I'm writing the following as a test case in C++:
using namespace boost::algorithm;
static PyObject* strtest(PyObject* self, PyObject* args)
{
std::string s = "Boost C++ Libraries";
to_upper(s);
PyObject * python_val = Py_BuildValue("s", s);
return python_val;
}
The code compiles and imports, but produces what looks like a reference to a memory location.
>>> math_demo.strtest()
' X\x0e'
I was expecting 'BOOST C++ LIBRARIES' as a return value
What am I missing?
Thanks
1 Answer
[Python 3.Docs]: Parsing arguments and building values - PyObject* Py_BuildValue(const char *format, ...) (or any other Python / C API function) works with C types not C++.
In order to fix the problem, use [cplusplus]: std::string::c_str:
PyObject *python_val = Py_BuildValue("s", s.c_str());
