On Wed, Jul 13, 2011 at 8:18 AM, Ian Kelly <ian.g.ke...@gmail.com> wrote:
> On Wed, Jul 13, 2011 at 8:19 AM, Anthony Kong <anthony.hw.k...@gmail.com> > wrote: > > One of the main difference is that pypy supports only R-Python, which > stands > > for 'Restricted Python". > > It is a subset of C-python language. > > This is wrong. The PyPy *interpreter* is written in RPython. At the > application level, PyPy supports the full syntax and semantics of > Python (with a few minor differences of the same sort that you find in > Jython or IronPython). > PyPy (2.7) and Jython (2.5) are pretty close to each other, though PyPy is quite a bit faster than Jython or CPython. Both PyPy and Jython are good implementations of the Python language, at least if you don't need a lot of C extension modules. IronPython doesn't appear to have a standard library. :( Or rather, it can use a CPython install's standard library, but a significant fraction of it doesn't work on IronPython - it doesn't appear to have been tested or adapted. There's something called FePy that includes IronPython and a better standard library, but AFAIK, it only works on windows.
-- http://mail.python.org/mailman/listinfo/python-list
