Integrating C Code with Python - Revision history

PeterHarding at 05:31, 3 March 2009

2009-03-03T05:31:32Z

← Older revision		Revision as of 15:31, 3 March 2009
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	=Overview=		=Overview=

			This example was built under Linux...

	=Examples=		=Examples=

PeterHarding: /* Simaple */

2008-11-19T05:19:55Z

Simaple

← Older revision		Revision as of 15:19, 19 November 2008
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	=Examples=		=Examples=

	==~~Simaple~~==		==Simple==

	===Makefile===		===Makefile===
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	>>>		>>>
	</pre>		</pre>


	=references=		=references=

PeterHarding at 05:19, 19 November 2008

2008-11-19T05:19:45Z

← Older revision		Revision as of 15:19, 19 November 2008
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	>>> t		>>> t
	0		0
	~~>>> exit~~
	~~Use exit() or Ctrl-D (i.e. EOF) to exit~~
	>>>		>>>
	</pre>		</pre>

PeterHarding at 05:19, 19 November 2008

2008-11-19T05:19:21Z

← Older revision		Revision as of 15:19, 19 November 2008
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	{		{
	const char *command;		const char *command;
	int ~~sts~~;		int status;

	if (!PyArg_ParseTuple(args, "s", &command))		if (!PyArg_ParseTuple(args, "s", &command))
	return NULL;		return NULL;

	~~sts~~ = system(command);		status= system(command);

	return Py_BuildValue("i", ~~sts~~);		return Py_BuildValue("i", status);
	} // test_system		} // test_system

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	//------------------------------------------------------------------------------		//------------------------------------------------------------------------------
	</pre>		</pre>

			<pre>
			[xxx]# make
			gcc -I /usr/local/include/python2.5 -fPIC -c test.c
			gcc -shared -o test.so test.o
			[xxx]# python
			Python 2.5.1 (r251:54863, Aug 17 2007, 11:25:00)
			[GCC 4.1.1 20061011 (Red Hat 4.1.1-30)] on linux2
			Type "help", "copyright", "credits" or "license" for more information.
			>>> import test
			>>> t = test.system('ls -l')
			total 76
			-rw-r--r-- 1 root root 638 Nov 19 15:12 dls.cpp
			-rw-r--r-- 1 root root 134 Nov 19 15:13 hello.cpp
			-rw-r--r-- 1 root root 333 Nov 19 16:03 Makefile
			-rwxr-xr-x 1 root root 4204 Nov 19 14:35 Python__2_5.h
			-rwxr-xr-x 1 root root 5301 Nov 19 15:24 spam.so
			-rw-r--r-- 1 root root 1190 Nov 19 16:03 test.c
			-rw-r--r-- 1 root root 1884 Nov 19 16:10 test.o
			-rwxr-xr-x 1 root root 5301 Nov 19 16:10 test.so
			>>> t
			0
			>>> exit
			Use exit() or Ctrl-D (i.e. EOF) to exit
			>>>
			</pre>


	=references=		=references=

PeterHarding at 05:07, 19 November 2008

2008-11-19T05:07:28Z

← Older revision		Revision as of 15:07, 19 November 2008
Line 1:		Line 1:
	=Overview=		=Overview=

			=Examples=

			==Simaple==

			===Makefile===

			<pre>
			#---------------------------------------------------------------------

			all:
			gcc -I /usr/local/include/python2.5 -fPIC -c test.c
			gcc -shared -o test.so test.o

			#---------------------------------------------------------------------

			clean:
			-/bin/rm -rf *.o

			#---------------------------------------------------------------------
			</pre>

			===test.c===

			Note, on the system this demo was implemented on a version of Python 2.5 had been built from source and installed into /usr/local, so Python.h and other Python header files were located in /usr/local/include/python2.5/

			<pre>
			#include "Python.h"

			static PyObject *TestError;

			//------------------------------------------------------------------------------

			static PyObject* test_system(PyObject self, PyObject args);

			//------------------------------------------------------------------------------

			static PyMethodDef TestMethods[] = {
			{"system", test_system, METH_VARARGS, "Execute a shell command."},
			{NULL, NULL, 0, NULL} /* Sentinel */
			};

			//------------------------------------------------------------------------------

			static PyObject *
			test_system(PyObject self, PyObject args)
			{
			const char *command;
			int sts;

			if (!PyArg_ParseTuple(args, "s", &command))
			return NULL;

			sts = system(command);

			return Py_BuildValue("i", sts);
			} // test_system


			//------------------------------------------------------------------------------

			PyMODINIT_FUNC
			inittest(void)
			{
			PyObject *m;

			m = Py_InitModule("test", TestMethods);

			TestError = PyErr_NewException("test.error", NULL, NULL);

			Py_INCREF(TestError);

			PyModule_AddObject(m, "error", TestError);
			} // inittest

			//------------------------------------------------------------------------------
			</pre>

	=references=		=references=

PeterHarding at 03:26, 19 November 2008

2008-11-19T03:26:17Z

← Older revision		Revision as of 13:26, 19 November 2008
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	* http://www.python.org/doc/1.4/ext/ext.html		* http://www.python.org/doc/1.4/ext/ext.html
	* http://www.python.org/doc/1.4/ext/node2.html		* http://www.python.org/doc/1.4/ext/node2.html
			* http://www.python.org/doc/2.5/ext/ext.html


	[[Category:Python]]		[[Category:Python]]
	[[Category:SWIG]]		[[Category:SWIG]]

PeterHarding at 03:25, 19 November 2008

2008-11-19T03:25:46Z

← Older revision		Revision as of 13:25, 19 November 2008
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	=references=		=references=

			* http://www.python.org/doc/1.4/ext/ext.html
	* http://www.python.org/doc/1.4/ext/node2.html		* http://www.python.org/doc/1.4/ext/node2.html

	[[Category:Python]]		[[Category:Python]]
	[[Category:SWIG]]		[[Category:SWIG]]

PeterHarding at 03:25, 19 November 2008

2008-11-19T03:25:15Z

← Older revision		Revision as of 13:25, 19 November 2008
Line 3:		Line 3:

	=references=		=references=

			* http://www.python.org/doc/1.4/ext/node2.html

	[[Category:Python]]		[[Category:Python]]
	[[Category:SWIG]]		[[Category:SWIG]]

PeterHarding: New page: =Overview= =references= Category:Python Category:SWIG

2008-11-19T03:23:54Z

New page: =Overview= =references= Category:Python Category:SWIG

New page

=Overview=

=references=

[[Category:Python]]
[[Category:SWIG]]