platform.py 文件源码

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