Marc Leconte wrote:
Dear all,
I have a problem with the following code (ubuntu 8.04, Python 2.5.2):
class Toto(object):
def __init__(self, number, mylist=[]):
self.number=number
self.mylist=mylist
pass
pass
listA=Toto(number=1)
listB=Toto(number=2)
listA.mylist.append(5)
print "1) ", listA.mylist
print "2) ", listB.mylist
1) [5]
2) [5]
I would have expected
1) [5]
2) []
Thanks in advance for advice,
Read the Python FAQ and or the reference manual section on def
statements (function definition) which specifically has a paragraph with
a bold-face statement explaining this.
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