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POPython instances and attributes: is this a bug or i got it totally wrong?
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2402887
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2402912
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2010-03-08T16:37:56.467
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1
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2010-03-08T16:55:30.130
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246482
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5
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273
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text
Body
Suppose you have something like this: <pre><code>class intlist: def __init__(self,l = []): self.l = l def add(self,a): self.l.append(a) def appender(a): obj = intlist() obj.add(a) print obj.l if __name__ == "__main__": for i in range(5): appender(i) </code></pre> A function creates an instance of intlist and calls on this fresh instance the method append on the instance attribute l. How comes the output of this code is: [0] [0, 1] [0, 1, 2] [0, 1, 2, 3] [0, 1, 2, 3, 4] ? If i switch <pre><code>obj = intlist() </code></pre> with <pre><code>obj = intlist(l=[]) </code></pre> I get the desired output [0] [1] [2] [3] [4] Why this happens? Thanks
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<python><class><attributes><instance>
Title
Python instances and attributes: is this a bug or i got it totally wrong?
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 POPython instances and attributes: is this a bug or i got it totally wrong?
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