Can a python class contain an instance of itself as a data container may look like this? class A: def __init__(self, val): self.a = A(val) self.val = val aa = A(2) #this will cause RuntimeError: maximum recursion depth exceeded My purpose is using this class as a data container contain a copy inside if it when it be inited to reduce the deepcopy action. It may used as an "undo" chain give a chance to get the init val's value when it's necessary. Is it possible for such an action? Continue reading...
