$ python iterator_test.py 463 926 1389 1852 2315 2778 It’s ... but instead of terminating the function, it simply pauses execution until another value is required. Pretty neat.

With all this talk of callables, you also should consider what happens with generator functions. Python loves iteration and encourages you to use for loops wherever you can. In many cases, it's ...

When you call the Cython function in your Python code, send the entire NumPy array object as an argument for that function call. Perform all the iteration over the object in Cython .