[question] why you are using close and wait_close instead of just one method?

[vanyakosmos]

I don't understand the reasoning behind having two method. Can someone explain or at least point out where I can read about this design choice?
Why don't we have just one async method close which can be scheduled with asycnio.create_task or awaited in place if user whats to be sure that connections are closed?

[sbdchd]

This is probably due to close and wait_close being defined on asyncio.StreamWritier class

https://docs.python.org/3/library/asyncio-stream.html#asyncio.StreamWriter.close

.close() will close the connection eventually so you don't need to call wait_close unless you don't want to proceed until the connection is actually closed.

Also note that wait_close was a new addition to that class in Python 3.7

related: python/asyncio#466