如何在python中将列表['1'],['2'],['3']更改为1,2,3

Question

我想改变

mylist = [['1'],['2'],['3']]

成为

mynewlist = (1,2,3)

如何在python中做到这一点？

Answer 1

一个简单的列表理解将做:

mynewlist = [int(x[0]) for x in mylist]

当然,如果你真的想要一个元组作为输出:

mynewtuple = tuple(int(x[0]) for x in mylist)