def __sub__(self, other):
        if not isinstance(other, Counter):
            return NotImplemented
        result = Counter()
        for elem in set(self) | set(other):
            newcount = self[elem] - other[elem]
            if newcount > 0:
                result[elem] = newcount
        return result
Return the application's base URI (no PATH_INFO or QUERY_STRING)
dataset/ETHPy150Open dbcli/pgcli/pgcli/packages/counter.py/Counter.__sub__--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/wsgiref/util.py/application_uri