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/test87.ok b/src/testdir/test87.ok
index c04d220..3b39c18 100644
--- a/src/testdir/test87.ok
+++ b/src/testdir/test87.ok
@@ -371,6 +371,15 @@
 vim.current.range:Range:True
 vim.current.window:Window:True
 vim.current.tabpage:TabPage:True
+current:__dir__,buffer,line,range,tabpage,window
+buffer:__dir__,append,mark,name,number,options,range,valid,vars
+window:__dir__,buffer,col,cursor,height,number,options,row,tabpage,valid,vars
+tabpage:__dir__,number,valid,vars,window,windows
+range:__dir__,append,end,start
+dictionary:__dir__,keys,locked,scope
+list:__dir__,extend,locked
+function:__call__,__dir__,softspace
+output:__dir__,flush,softspace,write,writelines
 (<class 'vim.error'>, error('abc',))
 (<class 'vim.error'>, error('def',))
 (<class 'vim.error'>, error('ghi',))