I've been playing around with lists and I've been having trouble with code like this:
a = [1,2,3,4]
b = a
b.append(5)
print(a)
print(b)
Output:
[1,2,3,4,5]
[1,2,3,4,5]
Why is b.append appending to list a as well? Is there a way to prevent this?
