Allen wrote:
> I use try catch, but cannot catch the execeptions of execution python
> method.
>
> PYCALL_API void PyCall(const char * pszModule, const char * pszFunc,
> void * pArg)
> {
> if (pszModule == NULL || pszFunc == NULL)
> {
> return;
> }
>
> Py_Initialize();
>
> PyObject * pModule = NULL;
> PyObject * pFunc = NULL;
>
> try {
>
> pModule = PyImport_ImportModule(pszModule);
> pFunc = PyObject_GetAttrString(pModule, pszFunc);
>
> PyEval_CallObject(pFunc, (PyObject*)pArg);
> } catch (...) {
> fprintf(stderr, "Error: call python method failed");
> }
>
> Py_Finalize();
> }
>
> Can I catch it from C++?
No. CPython is written in C, not C++, and C has no concept of exceptions.
Exceptions in Python is usually indicated by return value in the
interpreter, and has no mapping to the C++ exception model. You should
never let C++ exceptions propagate into the python functions either.
PyImport_ImportModule will return NULL if an exception occured, and so will
also PyObject_GetAttrString and PyEval_CallObject do.
--
rbh
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