(self)
Get a list of "newly performing" users - defined as those who are "performing" this month
        after not performing last month.
Get a list of "newly performing" users - defined as those who are "performing" this month
        after not performing last month.
Get a list of newly performing users - defined as those who are performing this month after not performing last month .
def get_newly_performing(self):
        """
        Get a list of "newly performing" users - defined as those who are "performing" this month
        after not performing last month.
        """
        if self._previous_summary:
            new_performers = [stub for stub in self._get_all_user_stubs_with_extra_data()
                              if stub.is_newly_performing]
            return sorted(new_performers, key=lambda stub: -stub.delta_forms)
def get_newly_performing ( self ) : if self . _previous_summary : new_performers = [ stub for stub in self . _get_all_user_stubs_with_extra_data ( ) if stub . is_newly_performing ] return sorted ( new_performers , key = lambda stub : - stub . delta_forms )