$ python iterator_test.py 463 926 1389 1852 2315 2778 It’s ... Wow, that’s a lot shorter than our iterator example. The main thing to note is a new keyword: yield.

Here’s an example of a Cython function declaration that takes in a two-dimensional NumPy array: def compute(int[:, ::1] array_1): In Cython’s “pure Python” syntax, you’d use this annotation: ...