updated for version 7.3.584
Problem:    PyCObject is not always defined.
Solution:   Use PyObject instead.
diff --git a/src/version.c b/src/version.c
index f9d2eda..526669d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    584,
+/**/
     583,
 /**/
     582,