class numpy.ndindex(*shape)

numpy.indices(dimensions, dtype=)

Arrayterator.shape The shape of the array to be iterated over. For an example, see

class numpy.ndenumerate(arr)

numpy.tril_indices(n, k=0, m=None)

ndenumerate.next()

class numpy.lib.Arrayterator(var, buf_size=None)

numpy.tril_indices_from(arr, k=0)

numpy.fill_diagonal(a, val, wrap=False)

flatiter.next x.next() -> the next value, or raise StopIteration