PyInterpreter: fx BornAgain::addPythonPath

PyCore/Embed/PyInterpreter.cpp

@@ -129,9 +129,10 @@ bool PyInterpreter::checkError()
 // Python stable ABI
 void PyInterpreter::addPythonPath(const std::string& path)
 {
-    ASSERT(!path.empty());
-    PyObject* sysPath = PySys_GetObject("path");
-    PyList_Append(sysPath, PyUnicode_FromString(path.c_str())); // add to `PYTHONPATH`
+    if (!path.empty()) {
+        PyObject* sysPath = PySys_GetObject("path");
+        PyList_Append(sysPath, PyUnicode_FromString(path.c_str())); // add to `PYTHONPATH`
+    }
 }
 
 // Python stable ABI