- def __init__ (self, sons=[], active=None, *args, **kwds):
+ """a simple base class for plugins that contain/arrange a set of other plugins
+sons is expected to be a list of the contained plugins, and
+active_domid is the domid for the one son that should be displayed as active
+some subclasses of Composite, like e.g. Tabs, will not behave as expected
+if a valid active_domid is not provided
+"""
+
+ def __init__ (self, sons=None, active_domid=None, *args, **kwds):