(self)
Get a list of dropout users - defined as those who were active last month
        but are not active this month
Get a list of dropout users - defined as those who were active last month
        but are not active this month
Get a list of dropout users - defined as those who were active last month but are not active this month
def get_dropouts(self):
        """
        Get a list of dropout users - defined as those who were active last month
        but are not active this month
        """
        if self._previous_summary:
            dropouts = [stub for stub in self._get_all_user_stubs_with_extra_data() if not stub.is_active]
            return sorted(dropouts, key=lambda stub: stub.delta_forms)
def get_dropouts ( self ) : if self . _previous_summary : dropouts = [ stub for stub in self . _get_all_user_stubs_with_extra_data ( ) if not stub . is_active ] return sorted ( dropouts , key = lambda stub : stub . delta_forms )