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Your best companion in learning asyncio is asyncio.sleep
. It works like time.sleep
making the calling code wait the given number of seconds. This is the simplest example of an IO-bound task because while sleeping, your code literally does nothing but wait. And unlike time.sleep
, asyncio.sleep
is async. That means, while the calling task waits for it to finish, another task can be executed.
import asyncio
import time
async def main():
start = time.time()
await asyncio.sleep(2)
return int(time.time() - start)
asyncio.run(main())
# 2
You can't yet see how the code switches to another task while waiting because we have only one task. But bear with me, in the next posts we'll get to it.
BY Python etc
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