numpy.indices(dimensions, dtype=)

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

class numpy.ndindex(*shape)

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

class numpy.ndenumerate(arr)

flatiter.coords An N-dimensional tuple of current coordinates. Examples

ndenumerate.next()

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

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

numpy.diag_indices(n, ndim=2)