代码为：
favorite_language={
    'jen':'python',
    'sarah':'C',
    'edward':'ruby',
    'phil':'python',
    }

for language in favorite_language.values():
    print("The language is "+favorite_language[language].title())

报错为：KeyError:'python'

新人，不知问题出在哪里~~求解

明白了，谢谢！