Appending in Python
It's common to create an empty list then fill it with values using a loop. We can add values to the end of a list using the .append() method:
cards = []
cards.append("nvidia")
cards.append("amd")
# the cards list is now ['nvidia', 'amd']
Assignment
We need to generate a unique user ID for each player in the game. An ID is just a unique number that identifies a user.
Let's finish the generate_user_list function. In the body of the loop, use the incrementing value i as unique IDs and append them to the player_ids list.