Python asyncio_ioloop examples still use ZMQEventLoop

[jwiede]

Fix to pyzmq (zeromq/pyzmq#1021), added to pyzmq master in 2017, removed need for custom ZMQEventLoop in order to support use of alternative (uvloop, etc) coroutine engines. However, Zguide examples (under examples/Python/asyncio_ioloop, see patho{pub,sub}.py for two such cases) are still using outdated ZMQEventLoop-based approach, which also results in examples being more complex than needed (decorators + non-async-based coroutines, etc.).

Please use current pyzmq asyncio example code instead in Zguide.

Also filed as pyzmq issue in zeromq/pyzmq#1352 -- it wasn't clear who's actually responsible for Python examples in Zguide, and maintains their parity with pyzmq code examples.

[sappo]

Hi @jwiede,
There is no maintainer for those examples. If you can fix them please update them and open a PR. Thanks :)

[jwiede]

(peril-sensitive sunglasses go black)

Heya @sappo, this is one of those "you touch, you own" situations, and you're trying to trick me into touching it, aren't you? (g)

Once I get a chance, I will do so. Not a code contributor (yet), so need to understand the process.