list - Difference between .append() and += in python - Stack Overflow
Python Programming- List Methods in Python(append ,clear,copy,count,extend,index,insert,pop,sort etc) - YouTube
Mike Driscoll on Twitter: "#Python Pop Quiz 🐍❓ What is the contents of my_list? A) [4, 5, 6] B) [4, 5, 6, 7] C) None https://t.co/zyt2Cgq5wu" / Twitter
What is List? Append, Extend, Insert, Pop Methods in List - Python 101 - YouTube