Deprecated Czech class was not backwards compatible by failing to pass **kwargs through to parent's __init__.
@@ -2862,7 +2862,7 @@ class Czech(Czechia):
def __init__(self, **kwargs):
warnings.warn("Czech is deprecated, use Czechia instead.",
DeprecationWarning)
- super(Czech, self).__init__()
+ super(Czech, self).__init__(**kwargs)
class Slovakia(HolidayBase):
