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object --+ | Node.VLibNode --+ | SupplyNode
base class for nodes which supply things Assumptions: 1) no parents Usage Example: >>> supplier = SupplyNode(contents=[1,2,3]) >>> supplier.next() 1 >>> supplier.next() 2 >>> supplier.next() 3 >>> supplier.next() Traceback (most recent call last): ... StopIteration >>> supplier.reset() >>> supplier.next() 1 >>> [x for x in supplier] [1, 2, 3]
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Inherited from Inherited from |
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Inherited from |
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x.__init__(...) initializes x; see help(type(x)) for signature
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resets our iteration state
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part of the iterator interface raises StopIteration on failure
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>>> p1 = VLibNode() >>> p2 = VLibNode() >>> c1 = VLibNode() >>> c1.AddParent(p1) >>> len(c1.GetParents()) 1 >>> len(p1.GetChildren()) 1 >>> c1.AddParent(p2,notify=0) >>> len(c1.GetParents()) 2 >>> len(p2.GetChildren()) 0 >>> p2.AddChild(c1,notify=0) >>> len(c1.GetParents()) 2 >>> len(p2.GetChildren()) 1
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