what do <> mean in python lists code example

Example 1: a list inside a list python

board = []    
for i in range(6): # create a list with nested lists
    board.append([])
    for n in range(6):
        board[i].append("O") # fills nested lists with data

Example 2: how to make a list in python

list = [1, 2, 4, 5, 6]