[Python-bugs-list] [ python-Bugs-497426 ] can't deepcopy recursive new objects
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Fri, 28 Dec 2001 13:29:57 -0800
Bugs item #497426, was opened at 2001-12-28 13:29
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Category: Type/class unification
Group: Python 2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Guido van Rossum (gvanrossum)
Assigned to: Guido van Rossum (gvanrossum)
Summary: can't deepcopy recursive new objects
Initial Comment:
(This was reported on c.l.py by Oliver Hartman, using a
more elaborate example.)
Take this simple recursive data structure:
| class Node(object):
| pass
| a = Node(); b = Node()
| a.b = b; b.a = a
| import copy
| c = copy.deepcopy(a)
This raises RuntimeError: maximum recursion depth
exceeded
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