They don't implement....anything.  Guido implemented it.

but it is SUPREMELY unhelpful to list them as stand alone third party implementations of python, SINCE THEY ACTUALLY REQUIRE ANOTHER PYTHON TO RUN! You CANNOT run a Nuitka module without libpython being installed. 'standalone mode' simply links against an already existent cpython.

So while technically It MIGHT be considered another python (It isnt. Its a CPython tool), it helps no one to tell them its another implementation of the language.


On 11/5/2015 04:49, M.-A. Lemburg wrote:
On 05.11.2015 00:14, Alexander Walters wrote:
To be absolutely clear, Nuitka and Cython are not implementations of the 
language... because you
cannot run anything with them.  Can you really call it a language runtime if 
you cant run anything
with them?  they are tooling.  It is unhelpful to new users to list this 
tooling as an
implementation when they cant do anything with them alone.
Both are compilers and they do allow you to create Python
applications, just like gcc does for C (together with the
libc runtime), so I don't really understand why you would
not call them implementations of the language. They both
take Python code on input :-)

I guess putting them under a "Python Compiler" heading
would satisfy your request.

On 11/4/2015 08:24, M.-A. Lemburg wrote:
On 31.10.2015 22:23, Alexander Walters wrote:
Nuitka and Cython cant really be called alternate implementations of c python, 
since they kind of
require c python to run.  They are tooling at best.
I'm not sure I follow. Cython runs all Python code, plus
manages extensions for more easily compiling functions
to C extensions. Nuitka tries to implement most of CPython.
Both support use of Python C extensions.

It's true that both need libpython - that's why I listed them
as "Alternative CPython" and not as "Alternative Python"
implementations :-)

On 10/29/2015 05:21, M.-A. Lemburg wrote:
Some implementations which are not listed on the page:

Alternative CPython:

HotPy - https://sites.google.com/site/makingcpythonfast/
Pyston - http://blog.pyston.org/
Cython - http://cython.org/
Nuitka - http://nuitka.net/

Python for embedded devices:

MicroPython - https://micropython.org/
This list is incomplete.
Could you provide pointers to missing items ?

Python in the browser:

Brython - http://www.brython.info/
Skulpt - http://www.skulpt.org/
as is this one (it does not even list the python in the cloud implementation 
used on the front page
of python.org)
You mean PythonAnywhere ?

I think there's a misunderstanding here. I just listed
alternative implementations which aren't already mentioned
on https://www.python.org/download/alternatives/.

Python in the cloud:

Trinket - https://trinket.io/python
Wakari - https://wakari.io/

Python for education:

Python Fiddle - http://pythonfiddle.com/
Geometry Zen - http://www.geometryzen.org/
Evaluzio - http://www.evaluzio.net/

More alternative CPython packagings:

StaticPython - https://code.google.com/p/pts-mini-gpl/wiki/StaticPython


The wiki page lists a few more:

https://wiki.python.org/moin/PythonImplementations



On 29.10.2015 09:56, M.-A. Lemburg wrote:
On 29.10.2015 09:55, M.-A. Lemburg wrote:
There's currently a ticket open for the alternative implementations
page:

https://github.com/python/pythondotorg/issues/842

The page currently lists a few variants of Python implementations,
but is not up to date with more recent developments such as
Brython, Pyston, HotPy, etc.
Forgot the link to the page:

https://www.python.org/download/alternatives/

I think we should try to add all currently maintained variants
to the page.

Would someone like to help with this ?

We'd need ReST entries of the form:

* `PyPy <http://pypy.org/>`_ (A `fast <http://speed.pypy.org>`_ python
     implementation with a JIT compiler)

for each variant.

Thanks,

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