Move an item inside a list?

Question

In Python, how do I move an item to a definite index in a list?

Answer 1

If you don't know the position of the item, you may need to find the index first:

old_index = list1.index(item)

then move it:

list1.insert(new_index, list1.pop(old_index))

or IMHO a cleaner way:

try:
  list1.remove(item)
  list1.insert(new_index, item)
except ValueError:
  pass