Version:
https://github.com/PureMVC/puremvc-python-standard-framework
commit 942bec84220fbc601e8064104199881271ad54c9

Problem:
The constructor method puremvc.patterns.command.MacroCommand.__init__() does not call
super(MacroCommand,self).__init__().

This causes puremvc.patterns.observer.Notifier.__init__() not to be executed. As a consequence a new MacroCommand lacks the attribute "facade". This causes AttributeError exceptions later on, if one uses the method "sendNotification".

Here is a patch to fix this issue: https://github.com/akruis/puremvc-python-standard-framework/commit/6cc93cf4bf86995336198782f9ba73779c3c4434

Just for the records: if anyone needs it, an implementation of the changes proposed in this discussion is available from
https://github.com/akruis/puremvc-python-standard-framework/commit/9c94474f5fb57e30a052efab3ad8ef64bbbff7dc