iterate through list copy of dict.items() for python3
@@ -2252,7 +2252,7 @@ class SouthAfrica(HolidayBase):
self[date(year, 12, 25)] = "Christmas Day"
self[date(year, 12, 26)] = "Day of Goodwill"
- for k, v in self.items():
+ for k, v in list(self.items()):
if self.observed and k.weekday() == 6:
self[k + rd(days=1)] = v + " (Observed)"
