swig c python

http://www.swig.org/translations/chinese/tutorial.html

 /* File : example.c */ 
 #include <time.h> double My_variable = 3.0;  int fact(int n) {     if (n <= 1) return 1;     else return n*fact(n-1); }  int my_mod(int x, int y) {     return (x%y); }  char *get_time() {     time_t ltime;     time(<ime);     return ctime(<ime); }

 /* example.i */ %module example %{ /* Put header files here or function declarations like below */ extern double My_variable; extern int fact(int n); extern int my_mod(int x, int y); extern char *get_time(); %}  extern double My_variable; extern int fact(int n); extern int my_mod(int x, int y); extern char *get_time();

swig -python example.i
xsheng@bcxcp-AS-dev01:~/workspace/swig$ gcc -fpic -c example.c example_wrap.c  -I /home/ezhao/tools/python-2.7/include/python2.7/
xsheng@bcxcp-AS-dev01:~/workspace/swig$ ld -shared example.o example_wrap.o -o _example.so 

现在可以使用如下Python模块 :

 >>> import example >>> example.fact(5) 120 >>> example.my_mod(7,3) 1 >>> example.get_time() 'Sun Feb 11 23:01:07 1996' >>>