#! /usr/bin/python3.8

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""" This module tries to retrieve as much platform-identifying data as

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possible. It makes this information available via function APIs.

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If called from the command line, it prints the platform

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information concatenated as single string to stdout. The output

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format is useable as part of a filename.

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"""

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# This module is maintained by Marc-Andre Lemburg <mal@egenix.com>.

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# If you find problems, please submit bug reports/patches via the

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# Python bug tracker (http://bugs.python.org) and assign them to "lemburg".

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#

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# Still needed:

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# * support for MS-DOS (PythonDX ?)

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# * support for Amiga and other still unsupported platforms running Python

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# * support for additional Linux distributions

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#

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# Many thanks to all those who helped adding platform-specific

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# checks (in no particular order):

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#

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# Charles G Waldman, David Arnold, Gordon McMillan, Ben Darnell,

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# Jeff Bauer, Cliff Crawford, Ivan Van Laningham, Josef

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# Betancourt, Randall Hopper, Karl Putland, John Farrell, Greg

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# Andruk, Just van Rossum, Thomas Heller, Mark R. Levinson, Mark

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# Hammond, Bill Tutt, Hans Nowak, Uwe Zessin (OpenVMS support),

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# Colin Kong, Trent Mick, Guido van Rossum, Anthony Baxter, Steve

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# Dower

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#

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# History:

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#

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# <see CVS and SVN checkin messages for history>

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#

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# 1.0.8 - changed Windows support to read version from kernel32.dll

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# 1.0.7 - added DEV_NULL

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# 1.0.6 - added linux_distribution()

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# 1.0.5 - fixed Java support to allow running the module on Jython

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# 1.0.4 - added IronPython support

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# 1.0.3 - added normalization of Windows system name

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# 1.0.2 - added more Windows support

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# 1.0.1 - reformatted to make doc.py happy

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# 1.0.0 - reformatted a bit and checked into Python CVS

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# 0.8.0 - added sys.version parser and various new access

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# APIs (python_version(), python_compiler(), etc.)

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# 0.7.2 - fixed architecture() to use sizeof(pointer) where available

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# 0.7.1 - added support for Caldera OpenLinux

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# 0.7.0 - some fixes for WinCE; untabified the source file

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# 0.6.2 - support for OpenVMS - requires version 1.5.2-V006 or higher and

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# vms_lib.getsyi() configured

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# 0.6.1 - added code to prevent 'uname -p' on platforms which are

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# known not to support it

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# 0.6.0 - fixed win32_ver() to hopefully work on Win95,98,NT and Win2k;

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# did some cleanup of the interfaces - some APIs have changed

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# 0.5.5 - fixed another type in the MacOS code... should have

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# used more coffee today ;-)

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# 0.5.4 - fixed a few typos in the MacOS code

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# 0.5.3 - added experimental MacOS support; added better popen()

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# workarounds in _syscmd_ver() -- still not 100% elegant

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# though

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# 0.5.2 - fixed uname() to return '' instead of 'unknown' in all

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# return values (the system uname command tends to return

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# 'unknown' instead of just leaving the field empty)

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# 0.5.1 - included code for slackware dist; added exception handlers

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# to cover up situations where platforms don't have os.popen

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# (e.g. Mac) or fail on socket.gethostname(); fixed libc

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# detection RE

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# 0.5.0 - changed the API names referring to system commands to *syscmd*;

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# added java_ver(); made syscmd_ver() a private

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# API (was system_ver() in previous versions) -- use uname()

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# instead; extended the win32_ver() to also return processor

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# type information

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# 0.4.0 - added win32_ver() and modified the platform() output for WinXX

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# 0.3.4 - fixed a bug in _follow_symlinks()

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# 0.3.3 - fixed popen() and "file" command invocation bugs

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# 0.3.2 - added architecture() API and support for it in platform()

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# 0.3.1 - fixed syscmd_ver() RE to support Windows NT

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# 0.3.0 - added system alias support

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# 0.2.3 - removed 'wince' again... oh well.

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# 0.2.2 - added 'wince' to syscmd_ver() supported platforms

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# 0.2.1 - added cache logic and changed the platform string format

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# 0.2.0 - changed the API to use functions instead of module globals

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# since some action take too long to be run on module import

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# 0.1.0 - first release

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#

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# You can always get the latest version of this module at:

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#

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# http://www.egenix.com/files/python/platform.py

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#

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# If that URL should fail, try contacting the author.

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__copyright__ = """

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Copyright (c) 1999-2000, Marc-Andre Lemburg; mailto:mal@lemburg.com

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Copyright (c) 2000-2010, eGenix.com Software GmbH; mailto:info@egenix.com

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Permission to use, copy, modify, and distribute this software and its

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documentation for any purpose and without fee or royalty is hereby granted,

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provided that the above copyright notice appear in all copies and that

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both that copyright notice and this permission notice appear in

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supporting documentation or portions thereof, including modifications,

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that you make.

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EGENIX.COM SOFTWARE GMBH DISCLAIMS ALL WARRANTIES WITH REGARD TO

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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,

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INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING

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FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,

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NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION

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WITH THE USE OR PERFORMANCE OF THIS SOFTWARE !

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"""

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__version__ = '1.0.8'

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import collections

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import os

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import re

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import sys

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### Globals & Constants

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# Helper for comparing two version number strings.

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# Based on the description of the PHP's version_compare():

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# http://php.net/manual/en/function.version-compare.php

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_ver_stages = {

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# any string not found in this dict, will get 0 assigned

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'dev': 10,

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'alpha': 20, 'a': 20,

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'beta': 30, 'b': 30,

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'c': 40,

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'RC': 50, 'rc': 50,

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# number, will get 100 assigned

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'pl': 200, 'p': 200,

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}

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_component_re = re.compile(r'([0-9]+|[._+-])')

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def _comparable_version(version):

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result = []

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for v in _component_re.split(version):

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if v not in '._+-':

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try:

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v = int(v, 10)

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t = 100

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except ValueError:

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t = _ver_stages.get(v, 0)

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result.extend((t, v))

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return result

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### Platform specific APIs

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_libc_search = re.compile(b'(__libc_init)'

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b'|'

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b'(GLIBC_([0-9.]+))'

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b'|'

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br'(libc(_\w+)?\.so(?:\.(\d[0-9.]*))?)', re.ASCII)

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def libc_ver(executable=None, lib='', version='', chunksize=16384):

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""" Tries to determine the libc version that the file executable

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(which defaults to the Python interpreter) is linked against.

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Returns a tuple of strings (lib,version) which default to the

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given parameters in case the lookup fails.

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Note that the function has intimate knowledge of how different

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libc versions add symbols to the executable and thus is probably

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only useable for executables compiled using gcc.

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The file is read and scanned in chunks of chunksize bytes.

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"""

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if executable is None:

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try:

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ver = os.confstr('CS_GNU_LIBC_VERSION')

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# parse 'glibc 2.28' as ('glibc', '2.28')

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parts = ver.split(maxsplit=1)

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if len(parts) == 2:

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return tuple(parts)

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except (AttributeError, ValueError, OSError):

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# os.confstr() or CS_GNU_LIBC_VERSION value not available

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pass

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executable = sys.executable

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V = _comparable_version

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if hasattr(os.path, 'realpath'):

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# Python 2.2 introduced os.path.realpath(); it is used

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# here to work around problems with Cygwin not being

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# able to open symlinks for reading

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executable = os.path.realpath(executable)

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with open(executable, 'rb') as f:

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binary = f.read(chunksize)

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pos = 0

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while pos < len(binary):

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if b'libc' in binary or b'GLIBC' in binary:

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m = _libc_search.search(binary, pos)

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else:

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m = None

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if not m or m.end() == len(binary):

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chunk = f.read(chunksize)

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if chunk:

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binary = binary[max(pos, len(binary) - 1000):] + chunk

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pos = 0

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continue

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if not m:

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break

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libcinit, glibc, glibcversion, so, threads, soversion = [

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s.decode('latin1') if s is not None else s

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for s in m.groups()]

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if libcinit and not lib:

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lib = 'libc'

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elif glibc:

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if lib != 'glibc':

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lib = 'glibc'

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version = glibcversion

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elif V(glibcversion) > V(version):

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version = glibcversion

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elif so:

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if lib != 'glibc':

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lib = 'libc'

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if soversion and (not version or V(soversion) > V(version)):

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version = soversion

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if threads and version[-len(threads):] != threads:

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version = version + threads

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pos = m.end()

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return lib, version

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def _norm_version(version, build=''):

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""" Normalize the version and build strings and return a single

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version string using the format major.minor.build (or patchlevel).

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"""

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l = version.split('.')

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if build:

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l.append(build)

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try:

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strings = list(map(str, map(int, l)))

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except ValueError:

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strings = l

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version = '.'.join(strings[:3])

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return version

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_ver_output = re.compile(r'(?:([\w ]+) ([\w.]+) '

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r'.*'

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r'\[.* ([\d.]+)\])')

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# Examples of VER command output:

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#

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# Windows 2000: Microsoft Windows 2000 [Version 5.00.2195]

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# Windows XP: Microsoft Windows XP [Version 5.1.2600]

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# Windows Vista: Microsoft Windows [Version 6.0.6002]

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#

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# Note that the "Version" string gets localized on different

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# Windows versions.

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def _syscmd_ver(system='', release='', version='',

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supported_platforms=('win32', 'win16', 'dos')):

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""" Tries to figure out the OS version used and returns

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a tuple (system, release, version).

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It uses the "ver" shell command for this which is known

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to exists on Windows, DOS. XXX Others too ?

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In case this fails, the given parameters are used as

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defaults.

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"""

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if sys.platform not in supported_platforms:

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return system, release, version

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# Try some common cmd strings

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import subprocess

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for cmd in ('ver', 'command /c ver', 'cmd /c ver'):

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try:

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info = subprocess.check_output(cmd,

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stderr=subprocess.DEVNULL,

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text=True,

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shell=True)

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except (OSError, subprocess.CalledProcessError) as why:

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#print('Command %s failed: %s' % (cmd, why))

[283] Fix | Delete

continue

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else:

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break

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else:

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return system, release, version

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[289] Fix | Delete

# Parse the output

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info = info.strip()

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m = _ver_output.match(info)

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if m is not None:

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system, release, version = m.groups()

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# Strip trailing dots from version and release

[295] Fix | Delete

if release[-1] == '.':

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release = release[:-1]

[297] Fix | Delete

if version[-1] == '.':

[298] Fix | Delete

version = version[:-1]

[299] Fix | Delete

# Normalize the version and build strings (eliminating additional

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# zeros)

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version = _norm_version(version)

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return system, release, version

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[304] Fix | Delete

_WIN32_CLIENT_RELEASES = {

[305] Fix | Delete

(5, 0): "2000",

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(5, 1): "XP",

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# Strictly, 5.2 client is XP 64-bit, but platform.py historically

[308] Fix | Delete

# has always called it 2003 Server

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(5, 2): "2003Server",

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(5, None): "post2003",

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[312] Fix | Delete

(6, 0): "Vista",

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(6, 1): "7",

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(6, 2): "8",

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(6, 3): "8.1",

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(6, None): "post8.1",

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[318] Fix | Delete

(10, 0): "10",

[319] Fix | Delete

(10, None): "post10",

[320] Fix | Delete

}

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# Server release name lookup will default to client names if necessary

[323] Fix | Delete

_WIN32_SERVER_RELEASES = {

[324] Fix | Delete

(5, 2): "2003Server",

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[326] Fix | Delete

(6, 0): "2008Server",

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(6, 1): "2008ServerR2",

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(6, 2): "2012Server",

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(6, 3): "2012ServerR2",

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(6, None): "post2012ServerR2",

[331] Fix | Delete

}

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[333] Fix | Delete

def win32_is_iot():

[334] Fix | Delete

return win32_edition() in ('IoTUAP', 'NanoServer', 'WindowsCoreHeadless', 'IoTEdgeOS')

[335] Fix | Delete

[336] Fix | Delete

def win32_edition():

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try:

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try:

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import winreg

[340] Fix | Delete

except ImportError:

[341] Fix | Delete

import _winreg as winreg

[342] Fix | Delete

except ImportError:

[343] Fix | Delete

pass

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else:

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try:

[346] Fix | Delete

cvkey = r'SOFTWARE\Microsoft\Windows NT\CurrentVersion'

[347] Fix | Delete

with winreg.OpenKeyEx(winreg.HKEY_LOCAL_MACHINE, cvkey) as key:

[348] Fix | Delete

return winreg.QueryValueEx(key, 'EditionId')[0]

[349] Fix | Delete

except OSError:

[350] Fix | Delete

pass

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[352] Fix | Delete

return None

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[354] Fix | Delete

def win32_ver(release='', version='', csd='', ptype=''):

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try:

[356] Fix | Delete

from sys import getwindowsversion

[357] Fix | Delete

except ImportError:

[358] Fix | Delete

return release, version, csd, ptype

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winver = getwindowsversion()

[361] Fix | Delete

try:

[362] Fix | Delete

major, minor, build = map(int, _syscmd_ver()[2].split('.'))

[363] Fix | Delete

except ValueError:

[364] Fix | Delete

major, minor, build = winver.platform_version or winver[:3]

[365] Fix | Delete

version = '{0}.{1}.{2}'.format(major, minor, build)

[366] Fix | Delete

[367] Fix | Delete

release = (_WIN32_CLIENT_RELEASES.get((major, minor)) or

[368] Fix | Delete

_WIN32_CLIENT_RELEASES.get((major, None)) or

[369] Fix | Delete

release)

[370] Fix | Delete

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# getwindowsversion() reflect the compatibility mode Python is

[372] Fix | Delete

# running under, and so the service pack value is only going to be

[373] Fix | Delete

# valid if the versions match.

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if winver[:2] == (major, minor):

[375] Fix | Delete

try:

[376] Fix | Delete

csd = 'SP{}'.format(winver.service_pack_major)

[377] Fix | Delete

except AttributeError:

[378] Fix | Delete

if csd[:13] == 'Service Pack ':

[379] Fix | Delete

csd = 'SP' + csd[13:]

[380] Fix | Delete

[381] Fix | Delete

# VER_NT_SERVER = 3

[382] Fix | Delete

if getattr(winver, 'product_type', None) == 3:

[383] Fix | Delete

release = (_WIN32_SERVER_RELEASES.get((major, minor)) or

[384] Fix | Delete

_WIN32_SERVER_RELEASES.get((major, None)) or

[385] Fix | Delete

release)

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try:

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try:

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import winreg

[390] Fix | Delete

except ImportError:

[391] Fix | Delete

import _winreg as winreg

[392] Fix | Delete

except ImportError:

[393] Fix | Delete

pass

[394] Fix | Delete

else:

[395] Fix | Delete

try:

[396] Fix | Delete

cvkey = r'SOFTWARE\Microsoft\Windows NT\CurrentVersion'

[397] Fix | Delete

with winreg.OpenKeyEx(winreg.HKEY_LOCAL_MACHINE, cvkey) as key:

[398] Fix | Delete

ptype = winreg.QueryValueEx(key, 'CurrentType')[0]

[399] Fix | Delete

except OSError:

[400] Fix | Delete

pass

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return release, version, csd, ptype

[403] Fix | Delete

[404] Fix | Delete

[405] Fix | Delete

def _mac_ver_xml():

[406] Fix | Delete

fn = '/System/Library/CoreServices/SystemVersion.plist'

[407] Fix | Delete

if not os.path.exists(fn):

[408] Fix | Delete

return None

[409] Fix | Delete

[410] Fix | Delete

try:

[411] Fix | Delete

import plistlib

[412] Fix | Delete

except ImportError:

[413] Fix | Delete

return None

[414] Fix | Delete

[415] Fix | Delete

with open(fn, 'rb') as f:

[416] Fix | Delete

pl = plistlib.load(f)

[417] Fix | Delete

release = pl['ProductVersion']

[418] Fix | Delete

versioninfo = ('', '', '')

[419] Fix | Delete

machine = os.uname().machine

[420] Fix | Delete

if machine in ('ppc', 'Power Macintosh'):

[421] Fix | Delete

# Canonical name

[422] Fix | Delete

machine = 'PowerPC'

[423] Fix | Delete

[424] Fix | Delete

return release, versioninfo, machine

[425] Fix | Delete

[426] Fix | Delete

[427] Fix | Delete

def mac_ver(release='', versioninfo=('', '', ''), machine=''):

[428] Fix | Delete

[429] Fix | Delete

""" Get macOS version information and return it as tuple (release,

[430] Fix | Delete

versioninfo, machine) with versioninfo being a tuple (version,

[431] Fix | Delete

dev_stage, non_release_version).

[432] Fix | Delete

[433] Fix | Delete

Entries which cannot be determined are set to the parameter values

[434] Fix | Delete

which default to ''. All tuple entries are strings.

[435] Fix | Delete

"""

[436] Fix | Delete

[437] Fix | Delete

# First try reading the information from an XML file which should

[438] Fix | Delete

# always be present

[439] Fix | Delete

info = _mac_ver_xml()

[440] Fix | Delete

if info is not None:

[441] Fix | Delete

return info

[442] Fix | Delete

[443] Fix | Delete

# If that also doesn't work return the default values

[444] Fix | Delete

return release, versioninfo, machine

[445] Fix | Delete

[446] Fix | Delete

def _java_getprop(name, default):

[447] Fix | Delete

[448] Fix | Delete

from java.lang import System

[449] Fix | Delete

try:

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value = System.getProperty(name)

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if value is None:

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return default

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return value

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except AttributeError:

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return default

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def java_ver(release='', vendor='', vminfo=('', '', ''), osinfo=('', '', '')):

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""" Version interface for Jython.

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Returns a tuple (release, vendor, vminfo, osinfo) with vminfo being

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a tuple (vm_name, vm_release, vm_vendor) and osinfo being a

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tuple (os_name, os_version, os_arch).

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Values which cannot be determined are set to the defaults

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given as parameters (which all default to '').

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"""

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# Import the needed APIs

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try:

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import java.lang

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except ImportError:

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return release, vendor, vminfo, osinfo

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vendor = _java_getprop('java.vendor', vendor)

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release = _java_getprop('java.version', release)

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vm_name, vm_release, vm_vendor = vminfo

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vm_name = _java_getprop('java.vm.name', vm_name)

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vm_vendor = _java_getprop('java.vm.vendor', vm_vendor)

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vm_release = _java_getprop('java.vm.version', vm_release)

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vminfo = vm_name, vm_release, vm_vendor

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os_name, os_version, os_arch = osinfo

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os_arch = _java_getprop('java.os.arch', os_arch)

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os_name = _java_getprop('java.os.name', os_name)

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os_version = _java_getprop('java.os.version', os_version)

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osinfo = os_name, os_version, os_arch

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return release, vendor, vminfo, osinfo

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### System name aliasing

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def system_alias(system, release, version):

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""" Returns (system, release, version) aliased to common

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marketing names used for some systems.

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It also does some reordering of the information in some cases

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where it would otherwise cause confusion.

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