PyPy support for Python 3 (pypy-dev)

http://mail.python.org/pipermail/pypy-dev/2011-September/008288.html

by kbd • 15 years ago

61 17 15 years ago

mail.python.org

amirhhz• 15 years ago

What are the builtin and third-party libraries that people have had trouble with when using PyPy (modulo having to configure an appication to use PyPy at runtime instead of CPython)? For web-dev, scientific or otherwise?

In particular, are there any such problem cases where there is insufficient documentation?

old-gregg• 15 years ago

Cython is the biggest issue right now with PyPy: lots of 3rd party libraries depend on it, lxml and pyzmq come to mind.

I can't wait for Cython support: in our tests PyPy delivers amazing RAM savings, PyPy seems to have a particularly efficient list implementation specialized for small strings: we're seeing x3 savings there, in addition to 20% speedup.

axiak• 15 years ago

If Cython compiles to standard c modules, and pypy claims to support standard c modules in its latest release, doesn't pypy now support Cython? (In the same way that Cpython does?)

fijall• 15 years ago

PyPy doesn't have a specialized list for small strings. It might land one in the near future, your findings are a bit weird, but objects might be smaller because of smaller GC headers.

Cheers, fijal

jevinskie• 15 years ago

What is with the estimated costs? Are they looking for corporate sponsors? I've never seen a FOSS project do such a thing when discussing future plans.

unshift• 15 years ago

they don't expect the work to be done solely by volunteers, and are going to ask for donations on their website. it's laid out in the first paragraphs:

     The task is huge and it's unlikely that it will be 
     completed shortly based only on volunteer work, so we 
     came up with the following proposal, which splits the 
     work into several steps and sub-steps, togheter with an 
     estimate of how much money is needed to complete each 
     one.

kbd2• 15 years ago

I really wish Google would support PyPy. It'd be such a small amount of money for them to fund development. Given the PyPy team's demonstrable success and Google's otherwise strong commitment to Python I can't understand why they don't.

sho_hn4• 15 years ago

Warms my heart to read a solid confirmation that PyPy as a project is committed to implementing Python 3 support. For some time now I've been lamenting the dilemma that is having to choose between PyPy and CPython 3.x, plus it's always left a bit of a bitter after-taste that any rise in the popularity of PyPy would serve to prolong the transition pains as long as there wasn't a clear and public plan toward Python 3 support.

kbd2• 15 years ago

Additional discussion on reddit: http://www.reddit.com/r/Python/comments/kd38b/pypys_python_3...

sho_hn4• 15 years ago

There's discussion of the Python version supported by AppEngine in there ... it's funny to think that once PyPy supports Python 3, and assuming the RPython interpreter implementing that support will still be compatible with Python 2.x, you might actually be able to use Python 3 on AppEngine by running PyPy's Python 3 interpreter against whatever Python 2.x AppEngine offers.

In fact, has anyone tried running PyPy's 2.7 interpreter on AppEngine's 2.5?

Not that I would expect such a setup to be production-ready, but just for the fun of it ...

densh• 15 years ago

Actual donation page:

http://pypy.org/py3donate.html

PyPy support for Python 3 (pypy-dev)

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