Is there a tool that will take a requirements.txt file and let you know whether all the packages in that file are already Python 3 compatible (by looking up cor

Is there a tool that will take a requirements.txt file and let you know whether all the packages in that file are already Python 3 compatible (by looking up corresponding packages on PyPI)? If not, that tool seems worth writing, and then we can do a poll of some major production codebases and see whether Python 3 support is actually missing. As for "Python 2.8": meh. I think we should just support the development of tulip / asyncio in Python 3.4 (see docs, this is looking awesome already: http://docs.python.org/3.4/library/asyncio.html http://docs.python.org/3.4/library/asyncio.html), then use our blog platforms as Pythonistas to promote all the new async programming you can do using asyncio + Futures + yield from, port over important async frameworks like Tornado/Twisted, etc. In that case, Python 3.4 becomes the Python release that gives you all the power / convenience of Python 2.x with a complete cleanup of callback spaghetti code as demonstrated in the "hello, world" co-routine example: http://docs.python.org/3.4/library/asyncio-task.html#example-hello-world-coroutine http://docs.python.org/3.4/library/asyncio-task.html#example... -- I think async programming is mainstream enough, especially in web/mobile/API applications, that this will be a compelling draw for people. I think the only thing GvR and crew got wrong is the timing -- it probably won't take 5 years from release for everyone to migrate to Python 3, but it will take more like 8-10. But it'll happen.