How to allow list append() method to return the new list

Question

I want to do something like this:

myList = [10,20,30]
yourList = myList.append (40)

Unfortunately, list append does not return the modified

Answer 1

list.append is a built-in and therefore cannot be changed. But if you're willing to use something other than append, you could try +:

In [106]: myList = [10,20,30]

In [107]: yourList = myList + [40]

In [108]: print myList
[10, 20, 30]

In [109]: print yourList
[10, 20, 30, 40]

Of course, the downside to this is that a new list is created which takes a lot more time than append

Hope this helps