137     def tzname(self, dt):  member in FixedOffset
242             def tzname(self, dt):  member in TestTZInfo.test_issue23600.UKSummerTime
2181             def tzname(self, dt):  member in TestDateTime.test_strftime_with_bad_tzname_replace.MyTzInfo
3708             def tzname(self, dt):    return dt and "real" or "none"  member in TZInfoBase.test_argument_passing.introspective
3771             def tzname(self, dt): return None  member in TZInfoBase.test_tzinfo_classes.C1
3782             def tzname(self, dt): return "aname"  member in TZInfoBase.test_tzinfo_classes.C3
3792             def tzname(self, dt): return 0  member in TZInfoBase.test_tzinfo_classes.C4
3951             def tzname(self, dt): return self.tz  member in TestTimeTZ.test_zones.Badtzname
5063     def tzname(self, dt):  member in USTimeZone
5484     def tzname(self, dt):  member in USTimeZone2
5568     def tzname(self, dt):  member in Europe_Vilnius_1941
5994     def tzname(self, dt):  member in ZoneInfo