added function that returns an array listing the events

[leirons]

In node js we can emitter.eventNames() that returns array of events, so i added the function that returns name of events

[jfhbrook]

This is a cool feature and I'd be glad to roll it into the next release! Do you mind writing a test? Adding a really simple one that adds some named events and then asserts the expected result should be plenty. I think I spotted a bug in the current implementation, but a test will tell us for sure.

Thanks!

[jfhbrook]

This slice is dropping the first key:

❯ python
Python 3.8.8 (default, Apr 13 2021, 19:58:26) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> xs = [1, 2, 3]
>>> xs[1:]
[2, 3]
>>> 

I don't think this is what we want. I think you were trying to clone the list:

>>> xs = [1, 2, 3]
>>> xs[:]
[1, 2, 3]

The motivation for doing this is so that self._events may mutate before you've completed iterating over its keys - the list gets that out of the way for us. Good thinking! But I think that's already handled by converting it to a list:

>>> xs is xs
True
>>> xs is xs[:]
False
>>> xs is list(xs)
False

In other words, try the following:

def event_names(self):
    return list(self._events.keys())

[leirons]

I wanted to drop the first key because in the first place always new_listener, and it's not a really listener, or am i wrong?

ok, l will do it

[jfhbrook-at-work]

What's the behavior in node.js? do they filter out internal events there? I think the easiest thing will be to copy that interface.

[jfhbrook]

I have this some light rework and pushed it as #99. I intend to publish this in release 9. Thanks!