How can I reorder a list? [closed]
If I have a list [a,b,c,d,e] how can I reorder the items in an arbitrary manner like [d,c,a,b,e]?
Edit: I don't want to shuffle them. I want to re-order them in a predefined manner. (for example, I know that the 3rd element in the old list should become the first element in the new list)
Solution 1:
You can do it like this
mylist = ['a', 'b', 'c', 'd', 'e']
myorder = [3, 2, 0, 1, 4]
mylist = [mylist[i] for i in myorder]
print(mylist) # prints: ['d', 'c', 'a', 'b', 'e']
Solution 2:
>>> a = [1, 2, 3]
>>> a[0], a[2] = a[2], a[0]
>>> a
[3, 2, 1]