diff --git a/7.3.654 b/7.3.654
new file mode 100644
index 0000000..dca5aa7
--- /dev/null
+++ b/7.3.654
@@ -0,0 +1,150 @@
+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.654
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.654
+Problem:    When creating a Vim dictionary from Python objects an empty key
+	    might be used.
+Solution:   Do not use empty keys, throw an IndexError. (ZyX)
+Files:	    src/if_py_both.h
+
+
+*** ../vim-7.3.653/src/if_py_both.h	2012-09-05 17:28:08.000000000 +0200
+--- src/if_py_both.h	2012-09-05 18:35:18.000000000 +0200
+***************
+*** 607,612 ****
+--- 607,620 ----
+  
+  static PyTypeObject DictionaryType;
+  
++ #define DICTKEY_GET_NOTEMPTY(err) \
++     DICTKEY_GET(err) \
++     if (*key == NUL) \
++     { \
++ 	PyErr_SetString(PyExc_ValueError, _("empty keys are not allowed")); \
++ 	return err; \
++     }
++ 
+  typedef struct
+  {
+      PyObject_HEAD
+***************
+*** 659,665 ****
+  	if (valObject == NULL)
+  	    return -1;
+  
+! 	DICTKEY_GET(-1)
+  
+  	di = dictitem_alloc(key);
+  
+--- 667,673 ----
+  	if (valObject == NULL)
+  	    return -1;
+  
+! 	DICTKEY_GET_NOTEMPTY(-1)
+  
+  	di = dictitem_alloc(key);
+  
+***************
+*** 730,736 ****
+  	    return -1;
+  	}
+  
+! 	DICTKEY_GET(-1)
+  
+  	valObject = PyTuple_GetItem(litem, 1);
+  	if (valObject == NULL)
+--- 738,744 ----
+  	    return -1;
+  	}
+  
+! 	DICTKEY_GET_NOTEMPTY(-1)
+  
+  	valObject = PyTuple_GetItem(litem, 1);
+  	if (valObject == NULL)
+***************
+*** 784,799 ****
+  DictionaryItem(PyObject *self, PyObject *keyObject)
+  {
+      char_u	*key;
+!     dictitem_T	*val;
+      DICTKEY_DECL
+  
+!     DICTKEY_GET(NULL)
+  
+!     val = dict_find(((DictionaryObject *) (self))->dict, key, -1);
+  
+      DICTKEY_UNREF
+  
+!     return ConvertToPyObject(&val->di_tv);
+  }
+  
+      static PyInt
+--- 792,813 ----
+  DictionaryItem(PyObject *self, PyObject *keyObject)
+  {
+      char_u	*key;
+!     dictitem_T	*di;
+      DICTKEY_DECL
+  
+!     DICTKEY_GET_NOTEMPTY(NULL)
+! 
+!     di = dict_find(((DictionaryObject *) (self))->dict, key, -1);
+  
+!     if (di == NULL)
+!     {
+! 	PyErr_SetString(PyExc_IndexError, _("no such key in dictionary"));
+! 	return NULL;
+!     }
+  
+      DICTKEY_UNREF
+  
+!     return ConvertToPyObject(&di->di_tv);
+  }
+  
+      static PyInt
+***************
+*** 811,817 ****
+  	return -1;
+      }
+  
+!     DICTKEY_GET(-1)
+  
+      di = dict_find(d, key, -1);
+  
+--- 825,831 ----
+  	return -1;
+      }
+  
+!     DICTKEY_GET_NOTEMPTY(-1)
+  
+      di = dict_find(d, key, -1);
+  
+*** ../vim-7.3.653/src/version.c	2012-09-05 17:57:34.000000000 +0200
+--- src/version.c	2012-09-05 18:38:43.000000000 +0200
+***************
+*** 721,722 ****
+--- 721,724 ----
+  {   /* Add new patch number below this line */
++ /**/
++     654,
+  /**/
+
+-- 
+MORTICIAN:    What?
+CUSTOMER:     Nothing -- here's your nine pence.
+DEAD PERSON:  I'm not dead!
+MORTICIAN:    Here -- he says he's not dead!
+CUSTOMER:     Yes, he is.
+DEAD PERSON:  I'm not!
+                                  The Quest for the Holy Grail (Monty Python)
+
+ /// 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    ///