39 lines
963 B
Python
39 lines
963 B
Python
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"""
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Asynchronous examples using `asyncio`, `async` and `await` on `python>=3.7`.
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"""
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import asyncio
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from tqdm.asyncio import tqdm, trange
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def count(start=0, step=1):
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i = start
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while True:
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new_start = yield i
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if new_start is None:
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i += step
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else:
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i = new_start
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async def main():
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N = int(1e6)
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async for row in tqdm(trange(N, desc="inner"), desc="outer"):
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if row >= N:
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break
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with tqdm(count(), desc="coroutine", total=N + 2) as pbar:
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async for row in pbar:
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if row == N:
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pbar.send(-10)
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elif row < 0:
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assert row == -9
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break
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# should be ~1sec rather than ~50s due to async scheduling
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for i in tqdm.as_completed([asyncio.sleep(0.01 * i)
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for i in range(100, 0, -1)], desc="as_completed"):
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await i
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if __name__ == "__main__":
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asyncio.run(main())
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