A question on modification of a list via a function invocation
Mok-Kong Shen
mok-kong.shen at t-online.de
Mon Aug 14 14:21:55 EDT 2017
I ran the attached program and got the following output:
[1, 2, 3]
[3, 6, 9]
I don't understand why the modification doesn't work in the case of
test() but does work in the case of test1().
Thanks for your help in advance.
M. K. Shen
------------------------------------------------------------
def test(alist):
alist=[3,6,9]
return
def test1(alist):
alist[0],alist[1],alist[2]=3,6,9
return
ss=[1,2,3]
test(ss)
print(ss)
test1(ss)
print(ss)
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