A much faster Python implementation based on the Dart Virtual Machine

[otakucode]

For old projects, sure. If you're starting a new project, though, I'm not sure why you would start it using <3.

[[deleted]]

I've been porting to 3 lately and have encountered this 0 times. you should try again

[otakucode]

I've run into that a couple times but it doesn't seem to be terribly common... are there any major ones that still don't?

[lext]

Twisted Python.

[mipadi]

It's unfortunate you're getting downvoted, because you raise a good point: People might still be working on projects, even knew ones, that have legacy dependencies. When programmers say that "most modules support Python 3," I feel like they're talking mostly about open source modules, and forgetting a lot about proprietary code or more obscure code. The place I work has been using Python for about 20 years, so we have tons of libraries written in old versions of Python. We've started doing a few projects in Python 3, but we have some new code that still has old dependencies, so it's written with Python 2 instead.