使用Swig在C中调用Python函数

void callMethod(void (*someMethod)()) {
    (*someMethod)();
}

我的Swig .i文件是：

%module test
%{
#define SWIG_FILE_WITH_INIT

extern void callMethod(void (*someMethod)());
%}

%typemap (in) void*
%{
    $1 = PyCObject_AsVoidPtr($input);
%}


extern void callMethod(void (*someMethod)());

这是我的错误：

In [1]: import test

In [2]: b=test.callMethod

In [3]: def func():
   ...:     print "hi"
   ...:     
   ...:     

In [4]: b(func)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)

$DIR/<ipython console> in <module>()

TypeError: in method 'callMethod',argument 1 of type 'void (*)()'

我怎么能用Swig做我想做的事？

提前致谢！