Function PyStringToStdString

Global/PythonUtils.cpp:435–462

std::string
PyStringToStdString(PyObject* py_val)
{
    ///Must be locked
    assert( PyThreadState_Get() );
    std::string val;
    PyObject* s = nullptr;
    // The following should work with Python 2 and 3.
    // https://stackoverflow.com/a/38600095
    if (!py_val) {
        val = "(null)";
    } else if( PyUnicode_Check(py_val) ) {  // python3 has unicode, but we convert to bytes
        s = PyUnicode_AsUTF8String(py_val);
    } else if( PyBytes_Check(py_val) ) {  // python2 has bytes already
        s = PyObject_Bytes(py_val);
    } else {
        // Not a string => Error, warning ...
        val = "(not a string)";
    }

    // If succesfully converted to bytes, then convert to C++ string
    if (s) {
        val = std::string( PyBytes_AS_STRING(s) );
        Py_XDECREF(s);
    }

    return val;
}

NATRON_PYTHON_NAMESPACE_EXIT