[Geany-devel] changes to the plugin interface

Lex Trotman elextr at xxxxx
Sun Jan 30 23:49:40 UTC 2011

On 31 January 2011 10:16,  <joshua.rh at comcast.net> wrote:
> Hello,
>           I'm not sure how high this is on the list of things to do, but I'd
> like to work on it; so I'll make sure I'm headed in the right direction
> before continuing.  I'd like the plugin interface to support python.  After
> some time on irc it seems two of the best solutions would be 1) re-writing
> the plugin interface to use gobject, or somehow refractoring the interface
> to do use gobject.  This would allow us to support the languages gtk+ does,
> but might have performance and maintainability issues.  The second (2) would
> be weaving python in using the Python/C API.  This could provide more speed,
> but would only support python.  Is it ok to only support python?  Or would
> it be better to use gobject?  Or is there a better solution?  Thanks,
> Josh

Hi Josh,

I assume by "support" you mean be able to write plugins in Python?
(ignore everything else if this fundamental assumption is wrong :-)

My suggestion would be to extend (in a backward compatible way) the
plugin API to allow plugins to have child plugins.  The child plugin
appears to the user as if it is a first class plugin, but it is loaded
and accessed only through its parent plugin.  The parent plugin would
of course have the Python interpretor embedded in it and would expose
the rest of the interface to Python and handle passing on callbacks.

This doesn't require changes such as GTKification to the current
plugin interface that would invalidate all current plugins.

This approach also has the advantage that it is actually independent
of Python and someone could write a plugin to allow use of any other
language and would allow to have both Python 2 and Python 3 versions
so getting over that looming issue.

Otherwise I would suggest a separate "python-plugins.c" file in core
that finds loads and makes available the Python plugins embeds the
interpretor and exposes selected Geany functions and structures to

Finally can I please remind all community members to keep discussions
on the ML, IRC excludes people in other time zones from participating.


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