europython2017/coro.py at master · fpierfed/europython2017 · GitHub

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"""
Simple example of a generator function in pure Python.
"""


def myrange(n):
    assert n >= 0

    i = 0
    while i < n:
        yield i
        i += 1


if __name__ == '__main__':
    # for x in myrange(10):
    #     print(x)
    #
    # print(list(myrange(10)))

    # coro = myrange(10)
    # print(coro)
    # print(coro.send(None))
    # print(next(coro))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))
    # print(coro.send(None))

    coro = myrange(10)
    coro.send(None)

    while True:
        try:
            print(coro.send(None))
        except StopIteration:
            break