En Tue, 03 Nov 2009 06:41:37 -0300, Henning Bredel <henning.bre...@gmx.de>
escribió:
I created a plugin mechanism for my application orientating
at the mechanism described by Martin Alchy in
http://martyalchin.com/2008/jan/10/simple-plugin-framework/
Now I'd like to call methods like `initialize(parent)' when
the user chooses to use a plugin. As described in the blog
mentioned above, I only have access to the general type called
`PluginMount' (holding all the actual plugin instances).
According to the article, PluginMount holds a list of all plugin *classes*
defined, not instances.
I tried to define "abstract" methods in PluginMount type
raising a `NotImplementedError' but it seems, there is no
late binding (similar to Java), so the right method would be
called. Only the message
TypeError: unbound method initialize() must be called
with GeoCache instance as first argument (got PluginMount
instance instead)
Python uses "late binding", even more than Java. A reference like
obj.foo(...) searches for "foo" along obj's attributes at runtime.
Please post some code showing your issue, and don't forget to tell us what
is your expected result, and what you actually get.
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
