(self, other)
return result
Add counts from two counters.

        >>> Counter('abbb') + Counter('bcc')
        Counter({'b': 4, 'c': 2, 'a': 1})
Add counts from two counters.
Add counts from two counters .
def __add__(self, other):
        '''Add counts from two counters.

        >>> Counter('abbb') + Counter('bcc')
        Counter({'b': 4, 'c': 2, 'a': 1})

        '''
        if not isinstance(other, Counter):
            return NotImplemented
        result = Counter()
        for elem, count in self.items():
            newcount = count + other[elem]
            if newcount > 0:
                result[elem] = newcount
        for elem, count in other.items():
            if elem not in self and count > 0:
                result[elem] = count
        return result
def __add__ ( self , other ) : if not isinstance ( other , Counter ) : return NotImplemented result = Counter ( ) for elem , count in self . items ( ) : newcount = count + other [ elem ] if newcount > 0 : result [ elem ] = newcount for elem , count in other . items ( ) : if elem not in self and count > 0 : result [ elem ] = count return result