updated for version 7.3.1044
Problem:    Python: No {Buffer,TabPage,Window}.valid attributes.
Solution:   Python patch 5: add .valid (ZyX)
diff --git a/src/testdir/test86.ok b/src/testdir/test86.ok
index 1d3e81a..efa8001 100644
--- a/src/testdir/test86.ok
+++ b/src/testdir/test86.ok
@@ -328,6 +328,7 @@
 1:BufFilePre:1
 7:BufFilePost:1
 testdir/test86.in
+valid: b:False, cb:True
 i:<buffer test86.in>
 i2:<buffer test86.in>
 i:<buffer a>
@@ -344,7 +345,7 @@
 Current tab pages:
   <tabpage 0>(1): 1 windows, current is <window object (unknown)>
   Windows:
-    <window object (unknown)>(1): displays buffer <buffer test86.in>; cursor is at (36, 0)
+    <window object (unknown)>(1): displays buffer <buffer test86.in>; cursor is at (37, 0)
   <tabpage 1>(2): 1 windows, current is <window object (unknown)>
   Windows:
     <window object (unknown)>(1): displays buffer <buffer 0>; cursor is at (1, 0)
@@ -370,6 +371,8 @@
 Current window: <window 0>
 Current buffer: <buffer test86.in>
 Current line: 'Type error at assigning None to vim.current.buffer'
+w.valid: [True, False]
+t.valid: [True, False, True, False]
 vim.vars:Dictionary:True
 vim.options:Options:True
 vim.bindeval("{}"):Dictionary:True