Zhenhai Zhang a écrit :
Really weired; Here is my code:a = ["a", 1, 3, 4] print "a:", a c = copy(a) c[0] = "c" c[1] = 2 print "c:", c print "a:",a output as follows: a: ['a', 1, 3, 4] c: ['c' '2' '3' '4'] a: ['a', 1, 3, 4]Btw, I'm using python 2.5. I'm very curious why the copied list changed data type.
I think you're not using the stdlib's copy.copy function... Python 2.5.2 (r252:60911, Oct 5 2008, 19:24:49) GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information.
from copy import copy a = ["a", 1, 3, 4] print a
['a', 1, 3, 4]
c = copy(a) c
['a', 1, 3, 4]
c[0] = "c" c[1] = 2 c
['c', 2, 3, 4]
a
['a', 1, 3, 4]
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