Method add_callback

cflib/utils/callbacks.py:42–45

Register cb as a new callback. Will not register duplicates.

(self, cb)

        self.callbacks = []

    def add_callback(self, cb):
        """ Register cb as a new callback. Will not register duplicates. """
        if ((cb in self.callbacks) is False):
            self.callbacks.append(cb)

    def remove_callback(self, cb):
        """ Un-register cb from the callbacks """