Restoring authorship annotation for <[email protected]>. Commit 1 of 2.

1 files changed, 1058 insertions, 1058 deletions

diff --git a/contrib/tools/python3/src/Lib/platform.py b/contrib/tools/python3/src/Lib/platform.py
index d6412e169b4..1bb3de85165 100644
--- a/contrib/tools/python3/src/Lib/platform.py
+++ b/contrib/tools/python3/src/Lib/platform.py
@@ -1,179 +1,179 @@
-#!/usr/bin/env python3
-
-""" This module tries to retrieve as much platform-identifying data as
-    possible. It makes this information available via function APIs.
-
-    If called from the command line, it prints the platform
-    information concatenated as single string to stdout. The output
-    format is useable as part of a filename.
-
-"""
-#    This module is maintained by Marc-Andre Lemburg <[email protected]>.
-#    If you find problems, please submit bug reports/patches via the
-#    Python bug tracker (http://bugs.python.org) and assign them to "lemburg".
-#
-#    Still needed:
-#    * support for MS-DOS (PythonDX ?)
-#    * support for Amiga and other still unsupported platforms running Python
-#    * support for additional Linux distributions
-#
-#    Many thanks to all those who helped adding platform-specific
-#    checks (in no particular order):
-#
-#      Charles G Waldman, David Arnold, Gordon McMillan, Ben Darnell,
-#      Jeff Bauer, Cliff Crawford, Ivan Van Laningham, Josef
-#      Betancourt, Randall Hopper, Karl Putland, John Farrell, Greg
-#      Andruk, Just van Rossum, Thomas Heller, Mark R. Levinson, Mark
-#      Hammond, Bill Tutt, Hans Nowak, Uwe Zessin (OpenVMS support),
-#      Colin Kong, Trent Mick, Guido van Rossum, Anthony Baxter, Steve
-#      Dower
-#
-#    History:
-#
-#    <see CVS and SVN checkin messages for history>
-#
-#    1.0.8 - changed Windows support to read version from kernel32.dll
-#    1.0.7 - added DEV_NULL
-#    1.0.6 - added linux_distribution()
-#    1.0.5 - fixed Java support to allow running the module on Jython
-#    1.0.4 - added IronPython support
-#    1.0.3 - added normalization of Windows system name
-#    1.0.2 - added more Windows support
-#    1.0.1 - reformatted to make doc.py happy
-#    1.0.0 - reformatted a bit and checked into Python CVS
-#    0.8.0 - added sys.version parser and various new access
-#            APIs (python_version(), python_compiler(), etc.)
-#    0.7.2 - fixed architecture() to use sizeof(pointer) where available
-#    0.7.1 - added support for Caldera OpenLinux
-#    0.7.0 - some fixes for WinCE; untabified the source file
-#    0.6.2 - support for OpenVMS - requires version 1.5.2-V006 or higher and
-#            vms_lib.getsyi() configured
-#    0.6.1 - added code to prevent 'uname -p' on platforms which are
-#            known not to support it
-#    0.6.0 - fixed win32_ver() to hopefully work on Win95,98,NT and Win2k;
-#            did some cleanup of the interfaces - some APIs have changed
-#    0.5.5 - fixed another type in the MacOS code... should have
-#            used more coffee today ;-)
-#    0.5.4 - fixed a few typos in the MacOS code
-#    0.5.3 - added experimental MacOS support; added better popen()
-#            workarounds in _syscmd_ver() -- still not 100% elegant
-#            though
-#    0.5.2 - fixed uname() to return '' instead of 'unknown' in all
-#            return values (the system uname command tends to return
-#            'unknown' instead of just leaving the field empty)
-#    0.5.1 - included code for slackware dist; added exception handlers
-#            to cover up situations where platforms don't have os.popen
-#            (e.g. Mac) or fail on socket.gethostname(); fixed libc
-#            detection RE
-#    0.5.0 - changed the API names referring to system commands to *syscmd*;
-#            added java_ver(); made syscmd_ver() a private
-#            API (was system_ver() in previous versions) -- use uname()
-#            instead; extended the win32_ver() to also return processor
-#            type information
-#    0.4.0 - added win32_ver() and modified the platform() output for WinXX
-#    0.3.4 - fixed a bug in _follow_symlinks()
+#!/usr/bin/env python3 
+ 
+""" This module tries to retrieve as much platform-identifying data as 
+    possible. It makes this information available via function APIs. 
+ 
+    If called from the command line, it prints the platform 
+    information concatenated as single string to stdout. The output 
+    format is useable as part of a filename. 
+ 
+""" 
+#    This module is maintained by Marc-Andre Lemburg <[email protected]>. 
+#    If you find problems, please submit bug reports/patches via the 
+#    Python bug tracker (http://bugs.python.org) and assign them to "lemburg". 
+# 
+#    Still needed: 
+#    * support for MS-DOS (PythonDX ?) 
+#    * support for Amiga and other still unsupported platforms running Python 
+#    * support for additional Linux distributions 
+# 
+#    Many thanks to all those who helped adding platform-specific 
+#    checks (in no particular order): 
+# 
+#      Charles G Waldman, David Arnold, Gordon McMillan, Ben Darnell, 
+#      Jeff Bauer, Cliff Crawford, Ivan Van Laningham, Josef 
+#      Betancourt, Randall Hopper, Karl Putland, John Farrell, Greg 
+#      Andruk, Just van Rossum, Thomas Heller, Mark R. Levinson, Mark 
+#      Hammond, Bill Tutt, Hans Nowak, Uwe Zessin (OpenVMS support), 
+#      Colin Kong, Trent Mick, Guido van Rossum, Anthony Baxter, Steve 
+#      Dower 
+# 
+#    History: 
+# 
+#    <see CVS and SVN checkin messages for history> 
+# 
+#    1.0.8 - changed Windows support to read version from kernel32.dll 
+#    1.0.7 - added DEV_NULL 
+#    1.0.6 - added linux_distribution() 
+#    1.0.5 - fixed Java support to allow running the module on Jython 
+#    1.0.4 - added IronPython support 
+#    1.0.3 - added normalization of Windows system name 
+#    1.0.2 - added more Windows support 
+#    1.0.1 - reformatted to make doc.py happy 
+#    1.0.0 - reformatted a bit and checked into Python CVS 
+#    0.8.0 - added sys.version parser and various new access 
+#            APIs (python_version(), python_compiler(), etc.) 
+#    0.7.2 - fixed architecture() to use sizeof(pointer) where available 
+#    0.7.1 - added support for Caldera OpenLinux 
+#    0.7.0 - some fixes for WinCE; untabified the source file 
+#    0.6.2 - support for OpenVMS - requires version 1.5.2-V006 or higher and 
+#            vms_lib.getsyi() configured 
+#    0.6.1 - added code to prevent 'uname -p' on platforms which are 
+#            known not to support it 
+#    0.6.0 - fixed win32_ver() to hopefully work on Win95,98,NT and Win2k; 
+#            did some cleanup of the interfaces - some APIs have changed 
+#    0.5.5 - fixed another type in the MacOS code... should have 
+#            used more coffee today ;-) 
+#    0.5.4 - fixed a few typos in the MacOS code 
+#    0.5.3 - added experimental MacOS support; added better popen() 
+#            workarounds in _syscmd_ver() -- still not 100% elegant 
+#            though 
+#    0.5.2 - fixed uname() to return '' instead of 'unknown' in all 
+#            return values (the system uname command tends to return 
+#            'unknown' instead of just leaving the field empty) 
+#    0.5.1 - included code for slackware dist; added exception handlers 
+#            to cover up situations where platforms don't have os.popen 
+#            (e.g. Mac) or fail on socket.gethostname(); fixed libc 
+#            detection RE 
+#    0.5.0 - changed the API names referring to system commands to *syscmd*; 
+#            added java_ver(); made syscmd_ver() a private 
+#            API (was system_ver() in previous versions) -- use uname() 
+#            instead; extended the win32_ver() to also return processor 
+#            type information 
+#    0.4.0 - added win32_ver() and modified the platform() output for WinXX 
+#    0.3.4 - fixed a bug in _follow_symlinks() 
 #    0.3.3 - fixed popen() and "file" command invocation bugs
-#    0.3.2 - added architecture() API and support for it in platform()
-#    0.3.1 - fixed syscmd_ver() RE to support Windows NT
-#    0.3.0 - added system alias support
-#    0.2.3 - removed 'wince' again... oh well.
-#    0.2.2 - added 'wince' to syscmd_ver() supported platforms
-#    0.2.1 - added cache logic and changed the platform string format
-#    0.2.0 - changed the API to use functions instead of module globals
-#            since some action take too long to be run on module import
-#    0.1.0 - first release
-#
-#    You can always get the latest version of this module at:
-#
-#             http://www.egenix.com/files/python/platform.py
-#
-#    If that URL should fail, try contacting the author.
-
-__copyright__ = """
-    Copyright (c) 1999-2000, Marc-Andre Lemburg; mailto:[email protected]
-    Copyright (c) 2000-2010, eGenix.com Software GmbH; mailto:[email protected]
-
-    Permission to use, copy, modify, and distribute this software and its
-    documentation for any purpose and without fee or royalty is hereby granted,
-    provided that the above copyright notice appear in all copies and that
-    both that copyright notice and this permission notice appear in
-    supporting documentation or portions thereof, including modifications,
-    that you make.
-
-    EGENIX.COM SOFTWARE GMBH DISCLAIMS ALL WARRANTIES WITH REGARD TO
-    THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-    FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
-    INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
-    FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-    NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-    WITH THE USE OR PERFORMANCE OF THIS SOFTWARE !
-
-"""
-
-__version__ = '1.0.8'
-
-import collections
+#    0.3.2 - added architecture() API and support for it in platform() 
+#    0.3.1 - fixed syscmd_ver() RE to support Windows NT 
+#    0.3.0 - added system alias support 
+#    0.2.3 - removed 'wince' again... oh well. 
+#    0.2.2 - added 'wince' to syscmd_ver() supported platforms 
+#    0.2.1 - added cache logic and changed the platform string format 
+#    0.2.0 - changed the API to use functions instead of module globals 
+#            since some action take too long to be run on module import 
+#    0.1.0 - first release 
+# 
+#    You can always get the latest version of this module at: 
+# 
+#             http://www.egenix.com/files/python/platform.py 
+# 
+#    If that URL should fail, try contacting the author. 
+ 
+__copyright__ = """ 
+    Copyright (c) 1999-2000, Marc-Andre Lemburg; mailto:[email protected] 
+    Copyright (c) 2000-2010, eGenix.com Software GmbH; mailto:[email protected] 
+ 
+    Permission to use, copy, modify, and distribute this software and its 
+    documentation for any purpose and without fee or royalty is hereby granted, 
+    provided that the above copyright notice appear in all copies and that 
+    both that copyright notice and this permission notice appear in 
+    supporting documentation or portions thereof, including modifications, 
+    that you make. 
+ 
+    EGENIX.COM SOFTWARE GMBH DISCLAIMS ALL WARRANTIES WITH REGARD TO 
+    THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+    FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, 
+    INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING 
+    FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 
+    NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
+    WITH THE USE OR PERFORMANCE OF THIS SOFTWARE ! 
+ 
+""" 
+ 
+__version__ = '1.0.8' 
+ 
+import collections 
 import os
 import re
 import sys
 import subprocess
 import functools
 import itertools
-
-### Globals & Constants
-
-# Helper for comparing two version number strings.
-# Based on the description of the PHP's version_compare():
-# http://php.net/manual/en/function.version-compare.php
-
-_ver_stages = {
-    # any string not found in this dict, will get 0 assigned
-    'dev': 10,
-    'alpha': 20, 'a': 20,
-    'beta': 30, 'b': 30,
-    'c': 40,
-    'RC': 50, 'rc': 50,
-    # number, will get 100 assigned
-    'pl': 200, 'p': 200,
-}
-
-_component_re = re.compile(r'([0-9]+|[._+-])')
-
-def _comparable_version(version):
-    result = []
-    for v in _component_re.split(version):
-        if v not in '._+-':
-            try:
-                v = int(v, 10)
-                t = 100
-            except ValueError:
-                t = _ver_stages.get(v, 0)
-            result.extend((t, v))
-    return result
-
-### Platform specific APIs
-
-_libc_search = re.compile(b'(__libc_init)'
-                          b'|'
-                          b'(GLIBC_([0-9.]+))'
-                          b'|'
-                          br'(libc(_\w+)?\.so(?:\.(\d[0-9.]*))?)', re.ASCII)
-
+ 
+### Globals & Constants 
+ 
+# Helper for comparing two version number strings. 
+# Based on the description of the PHP's version_compare(): 
+# http://php.net/manual/en/function.version-compare.php 
+ 
+_ver_stages = { 
+    # any string not found in this dict, will get 0 assigned 
+    'dev': 10, 
+    'alpha': 20, 'a': 20, 
+    'beta': 30, 'b': 30, 
+    'c': 40, 
+    'RC': 50, 'rc': 50, 
+    # number, will get 100 assigned 
+    'pl': 200, 'p': 200, 
+} 
+ 
+_component_re = re.compile(r'([0-9]+|[._+-])') 
+ 
+def _comparable_version(version): 
+    result = [] 
+    for v in _component_re.split(version): 
+        if v not in '._+-': 
+            try: 
+                v = int(v, 10) 
+                t = 100 
+            except ValueError: 
+                t = _ver_stages.get(v, 0) 
+            result.extend((t, v)) 
+    return result 
+ 
+### Platform specific APIs 
+ 
+_libc_search = re.compile(b'(__libc_init)' 
+                          b'|' 
+                          b'(GLIBC_([0-9.]+))' 
+                          b'|' 
+                          br'(libc(_\w+)?\.so(?:\.(\d[0-9.]*))?)', re.ASCII) 
+ 
 def libc_ver(executable=None, lib='', version='', chunksize=16384):
-
-    """ Tries to determine the libc version that the file executable
-        (which defaults to the Python interpreter) is linked against.
-
-        Returns a tuple of strings (lib,version) which default to the
-        given parameters in case the lookup fails.
-
-        Note that the function has intimate knowledge of how different
-        libc versions add symbols to the executable and thus is probably
-        only useable for executables compiled using gcc.
-
-        The file is read and scanned in chunks of chunksize bytes.
-
-    """
+ 
+    """ Tries to determine the libc version that the file executable 
+        (which defaults to the Python interpreter) is linked against. 
+ 
+        Returns a tuple of strings (lib,version) which default to the 
+        given parameters in case the lookup fails. 
+ 
+        Note that the function has intimate knowledge of how different 
+        libc versions add symbols to the executable and thus is probably 
+        only useable for executables compiled using gcc. 
+ 
+        The file is read and scanned in chunks of chunksize bytes. 
+ 
+    """ 
     if executable is None:
         try:
             ver = os.confstr('CS_GNU_LIBC_VERSION')
@@ -187,98 +187,98 @@ def libc_ver(executable=None, lib='', version='', chunksize=16384):
 
         executable = sys.executable
 
-    V = _comparable_version
-    if hasattr(os.path, 'realpath'):
-        # Python 2.2 introduced os.path.realpath(); it is used
-        # here to work around problems with Cygwin not being
-        # able to open symlinks for reading
-        executable = os.path.realpath(executable)
-    with open(executable, 'rb') as f:
-        binary = f.read(chunksize)
-        pos = 0
-        while pos < len(binary):
-            if b'libc' in binary or b'GLIBC' in binary:
-                m = _libc_search.search(binary, pos)
-            else:
-                m = None
-            if not m or m.end() == len(binary):
-                chunk = f.read(chunksize)
-                if chunk:
-                    binary = binary[max(pos, len(binary) - 1000):] + chunk
-                    pos = 0
-                    continue
-                if not m:
-                    break
-            libcinit, glibc, glibcversion, so, threads, soversion = [
-                s.decode('latin1') if s is not None else s
-                for s in m.groups()]
-            if libcinit and not lib:
-                lib = 'libc'
-            elif glibc:
-                if lib != 'glibc':
-                    lib = 'glibc'
-                    version = glibcversion
-                elif V(glibcversion) > V(version):
-                    version = glibcversion
-            elif so:
-                if lib != 'glibc':
-                    lib = 'libc'
-                    if soversion and (not version or V(soversion) > V(version)):
-                        version = soversion
-                    if threads and version[-len(threads):] != threads:
-                        version = version + threads
-            pos = m.end()
-    return lib, version
-
-def _norm_version(version, build=''):
-
-    """ Normalize the version and build strings and return a single
-        version string using the format major.minor.build (or patchlevel).
-    """
-    l = version.split('.')
-    if build:
-        l.append(build)
-    try:
+    V = _comparable_version 
+    if hasattr(os.path, 'realpath'): 
+        # Python 2.2 introduced os.path.realpath(); it is used 
+        # here to work around problems with Cygwin not being 
+        # able to open symlinks for reading 
+        executable = os.path.realpath(executable) 
+    with open(executable, 'rb') as f: 
+        binary = f.read(chunksize) 
+        pos = 0 
+        while pos < len(binary): 
+            if b'libc' in binary or b'GLIBC' in binary: 
+                m = _libc_search.search(binary, pos) 
+            else: 
+                m = None 
+            if not m or m.end() == len(binary): 
+                chunk = f.read(chunksize) 
+                if chunk: 
+                    binary = binary[max(pos, len(binary) - 1000):] + chunk 
+                    pos = 0 
+                    continue 
+                if not m: 
+                    break 
+            libcinit, glibc, glibcversion, so, threads, soversion = [ 
+                s.decode('latin1') if s is not None else s 
+                for s in m.groups()] 
+            if libcinit and not lib: 
+                lib = 'libc' 
+            elif glibc: 
+                if lib != 'glibc': 
+                    lib = 'glibc' 
+                    version = glibcversion 
+                elif V(glibcversion) > V(version): 
+                    version = glibcversion 
+            elif so: 
+                if lib != 'glibc': 
+                    lib = 'libc' 
+                    if soversion and (not version or V(soversion) > V(version)): 
+                        version = soversion 
+                    if threads and version[-len(threads):] != threads: 
+                        version = version + threads 
+            pos = m.end() 
+    return lib, version 
+ 
+def _norm_version(version, build=''): 
+ 
+    """ Normalize the version and build strings and return a single 
+        version string using the format major.minor.build (or patchlevel). 
+    """ 
+    l = version.split('.') 
+    if build: 
+        l.append(build) 
+    try: 
         strings = list(map(str, map(int, l)))
-    except ValueError:
-        strings = l
-    version = '.'.join(strings[:3])
-    return version
-
-_ver_output = re.compile(r'(?:([\w ]+) ([\w.]+) '
-                         r'.*'
-                         r'\[.* ([\d.]+)\])')
-
-# Examples of VER command output:
-#
-#   Windows 2000:  Microsoft Windows 2000 [Version 5.00.2195]
-#   Windows XP:    Microsoft Windows XP [Version 5.1.2600]
-#   Windows Vista: Microsoft Windows [Version 6.0.6002]
-#
-# Note that the "Version" string gets localized on different
-# Windows versions.
-
-def _syscmd_ver(system='', release='', version='',
-
-               supported_platforms=('win32', 'win16', 'dos')):
-
-    """ Tries to figure out the OS version used and returns
-        a tuple (system, release, version).
-
-        It uses the "ver" shell command for this which is known
-        to exists on Windows, DOS. XXX Others too ?
-
-        In case this fails, the given parameters are used as
-        defaults.
-
-    """
-    if sys.platform not in supported_platforms:
-        return system, release, version
-
-    # Try some common cmd strings
+    except ValueError: 
+        strings = l 
+    version = '.'.join(strings[:3]) 
+    return version 
+ 
+_ver_output = re.compile(r'(?:([\w ]+) ([\w.]+) ' 
+                         r'.*' 
+                         r'\[.* ([\d.]+)\])') 
+ 
+# Examples of VER command output: 
+# 
+#   Windows 2000:  Microsoft Windows 2000 [Version 5.00.2195] 
+#   Windows XP:    Microsoft Windows XP [Version 5.1.2600] 
+#   Windows Vista: Microsoft Windows [Version 6.0.6002] 
+# 
+# Note that the "Version" string gets localized on different 
+# Windows versions. 
+ 
+def _syscmd_ver(system='', release='', version='', 
+ 
+               supported_platforms=('win32', 'win16', 'dos')): 
+ 
+    """ Tries to figure out the OS version used and returns 
+        a tuple (system, release, version). 
+ 
+        It uses the "ver" shell command for this which is known 
+        to exists on Windows, DOS. XXX Others too ? 
+ 
+        In case this fails, the given parameters are used as 
+        defaults. 
+ 
+    """ 
+    if sys.platform not in supported_platforms: 
+        return system, release, version 
+ 
+    # Try some common cmd strings 
     import subprocess
-    for cmd in ('ver', 'command /c ver', 'cmd /c ver'):
-        try:
+    for cmd in ('ver', 'command /c ver', 'cmd /c ver'): 
+        try: 
             info = subprocess.check_output(cmd,
                                            stdin=subprocess.DEVNULL,
                                            stderr=subprocess.DEVNULL,
@@ -286,56 +286,56 @@ def _syscmd_ver(system='', release='', version='',
                                            shell=True)
         except (OSError, subprocess.CalledProcessError) as why:
             #print('Command %s failed: %s' % (cmd, why))
-            continue
-        else:
-            break
-    else:
-        return system, release, version
-
-    # Parse the output
-    info = info.strip()
-    m = _ver_output.match(info)
-    if m is not None:
-        system, release, version = m.groups()
-        # Strip trailing dots from version and release
-        if release[-1] == '.':
-            release = release[:-1]
-        if version[-1] == '.':
-            version = version[:-1]
-        # Normalize the version and build strings (eliminating additional
-        # zeros)
-        version = _norm_version(version)
-    return system, release, version
-
-_WIN32_CLIENT_RELEASES = {
-    (5, 0): "2000",
-    (5, 1): "XP",
-    # Strictly, 5.2 client is XP 64-bit, but platform.py historically
-    # has always called it 2003 Server
-    (5, 2): "2003Server",
-    (5, None): "post2003",
-
-    (6, 0): "Vista",
-    (6, 1): "7",
-    (6, 2): "8",
-    (6, 3): "8.1",
-    (6, None): "post8.1",
-
-    (10, 0): "10",
-    (10, None): "post10",
-}
-
-# Server release name lookup will default to client names if necessary
-_WIN32_SERVER_RELEASES = {
-    (5, 2): "2003Server",
-
-    (6, 0): "2008Server",
-    (6, 1): "2008ServerR2",
-    (6, 2): "2012Server",
-    (6, 3): "2012ServerR2",
-    (6, None): "post2012ServerR2",
-}
-
+            continue 
+        else: 
+            break 
+    else: 
+        return system, release, version 
+ 
+    # Parse the output 
+    info = info.strip() 
+    m = _ver_output.match(info) 
+    if m is not None: 
+        system, release, version = m.groups() 
+        # Strip trailing dots from version and release 
+        if release[-1] == '.': 
+            release = release[:-1] 
+        if version[-1] == '.': 
+            version = version[:-1] 
+        # Normalize the version and build strings (eliminating additional 
+        # zeros) 
+        version = _norm_version(version) 
+    return system, release, version 
+ 
+_WIN32_CLIENT_RELEASES = { 
+    (5, 0): "2000", 
+    (5, 1): "XP", 
+    # Strictly, 5.2 client is XP 64-bit, but platform.py historically 
+    # has always called it 2003 Server 
+    (5, 2): "2003Server", 
+    (5, None): "post2003", 
+ 
+    (6, 0): "Vista", 
+    (6, 1): "7", 
+    (6, 2): "8", 
+    (6, 3): "8.1", 
+    (6, None): "post8.1", 
+ 
+    (10, 0): "10", 
+    (10, None): "post10", 
+} 
+ 
+# Server release name lookup will default to client names if necessary 
+_WIN32_SERVER_RELEASES = { 
+    (5, 2): "2003Server", 
+ 
+    (6, 0): "2008Server", 
+    (6, 1): "2008ServerR2", 
+    (6, 2): "2012Server", 
+    (6, 3): "2012ServerR2", 
+    (6, None): "post2012ServerR2", 
+} 
+ 
 def win32_is_iot():
     return win32_edition() in ('IoTUAP', 'NanoServer', 'WindowsCoreHeadless', 'IoTEdgeOS')
 
@@ -357,46 +357,46 @@ def win32_edition():
 
     return None
 
-def win32_ver(release='', version='', csd='', ptype=''):
-    try:
-        from sys import getwindowsversion
-    except ImportError:
-        return release, version, csd, ptype
-
-    winver = getwindowsversion()
+def win32_ver(release='', version='', csd='', ptype=''): 
+    try: 
+        from sys import getwindowsversion 
+    except ImportError: 
+        return release, version, csd, ptype 
+ 
+    winver = getwindowsversion() 
     try:
         major, minor, build = map(int, _syscmd_ver()[2].split('.'))
     except ValueError:
         major, minor, build = winver.platform_version or winver[:3]
     version = '{0}.{1}.{2}'.format(major, minor, build)
-
+ 
     release = (_WIN32_CLIENT_RELEASES.get((major, minor)) or
                _WIN32_CLIENT_RELEASES.get((major, None)) or
-               release)
-
-    # getwindowsversion() reflect the compatibility mode Python is
-    # running under, and so the service pack value is only going to be
-    # valid if the versions match.
+               release) 
+ 
+    # getwindowsversion() reflect the compatibility mode Python is 
+    # running under, and so the service pack value is only going to be 
+    # valid if the versions match. 
     if winver[:2] == (major, minor):
-        try:
-            csd = 'SP{}'.format(winver.service_pack_major)
-        except AttributeError:
-            if csd[:13] == 'Service Pack ':
-                csd = 'SP' + csd[13:]
-
-    # VER_NT_SERVER = 3
-    if getattr(winver, 'product_type', None) == 3:
+        try: 
+            csd = 'SP{}'.format(winver.service_pack_major) 
+        except AttributeError: 
+            if csd[:13] == 'Service Pack ': 
+                csd = 'SP' + csd[13:] 
+ 
+    # VER_NT_SERVER = 3 
+    if getattr(winver, 'product_type', None) == 3: 
         release = (_WIN32_SERVER_RELEASES.get((major, minor)) or
                    _WIN32_SERVER_RELEASES.get((major, None)) or
-                   release)
-
-    try:
+                   release) 
+ 
+    try: 
         try:
             import winreg
         except ImportError:
             import _winreg as winreg
     except ImportError:
-        pass
+        pass 
     else:
         try:
             cvkey = r'SOFTWARE\Microsoft\Windows NT\CurrentVersion'
@@ -404,327 +404,327 @@ def win32_ver(release='', version='', csd='', ptype=''):
                 ptype = winreg.QueryValueEx(key, 'CurrentType')[0]
         except OSError:
             pass
-
-    return release, version, csd, ptype
-
-
-def _mac_ver_xml():
-    fn = '/System/Library/CoreServices/SystemVersion.plist'
-    if not os.path.exists(fn):
-        return None
-
-    try:
-        import plistlib
-    except ImportError:
-        return None
-
-    with open(fn, 'rb') as f:
-        pl = plistlib.load(f)
-    release = pl['ProductVersion']
-    versioninfo = ('', '', '')
-    machine = os.uname().machine
-    if machine in ('ppc', 'Power Macintosh'):
-        # Canonical name
-        machine = 'PowerPC'
-
-    return release, versioninfo, machine
-
-
-def mac_ver(release='', versioninfo=('', '', ''), machine=''):
-
+ 
+    return release, version, csd, ptype 
+ 
+ 
+def _mac_ver_xml(): 
+    fn = '/System/Library/CoreServices/SystemVersion.plist' 
+    if not os.path.exists(fn): 
+        return None 
+ 
+    try: 
+        import plistlib 
+    except ImportError: 
+        return None 
+ 
+    with open(fn, 'rb') as f: 
+        pl = plistlib.load(f) 
+    release = pl['ProductVersion'] 
+    versioninfo = ('', '', '') 
+    machine = os.uname().machine 
+    if machine in ('ppc', 'Power Macintosh'): 
+        # Canonical name 
+        machine = 'PowerPC' 
+ 
+    return release, versioninfo, machine 
+ 
+ 
+def mac_ver(release='', versioninfo=('', '', ''), machine=''): 
+ 
     """ Get macOS version information and return it as tuple (release,
-        versioninfo, machine) with versioninfo being a tuple (version,
-        dev_stage, non_release_version).
-
-        Entries which cannot be determined are set to the parameter values
-        which default to ''. All tuple entries are strings.
-    """
-
-    # First try reading the information from an XML file which should
-    # always be present
-    info = _mac_ver_xml()
-    if info is not None:
-        return info
-
-    # If that also doesn't work return the default values
-    return release, versioninfo, machine
-
-def _java_getprop(name, default):
-
-    from java.lang import System
-    try:
-        value = System.getProperty(name)
-        if value is None:
-            return default
-        return value
-    except AttributeError:
-        return default
-
-def java_ver(release='', vendor='', vminfo=('', '', ''), osinfo=('', '', '')):
-
-    """ Version interface for Jython.
-
-        Returns a tuple (release, vendor, vminfo, osinfo) with vminfo being
-        a tuple (vm_name, vm_release, vm_vendor) and osinfo being a
-        tuple (os_name, os_version, os_arch).
-
-        Values which cannot be determined are set to the defaults
-        given as parameters (which all default to '').
-
-    """
-    # Import the needed APIs
-    try:
-        import java.lang
-    except ImportError:
-        return release, vendor, vminfo, osinfo
-
-    vendor = _java_getprop('java.vendor', vendor)
-    release = _java_getprop('java.version', release)
-    vm_name, vm_release, vm_vendor = vminfo
-    vm_name = _java_getprop('java.vm.name', vm_name)
-    vm_vendor = _java_getprop('java.vm.vendor', vm_vendor)
-    vm_release = _java_getprop('java.vm.version', vm_release)
-    vminfo = vm_name, vm_release, vm_vendor
-    os_name, os_version, os_arch = osinfo
-    os_arch = _java_getprop('java.os.arch', os_arch)
-    os_name = _java_getprop('java.os.name', os_name)
-    os_version = _java_getprop('java.os.version', os_version)
-    osinfo = os_name, os_version, os_arch
-
-    return release, vendor, vminfo, osinfo
-
-### System name aliasing
-
-def system_alias(system, release, version):
-
-    """ Returns (system, release, version) aliased to common
-        marketing names used for some systems.
-
-        It also does some reordering of the information in some cases
-        where it would otherwise cause confusion.
-
-    """
+        versioninfo, machine) with versioninfo being a tuple (version, 
+        dev_stage, non_release_version). 
+ 
+        Entries which cannot be determined are set to the parameter values 
+        which default to ''. All tuple entries are strings. 
+    """ 
+ 
+    # First try reading the information from an XML file which should 
+    # always be present 
+    info = _mac_ver_xml() 
+    if info is not None: 
+        return info 
+ 
+    # If that also doesn't work return the default values 
+    return release, versioninfo, machine 
+ 
+def _java_getprop(name, default): 
+ 
+    from java.lang import System 
+    try: 
+        value = System.getProperty(name) 
+        if value is None: 
+            return default 
+        return value 
+    except AttributeError: 
+        return default 
+ 
+def java_ver(release='', vendor='', vminfo=('', '', ''), osinfo=('', '', '')): 
+ 
+    """ Version interface for Jython. 
+ 
+        Returns a tuple (release, vendor, vminfo, osinfo) with vminfo being 
+        a tuple (vm_name, vm_release, vm_vendor) and osinfo being a 
+        tuple (os_name, os_version, os_arch). 
+ 
+        Values which cannot be determined are set to the defaults 
+        given as parameters (which all default to ''). 
+ 
+    """ 
+    # Import the needed APIs 
+    try: 
+        import java.lang 
+    except ImportError: 
+        return release, vendor, vminfo, osinfo 
+ 
+    vendor = _java_getprop('java.vendor', vendor) 
+    release = _java_getprop('java.version', release) 
+    vm_name, vm_release, vm_vendor = vminfo 
+    vm_name = _java_getprop('java.vm.name', vm_name) 
+    vm_vendor = _java_getprop('java.vm.vendor', vm_vendor) 
+    vm_release = _java_getprop('java.vm.version', vm_release) 
+    vminfo = vm_name, vm_release, vm_vendor 
+    os_name, os_version, os_arch = osinfo 
+    os_arch = _java_getprop('java.os.arch', os_arch) 
+    os_name = _java_getprop('java.os.name', os_name) 
+    os_version = _java_getprop('java.os.version', os_version) 
+    osinfo = os_name, os_version, os_arch 
+ 
+    return release, vendor, vminfo, osinfo 
+ 
+### System name aliasing 
+ 
+def system_alias(system, release, version): 
+ 
+    """ Returns (system, release, version) aliased to common 
+        marketing names used for some systems. 
+ 
+        It also does some reordering of the information in some cases 
+        where it would otherwise cause confusion. 
+ 
+    """ 
     if system == 'SunOS':
-        # Sun's OS
-        if release < '5':
-            # These releases use the old name SunOS
-            return system, release, version
-        # Modify release (marketing release = SunOS release - 3)
-        l = release.split('.')
-        if l:
-            try:
-                major = int(l[0])
-            except ValueError:
-                pass
-            else:
-                major = major - 3
-                l[0] = str(major)
-                release = '.'.join(l)
-        if release < '6':
-            system = 'Solaris'
-        else:
-            # XXX Whatever the new SunOS marketing name is...
-            system = 'Solaris'
-
-    elif system == 'IRIX64':
-        # IRIX reports IRIX64 on platforms with 64-bit support; yet it
-        # is really a version and not a different platform, since 32-bit
-        # apps are also supported..
-        system = 'IRIX'
-        if version:
-            version = version + ' (64bit)'
-        else:
-            version = '64bit'
-
-    elif system in ('win32', 'win16'):
-        # In case one of the other tricks
-        system = 'Windows'
-
+        # Sun's OS 
+        if release < '5': 
+            # These releases use the old name SunOS 
+            return system, release, version 
+        # Modify release (marketing release = SunOS release - 3) 
+        l = release.split('.') 
+        if l: 
+            try: 
+                major = int(l[0]) 
+            except ValueError: 
+                pass 
+            else: 
+                major = major - 3 
+                l[0] = str(major) 
+                release = '.'.join(l) 
+        if release < '6': 
+            system = 'Solaris' 
+        else: 
+            # XXX Whatever the new SunOS marketing name is... 
+            system = 'Solaris' 
+ 
+    elif system == 'IRIX64': 
+        # IRIX reports IRIX64 on platforms with 64-bit support; yet it 
+        # is really a version and not a different platform, since 32-bit 
+        # apps are also supported.. 
+        system = 'IRIX' 
+        if version: 
+            version = version + ' (64bit)' 
+        else: 
+            version = '64bit' 
+ 
+    elif system in ('win32', 'win16'): 
+        # In case one of the other tricks 
+        system = 'Windows' 
+ 
     # bpo-35516: Don't replace Darwin with macOS since input release and
     # version arguments can be different than the currently running version.
 
-    return system, release, version
-
-### Various internal helpers
-
-def _platform(*args):
-
-    """ Helper to format the platform string in a filename
-        compatible format e.g. "system-version-machine".
-    """
-    # Format the platform string
-    platform = '-'.join(x.strip() for x in filter(len, args))
-
-    # Cleanup some possible filename obstacles...
-    platform = platform.replace(' ', '_')
-    platform = platform.replace('/', '-')
-    platform = platform.replace('\\', '-')
-    platform = platform.replace(':', '-')
-    platform = platform.replace(';', '-')
-    platform = platform.replace('"', '-')
-    platform = platform.replace('(', '-')
-    platform = platform.replace(')', '-')
-
-    # No need to report 'unknown' information...
-    platform = platform.replace('unknown', '')
-
-    # Fold '--'s and remove trailing '-'
-    while 1:
-        cleaned = platform.replace('--', '-')
-        if cleaned == platform:
-            break
-        platform = cleaned
-    while platform[-1] == '-':
-        platform = platform[:-1]
-
-    return platform
-
-def _node(default=''):
-
-    """ Helper to determine the node name of this machine.
-    """
-    try:
-        import socket
-    except ImportError:
-        # No sockets...
-        return default
-    try:
-        return socket.gethostname()
-    except OSError:
-        # Still not working...
-        return default
-
-def _follow_symlinks(filepath):
-
-    """ In case filepath is a symlink, follow it until a
-        real file is reached.
-    """
-    filepath = os.path.abspath(filepath)
-    while os.path.islink(filepath):
-        filepath = os.path.normpath(
-            os.path.join(os.path.dirname(filepath), os.readlink(filepath)))
-    return filepath
-
-
-def _syscmd_file(target, default=''):
-
-    """ Interface to the system's file command.
-
-        The function uses the -b option of the file command to have it
-        omit the filename in its output. Follow the symlinks. It returns
-        default in case the command should fail.
-
-    """
-    if sys.platform in ('dos', 'win32', 'win16'):
-        # XXX Others too ?
-        return default
+    return system, release, version 
+ 
+### Various internal helpers 
+ 
+def _platform(*args): 
+ 
+    """ Helper to format the platform string in a filename 
+        compatible format e.g. "system-version-machine". 
+    """ 
+    # Format the platform string 
+    platform = '-'.join(x.strip() for x in filter(len, args)) 
+ 
+    # Cleanup some possible filename obstacles... 
+    platform = platform.replace(' ', '_') 
+    platform = platform.replace('/', '-') 
+    platform = platform.replace('\\', '-') 
+    platform = platform.replace(':', '-') 
+    platform = platform.replace(';', '-') 
+    platform = platform.replace('"', '-') 
+    platform = platform.replace('(', '-') 
+    platform = platform.replace(')', '-') 
+ 
+    # No need to report 'unknown' information... 
+    platform = platform.replace('unknown', '') 
+ 
+    # Fold '--'s and remove trailing '-' 
+    while 1: 
+        cleaned = platform.replace('--', '-') 
+        if cleaned == platform: 
+            break 
+        platform = cleaned 
+    while platform[-1] == '-': 
+        platform = platform[:-1] 
+ 
+    return platform 
+ 
+def _node(default=''): 
+ 
+    """ Helper to determine the node name of this machine. 
+    """ 
+    try: 
+        import socket 
+    except ImportError: 
+        # No sockets... 
+        return default 
+    try: 
+        return socket.gethostname() 
+    except OSError: 
+        # Still not working... 
+        return default 
+ 
+def _follow_symlinks(filepath): 
+ 
+    """ In case filepath is a symlink, follow it until a 
+        real file is reached. 
+    """ 
+    filepath = os.path.abspath(filepath) 
+    while os.path.islink(filepath): 
+        filepath = os.path.normpath( 
+            os.path.join(os.path.dirname(filepath), os.readlink(filepath))) 
+    return filepath 
+ 
+ 
+def _syscmd_file(target, default=''): 
+ 
+    """ Interface to the system's file command. 
+ 
+        The function uses the -b option of the file command to have it 
+        omit the filename in its output. Follow the symlinks. It returns 
+        default in case the command should fail. 
+ 
+    """ 
+    if sys.platform in ('dos', 'win32', 'win16'): 
+        # XXX Others too ? 
+        return default 
 
     import subprocess
-    target = _follow_symlinks(target)
+    target = _follow_symlinks(target) 
     # "file" output is locale dependent: force the usage of the C locale
     # to get deterministic behavior.
     env = dict(os.environ, LC_ALL='C')
-    try:
+    try: 
         # -b: do not prepend filenames to output lines (brief mode)
         output = subprocess.check_output(['file', '-b', target],
                                          stderr=subprocess.DEVNULL,
                                          env=env)
     except (OSError, subprocess.CalledProcessError):
-        return default
+        return default 
     if not output:
-        return default
+        return default 
     # With the C locale, the output should be mostly ASCII-compatible.
     # Decode from Latin-1 to prevent Unicode decode error.
     return output.decode('latin-1')
-
-### Information about the used architecture
-
-# Default values for architecture; non-empty strings override the
-# defaults given as parameters
-_default_architecture = {
-    'win32': ('', 'WindowsPE'),
-    'win16': ('', 'Windows'),
-    'dos': ('', 'MSDOS'),
-}
-
-def architecture(executable=sys.executable, bits='', linkage=''):
-
-    """ Queries the given executable (defaults to the Python interpreter
-        binary) for various architecture information.
-
-        Returns a tuple (bits, linkage) which contains information about
-        the bit architecture and the linkage format used for the
-        executable. Both values are returned as strings.
-
-        Values that cannot be determined are returned as given by the
-        parameter presets. If bits is given as '', the sizeof(pointer)
-        (or sizeof(long) on Python version < 1.5.2) is used as
-        indicator for the supported pointer size.
-
-        The function relies on the system's "file" command to do the
-        actual work. This is available on most if not all Unix
-        platforms. On some non-Unix platforms where the "file" command
-        does not exist and the executable is set to the Python interpreter
-        binary defaults from _default_architecture are used.
-
-    """
-    # Use the sizeof(pointer) as default number of bits if nothing
-    # else is given as default.
-    if not bits:
-        import struct
+ 
+### Information about the used architecture 
+ 
+# Default values for architecture; non-empty strings override the 
+# defaults given as parameters 
+_default_architecture = { 
+    'win32': ('', 'WindowsPE'), 
+    'win16': ('', 'Windows'), 
+    'dos': ('', 'MSDOS'), 
+} 
+ 
+def architecture(executable=sys.executable, bits='', linkage=''): 
+ 
+    """ Queries the given executable (defaults to the Python interpreter 
+        binary) for various architecture information. 
+ 
+        Returns a tuple (bits, linkage) which contains information about 
+        the bit architecture and the linkage format used for the 
+        executable. Both values are returned as strings. 
+ 
+        Values that cannot be determined are returned as given by the 
+        parameter presets. If bits is given as '', the sizeof(pointer) 
+        (or sizeof(long) on Python version < 1.5.2) is used as 
+        indicator for the supported pointer size. 
+ 
+        The function relies on the system's "file" command to do the 
+        actual work. This is available on most if not all Unix 
+        platforms. On some non-Unix platforms where the "file" command 
+        does not exist and the executable is set to the Python interpreter 
+        binary defaults from _default_architecture are used. 
+ 
+    """ 
+    # Use the sizeof(pointer) as default number of bits if nothing 
+    # else is given as default. 
+    if not bits: 
+        import struct 
         size = struct.calcsize('P')
         bits = str(size * 8) + 'bit'
-
-    # Get data from the 'file' system command
-    if executable:
-        fileout = _syscmd_file(executable, '')
-    else:
-        fileout = ''
-
-    if not fileout and \
-       executable == sys.executable:
-        # "file" command did not return anything; we'll try to provide
-        # some sensible defaults then...
-        if sys.platform in _default_architecture:
-            b, l = _default_architecture[sys.platform]
-            if b:
-                bits = b
-            if l:
-                linkage = l
-        return bits, linkage
-
+ 
+    # Get data from the 'file' system command 
+    if executable: 
+        fileout = _syscmd_file(executable, '') 
+    else: 
+        fileout = '' 
+ 
+    if not fileout and \ 
+       executable == sys.executable: 
+        # "file" command did not return anything; we'll try to provide 
+        # some sensible defaults then... 
+        if sys.platform in _default_architecture: 
+            b, l = _default_architecture[sys.platform] 
+            if b: 
+                bits = b 
+            if l: 
+                linkage = l 
+        return bits, linkage 
+ 
     if 'executable' not in fileout and 'shared object' not in fileout:
-        # Format not supported
-        return bits, linkage
-
-    # Bits
-    if '32-bit' in fileout:
-        bits = '32bit'
-    elif 'N32' in fileout:
-        # On Irix only
-        bits = 'n32bit'
-    elif '64-bit' in fileout:
-        bits = '64bit'
-
-    # Linkage
-    if 'ELF' in fileout:
-        linkage = 'ELF'
-    elif 'PE' in fileout:
-        # E.g. Windows uses this format
-        if 'Windows' in fileout:
-            linkage = 'WindowsPE'
-        else:
-            linkage = 'PE'
-    elif 'COFF' in fileout:
-        linkage = 'COFF'
-    elif 'MS-DOS' in fileout:
-        linkage = 'MSDOS'
-    else:
-        # XXX the A.OUT format also falls under this class...
-        pass
-
-    return bits, linkage
-
+        # Format not supported 
+        return bits, linkage 
+ 
+    # Bits 
+    if '32-bit' in fileout: 
+        bits = '32bit' 
+    elif 'N32' in fileout: 
+        # On Irix only 
+        bits = 'n32bit' 
+    elif '64-bit' in fileout: 
+        bits = '64bit' 
+ 
+    # Linkage 
+    if 'ELF' in fileout: 
+        linkage = 'ELF' 
+    elif 'PE' in fileout: 
+        # E.g. Windows uses this format 
+        if 'Windows' in fileout: 
+            linkage = 'WindowsPE' 
+        else: 
+            linkage = 'PE' 
+    elif 'COFF' in fileout: 
+        linkage = 'COFF' 
+    elif 'MS-DOS' in fileout: 
+        linkage = 'MSDOS' 
+    else: 
+        # XXX the A.OUT format also falls under this class... 
+        pass 
+ 
+    return bits, linkage 
+ 
 
 def _get_machine_win32():
     # Try to use the PROCESSOR_* environment variables
@@ -775,8 +775,8 @@ def _unknown_as_blank(val):
     return '' if val == 'unknown' else val
 
 
-### Portable uname() interface
-
+### Portable uname() interface 
+ 
 class uname_result(
     collections.namedtuple(
         "uname_result_base",
@@ -788,7 +788,7 @@ class uname_result(
     resolved late and cached to avoid calling "uname"
     except when needed.
     """
-
+ 
     @functools.cached_property
     def processor(self):
         return _unknown_as_blank(_Processor.get())
@@ -819,402 +819,402 @@ class uname_result(
         return uname_result, tuple(self)[:len(self._fields)]
 
 
-_uname_cache = None
-
-
-def uname():
-
-    """ Fairly portable uname interface. Returns a tuple
-        of strings (system, node, release, version, machine, processor)
-        identifying the underlying platform.
-
-        Note that unlike the os.uname function this also returns
-        possible processor information as an additional tuple entry.
-
-        Entries which cannot be determined are set to ''.
-
-    """
-    global _uname_cache
-
-    if _uname_cache is not None:
-        return _uname_cache
-
-    # Get some infos from the builtin os.uname API...
-    try:
+_uname_cache = None 
+ 
+
+def uname(): 
+ 
+    """ Fairly portable uname interface. Returns a tuple 
+        of strings (system, node, release, version, machine, processor) 
+        identifying the underlying platform. 
+ 
+        Note that unlike the os.uname function this also returns 
+        possible processor information as an additional tuple entry. 
+ 
+        Entries which cannot be determined are set to ''. 
+ 
+    """ 
+    global _uname_cache 
+ 
+    if _uname_cache is not None: 
+        return _uname_cache 
+ 
+    # Get some infos from the builtin os.uname API... 
+    try: 
         system, node, release, version, machine = infos = os.uname()
-    except AttributeError:
+    except AttributeError: 
         system = sys.platform
         node = _node()
         release = version = machine = ''
         infos = ()
-
+ 
     if not any(infos):
         # uname is not available
-
-        # Try win32_ver() on win32 platforms
-        if system == 'win32':
-            release, version, csd, ptype = win32_ver()
+ 
+        # Try win32_ver() on win32 platforms 
+        if system == 'win32': 
+            release, version, csd, ptype = win32_ver() 
             machine = machine or _get_machine_win32()
-
-        # Try the 'ver' system command available on some
-        # platforms
+ 
+        # Try the 'ver' system command available on some 
+        # platforms 
         if not (release and version):
-            system, release, version = _syscmd_ver(system)
-            # Normalize system to what win32_ver() normally returns
-            # (_syscmd_ver() tends to return the vendor name as well)
-            if system == 'Microsoft Windows':
-                system = 'Windows'
-            elif system == 'Microsoft' and release == 'Windows':
-                # Under Windows Vista and Windows Server 2008,
-                # Microsoft changed the output of the ver command. The
-                # release is no longer printed.  This causes the
-                # system and release to be misidentified.
-                system = 'Windows'
-                if '6.0' == version[:3]:
-                    release = 'Vista'
-                else:
-                    release = ''
-
-        # In case we still don't know anything useful, we'll try to
-        # help ourselves
-        if system in ('win32', 'win16'):
-            if not version:
-                if system == 'win32':
-                    version = '32bit'
-                else:
-                    version = '16bit'
-            system = 'Windows'
-
-        elif system[:4] == 'java':
-            release, vendor, vminfo, osinfo = java_ver()
-            system = 'Java'
-            version = ', '.join(vminfo)
-            if not version:
-                version = vendor
-
-    # System specific extensions
-    if system == 'OpenVMS':
-        # OpenVMS seems to have release and version mixed up
-        if not release or release == '0':
-            release = version
-            version = ''
-
-    #  normalize name
-    if system == 'Microsoft' and release == 'Windows':
-        system = 'Windows'
-        release = 'Vista'
-
+            system, release, version = _syscmd_ver(system) 
+            # Normalize system to what win32_ver() normally returns 
+            # (_syscmd_ver() tends to return the vendor name as well) 
+            if system == 'Microsoft Windows': 
+                system = 'Windows' 
+            elif system == 'Microsoft' and release == 'Windows': 
+                # Under Windows Vista and Windows Server 2008, 
+                # Microsoft changed the output of the ver command. The 
+                # release is no longer printed.  This causes the 
+                # system and release to be misidentified. 
+                system = 'Windows' 
+                if '6.0' == version[:3]: 
+                    release = 'Vista' 
+                else: 
+                    release = '' 
+ 
+        # In case we still don't know anything useful, we'll try to 
+        # help ourselves 
+        if system in ('win32', 'win16'): 
+            if not version: 
+                if system == 'win32': 
+                    version = '32bit' 
+                else: 
+                    version = '16bit' 
+            system = 'Windows' 
+ 
+        elif system[:4] == 'java': 
+            release, vendor, vminfo, osinfo = java_ver() 
+            system = 'Java' 
+            version = ', '.join(vminfo) 
+            if not version: 
+                version = vendor 
+ 
+    # System specific extensions 
+    if system == 'OpenVMS': 
+        # OpenVMS seems to have release and version mixed up 
+        if not release or release == '0': 
+            release = version 
+            version = '' 
+ 
+    #  normalize name 
+    if system == 'Microsoft' and release == 'Windows': 
+        system = 'Windows' 
+        release = 'Vista' 
+ 
     vals = system, node, release, version, machine
     # Replace 'unknown' values with the more portable ''
     _uname_cache = uname_result(*map(_unknown_as_blank, vals))
-    return _uname_cache
-
-### Direct interfaces to some of the uname() return values
-
-def system():
-
-    """ Returns the system/OS name, e.g. 'Linux', 'Windows' or 'Java'.
-
-        An empty string is returned if the value cannot be determined.
-
-    """
-    return uname().system
-
-def node():
-
-    """ Returns the computer's network name (which may not be fully
-        qualified)
-
-        An empty string is returned if the value cannot be determined.
-
-    """
-    return uname().node
-
-def release():
-
-    """ Returns the system's release, e.g. '2.2.0' or 'NT'
-
-        An empty string is returned if the value cannot be determined.
-
-    """
-    return uname().release
-
-def version():
-
-    """ Returns the system's release version, e.g. '#3 on degas'
-
-        An empty string is returned if the value cannot be determined.
-
-    """
-    return uname().version
-
-def machine():
-
-    """ Returns the machine type, e.g. 'i386'
-
-        An empty string is returned if the value cannot be determined.
-
-    """
-    return uname().machine
-
-def processor():
-
-    """ Returns the (true) processor name, e.g. 'amdk6'
-
-        An empty string is returned if the value cannot be
-        determined. Note that many platforms do not provide this
-        information or simply return the same value as for machine(),
-        e.g.  NetBSD does this.
-
-    """
-    return uname().processor
-
-### Various APIs for extracting information from sys.version
-
-_sys_version_parser = re.compile(
-    r'([\w.+]+)\s*'  # "version<space>"
-    r'\(#?([^,]+)'  # "(#buildno"
-    r'(?:,\s*([\w ]*)'  # ", builddate"
-    r'(?:,\s*([\w :]*))?)?\)\s*'  # ", buildtime)<space>"
-    r'\[([^\]]+)\]?', re.ASCII)  # "[compiler]"
-
-_ironpython_sys_version_parser = re.compile(
-    r'IronPython\s*'
-    r'([\d\.]+)'
-    r'(?: \(([\d\.]+)\))?'
-    r' on (.NET [\d\.]+)', re.ASCII)
-
-# IronPython covering 2.6 and 2.7
-_ironpython26_sys_version_parser = re.compile(
-    r'([\d.]+)\s*'
-    r'\(IronPython\s*'
-    r'[\d.]+\s*'
-    r'\(([\d.]+)\) on ([\w.]+ [\d.]+(?: \(\d+-bit\))?)\)'
-)
-
-_pypy_sys_version_parser = re.compile(
-    r'([\w.+]+)\s*'
-    r'\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*'
-    r'\[PyPy [^\]]+\]?')
-
-_sys_version_cache = {}
-
-def _sys_version(sys_version=None):
-
-    """ Returns a parsed version of Python's sys.version as tuple
-        (name, version, branch, revision, buildno, builddate, compiler)
-        referring to the Python implementation name, version, branch,
-        revision, build number, build date/time as string and the compiler
-        identification string.
-
-        Note that unlike the Python sys.version, the returned value
-        for the Python version will always include the patchlevel (it
-        defaults to '.0').
-
-        The function returns empty strings for tuple entries that
-        cannot be determined.
-
-        sys_version may be given to parse an alternative version
-        string, e.g. if the version was read from a different Python
-        interpreter.
-
-    """
-    # Get the Python version
-    if sys_version is None:
-        sys_version = sys.version
-
-    # Try the cache first
-    result = _sys_version_cache.get(sys_version, None)
-    if result is not None:
-        return result
-
-    # Parse it
-    if 'IronPython' in sys_version:
-        # IronPython
-        name = 'IronPython'
-        if sys_version.startswith('IronPython'):
-            match = _ironpython_sys_version_parser.match(sys_version)
-        else:
-            match = _ironpython26_sys_version_parser.match(sys_version)
-
-        if match is None:
-            raise ValueError(
-                'failed to parse IronPython sys.version: %s' %
-                repr(sys_version))
-
-        version, alt_version, compiler = match.groups()
-        buildno = ''
-        builddate = ''
-
-    elif sys.platform.startswith('java'):
-        # Jython
-        name = 'Jython'
-        match = _sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError(
-                'failed to parse Jython sys.version: %s' %
-                repr(sys_version))
-        version, buildno, builddate, buildtime, _ = match.groups()
-        if builddate is None:
-            builddate = ''
-        compiler = sys.platform
-
-    elif "PyPy" in sys_version:
-        # PyPy
-        name = "PyPy"
-        match = _pypy_sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError("failed to parse PyPy sys.version: %s" %
-                             repr(sys_version))
-        version, buildno, builddate, buildtime = match.groups()
-        compiler = ""
-
-    else:
-        # CPython
-        match = _sys_version_parser.match(sys_version)
-        if match is None:
-            raise ValueError(
-                'failed to parse CPython sys.version: %s' %
-                repr(sys_version))
-        version, buildno, builddate, buildtime, compiler = \
-              match.groups()
-        name = 'CPython'
-        if builddate is None:
-            builddate = ''
-        elif buildtime:
-            builddate = builddate + ' ' + buildtime
-
-    if hasattr(sys, '_git'):
-        _, branch, revision = sys._git
-    elif hasattr(sys, '_mercurial'):
-        _, branch, revision = sys._mercurial
-    else:
-        branch = ''
-        revision = ''
-
-    # Add the patchlevel version if missing
-    l = version.split('.')
-    if len(l) == 2:
-        l.append('0')
-        version = '.'.join(l)
-
-    # Build and cache the result
-    result = (name, version, branch, revision, buildno, builddate, compiler)
-    _sys_version_cache[sys_version] = result
-    return result
-
-def python_implementation():
-
-    """ Returns a string identifying the Python implementation.
-
-        Currently, the following implementations are identified:
-          'CPython' (C implementation of Python),
-          'IronPython' (.NET implementation of Python),
-          'Jython' (Java implementation of Python),
-          'PyPy' (Python implementation of Python).
-
-    """
-    return _sys_version()[0]
-
-def python_version():
-
-    """ Returns the Python version as string 'major.minor.patchlevel'
-
-        Note that unlike the Python sys.version, the returned value
-        will always include the patchlevel (it defaults to 0).
-
-    """
-    return _sys_version()[1]
-
-def python_version_tuple():
-
-    """ Returns the Python version as tuple (major, minor, patchlevel)
-        of strings.
-
-        Note that unlike the Python sys.version, the returned value
-        will always include the patchlevel (it defaults to 0).
-
-    """
-    return tuple(_sys_version()[1].split('.'))
-
-def python_branch():
-
-    """ Returns a string identifying the Python implementation
-        branch.
-
-        For CPython this is the SCM branch from which the
-        Python binary was built.
-
-        If not available, an empty string is returned.
-
-    """
-
-    return _sys_version()[2]
-
-def python_revision():
-
-    """ Returns a string identifying the Python implementation
-        revision.
-
-        For CPython this is the SCM revision from which the
-        Python binary was built.
-
-        If not available, an empty string is returned.
-
-    """
-    return _sys_version()[3]
-
-def python_build():
-
-    """ Returns a tuple (buildno, builddate) stating the Python
-        build number and date as strings.
-
-    """
-    return _sys_version()[4:6]
-
-def python_compiler():
-
-    """ Returns a string identifying the compiler used for compiling
-        Python.
-
-    """
-    return _sys_version()[6]
-
-### The Opus Magnum of platform strings :-)
-
-_platform_cache = {}
-
-def platform(aliased=0, terse=0):
-
-    """ Returns a single string identifying the underlying platform
-        with as much useful information as possible (but no more :).
-
-        The output is intended to be human readable rather than
-        machine parseable. It may look different on different
-        platforms and this is intended.
-
-        If "aliased" is true, the function will use aliases for
-        various platforms that report system names which differ from
-        their common names, e.g. SunOS will be reported as
-        Solaris. The system_alias() function is used to implement
-        this.
-
-        Setting terse to true causes the function to return only the
-        absolute minimum information needed to identify the platform.
-
-    """
-    result = _platform_cache.get((aliased, terse), None)
-    if result is not None:
-        return result
-
-    # Get uname information and then apply platform specific cosmetics
-    # to it...
-    system, node, release, version, machine, processor = uname()
-    if machine == processor:
-        processor = ''
-    if aliased:
-        system, release, version = system_alias(system, release, version)
-
+    return _uname_cache 
+ 
+### Direct interfaces to some of the uname() return values 
+ 
+def system(): 
+ 
+    """ Returns the system/OS name, e.g. 'Linux', 'Windows' or 'Java'. 
+ 
+        An empty string is returned if the value cannot be determined. 
+ 
+    """ 
+    return uname().system 
+ 
+def node(): 
+ 
+    """ Returns the computer's network name (which may not be fully 
+        qualified) 
+ 
+        An empty string is returned if the value cannot be determined. 
+ 
+    """ 
+    return uname().node 
+ 
+def release(): 
+ 
+    """ Returns the system's release, e.g. '2.2.0' or 'NT' 
+ 
+        An empty string is returned if the value cannot be determined. 
+ 
+    """ 
+    return uname().release 
+ 
+def version(): 
+ 
+    """ Returns the system's release version, e.g. '#3 on degas' 
+ 
+        An empty string is returned if the value cannot be determined. 
+ 
+    """ 
+    return uname().version 
+ 
+def machine(): 
+ 
+    """ Returns the machine type, e.g. 'i386' 
+ 
+        An empty string is returned if the value cannot be determined. 
+ 
+    """ 
+    return uname().machine 
+ 
+def processor(): 
+ 
+    """ Returns the (true) processor name, e.g. 'amdk6' 
+ 
+        An empty string is returned if the value cannot be 
+        determined. Note that many platforms do not provide this 
+        information or simply return the same value as for machine(), 
+        e.g.  NetBSD does this. 
+ 
+    """ 
+    return uname().processor 
+ 
+### Various APIs for extracting information from sys.version 
+ 
+_sys_version_parser = re.compile( 
+    r'([\w.+]+)\s*'  # "version<space>" 
+    r'\(#?([^,]+)'  # "(#buildno" 
+    r'(?:,\s*([\w ]*)'  # ", builddate" 
+    r'(?:,\s*([\w :]*))?)?\)\s*'  # ", buildtime)<space>" 
+    r'\[([^\]]+)\]?', re.ASCII)  # "[compiler]" 
+ 
+_ironpython_sys_version_parser = re.compile( 
+    r'IronPython\s*' 
+    r'([\d\.]+)' 
+    r'(?: \(([\d\.]+)\))?' 
+    r' on (.NET [\d\.]+)', re.ASCII) 
+ 
+# IronPython covering 2.6 and 2.7 
+_ironpython26_sys_version_parser = re.compile( 
+    r'([\d.]+)\s*' 
+    r'\(IronPython\s*' 
+    r'[\d.]+\s*' 
+    r'\(([\d.]+)\) on ([\w.]+ [\d.]+(?: \(\d+-bit\))?)\)' 
+) 
+ 
+_pypy_sys_version_parser = re.compile( 
+    r'([\w.+]+)\s*' 
+    r'\(#?([^,]+),\s*([\w ]+),\s*([\w :]+)\)\s*' 
+    r'\[PyPy [^\]]+\]?') 
+ 
+_sys_version_cache = {} 
+ 
+def _sys_version(sys_version=None): 
+ 
+    """ Returns a parsed version of Python's sys.version as tuple 
+        (name, version, branch, revision, buildno, builddate, compiler) 
+        referring to the Python implementation name, version, branch, 
+        revision, build number, build date/time as string and the compiler 
+        identification string. 
+ 
+        Note that unlike the Python sys.version, the returned value 
+        for the Python version will always include the patchlevel (it 
+        defaults to '.0'). 
+ 
+        The function returns empty strings for tuple entries that 
+        cannot be determined. 
+ 
+        sys_version may be given to parse an alternative version 
+        string, e.g. if the version was read from a different Python 
+        interpreter. 
+ 
+    """ 
+    # Get the Python version 
+    if sys_version is None: 
+        sys_version = sys.version 
+ 
+    # Try the cache first 
+    result = _sys_version_cache.get(sys_version, None) 
+    if result is not None: 
+        return result 
+ 
+    # Parse it 
+    if 'IronPython' in sys_version: 
+        # IronPython 
+        name = 'IronPython' 
+        if sys_version.startswith('IronPython'): 
+            match = _ironpython_sys_version_parser.match(sys_version) 
+        else: 
+            match = _ironpython26_sys_version_parser.match(sys_version) 
+ 
+        if match is None: 
+            raise ValueError( 
+                'failed to parse IronPython sys.version: %s' % 
+                repr(sys_version)) 
+ 
+        version, alt_version, compiler = match.groups() 
+        buildno = '' 
+        builddate = '' 
+ 
+    elif sys.platform.startswith('java'): 
+        # Jython 
+        name = 'Jython' 
+        match = _sys_version_parser.match(sys_version) 
+        if match is None: 
+            raise ValueError( 
+                'failed to parse Jython sys.version: %s' % 
+                repr(sys_version)) 
+        version, buildno, builddate, buildtime, _ = match.groups() 
+        if builddate is None: 
+            builddate = '' 
+        compiler = sys.platform 
+ 
+    elif "PyPy" in sys_version: 
+        # PyPy 
+        name = "PyPy" 
+        match = _pypy_sys_version_parser.match(sys_version) 
+        if match is None: 
+            raise ValueError("failed to parse PyPy sys.version: %s" % 
+                             repr(sys_version)) 
+        version, buildno, builddate, buildtime = match.groups() 
+        compiler = "" 
+ 
+    else: 
+        # CPython 
+        match = _sys_version_parser.match(sys_version) 
+        if match is None: 
+            raise ValueError( 
+                'failed to parse CPython sys.version: %s' % 
+                repr(sys_version)) 
+        version, buildno, builddate, buildtime, compiler = \ 
+              match.groups() 
+        name = 'CPython' 
+        if builddate is None: 
+            builddate = '' 
+        elif buildtime: 
+            builddate = builddate + ' ' + buildtime 
+ 
+    if hasattr(sys, '_git'): 
+        _, branch, revision = sys._git 
+    elif hasattr(sys, '_mercurial'): 
+        _, branch, revision = sys._mercurial 
+    else: 
+        branch = '' 
+        revision = '' 
+ 
+    # Add the patchlevel version if missing 
+    l = version.split('.') 
+    if len(l) == 2: 
+        l.append('0') 
+        version = '.'.join(l) 
+ 
+    # Build and cache the result 
+    result = (name, version, branch, revision, buildno, builddate, compiler) 
+    _sys_version_cache[sys_version] = result 
+    return result 
+ 
+def python_implementation(): 
+ 
+    """ Returns a string identifying the Python implementation. 
+ 
+        Currently, the following implementations are identified: 
+          'CPython' (C implementation of Python), 
+          'IronPython' (.NET implementation of Python), 
+          'Jython' (Java implementation of Python), 
+          'PyPy' (Python implementation of Python). 
+ 
+    """ 
+    return _sys_version()[0] 
+ 
+def python_version(): 
+ 
+    """ Returns the Python version as string 'major.minor.patchlevel' 
+ 
+        Note that unlike the Python sys.version, the returned value 
+        will always include the patchlevel (it defaults to 0). 
+ 
+    """ 
+    return _sys_version()[1] 
+ 
+def python_version_tuple(): 
+ 
+    """ Returns the Python version as tuple (major, minor, patchlevel) 
+        of strings. 
+ 
+        Note that unlike the Python sys.version, the returned value 
+        will always include the patchlevel (it defaults to 0). 
+ 
+    """ 
+    return tuple(_sys_version()[1].split('.')) 
+ 
+def python_branch(): 
+ 
+    """ Returns a string identifying the Python implementation 
+        branch. 
+ 
+        For CPython this is the SCM branch from which the 
+        Python binary was built. 
+ 
+        If not available, an empty string is returned. 
+ 
+    """ 
+ 
+    return _sys_version()[2] 
+ 
+def python_revision(): 
+ 
+    """ Returns a string identifying the Python implementation 
+        revision. 
+ 
+        For CPython this is the SCM revision from which the 
+        Python binary was built. 
+ 
+        If not available, an empty string is returned. 
+ 
+    """ 
+    return _sys_version()[3] 
+ 
+def python_build(): 
+ 
+    """ Returns a tuple (buildno, builddate) stating the Python 
+        build number and date as strings. 
+ 
+    """ 
+    return _sys_version()[4:6] 
+ 
+def python_compiler(): 
+ 
+    """ Returns a string identifying the compiler used for compiling 
+        Python. 
+ 
+    """ 
+    return _sys_version()[6] 
+ 
+### The Opus Magnum of platform strings :-) 
+ 
+_platform_cache = {} 
+ 
+def platform(aliased=0, terse=0): 
+ 
+    """ Returns a single string identifying the underlying platform 
+        with as much useful information as possible (but no more :). 
+ 
+        The output is intended to be human readable rather than 
+        machine parseable. It may look different on different 
+        platforms and this is intended. 
+ 
+        If "aliased" is true, the function will use aliases for 
+        various platforms that report system names which differ from 
+        their common names, e.g. SunOS will be reported as 
+        Solaris. The system_alias() function is used to implement 
+        this. 
+ 
+        Setting terse to true causes the function to return only the 
+        absolute minimum information needed to identify the platform. 
+ 
+    """ 
+    result = _platform_cache.get((aliased, terse), None) 
+    if result is not None: 
+        return result 
+ 
+    # Get uname information and then apply platform specific cosmetics 
+    # to it... 
+    system, node, release, version, machine, processor = uname() 
+    if machine == processor: 
+        processor = '' 
+    if aliased: 
+        system, release, version = system_alias(system, release, version) 
+ 
     if system == 'Darwin':
         # macOS (darwin kernel)
         macos_release = mac_ver()[0]
@@ -1222,47 +1222,47 @@ def platform(aliased=0, terse=0):
             system = 'macOS'
             release = macos_release
 
-    if system == 'Windows':
-        # MS platforms
-        rel, vers, csd, ptype = win32_ver(version)
-        if terse:
-            platform = _platform(system, release)
-        else:
-            platform = _platform(system, release, version, csd)
-
-    elif system in ('Linux',):
+    if system == 'Windows': 
+        # MS platforms 
+        rel, vers, csd, ptype = win32_ver(version) 
+        if terse: 
+            platform = _platform(system, release) 
+        else: 
+            platform = _platform(system, release, version, csd) 
+ 
+    elif system in ('Linux',): 
         # check for libc vs. glibc
         libcname, libcversion = libc_ver()
         platform = _platform(system, release, machine, processor,
                              'with',
                              libcname+libcversion)
-    elif system == 'Java':
-        # Java platforms
-        r, v, vminfo, (os_name, os_version, os_arch) = java_ver()
-        if terse or not os_name:
-            platform = _platform(system, release, version)
-        else:
-            platform = _platform(system, release, version,
-                                 'on',
-                                 os_name, os_version, os_arch)
-
-    else:
-        # Generic handler
-        if terse:
-            platform = _platform(system, release)
-        else:
-            bits, linkage = architecture(sys.executable)
-            platform = _platform(system, release, machine,
-                                 processor, bits, linkage)
-
-    _platform_cache[(aliased, terse)] = platform
-    return platform
-
-### Command line interface
-
-if __name__ == '__main__':
-    # Default is to print the aliased verbose platform string
-    terse = ('terse' in sys.argv or '--terse' in sys.argv)
-    aliased = (not 'nonaliased' in sys.argv and not '--nonaliased' in sys.argv)
-    print(platform(aliased, terse))
-    sys.exit(0)
+    elif system == 'Java': 
+        # Java platforms 
+        r, v, vminfo, (os_name, os_version, os_arch) = java_ver() 
+        if terse or not os_name: 
+            platform = _platform(system, release, version) 
+        else: 
+            platform = _platform(system, release, version, 
+                                 'on', 
+                                 os_name, os_version, os_arch) 
+ 
+    else: 
+        # Generic handler 
+        if terse: 
+            platform = _platform(system, release) 
+        else: 
+            bits, linkage = architecture(sys.executable) 
+            platform = _platform(system, release, machine, 
+                                 processor, bits, linkage) 
+ 
+    _platform_cache[(aliased, terse)] = platform 
+    return platform 
+ 
+### Command line interface 
+ 
+if __name__ == '__main__': 
+    # Default is to print the aliased verbose platform string 
+    terse = ('terse' in sys.argv or '--terse' in sys.argv) 
+    aliased = (not 'nonaliased' in sys.argv and not '--nonaliased' in sys.argv) 
+    print(platform(aliased, terse)) 
+    sys.exit(0)