Description
The documentation states:
Note that
txaiodoesn’t do anything special with regards to callback or errback chaining – it is highly recommended that you always return the incoming argument unmodified in your callback/errback so that Twisted and asyncio behave the same.
But even for asyncio there is a slightly hacky call-chaining implemented in txaio/aio.py. And this seems to be used extensively, e.g. in autobahn/wamp/protocol.py.
Please either update the documentation, rendering this functionality "official and supported" or remove the hack from aio.py (which I expect to cause quite some test failures in dependent libraries). If the decision is to remove the hack, please consider providing a replacement for this idiom used in crossbario/autobahn-python:
d = txaio.as_future(func1)
txaio.add_callbacks(d, txaio.as_future(func2), None)
txaio.add_callbacks(d, txaio.as_future(func3), None)