PYTHON 与C相互交互调用实例解析（转载）

puvttd

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1、C中调用PYTHON
#include  
int main(int argc, char *argv[])
{
Py_Initialize();
PyRun_SimpleString("from time import time,ctime
"
"print 'Today is',ctime(time())
");
Py_Finalize();
return 0;
}
使用前工具：
Vc++编译器
Python 解释器
如没有装VC，可以去微软网站下一个C++的编译器，地址如下：
http://download.microsoft.com/download/3/9/b/39bac755-0a1e-4d0b-b72c-3a158b7444c4/VCToolkitSetup.exe
装完后，在环境变量中把PYTHON的INCLUDE和LIBS分别加入下面2个宏
INCLUDE
LIB
1、C中调用PYTHON
#include  
int main(int argc, char *argv[])
{
Py_Initialize();
PyRun_SimpleString("from time import time,ctime
"
"print 'Today is',ctime(time())
");
Py_Finalize();
return 0;
}
直接用CL 文件名  编译就是
2、用C生成DLL,用PYTHON调用
C代码：如FOO.C
#include
/* Define the method table. */
static PyObject *foo_bar(PyObject *self, PyObject *args);
static PyMethodDef FooMethods[] = {
{"bar",  foo_bar, METH_VARARGS},
{NULL, NULL}
};
/* Here's the initialization function.  We don't need to do anything
for our own needs, but Python needs that method table. */
void initfoo()
{
(void) Py_InitModule("foo", FooMethods);
}
/* Finally, let's do something ... involved ... as an example function. */
static PyObject *foo_bar(PyObject *self, PyObject *args)
{
char *string;
int   len;
if (!PyArg_ParseTuple(args, "s", &string))
return NULL;
len = strlen(string);
return Py_Buildvalue("i", len);
}
C定义文件：foo.def
EXPORTS
initfoo
编译生成foo.dll
Cl -c foo.c;
link foo.obj /dll /def:foo.def /OUT:foo.dll
在PYTHON中调用：
Import foo
Dir(foo)
…
即可以看到结果：
>>> import foo
>>> dir(foo)
['__doc__', '__file__', '__name__', 'bar']
>>> ^Z


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/8322/showart_59175.html