This is purely sport question. I don't really intend to use the answer in my code, but I am wondering, if such a feat could be done.
I have a following problem: I have a list based upon which I would like to construct a different one. I could simply use list comprehensions, but there is an additional trick: for some elements on this list, I would like to return two objects. For example I have a list of 0s and 1s and for 0 I would like to add 1 'a' and for 1 I would like to add 2 'b', like this: [1, 0, 0, 1] -> ['b', 'b', 'a', 'a', 'b', 'b'] The easy way is to return a tuple ('b', 'b') for 1s and then flatten them. But this doesn't seem very right - I'd prefer to create a nice iterable right away. Is it possible to achieve this? Curiosly, the other way round is pretty simple to achieve, because you can filter objects using if in list comprehension. -- Filip Gruszczyński -- http://mail.python.org/mailman/listinfo/python-list