Send data to asyncio coroutine

Javier jcarmena at
Sat Aug 1 18:07:48 CEST 2015

El martes, 21 de julio de 2015, 13:31:56 (UTC+2), Javier  escribió:
> Hello, I'm trying to understand and link asyncio with ordinary coroutines. Now I just want to understand how to do this on asyncio:
> def foo():
>     data = yield 8
>     print(data)
>     yield "bye"
> def bar():
>     f = foo()
>     n =
>     print(n)
>     message = f.send("hello")
>     print(message)
> What is the equivalent for coro.send("some data") in asyncio?
> coro.send on an asyncio coroutine throws AssertionError: yield from wasn't used with future.
> Thank you

Asyncio is a crazy headache! I realized that I can't use asyncio tcp servers with pickle! Asyncio is good as a concept but bad in real life. 

I think python's non blocking I/O is far from being something useful for developers till non-async code can invoke async code transparently. Duplicating all code/libs when you realize that something not fits asyncio is not a solution and even less a pythonic solution.

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