Apply two changes, systematically: (1) Use PyErr_NewException("module.class", NULL, NULL) to create the exception object. (2) Remove all calls to Py_FatalError(); instead, return or ignore the errors -- the import code now checks PyErr_Occurred() after calling a module's init function, so it's no longer a fatal error for the initialization to fail. Also did some small cleanups, e.g. removed unnecessary test for "already initialized" from initfpectl(), and unified initposix()/initnt(). I haven't checked this very thoroughly, so while the changes are pretty trivial -- beware of untested code!

--- a/Modules/threadmodule.c	Tue Sep 30 22:14:39 1997 +0000
+++ b/Modules/threadmodule.c	Wed Oct 01 04:29:29 1997 +0000
@@ -356,13 +356,9 @@
 
 	/* Add a symbolic constant */
 	d = PyModule_GetDict(m);
-	ThreadError = PyString_FromString("thread.error");
+	ThreadError = PyErr_NewException("thread.error", NULL, NULL);
 	PyDict_SetItemString(d, "error", ThreadError);
 
-	/* Check for errors */
-	if (PyErr_Occurred())
-		Py_FatalError("can't initialize module thread");
-
 	/* Initialize the C thread library */
 	init_thread();
 }