which algorithm does python sort use code example

Example 1: python sort algorithm

a = [1, 2, 0, 8, 4, 5, 3, 7, 6]
print(a.sort())

Example 2: sorting algorithms in python

9 Sorting Algorithms implementation in Python at this link:
  
https://github.com/shreyasvedpathak/Data-Structure-Python/tree/master/Sorting%20Algorithms