Is a Python list guaranteed to have its elements stay in the order they are inserted in?

Question

If I have the following Python code

>>> x = []
>>> x = x + [1]
>>> x = x + [2]
>>> x = x + [3]
>>> x
[1, 2, 3]

Will x be guaranteed to always be [1,2,3], or are other orderings of the interim elements possible?

Answer 1

Yes, the order of elements in a python list is persistent.