Why I cannot attribuite a value to a list using .apprend?

Question

Hello, so, I have trying to do a code with a Zelda I mecanic, but when I apprend "Letter" to the inventory, comes this error, I searched for others like .extended, but still doesn't work, I think that I wrong the syntax, but, I check it and the syntax is correct 🤔

The code is:
https://code.sololearn.com/cHNxgbR7pKP0/?ref=app

Answer 1

just a spelling mistake. change to "append"