def tzname(self, dt):
        try:
            return force_text(time.tzname[self._isdst(dt)],
                                 DEFAULT_LOCALE_ENCODING)
        except __HOLE__:
            return None
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/utils/tzinfo.py/LocalTimezone.tzname