Return full pathname of installed Makefile from the Python build."""
-    if python_build:
-        return os.path.join(_sys_home or project_base, "Makefile")
-    lib_dir = get_python_lib(plat_specific=0, standard_lib=1)
-    config_file = 'config-{}{}'.format(get_python_version(), build_flags)
-    if hasattr(sys.implementation, '_multiarch'):
-        config_file += '-%s' % sys.implementation._multiarch
-    return os.path.join(lib_dir, config_file, 'Makefile')
+warnings.warn(
+    'The distutils.sysconfig module is deprecated, use sysconfig instead',
+    DeprecationWarning,
+    stacklevel=2
+)
 
 
+# Following functions are the same as in sysconfig but with different API
 def parse_config_h(fp, g=None):
-    """Parse a config.h-style file.
+    return sysconfig_parse_config_h(fp, vars=g)
 
-    A dictionary containing name/value pairs is returned.  If an
-    optional dictionary is passed in as the second argument, it is
-    used instead of a new dictionary.
-    """
-    if g is None:
-        g = {}
-    define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n")
-    undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n")
-    #
-    while True:
-        line = fp.readline()
-        if not line:
-            break
-        m = define_rx.match(line)
-        if m:
-            n, v = m.group(1, 2)
-            try: v = int(v)
-            except ValueError: pass
-            g[n] = v
-        else:
-            m = undef_rx.match(line)
-            if m:
-                g[m.group(1)] = 0
-    return g
 
+_python_build = partial(is_python_build, check_home=True)
+_init_posix = partial(sysconfig_init_posix, _config_vars)
+_init_nt = partial(_init_non_posix, _config_vars)
 
-# Regexes needed for parsing Makefile (and similar syntaxes,
-# like old-style Setup files).
-_variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
-_findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
-_findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
 
+# Similar function is also implemented in sysconfig as _parse_makefile
+# but without the parsing capabilities of distutils.text_file.TextFile.
 def parse_makefile(fn, g=None):
     """Parse a Makefile-style file.
-
     A dictionary containing name/value pairs is returned.  If an
     optional dictionary is passed in as the second argument, it is
     used instead of a new dictionary.
@@ -321,7 +92,7 @@ def parse_makefile(fn, g=None):
         line = fp.readline()
         if line is None: # eof
             break
-        m = _variable_rx.match(line)
+        m = re.match(_variable_rx, line)
         if m:
             n, v = m.group(1, 2)
             v = v.strip()
@@ -349,7 +120,7 @@ def parse_makefile(fn, g=None):
     while notdone:
         for name in list(notdone):
             value = notdone[name]
-            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
+            m = re.search(_findvar1_rx, value) or re.search(_findvar2_rx, value)
             if m:
                 n = m.group(1)
                 found = True
@@ -408,148 +179,173 @@ def parse_makefile(fn, g=None):
     return g
 
 
-def expand_makefile_vars(s, vars):
-    """Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in
-    'string' according to 'vars' (a dictionary mapping variable names to
-    values).  Variables not present in 'vars' are silently expanded to the
-    empty string.  The variable values in 'vars' should not contain further
-    variable expansions; if 'vars' is the output of 'parse_makefile()',
-    you're fine.  Returns a variable-expanded version of 's'.
-    """
-
-    # This algorithm does multiple expansion, so if vars['foo'] contains
-    # "${bar}", it will expand ${foo} to ${bar}, and then expand
-    # ${bar}... and so forth.  This is fine as long as 'vars' comes from
-    # 'parse_makefile()', which takes care of such expansions eagerly,
-    # according to make's variable expansion semantics.
+# Following functions are deprecated together with this module and they
+# have no direct replacement
 
-    while True:
-        m = _findvar1_rx.search(s) or _findvar2_rx.search(s)
-        if m:
-            (beg, end) = m.span()
-            s = s[0:beg] + vars.get(m.group(1)) + s[end:]
-        else:
-            break
-    return s
+# Calculate the build qualifier flags if they are defined.  Adding the flags
+# to the include and lib directories only makes sense for an installation, not
+# an in-source build.
+build_flags = ''
+try:
+    if not python_build:
+        build_flags = sys.abiflags
+except AttributeError:
+    # It's not a configure-based build, so the sys module doesn't have
+    # this attribute, which is fine.
+    pass
 
 
-_config_vars = None
+def customize_compiler(compiler):
+    """Do any platform-specific customization of a CCompiler instance.
 
-def _init_posix():
-    """Initialize the module as appropriate for POSIX systems."""
-    # _sysconfigdata is generated at build time, see the sysconfig module
-    #name = os.environ.get('_PYTHON_SYSCONFIGDATA_NAME',
-    #    '_sysconfigdata_{abi}_{platform}_{multiarch}'.format(
-    #    abi=sys.abiflags,
-    #    platform=sys.platform,
-    #    multiarch=getattr(sys.implementation, '_multiarch', ''),
-    #))
-    #_temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
-    #build_time_vars = _temp.build_time_vars
-    global _config_vars
-    _config_vars = {'SO': '.so'}
-    #_config_vars.update(build_time_vars)
+    Mainly needed on Unix, so we can plug in the information that
+    varies across Unices and is stored in Python's Makefile.
+    """
+    if compiler.compiler_type == "unix":
+        if sys.platform == "darwin":
+            # Perform first-time customization of compiler-related
+            # config vars on OS X now that we know we need a compiler.
+            # This is primarily to support Pythons from binary
+            # installers.  The kind and paths to build tools on
+            # the user system may vary significantly from the system
+            # that Python itself was built on.  Also the user OS
+            # version and build tools may not support the same set
+            # of CPU architectures for universal builds.
+            if not _config_vars.get('CUSTOMIZED_OSX_COMPILER'):
+                import _osx_support
+                _osx_support.customize_compiler(_config_vars)
+                _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True'
 
+        (cc, cxx, cflags, ccshared, ldshared, shlib_suffix, ar, ar_flags) = \
+            get_config_vars('CC', 'CXX', 'CFLAGS',
+                            'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
 
-def _init_nt():
-    """Initialize the module as appropriate for NT"""
-    g = {}
-    # set basic install directories
-    g['LIBDEST'] = get_python_lib(plat_specific=0, standard_lib=1)
-    g['BINLIBDEST'] = get_python_lib(plat_specific=1, standard_lib=1)
+        if 'CC' in os.environ:
+            newcc = os.environ['CC']
+            if (sys.platform == 'darwin'
+                    and 'LDSHARED' not in os.environ
+                    and ldshared.startswith(cc)):
+                # On OS X, if CC is overridden, use that as the default
+                #       command for LDSHARED as well
+                ldshared = newcc + ldshared[len(cc):]
+            cc = newcc
+        if 'CXX' in os.environ:
+            cxx = os.environ['CXX']
+        if 'LDSHARED' in os.environ:
+            ldshared = os.environ['LDSHARED']
+        if 'CPP' in os.environ:
+            cpp = os.environ['CPP']
+        else:
+            cpp = cc + " -E"           # not always
+        if 'LDFLAGS' in os.environ:
+            ldshared = ldshared + ' ' + os.environ['LDFLAGS']
+        if 'CFLAGS' in os.environ:
+            cflags = cflags + ' ' + os.environ['CFLAGS']
+            ldshared = ldshared + ' ' + os.environ['CFLAGS']
+        if 'CPPFLAGS' in os.environ:
+            cpp = cpp + ' ' + os.environ['CPPFLAGS']
+            cflags = cflags + ' ' + os.environ['CPPFLAGS']
+            ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
+        if 'AR' in os.environ:
+            ar = os.environ['AR']
+        if 'ARFLAGS' in os.environ:
+            archiver = ar + ' ' + os.environ['ARFLAGS']
+        else:
+            archiver = ar + ' ' + ar_flags
 
-    # XXX hmmm.. a normal install puts include files here
-    g['INCLUDEPY'] = get_python_inc(plat_specific=0)
+        cc_cmd = cc + ' ' + cflags
+        compiler.set_executables(
+            preprocessor=cpp,
+            compiler=cc_cmd,
+            compiler_so=cc_cmd + ' ' + ccshared,
+            compiler_cxx=cxx,
+            linker_so=ldshared,
+            linker_exe=cc,
+            archiver=archiver)
 
-    g['EXT_SUFFIX'] = _imp.extension_suffixes()[0]
-    g['EXE'] = ".exe"
-    g['VERSION'] = get_python_version().replace(".", "")
-    g['BINDIR'] = os.path.dirname(os.path.abspath(sys.executable))
+        compiler.shared_lib_extension = shlib_suffix
 
-    global _config_vars
-    _config_vars = g
 
+def get_python_inc(plat_specific=0, prefix=None):
+    """Return the directory containing installed Python header files.
 
-def get_config_vars(*args):
-    """With no arguments, return a dictionary of all configuration
-    variables relevant for the current platform.  Generally this includes
-    everything needed to build extensions and install both pure modules and
-    extensions.  On Unix, this means every variable defined in Python's
-    installed Makefile; on Windows it's a much smaller set.
+    If 'plat_specific' is false (the default), this is the path to the
+    non-platform-specific header files, i.e. Python.h and so on;
+    otherwise, this is the path to platform-specific header files
+    (namely pyconfig.h).
 
-    With arguments, return a list of values that result from looking up
-    each argument in the configuration variable dictionary.
+    If 'prefix' is supplied, use it instead of sys.base_prefix or
+    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
     """
-    global _config_vars
-    if _config_vars is None:
-        func = globals().get("_init_" + os.name)
-        if func:
-            func()
-        else:
-            _config_vars = {}
-
-        # Normalized versions of prefix and exec_prefix are handy to have;
-        # in fact, these are the standard versions used most places in the
-        # Distutils.
-        _config_vars['prefix'] = PREFIX
-        _config_vars['exec_prefix'] = EXEC_PREFIX
-
-        # For backward compatibility, see issue19555
-        SO = _config_vars.get('EXT_SUFFIX')
-        if SO is not None:
-            _config_vars['SO'] = SO
-
-        # Always convert srcdir to an absolute path
-        srcdir = _config_vars.get('srcdir', project_base)
-        if os.name == 'posix':
-            if python_build:
-                # If srcdir is a relative path (typically '.' or '..')
-                # then it should be interpreted relative to the directory
-                # containing Makefile.
-                base = os.path.dirname(get_makefile_filename())
-                srcdir = os.path.join(base, srcdir)
+    if prefix is None:
+        prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
+    if os.name == "posix":
+        if python_build:
+            # Assume the executable is in the build directory.  The
+            # pyconfig.h file should be in the same directory.  Since
+            # the build directory may not be the source directory, we
+            # must use "srcdir" from the makefile to find the "Include"
+            # directory.
+            if plat_specific:
+                return _sys_home or project_base
             else:
-                # srcdir is not meaningful since the installation is
-                # spread about the filesystem.  We choose the
-                # directory containing the Makefile since we know it
-                # exists.
-                srcdir = os.path.dirname(get_makefile_filename())
-        _config_vars['srcdir'] = os.path.abspath(os.path.normpath(srcdir))
+                incdir = os.path.join(get_config_var('srcdir'), 'Include')
+                return os.path.normpath(incdir)
+        python_dir = 'python' + get_python_version() + build_flags
+        return os.path.join(prefix, "include", python_dir)
+    elif os.name == "nt":
+        if python_build:
+            # Include both the include and PC dir to ensure we can find
+            # pyconfig.h
+            return (os.path.join(prefix, "include") + os.path.pathsep +
+                    os.path.join(prefix, "PC"))
+        return os.path.join(prefix, "include")
+    else:
+        raise DistutilsPlatformError(
+            "I don't know where Python installs its C header files "
+            "on platform '%s'" % os.name)
 
-        # Convert srcdir into an absolute path if it appears necessary.
-        # Normally it is relative to the build directory.  However, during
-        # testing, for example, we might be running a non-installed python
-        # from a different directory.
-        if python_build and os.name == "posix":
-            base = project_base
-            if (not os.path.isabs(_config_vars['srcdir']) and
-                base != os.getcwd()):
-                # srcdir is relative and we are not in the same directory
-                # as the executable. Assume executable is in the build
-                # directory and make srcdir absolute.
-                srcdir = os.path.join(base, _config_vars['srcdir'])
-                _config_vars['srcdir'] = os.path.normpath(srcdir)
 
-        # OS X platforms require special customization to handle
-        # multi-architecture, multi-os-version installers
-        if sys.platform == 'darwin':
-            import _osx_support
-            _osx_support.customize_config_vars(_config_vars)
+def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
+    """Return the directory containing the Python library (standard or
+    site additions).
 
-    if args:
-        vals = []
-        for name in args:
-            vals.append(_config_vars.get(name))
-        return vals
-    else:
-        return _config_vars
+    If 'plat_specific' is true, return the directory containing
+    platform-specific modules, i.e. any module from a non-pure-Python
+    module distribution; otherwise, return the platform-shared library
+    directory.  If 'standard_lib' is true, return the directory
+    containing standard Python library modules; otherwise, return the
+    directory for site-specific modules.
 
-def get_config_var(name):
-    """Return the value of a single variable using the dictionary
-    returned by 'get_config_vars()'.  Equivalent to
-    get_config_vars().get(name)
+    If 'prefix' is supplied, use it instead of sys.base_prefix or
+    sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
     """
-    if name == 'SO':
-        import warnings
-        warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2)
-    return get_config_vars().get(name)
+    if prefix is None:
+        if standard_lib:
+            prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
+        else:
+            prefix = plat_specific and EXEC_PREFIX or PREFIX
+
+    if os.name == "posix":
+        if plat_specific or standard_lib:
+            # Platform-specific modules (any module from a non-pure-Python
+            # module distribution) or standard Python library modules.
+            libdir = sys.platlibdir
+        else:
+            # Pure Python
+            libdir = "lib"
+        libpython = os.path.join(prefix, libdir,
+                                 "python" + get_python_version())
+        if standard_lib:
+            return libpython
+        else:
+            return os.path.join(libpython, "site-packages")
+    elif os.name == "nt":
+        if standard_lib:
+            return os.path.join(prefix, "Lib")
+        else:
+            return os.path.join(prefix, "Lib", "site-packages")
+    else:
+        raise DistutilsPlatformError(
+            "I don't know where Python installs its library "
+            "on platform '%s'" % os.name)
diff --git a/contrib/tools/python3/src/Lib/distutils/util.py b/contrib/tools/python3/src/Lib/distutils/util.py
index 4b002ecef1d..2ce5c5b64d6 100644
--- a/contrib/tools/python3/src/Lib/distutils/util.py
+++ b/contrib/tools/python3/src/Lib/distutils/util.py
@@ -9,6 +9,7 @@ import re
 import importlib.util
 import string
 import sys
+import distutils
 from distutils.errors import DistutilsPlatformError
 from distutils.dep_util import newer
 from distutils.spawn import spawn
@@ -419,8 +420,10 @@ byte_compile(files, optimize=%r, force=%r,
              direct=1)
 """ % (optimize, force, prefix, base_dir, verbose))
 
+        msg = distutils._DEPRECATION_MESSAGE
         cmd = [sys.executable]
         cmd.extend(subprocess._optim_args_from_interpreter_flags())
+        cmd.append(f'-Wignore:{msg}:DeprecationWarning')
         cmd.append(script_name)
         spawn(cmd, dry_run=dry_run)
         execute(os.remove, (script_name,), "removing %s" % script_name,