diff --git a/7.3.584 b/7.3.584
new file mode 100644
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--- /dev/null
+++ b/7.3.584
@@ -0,0 +1,134 @@
+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.584
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.584
+Problem:    PyCObject is not always defined.
+Solution:   Use PyObject instead.
+Files:	    src/if_py_both.h, src/if_python.c
+
+
+*** ../vim-7.3.583/src/if_py_both.h	2012-06-29 17:51:58.000000000 +0200
+--- src/if_py_both.h	2012-06-30 13:25:24.000000000 +0200
+***************
+*** 2432,2463 ****
+  convert_dl(PyObject *obj, typval_T *tv,
+  				    pytotvfunc py_to_tv, PyObject *lookupDict)
+  {
+- # ifdef PY_USE_CAPSULE
+      PyObject	*capsule;
+- # else
+-     PyCObject	*cobject;
+- # endif
+      char	hexBuf[sizeof(void *) * 2 + 3];
+  
+      sprintf(hexBuf, "%p", obj);
+  
+  # ifdef PY_USE_CAPSULE
+      capsule = PyDict_GetItemString(lookupDict, hexBuf);
+-     if (capsule == NULL)
+  # else
+!     cobject = (PyCObject *)PyDict_GetItemString(lookupDict, hexBuf);
+!     if (cobject == NULL)
+  # endif
+      {
+  # ifdef PY_USE_CAPSULE
+  	capsule = PyCapsule_New(tv, NULL, NULL);
+- 	PyDict_SetItemString(lookupDict, hexBuf, capsule);
+- 	Py_DECREF(capsule);
+  # else
+! 	cobject = PyCObject_FromVoidPtr(tv, NULL);
+! 	PyDict_SetItemString(lookupDict, hexBuf, cobject);
+! 	Py_DECREF(cobject);
+  # endif
+  	if (py_to_tv(obj, tv, lookupDict) == -1)
+  	{
+  	    tv->v_type = VAR_UNKNOWN;
+--- 2432,2456 ----
+  convert_dl(PyObject *obj, typval_T *tv,
+  				    pytotvfunc py_to_tv, PyObject *lookupDict)
+  {
+      PyObject	*capsule;
+      char	hexBuf[sizeof(void *) * 2 + 3];
+  
+      sprintf(hexBuf, "%p", obj);
+  
+  # ifdef PY_USE_CAPSULE
+      capsule = PyDict_GetItemString(lookupDict, hexBuf);
+  # else
+!     capsule = (PyObject *)PyDict_GetItemString(lookupDict, hexBuf);
+  # endif
++     if (capsule == NULL)
+      {
+  # ifdef PY_USE_CAPSULE
+  	capsule = PyCapsule_New(tv, NULL, NULL);
+  # else
+! 	capsule = PyCObject_FromVoidPtr(tv, NULL);
+  # endif
++ 	PyDict_SetItemString(lookupDict, hexBuf, capsule);
++ 	Py_DECREF(capsule);
+  	if (py_to_tv(obj, tv, lookupDict) == -1)
+  	{
+  	    tv->v_type = VAR_UNKNOWN;
+***************
+*** 2478,2484 ****
+  # ifdef PY_USE_CAPSULE
+  	v = PyCapsule_GetPointer(capsule, NULL);
+  # else
+! 	v = PyCObject_AsVoidPtr(cobject);
+  # endif
+  	copy_tv(v, tv);
+      }
+--- 2471,2477 ----
+  # ifdef PY_USE_CAPSULE
+  	v = PyCapsule_GetPointer(capsule, NULL);
+  # else
+! 	v = PyCObject_AsVoidPtr(capsule);
+  # endif
+  	copy_tv(v, tv);
+      }
+*** ../vim-7.3.583/src/if_python.c	2012-06-30 13:21:03.000000000 +0200
+--- src/if_python.c	2012-06-30 13:23:22.000000000 +0200
+***************
+*** 327,334 ****
+  static PyObject* (*dll_PyCapsule_New)(void *, char *, PyCapsule_Destructor);
+  static void* (*dll_PyCapsule_GetPointer)(PyObject *, char *);
+  # else
+! static PyCObject* (*dll_PyCObject_FromVoidPtr)(void *cobj, void (*destr)(void *));
+! static void* (*dll_PyCObject_AsVoidPtr)(PyCObject *);
+  # endif
+  
+  static HINSTANCE hinstPython = 0; /* Instance of python.dll */
+--- 327,334 ----
+  static PyObject* (*dll_PyCapsule_New)(void *, char *, PyCapsule_Destructor);
+  static void* (*dll_PyCapsule_GetPointer)(PyObject *, char *);
+  # else
+! static PyObject* (*dll_PyCObject_FromVoidPtr)(void *cobj, void (*destr)(void *));
+! static void* (*dll_PyCObject_AsVoidPtr)(PyObject *);
+  # endif
+  
+  static HINSTANCE hinstPython = 0; /* Instance of python.dll */
+*** ../vim-7.3.583/src/version.c	2012-06-30 13:21:03.000000000 +0200
+--- src/version.c	2012-06-30 13:33:08.000000000 +0200
+***************
+*** 716,717 ****
+--- 716,719 ----
+  {   /* Add new patch number below this line */
++ /**/
++     584,
+  /**/
+
+-- 
+hundred-and-one symptoms of being an internet addict:
+91. It's Saturday afternoon in the middle of May and you
+    are on computer.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\  an exciting new programming language -- http://www.Zimbu.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///