def __init__(self, initial_value, value_forwarder=None):
"""
Initialize the object.
initial_value -- the initial value
value_forwarder -- the method that updates the actual value on the
thing
"""
EventEmitter.__init__(self)
self.last_value = initial_value
self.value_forwarder = value_forwarder
def __init__(self, initial_value, value_forwarder=None):
"""
Initialize the object.
initial_value -- the initial value
value_forwarder -- the method that updates the actual value on the
thing
"""
EventEmitter.__init__(self)
self.last_value = initial_value
if value_forwarder is None:
def fn(_):
raise AttributeError('Read-only value')
self.value_forwarder = fn
else:
self.value_forwarder = value_forwarder