Explicitly select items from a list or tuple

Question

I have the following Python list (can also be a tuple):

myList = [\'foo\', \'bar\', \'baz\', \'quux\']

I can say

>>&g         


        

Answer 1

It isn't built-in, but you can make a subclass of list that takes tuples as "indexes" if you'd like:

class MyList(list):

    def __getitem__(self, index):
        if isinstance(index, tuple):
            return [self[i] for i in index]
        return super(MyList, self).__getitem__(index)


seq = MyList("foo bar baaz quux mumble".split())
print seq[0]
print seq[2,4]
print seq[1::2]

printing

foo
['baaz', 'mumble']
['bar', 'quux']