timezone.py 文件源码

def _get_timezone_name(timezone):
    """
    Returns the name of ``timezone``.
    """
    try:
        # for pytz timezones
        return timezone.zone
    except AttributeError:
        # for regular tzinfo objects
        return timezone.tzname(None)

# Timezone selection functions.

# These functions don't change os.environ['TZ'] and call time.tzset()
# because it isn't thread safe.