No comments yet about why in Python 3 the map behavior changed when the iterables are of different lengths? That seems like a gratuitous change. How is that better (not just different) than what Python 2 did?

Also, there was one other change in Python 3 that should have been left alone. I'm stealing the meme from a previous poster on HN:

   Python 3 broke "Hello, World!"

Why? Why couldn't that "wart" have been left the way it was? Sometimes it's smarter to not change something, especially if that change breaks nearly 100% of existing programs.