Separating pubsub?

[Bill Baxter]

Hi all,
The wx.lib.pubsub module looks to be completely independent of
wxWidgets/wxPython.  It seems to be a useful library in and of its own
right.  What would you think of breaking it out into a separately
downloadable entity?

I'm thinking of something along the lines of zope.interface.  It's
part of zope, but you can download it by itself and use it apart from
any of the rest of zope.

It could still be in the wx namespace, but say, wx.pubsub instead of
wx.lib.pubsub.

I was thinking it might be nice to use both in and out of wxPython,
but pulling in a dependency on wxPython just for one file with 800
lines of pure python code ain't going to fly.

--bb