This Week's Worksheet ⬇️

mentor06.pdf

mentor06_sol.pdf

List Review

What is List?

• sequence of elements
• square brackets denote Python lists
• Lists can contain any type of object, even other lists
• empty brackets denote an empty list []

List Operations

1. Creating new list
   • lst + lst
   • lst * n
   • lst[i:j]
   • list(lst)
2. Zero indexing
3. List slicing
   • Inclusive start, exclusive end
4. Deep vs. Shallow copy
   • Shallow copy: when you copy a nested list, copy pointers to the nested list
   • Deep copy: make a new copy of the nested list

List Operators

• len() returns length of list
• in operator checks if the list contains an element
• + operator concatenates two lsits
• Unpacking elements: x, y = [1, 2]

List Comprehension