updated for version 7.4.424
Problem:    Get ml_get error when using Python to delete lines in a buffer
            that is not in a window.  issue 248.
Solution:   Do not try adjusting the cursor for a different buffer.
diff --git a/src/if_py_both.h b/src/if_py_both.h
index bf5ea4c..5044afb 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -4196,7 +4196,9 @@
 		    break;
 		}
 	    }
-	    if (buf == curbuf)
+	    if (buf == curbuf && (save_curwin != NULL || save_curbuf == NULL))
+		/* Using an existing window for the buffer, adjust the cursor
+		 * position. */
 		py_fix_cursor((linenr_T)lo, (linenr_T)hi, (linenr_T)-n);
 	    if (save_curbuf == NULL)
 		/* Only adjust marks if we managed to switch to a window that