In Python3 we need to return the module

src/pyxforms/bitmaps.c

@@ -138,4 +138,5 @@ PyInit_bitmaps()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module bitmaps");
+    return m;
 }

src/pyxforms/box.c

@@ -95,5 +95,6 @@ PyInit_box()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module box");
+    return m;
 }
 

src/pyxforms/browser.c

@@ -492,5 +492,6 @@ PyInit_browser()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module browser");
+    return m;
 }
 

src/pyxforms/button.c

@@ -375,5 +375,6 @@ PyInit_button()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module button");
+    return m;
 }
 

src/pyxforms/choice.c

@@ -351,5 +351,6 @@ PyInit_choice()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module choice");
+    return m;
 }
 

src/pyxforms/clock.c

@@ -112,5 +112,6 @@ PyInit_clock()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module clock");
+    return m;
 }
 

src/pyxforms/counter.c

@@ -210,5 +210,6 @@ PyInit_counter()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module counter");
+    return m;
 }
 

src/pyxforms/dial.c

@@ -210,5 +210,6 @@ PyInit_dial()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module dial");
+    return m;
 }
 

src/pyxforms/forms.c

@@ -681,7 +681,7 @@ static struct PyModuleDef moduledef =
 };
 
 PyMODINIT_FUNC
-PyInit_forms()
+PyInit_forms(void)
 {
     PyObject *m, *d;
 
@@ -698,5 +698,6 @@ PyInit_forms()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module forms");
+    return m;
 }
 

src/pyxforms/frame.c

@@ -93,5 +93,6 @@ PyInit_frame()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module frame");
+    return m;
 }
 

src/pyxforms/goodies.c

@@ -505,5 +505,6 @@ PyInit_goodies()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module goodies");
+    return m;
 }
 

src/pyxforms/input.c

@@ -252,5 +252,6 @@ PyInit_input()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module input");
+    return m;
 }
 

src/pyxforms/menu.c

@@ -312,5 +312,6 @@ PyInit_menu()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module menu");
+    return m;
 }
 

src/pyxforms/objects.c

@@ -519,5 +519,6 @@ PyInit_objects()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module objects");
+    return m;
 }
 

src/pyxforms/pixmaps.c

@@ -136,5 +136,6 @@ PyInit_pixmaps()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module pixmaps");
+    return m;
 }
 

src/pyxforms/popups.c

@@ -379,5 +379,6 @@ PyInit_popups()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module popups");
+    return m;
 }
 

src/pyxforms/positioner.c

@@ -311,5 +311,6 @@ PyInit_positioner()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module positioner");
+    return m;
 }
 

src/pyxforms/slider.c

@@ -272,5 +272,6 @@ PyInit_slider()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module slider");
+    return m;
 }
 

src/pyxforms/text.c

@@ -91,5 +91,6 @@ PyInit_text()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module text");
+    return m;
 }
 

src/pyxforms/timer.c

@@ -132,5 +132,6 @@ PyInit_timer()
     /* Check for errors */
     if (PyErr_Occurred())
         Py_FatalError("can't initialize module timer");
+    return m;
 }
 

src/pyxforms/xforms.c

@@ -85,6 +85,6 @@ static struct PyModuleDef moduledef =
 PyMODINIT_FUNC
 PyInit_xforms()
 {
-    PyModule_Create(&moduledef);
+    return PyModule_Create(&moduledef);
 }
 

src/pyxforms/xyplot.c

@@ -448,4 +448,5 @@ PyInit_xyplot ()
     /* Check for errors */
     if (PyErr_Occurred ())
         Py_FatalError ("can't initialize module xyplot");
+    return m;
 }