SRD_PRIV int py_attr_as_str(PyObject *py_obj, const char *attr, char **outstr);
SRD_PRIV int py_dictitem_as_str(PyObject *py_obj, const char *key, char **outstr);
SRD_PRIV int py_str_as_str(PyObject *py_str, char **outstr);
SRD_PRIV int py_attr_as_str(PyObject *py_obj, const char *attr, char **outstr);
SRD_PRIV int py_dictitem_as_str(PyObject *py_obj, const char *key, char **outstr);
SRD_PRIV int py_str_as_str(PyObject *py_str, char **outstr);