Invalid number of arguments to `_on_open` and `_on_message` callbacks

[squgeim]

When trying to implement a simple script following the given example the following errors are shown:

error from callback <bound method Connection._on_open of <Connection(PysherEventLoop, started daemon 123145544798208)>>: _on_open() takes 1 positional argument but 2 were given
error from callback <bound method Connection._on_message of <Connection(PysherEventLoop, started daemon 123145544798208)>>: _on_message() takes 2 positional arguments but 3 were given
Connection: Connection closed

When checking out the documentation for websocket-client, the implementation given in its example does not seem to match the implementation in connection.py.

Pysher version: 1.0.1 (installed with pip)
websocket-client version: 0.52.0
Python version: 3.7.0
OS: Mac OS X (Mojave)

[craigjmidwinter]

It looks like this has regressed. 1.0.1 works, but 1.0.4 gives errors:

2018-12-01 18:11:37 ERROR (PysherEventLoop) [websocket] error from callback <bound method Connection._on_open of <Connection(PysherEventLoop, started daemon 139784776562432)>>: _on_open() takes 1 positional argument but 2 were given
2018-12-01 18:11:37 ERROR (PysherEventLoop) [websocket] error from callback <bound method Connection._on_message of <Connection(PysherEventLoop, started daemon 139784776562432)>>: _on_message() takes 2 positional arguments but 3 were given

[deepbrook]

Is your websocket - client up to date,
@craigjmidwinter?
I'm migrating to another websocket library, but progress is achingly slow, due to very little available time on my end.