updated for version 7.3.1047
Problem:    Python: dir() does not work properly.
Solution:   Python patch 8.  Add __dir__ method to all objects with custom
            tp_getattr supplemented by __members__ attribute for at least
            python-2* versions.  __members__ is not mentioned in python-3*
            dir() output even if it is accessible. (ZyX)
diff --git a/src/testdir/test86.ok b/src/testdir/test86.ok
index efa8001..f44ebf7 100644
--- a/src/testdir/test86.ok
+++ b/src/testdir/test86.ok
@@ -382,6 +382,15 @@
 vim.current.range:Range:True
 vim.current.window:Window:True
 vim.current.tabpage:TabPage:True
+current:__dir__,__members__,buffer,line,range,tabpage,window
+buffer:__dir__,__members__,append,mark,name,number,options,range,valid,vars
+window:__dir__,__members__,buffer,col,cursor,height,number,options,row,tabpage,valid,vars
+tabpage:__dir__,__members__,number,valid,vars,window,windows
+range:__dir__,__members__,append,end,start
+dictionary:__dir__,__members__,keys,locked,scope
+list:__dir__,__members__,extend,locked
+function:__call__,__dir__,__members__,softspace
+output:__dir__,__members__,flush,softspace,write,writelines
 (<class 'vim.error'>, error('abc',))
 (<class 'vim.error'>, error('def',))
 (<class 'vim.error'>, error('ghi',))