platform.py 文件源码

def _parse_release_file(firstline):

    # Default to empty 'version' and 'id' strings.  Both defaults are used
    # when 'firstline' is empty.  'id' defaults to empty when an id can not
    # be deduced.
    version = ''
    id = ''

    # Parse the first line
    m = _lsb_release_version.match(firstline)
    if m is not None:
        # LSB format: "distro release x.x (codename)"
        return tuple(m.groups())

    # Pre-LSB format: "distro x.x (codename)"
    m = _release_version.match(firstline)
    if m is not None:
        return tuple(m.groups())

    # Unkown format... take the first two words
    l = string.split(string.strip(firstline))
    if l:
        version = l[0]
        if len(l) > 1:
            id = l[1]
    return '', version, id