Growing Your List ➕

Lists aren't frozen — you can add to them while your program runs!

.append() sticks a new item onto the end of a list:

squad = ["Ana"]
squad.append("Bo")
squad.append("Cy")
print(squad)        # ➜ ['Ana', 'Bo', 'Cy']
print(len(squad))   # ➜ 3

Read it out loud as "squad, append Bo" — the list name, then a dot, then the thing you want to do to it.

You can even start with a totally empty list and fill it up:

collected = []
collected.append("first treasure!")

Your mission

You're packing for an adventure.

1. Make a list called inventory with 2 starting items
2. Use .append() three times to add 3 more items
3. Print the finished inventory
4. Print how many items you're carrying with len()