capi-sig September 2009

capi-sig@python.org

6 participants
6 discussions

ANNOUNCE: PyBindGen 0.8
by Gustavo Carneiro 10 Mar '22

10 Mar '22

The other day I released PyBindGen 0.8. Main news is that it features a new experimental header file scanner based on pygccxml (i.e., it's similar to py++ in scope, if not in maturity, but does not use boost.pythonunderneath). == What == PyBindGen is a Python module that is geared to generating C/C++ code that binds a C/C++ library for Python. It does so without extensive use of either C++ templates or C pre-processor macros. It has modular handling of C/C++ types, and can be easily extended with Python plugins. The generated code is almost as clean as what a human programmer would write, and does not depend on any library or header files besides Python itself. == Where == https://launchpad.net/pybindgen/ == NEWS == - Support C++ instance attributes through getter/setter methods - Support functions as methods of C++ classes - Support the PyObject* type - Support unsigned int, C strings (char*) (from Mark Lee) - Add basic support for enum types - New experimental automatic module generator based on C/C++ header file scanner and annotations in comments, using pygccxml - Some bug fixes -- Gustavo J. A. M. Carneiro INESC Porto, Telecommunications and Multimedia Unit "The universe is always one step beyond logic." -- Frank Herbert

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C API equivalent to abc.ABCMeta.register?
by Daniel Stutzbach 02 Mar '22

02 Mar '22

I'm the author of an extension module (blist) that provides a type that fits the MutableSequence API. Is there a canonical way for me to register the type as a MutableSequence from the C API? -- Daniel Stutzbach, Ph.D. President, Stutzbach Enterprises, LLC <http://stutzbachenterprises.com>

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expy 0.1.2 released!
by Yingjie Lan 21 Sep '09

21 Sep '09

Hi, This is to announce the release of expy 0.1.2 What's new? -------------- 1. allow both keywords and positional arguments to functions/methods. 2. allow wrapping up your returned value by yourself. (example is provided in tutorial) What is expy? -------------- expy is an expressway to extend Python! For more details on expy: http://expy.sf.net/ NOTE: if you can't find the latest version from sf, please go to the SVN, then you can download the tarball or check out. Thanks! Yingjie

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Re: [capi-sig] capi-sig Digest, Vol 26, Issue 5
by cloudage＠gmail.com 13 Sep '09

13 Sep '09

thanks for reply. i already tried bring a python31.dll with my application,but when i copy them to a computer without python installed,the initialization will fail,and i got a error message as: Fatal Python error: Py_Initialize: can't initialize sys standard streams ImportError: No module named encodings.utf_8 This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. i think maybe i have to take more than just a dll with my distribution... and this is not so comfortable for a application which just want some python scripting ability... 2009/9/13 <capi-sig-request(a)python.org> > Send capi-sig mailing list submissions to > capi-sig(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/mailman/listinfo/capi-sig > or, via email, send a message with subject or body 'help' to > capi-sig-request(a)python.org > > You can reach the person managing the list at > capi-sig-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of capi-sig digest..." > > > Today's Topics: > > 1. Re: how to distribute a application which with python > scriptting ability? (Ulf Worsoe) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 12 Sep 2009 13:24:16 +0200 > From: Ulf Worsoe <ulf.worsoe(a)mosek.com> > To: capi-sig(a)python.org > Subject: Re: [capi-sig] how to distribute a application which with > python scriptting ability? > Message-ID: > <c432a9980909120424q69bb4006r57a0caf87907b22a(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I did something more or less like this recently, except I included the > python.exe too. > I think you could try the following: Put your executable and the > python dll (python31.dll?) plus any .pyd you'll need in the same > directory. Make a Python31.zip containing all necessary .py files (if > you download the source, the whole .py library tree should be there - > just zip it or as much of it you need). > > When you initialize python from your application add the path of > Python31.zip to sys.path (e.g. > sys.path.append('c:\home\myname\mydistro\Python31.zip')). > > 1. Should be easy enough, you only need the dll for the raw > interpreter, I think. > 2. This is trickier; you'll probably have a hard time weeding out > "dangerous functions"... several that might be considered so are > included in the interpreter (e.g. basic IO or execfile). I don't know > how you should do that. > > Regarding redistributable runtime: I think the license allows you to > redistribute an unmodified python31.dll. > > /ulfw > > On Sat, Sep 12, 2009 at 6:55 AM, <cloudage(a)gmail.com> wrote: > > i use win32 and msvc9,i have installed the python3.1 on my computer,and > > i played with it for several days.i also played the Boost.Python that > enable > > me easily export classes into python,but now when i want to distribute my > > application to another computer without python installed,i `m confused. > > > > so plz consider an application which: > > > > 1. Exported some packages from itself to python and have a UI like a > script > > editor window that enable user type python script in and excute it. > > > > 2. Users can only use these packages supported by application it self to > > maintain the application,they are limited to use the dangerous > > default packages like io things provided by original python distribution. > > > > i thought there may be a python.dll that i just need take it with my > > application,but seems i`m wrong,there isn`t ?such a file looks like a > python > > redistribute runtime.and about the question 2,the computer without python > > installed can not have a python path that i should copy my pyd into. > > > > ?so how should i do these?i totally have no idea. > > thanks for any help. > > _______________________________________________ > > capi-sig mailing list > > capi-sig(a)python.org > > http://mail.python.org/mailman/listinfo/capi-sig > > > > > > -- > Ulf Wors?e > Mosek ApS > > > ------------------------------ > > _______________________________________________ > capi-sig mailing list > capi-sig(a)python.org > http://mail.python.org/mailman/listinfo/capi-sig > > > End of capi-sig Digest, Vol 26, Issue 5 > *************************************** >

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how to distribute a application which with python scriptting ability?
by cloudage＠gmail.com 12 Sep '09

12 Sep '09

i use win32 and msvc9,i have installed the python3.1 on my computer,and i played with it for several days.i also played the Boost.Python that enable me easily export classes into python,but now when i want to distribute my application to another computer without python installed,i `m confused. so plz consider an application which: 1. Exported some packages from itself to python and have a UI like a script editor window that enable user type python script in and excute it. 2. Users can only use these packages supported by application it self to maintain the application,they are limited to use the dangerous default packages like io things provided by original python distribution. i thought there may be a python.dll that i just need take it with my application,but seems i`m wrong,there isn`t such a file looks like a python redistribute runtime.and about the question 2,the computer without python installed can not have a python path that i should copy my pyd into. so how should i do these?i totally have no idea. thanks for any help.

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ANN: PyBindGen 0.12 released
by Gustavo Carneiro 01 Sep '09

01 Sep '09

PyBindGen is a Python module that is geared to generating C/C++ code that binds a C/C++ library for Python. It does so without extensive use of either C++ templates or C pre-processor macros. It has modular handling of C/C++ types, and can be easily extended with Python plugins. The generated code is almost as clean as what a human programmer would write. It can be downloaded from: http://code.google.com/p/pybindgen/ Bug reports should be filed here: https://bugs.launchpad.net/pybindgen === pybindgen 0.12 === - Now we can catch C++ exceptions and translate them into Python - New API to add container iteration powers to wrapped C++ classes - Unary minus operator support (J. Michael Owen) - CppMethod: is_pure_virtual=True should imply is_virtual=True - More polish for numeric operators with non-class right operand - Virtual methods regressions fixed - gccxmlparser: don't try to wrap private/protected operators - MSVC compilation fix - unsigned long type handlers (J. Michael Owen) - tp_len/__len__ works now with overloaded methods (J. Michael Owen) - Add foreign_cpp_namespace option to Function wrappers - Misc. cleanup and bug fixes -- Gustavo J. A. M. Carneiro INESC Porto, Telecommunications and Multimedia Unit "The universe is always one step beyond logic." -- Frank Herbert

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capi-sig September 2009