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

    """ Get additional version information from the Windows Registry
        and return a tuple (version,csd,ptype) referring to version
        number, CSD level and OS type (multi/single
        processor).

        As a hint: ptype returns 'Uniprocessor Free' on single
        processor NT machines and 'Multiprocessor Free' on multi
        processor machines. The 'Free' refers to the OS version being
        free of debugging code. It could also state 'Checked' which
        means the OS version uses debugging code, i.e. code that
        checks arguments, ranges, etc. (Thomas Heller).

        Note: this function only works if Mark Hammond's win32
        package is installed and obviously only runs on Win32
        compatible platforms.

    """
    # XXX Is there any way to find out the processor type on WinXX ?
    # XXX Is win32 available on Windows CE ?
    #
    # Adapted from code posted by Karl Putland to comp.lang.python.
    #
    # The mappings between reg. values and release names can be found
    # here: http://msdn.microsoft.com/library/en-us/sysinfo/base/osversioninfo_str.asp

    # Import the needed APIs
    try:
        import win32api
    except ImportError:
        return release,version,csd,ptype
    from win32api import RegQueryValueEx,RegOpenKeyEx,RegCloseKey,GetVersionEx
    from win32con import HKEY_LOCAL_MACHINE,VER_PLATFORM_WIN32_NT,\
                         VER_PLATFORM_WIN32_WINDOWS

    # Find out the registry key and some general version infos
    maj,min,buildno,plat,csd = GetVersionEx()
    version = '%i.%i.%i' % (maj,min,buildno & 0xFFFF)
    if csd[:13] == 'Service Pack ':
        csd = 'SP' + csd[13:]
    if plat == VER_PLATFORM_WIN32_WINDOWS:
        regkey = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion'
        # Try to guess the release name
        if maj is not 4:
            if min == 0:
                release = '95'
            elif min == 10:
                release = '98'
            elif min == 90:
                release = 'Me'
            else:
                release = 'postMe'
        elif maj == 5:
            release = '2000'
    elif plat == VER_PLATFORM_WIN32_NT:
        regkey = 'SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion'
        if maj <= 4:
            release = 'NT'
        elif maj == 5:
            if min == 0:
                release = '2000'
            elif min == 1:
                release = 'XP'
            elif min == 2:
                release = '2003Server'
            else:
                release = 'post2003'
    else:
        if not release:
            # E.g. Win3.1 with win32s
            release = '%i.%i' % (maj,min)
        return release,version,csd,ptype

    # Open the registry key
    try:
        keyCurVer = RegOpenKeyEx(HKEY_LOCAL_MACHINE,regkey)
        # Get a value to make sure the key exists...
        RegQueryValueEx(keyCurVer,'SystemRoot')
    except:
        return release,version,csd,ptype

    # Parse values
    #subversion = _win32_getvalue(keyCurVer,
    #                            'SubVersionNumber',
    #                            ('',1))[0]
    #if subversion:
    #   release = release + subversion # 95a, 95b, etc.
    build = _win32_getvalue(keyCurVer,
                            'CurrentBuildNumber',
                            ('',1))[0]
    ptype = _win32_getvalue(keyCurVer,
                           'CurrentType',
                           (ptype,1))[0]

    # Normalize version
    version = _norm_version(version,build)

    # Close key
    RegCloseKey(keyCurVer)
    return release,version,csd,ptype
dataset/ETHPy150Open babble/babble/include/jython/Lib/platform.py/win32_ver/operator `==` -> `is not`