Re: Python2CPP ?
Diez B. Roggisch wrote: 1) Curiosity. I would like to see how well the translation goes. If there is something that works, it will look awful to the eye. Code-generators are generally not very idiomatic - they mapping is to localized to e.g. factorize out a more complex loop to something a generator might to much better. I suggest you take a look at pyrex, a python-like language that bridges python and C by generating C. 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. Then let it run in python. 3) Education. I would learn more about Python, C++, their similarities and differences. I also doubt that. digging into generated, non-idiomatic code won't do much for you to grasp what is behind Python or C++ as well. Think e.g. of templating, a major feature in C++ that certainly won't be utilized by a code-generator that does everything based on python C-structures and their C-API. Regards, Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
Diez B. Roggisch wrote: 1) Curiosity. I would like to see how well the translation goes. If there is something that works, it will look awful to the eye. Code-generators are generally not very idiomatic - they mapping is to localized to e.g. factorize out a more complex loop to something a generator might to much better. I suggest you take a look at pyrex, a python-like language that bridges python and C by generating C. 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. Then let it run in python. 3) Education. I would learn more about Python, C++, their similarities and differences. I also doubt that. digging into generated, non-idiomatic code won't do much for you to grasp what is behind Python or C++ as well. Think e.g. of templating, a major feature in C++ that certainly won't be utilized by a code-generator that does everything based on python C-structures and their C-API. Regards, Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
First of all: why do you want to translate pythont to C++? Anyway, this has a C back-end: http://www.pypy.org Szabi On 4/12/06, Michael Yanowitz [EMAIL PROTECTED] wrote: Hello: One topic that has always interested me are the Language translators. Are there any that convert between Python and C++ or Python and Java? I remember seeing one that converts from Python to or from Perl but couldn't find it on a quick google search. I did find a Python2C http://sourceforge.net/projects/p2c/ and I found: http://www.strout.net/python/ai/python2c.py which are obviously incomplete. I know there have been many discussions recently regarding C and C++. I am (or is it - was?) a C/C++ programmer for over 15 years. Just started with Python as we need to write come quick code in script form which can be generated and run through an interpreter. If not could there be a converter from Python to/from Language X and from Language X to/from C or C++? In another thread mentioning a decompiler. Perhaps Python to Assembly and Assembly 2 C? Thanks in advance: -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
RE: Python2CPP ?
First of all: why do you want to translate pythont to C++? Anyway, this has a C back-end: http://www.pypy.org Szabi Thanks. I want to translate from Python to C++ for a few reasons: 1) Curiosity. I would like to see how well the translation goes. 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. 3) Education. I would learn more about Python, C++, their similarities and differences. 4) Other. Just want to know how well Language translators work these days. I have seen Fortran2C and Pascal2C translators in the past. Would like to see how well these work with Python. Thanks in advance: -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
On 4/12/06, Michael Yanowitz [EMAIL PROTECTED] wrote: 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. I don't think you will get a more efficient code. The reason is the extremely dynamic nature of python. Almost everything is done at runtime. I think one goal of PyPy is to automatically infer the types of variable, but I don't think they have reached that point, yet. One project you can consider is the psycho python package which generates specialized native code at the price of high memory consumption. 3) Education. I would learn more about Python, C++, their similarities and differences. I don't think so. Higher level languages translated to C are not very readable (or at least that's what I have seen) 4) Other. Just want to know how well Language translators work these days. I have seen Fortran2C and Pascal2C translators in the past. Would like to see how well these work with Python. Than I think PyPy is the way to go. I have heard about another project with the goal of translating python to high efficiency C++ code but forgot the url. Anybody? Szabi -- http://mail.python.org/mailman/listinfo/python-list
RE: Python2CPP ?
1) Curiosity. I would like to see how well the translation goes. If there is something that works, it will look awful to the eye. Code-generators are generally not very idiomatic - they mapping is to localized to e.g. factorize out a more complex loop to something a generator might to much better. I suggest you take a look at pyrex, a python-like language that bridges python and C by generating C. 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. Then let it run in python. 3) Education. I would learn more about Python, C++, their similarities and differences. I also doubt that. digging into generated, non-idiomatic code won't do much for you to grasp what is behind Python or C++ as well. Think e.g. of templating, a major feature in C++ that certainly won't be utilized by a code-generator that does everything based on python C-structures and their C-API. Regards, Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
On Apr 12, 2006, at 5:13 AM, Michael Yanowitz wrote: Thanks. I want to translate from Python to C++ for a few reasons: 1) Curiosity. I would like to see how well the translation goes. 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. 3) Education. I would learn more about Python, C++, their similarities and differences. 4) Other. Just want to know how well Language translators work these days. I have seen Fortran2C and Pascal2C translators in the past. Would like to see how well these work with Python. Thanks in advance: You want this: http://shed-skin.blogspot.com/ It can only do a subset of Python, but it does generate C++ code, and it can see some big speedups. Jay P. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
On 2006-04-12, Michael Yanowitz [EMAIL PROTECTED] wrote: Hello: One topic that has always interested me are the Language translators. Are there any that convert between Python and C++ or Python and Java? I remember seeing one that converts from Python to or from Perl but couldn't find it on a quick google search. I did find a Python2C http://sourceforge.net/projects/p2c/ and I found: http://www.strout.net/python/ai/python2c.py which are obviously incomplete. I know there have been many discussions recently regarding C and C++. I am (or is it - was?) a C/C++ programmer for over 15 years. Just started with Python as we need to write come quick code in script form which can be generated and run through an interpreter. If not could there be a converter from Python to/from Language X and from Language X to/from C or C++? I've heard of an incomplete Python to C++ translator called Shedskin http://pycode.com/modules/?id=40PHPSESSID=1919541171352770795c2bcee95b46bd There's also a GNU project afoot for a Python to Scheme translator which I saw on http://savannah.gnu.org but now cannot find. This would be an interesting project, I suppose you'd write it in Python, then it could bootstrap itself into Scheme and C. Scheme can be translated to C using chicken: http://www.call-with-current-continuation.org/index.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
Hi! Szabolcs Berecz schrieb: On 4/12/06, Michael Yanowitz [EMAIL PROTECTED] wrote: 2) Efficiency. It is alot quicker to code something in Python. If I can write it in Python and auto-convert it to C++. I would save time coding. I don't think you will get a more efficient code. The reason is the extremely dynamic nature of python. Almost everything is done at runtime. I think one goal of PyPy is to automatically infer the types of variable, but I don't think they have reached that point, yet. One project you can consider is the psycho python package which generates specialized native code at the price of high memory consumption. PyPy can infer the types of variables - but not of any Python program. Also the C code that is the result is quite a bit more efficient (currently around a factor of 300 or so), but it works only for a restricted subset of Python (which is called RPython in PyPy jargon). PyPy can translate not only to C, but also to LLVM. Backends for Smalltalk, the CLI and Javascript are being worked on. 3) Education. I would learn more about Python, C++, their similarities and differences. I don't think so. Higher level languages translated to C are not very readable (or at least that's what I have seen) The result of a PyPy translation is definitively _not_ readable :-). 4) Other. Just want to know how well Language translators work these days. I have seen Fortran2C and Pascal2C translators in the past. Would like to see how well these work with Python. Than I think PyPy is the way to go. I have heard about another project with the goal of translating python to high efficiency C++ code but forgot the url. Anybody? It is not the goal of PyPy to be a generally useful Python to C (or to anything else) translator. The translator is just a side-product of how PyPy bootstraps its interpreter (which is written in RPython). The result might be somewhat useable for other stuff too, but it was never meant to work for a general Python program. Cheers, Carl Friedrich Bolz -- http://mail.python.org/mailman/listinfo/python-list
Re: Python2CPP ?
You should check Shed Skin (Python-to-C++ Compiler): http://shed-skin.blogspot.com/ -- http://mail.python.org/mailman/listinfo/python-list
