Why does a^=b throw an error when a=a^b does not? Question: My class’ xor function is working as intended but when doing a^=b, I get ‘TypeError: unsupported operand type(s) for ^=: ‘NoneType’ and ‘Multiset.” Relevant code below: def __xor__(self,o): d=Multiset() #subclass of dict for x in self|o: #for each item in both multisets m=abs((self[x] if …
Is there a Python equivalent for C++ "multiset<int>"? Question: I am porting some C++ code to Python and one of the data structures is a multiset, but I am not sure how to model this in Python. Let ms be the C++ multiset<int> How ms is used (posting some examples) multiset<int>::iterator it = ms.find(x) ms.erase(it) …
Test if set is a subset, considering the number (multiplicity) of each element in the set Question: I know I can test if set1 is a subset of set2 with: {‘a’,’b’,’c’} <= {‘a’,’b’,’c’,’d’,’e’} # True But the following is also True: {‘a’,’a’,’b’,’c’} <= {‘a’,’b’,’c’,’d’,’e’} # True How do I have it consider the number of …
