It's of course a trade-off. I think the changes that made into Python 3.0 were welcome, and breaking downward compatibility was a hard but acceptable consequenc

It's of course a trade-off. I think the changes that made into Python 3.0 were welcome, and breaking downward compatibility was a hard but acceptable consequence. It's a difficult matter: Let the language evolve and break things, or make it grow old and stale? Careful ponderation should be made.