diff --git a/7.3.656 b/7.3.656
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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.656
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.656
+Problem:    Internal error in :pyeval.
+Solution:   Handle failed object conversion. (ZyX)
+Files:	    src/if_python.c, src/if_python3.c
+
+
+*** ../vim-7.3.655/src/if_python.c	2012-06-30 13:34:29.000000000 +0200
+--- src/if_python.c	2012-09-05 18:52:50.000000000 +0200
+***************
+*** 1025,1032 ****
+  
+  static PySequenceMethods BufferAsSeq = {
+      (PyInquiry)		BufferLength,	    /* sq_length,    len(x)   */
+!     (binaryfunc)	0, /* BufferConcat, */	     /* sq_concat,    x+y      */
+!     (PyIntArgFunc)	0, /* BufferRepeat, */	     /* sq_repeat,    x*n      */
+      (PyIntArgFunc)	BufferItem,	    /* sq_item,      x[i]     */
+      (PyIntIntArgFunc)	BufferSlice,	    /* sq_slice,     x[i:j]   */
+      (PyIntObjArgProc)	BufferAssItem,	    /* sq_ass_item,  x[i]=v   */
+--- 1025,1032 ----
+  
+  static PySequenceMethods BufferAsSeq = {
+      (PyInquiry)		BufferLength,	    /* sq_length,    len(x)   */
+!     (binaryfunc)	0,		    /* BufferConcat, sq_concat, x+y */
+!     (PyIntArgFunc)	0,		    /* BufferRepeat, sq_repeat, x*n */
+      (PyIntArgFunc)	BufferItem,	    /* sq_item,      x[i]     */
+      (PyIntIntArgFunc)	BufferSlice,	    /* sq_slice,     x[i:j]   */
+      (PyIntObjArgProc)	BufferAssItem,	    /* sq_ass_item,  x[i]=v   */
+***************
+*** 1787,1792 ****
+--- 1787,1796 ----
+  	case VAR_DICT: ++rettv->vval.v_dict->dv_refcount; break;
+  	case VAR_LIST: ++rettv->vval.v_list->lv_refcount; break;
+  	case VAR_FUNC: func_ref(rettv->vval.v_string);    break;
++ 	case VAR_UNKNOWN:
++ 	    rettv->v_type = VAR_NUMBER;
++ 	    rettv->vval.v_number = 0;
++ 	    break;
+      }
+  }
+  
+*** ../vim-7.3.655/src/if_python3.c	2012-06-29 16:28:23.000000000 +0200
+--- src/if_python3.c	2012-09-05 18:52:50.000000000 +0200
+***************
+*** 1817,1822 ****
+--- 1817,1826 ----
+  	case VAR_DICT: ++rettv->vval.v_dict->dv_refcount; break;
+  	case VAR_LIST: ++rettv->vval.v_list->lv_refcount; break;
+  	case VAR_FUNC: func_ref(rettv->vval.v_string);    break;
++ 	case VAR_UNKNOWN:
++ 	    rettv->v_type = VAR_NUMBER;
++ 	    rettv->vval.v_number = 0;
++ 	    break;
+      }
+  }
+  
+*** ../vim-7.3.655/src/version.c	2012-09-05 18:48:22.000000000 +0200
+--- src/version.c	2012-09-05 18:53:20.000000000 +0200
+***************
+*** 721,722 ****
+--- 721,724 ----
+  {   /* Add new patch number below this line */
++ /**/
++     656,
+  /**/
+
+-- 
+DEAD PERSON:  I'm getting better!
+CUSTOMER:     No, you're not -- you'll be stone dead in a moment.
+MORTICIAN:    Oh, I can't take him like that -- it's against regulations.
+                                  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    ///