将if-else语句转换为单行的方法

Question

有没有办法在一行上执行以下操作？

if completion.is_anonymous: 
    user = 'Anonymous' 
else: 
    user = completion.user 

Answer 1

使用三元运营商：

user = 'Anonymous' if completion.is_anonymous else completion.user 

Answer 2

还有就是user = "Anonymous" if completion.is_anonymous else completion.user语法：

>>> a = 2 if True else 4 
>>> a 
2 
>>> a = 2 if False else 4 
>>> a 
4