diff --git a/src/tdedistutils.py b/src/tdedistutils.py
index 00a5ced..6dad91d 100644
--- a/src/tdedistutils.py
+++ b/src/tdedistutils.py
@@ -962,7 +962,7 @@ static TDECModule* return_instance( TQWidget *parent, const char *name ) {
 
     // Call the factory function. Set up the args.
     PyObject *pyParent = PyLong_FromVoidPtr(parent);
-    PyObject *pyName = PyString_FromString(MODULE_NAME);
+    PyObject *pyName = PyBytes_FromString(MODULE_NAME);
         // Using NN here is effect gives our references to the arguement away.
     PyObject *args = Py_BuildValue ("NN", pyParent, pyName);
     if(pyName && pyParent && args) {
@@ -1858,7 +1858,7 @@ extern "C" {
         PyRun_SimpleString("import sys\n");
         PyRun_SimpleString("sys.path.append('"MODULE_DIR"')\n");
 
-        pName = PyString_FromString(modname);
+        pName = PyBytes_FromString(modname);
         pModule = PyImport_Import(pName);
 
         Py_XDECREF(pName);
@@ -1881,8 +1881,8 @@ extern "C" {
             } else {
                 pArgs = PyTuple_New(2);
 
-                pArg1 = PyString_FromString(argv[2]);
-                pArg2 = PyString_FromString(argv[3]);
+                pArg1 = PyBytes_FromString(argv[2]);
+                pArg2 = PyBytes_FromString(argv[3]);
 
                 PyTuple_SetItem(pArgs, 0, pArg1);
                 PyTuple_SetItem(pArgs, 1, pArg2);