如何获取此代码以从单独的文件 python 文件中取出“成本”参数？

Question

    drink = input("Would you like to buy a espresso, latte or cappuccino?:\n").lower()
    if drink == "espresso":
        print(MENU["cost"])

I am getting this error when I try to input something. Can anyone help?

File "C:\Users\joeca\Udemy\Games\Day10\Coffee Machine.py", line 25, in purchase print(MENU["cost"]) KeyError: 'cost'

Answer 1

this MENU["cost"] mean that MENU is a dictionary and you try to get value of 'cost' key from that dictionary
the error shows you that in dictionary MENU there is no such key/value pair with the 'cost' key

Answer 2

In general, you would do it this way:

from othermodule import othervariable

drink = input("...").lower()
if drink == "espresso":
    print(MENU[othervariable])