Module indexing

Array indexing utility

This module provides a convenient method for constructing array indices algorithmically. It provides one importable object, index_expression.

For any index combination, including slicing and axis insertion, a[indices] is the same as a[index_expression[indices]] for any array {a}. However, index_expression[indices] can be used anywhere in Python code and returns a tuple of indexing objects that can be used in the construction of complex index expressions.

Sole restriction: Slices must be specified in the double-colon form, i.e. a[::] is allowed, whereas a[:] is not.