sphennings W. wrote:
When I enter the following code into IDLE do both lists have the same value?
They way you've done it, both names List1 and List2 refer/point to the
same list. Changes to one affect both.
How would I manipulate both lists separately?
Assign them separately or use a copy form of assignment, eg
List2 = List1[:]
Note however that this form of copy doesn't copy nested structures and
you'll have similar issues in that case. Look into deepcopy.
Emile
List1=[1,2,3]
List2=List1
List2.reverse()
print(List2)
[3, 2, 1]
print(List1)
[3, 2, 1]
List2.append(0)
print(List2)
[3, 2, 1, 0]
print(List1)
[3, 2, 1, 0]
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_______________________________________________
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http://mail.python.org/mailman/listinfo/tutor
