#16 Cannot inherit from another plugin

[Chris Warrick]

Yapsy seems to ignore plugins that inherit from other plugins. For example, this:

class SlimishTemplates(JinjaTemplates):
    name = "slimish"
    …further changes here…

basically gets getPluginByName('slimish', 'TemplateSystem') to return JinjaTemplates instead. As a workaround, I used:

class SlimishTemplates(TemplateSystem):
    name = "slimish"
    …further changes here…
SlimishTemplates.foo = JinjaTemplates.foo
…etc…

but that’s hacky. (this is an unofficial plugin for Nikola.)

[Thibauld Nion]

If I understand your problem correctly you hit a known limitation of yapsy described there along with possible solutions/workarounds:

http://yapsy.sourceforge.net/Advices.html#id3

As far as I can tell correcting this would mean changing significantly the way plugins are defined for yapsy and possibly breaking current uses of it, so it's not planned for any upcoming release (it may be only for a backward incompatibile rework of yapsy).

Please tell me if you think your problem is different, as I may have misunderstood.

[Chris Warrick]

I’m not sure. Although I fixed the problem by doing class SlimishTemplates(JinjaTemplates, TemplateSystem).

[Thibauld Nion]

The underlying problem (plugin category definition by inheritance) may be solved in a major release with the appropriate refactoring, but nor in a minor release.

[Thibauld Nion]

See also a related patch: [patches:#3]