Question

Consider I have an array of elements out of which I want to create a new ‘iterable’ which on every next applies a custom ‘transformation’. What’s the proper way of doing it under python 2.x?

For people familiar with Java, the equivalent is Iterables#transform from google’s collections framework.

Ok as for a dummy example (coming from Java)

Iterable<Foo> foos = Iterables.transform(strings, new Function<String, Foo>()
    {
        public Foo apply(String string) {
        return new Foo(string);
        }
    });


//use foos below

Answer 1

A generator expression:

(foobar(x) for x in S)