Unable to get the exception string from a python function

[sudheerhebbale]

First of all this is an excellent library and very useful, thanks for this.

While calling a function in a python module from a lua module, if the called python function throws an exception, the exception gets printed on STDERR, however it will be better if the same is printed along with luaL_error

I tried modifying code pythoninlua.c in the function py_object_call it works OK

Please consider making changes to this effect.

        PyObject *exc_type, *exc_value, *exc_traceback;
        PyErr_Fetch(&exc_type, &exc_value, &exc_traceback);
        PyObject *exc_str = PyObject_Str(exc_value);
        const char *exc_cstr = PyUnicode_AsUTF8(exc_str);
        exc_cstr = (!exc_cstr)? "ERROR": exc_cstr;
        luaL_error(L, "error calling python function [%s]", exc_cstr);

Note: Cleaning up memory with DECREF etc. is not taken care in the example

[bastibe]

Sounds good. Would you like to add this as a pull request?

[sudheerhebbale]

OK, will make the change and raise one

[sudheerhebbale]

Have raised a pull request, please have a look