itertools.chain(*iterables) Make an iterator that returns elements from the first iterable until it is exhausted, then proceeds

itertools.compress(data, selectors) Make an iterator that filters elements from data returning only those that have

itertools.zip_longest(*iterables, fillvalue=None) Make an iterator that aggregates elements from each of the iterables. If the

operator.iadd(a, b) operator.__iadd__(a, b) a = iadd(a, b) is equivalent to a += b.

itertools.tee(iterable, n=2) Return n independent iterators from a single iterable. Roughly equivalent to:

operator.__ifloordiv__(a, b) a = ifloordiv(a, b) is equivalent to a //= b.

partial.keywords The keyword arguments that will be supplied when the partial object is called.

operator.ixor(a, b) operator.__ixor__(a, b) a = ixor(a, b) is equivalent to a ^= b.

operator.add(a, b) operator.__add__(a, b) Return a + b, for a and b numbers.

operator.gt(a, b) operator.__lt__(a, b) operator.__le__(a, b) operator