# Homework 23, problem 3 -- solution.

def lookup(d, key):
    value = d.get(key)
    if value is None:
        return "(not found)"
    return value

player = {"name": "Keiko", "level": 7}

print(lookup(player, "name"))
print(lookup(player, "email"))

key = "level"
print(lookup(player, key))