How to Get Instance of a Plugin？

[jsky]

How to Get Instance of a Plugin Using Calibre's Plugin Framework？
Is there a method like Source.get_plugin_by_name() to get a specific plugin's instance by its name (although I know it does not exist)?

[jsky]

Because I want to call plugins written by other authors in the plugin I am editing.

[kovidgoyal]

Look at the functions in

calibre.customize.ui

they give you access to all types of calibre plugins.

[jsky]

Originally Posted by kovidgoyal

Look at the functions in

calibre.customize.ui

they give you access to all types of calibre plugins.

Thank you！Calibre MASTER

and still a little problem --

I am writing a InterfaceAction plugin, in which I want to call a Source plugin function.
Now i have the source plugin instance

from calibre.customize.ui import find_plugin
plugin = find_plugin("plugin_name")

But the function I want to Call is

    def identify(
            self,
            log,
            result_queue,
            abort,
            title=None,
            authors=None,  # {{{
            identifiers={},
            timeout=30)

However, I'm not sure how to pass the "log" parameter, as it seems like it's coming from outside the function. How can I pass this parameter correctly?

[jsky]

Could this method cause initialization timing issues when one plugin depends on another?

[kovidgoyal]

Dont call other plugins in your plugins initialize method and you wont have initialization issues. As for parameters to pass to identify() looka t how calibre itself calls the plugin identify methods, in sources/identify.py