Python:更新列表参数

Question

对于字符串我们可以有

msg = 'successfully returned with msg: %s'
msg %= "Elegant";

我们可以对列表做同样的事情吗，

例如，

cmd = [
    "Message %s",
    "Param %s"
    ]

cmd %= (msg, param)

Answer 1

您可以使用zip() 将两个列表配对到一个新的list comprehension 中。 :

>>> cmd = [
...     "Message %s",
...     "Param %s"
...     ]
>>> msg = "foo"
>>> param = "bar"
>>> newcmd = [item % par for item,par in zip(cmd, (msg,param))]
>>> newcmd
['Message foo', 'Param bar']