X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=unfold%2Fcomposite.py;h=f3d42fc4de125e82d05c5ec51c9d0d7a3b9187b3;hb=f19bceaa080ab47bae751cd0597a9fb32d1b6b4f;hp=9007cdc625d1d8e471c0fb94809f872de4f40bf4;hpb=544e6ac78d490061f848f98adb0e08574b474371;p=myslice.git

diff --git a/unfold/composite.py b/unfold/composite.py
index 9007cdc6..f3d42fc4 100644
--- a/unfold/composite.py
+++ b/unfold/composite.py
@@ -1,16 +1,17 @@
 from unfold.plugin import Plugin
 
-# this is 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
-
 class Composite (Plugin):
 
-    def __init__ (self, sons=[], active_domid=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):
         Plugin.__init__ (self, *args, **kwds)
-        self.sons=sons
+        self.sons= sons if sons else []
         self.active_domid=active_domid
         # make sure this is valid, unset otherwise, so we always have exactly one active
         self.check_active_domid()