Fwd: Basic asyncio usage

[Piotr Husiatyński]

Hi,
I have posted the same question to python-tutor list *, but I'm trying
my luck here as advised.

I'm trying to get more familiar with asyncio library. Using python
3.4, I wrote simple echo server (see attachement for the code). I know
that instead of using bare bone send/recv I could use some of the
helper functions, but I want to start with the basics.

Using attached code, I can connect from multiple sources, but echo
won't work for all clients. Also, please look at the `sendall` mehtod
- I have to manually remove write callback, otherwise it will be
called all the time. Any tips on solving this problem?

* https://mail.python.org/pipermail/tutor/2014-March/100679.html
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