The arrays must have the same shape or be broadcastable ... Initialization: Use np.array() to create arrays from Python lists. For special arrays, like ones or zeros, use np.ones(), np.zeros().

Learn how Python's ... For instance, a list can’t be a key, because elements can be added to or removed from a list. Likewise, a dictionary itself can’t be a key for the same reason.

The blist uses a flexible, hybrid array/tree structure and only needs to move ... It's iterable and indexable like a Python list, but to modify a sortedlist the same methods you would use on a Python ...