def __getitem__(self, key):
return Counter.__getitem__(self, key)
def __getitem__(self, value):
if value in self:
return Counter.__getitem__(self, value)
else:
raise KeyError(value)
def __getitem__(self, key):
return Counter.__getitem__(self, key) / self._total()
def __call__(self, value):
return Counter.__getitem__(self, value)
def _total(self):
total = 0
for key in self:
total += Counter.__getitem__(self, key)
return total
