This reverts r63675 based on the discussion in this thread:

 http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
diff --git a/Modules/_curses_panel.c b/Modules/_curses_panel.c
index 6b618ac..6831473 100644
--- a/Modules/_curses_panel.c
+++ b/Modules/_curses_panel.c
@@ -472,7 +472,7 @@
     PyDict_SetItemString(d, "error", PyCursesError);
 
     /* Make the version available */
-    v = PyBytes_FromString(PyCursesVersion);
+    v = PyString_FromString(PyCursesVersion);
     PyDict_SetItemString(d, "version", v);
     PyDict_SetItemString(d, "__version__", v);
     Py_DECREF(v);