(self, key)
return 0
The count of elements not in the Counter is zero.
The count of elements not in the Counter is zero.
The count of elements not in the Counter is zero .
def __missing__(self, key):
        'The count of elements not in the Counter is zero.'
        # Needed so that self[missing_item] does not raise KeyError
        return 0
def __missing__ ( self , key ) : # Needed so that self[missing_item] does not raise KeyError return 0