R. David Murray <[email protected]> added the comment:
Yes, this working as intended. Consider:
Python 2.7a1+ (trunk:76725, Dec 9 2009, 09:26:36)
[GCC 4.4.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class baseClass(object):
... def __init__(self, testList=[]):
... self.testList = testList
... def insertItem(self):
... self.testList.append("testing from baseClass")
...
>>> a = baseClass()
>>> b = baseClass()
>>> del b
>>> a.insertItem()
>>> print a.testList
['testing from baseClass']
>>> b = baseClass()
>>> print b.testList
['testing from baseClass']
See
http://docs.python.org/faq/design.html#why-are-default-values-shared-between-objects
for an explanation of why.
----------
nosy: +r.david.murray
priority: -> normal
resolution: -> invalid
stage: -> committed/rejected
status: open -> closed
type: -> behavior
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<http://bugs.python.org/issue7465>
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