Spelling and grammar fixes in code comments and documentation
diff --git a/Lib/lib-tk/ttk.py b/Lib/lib-tk/ttk.py
index 3f6f79b..1125439 100644
--- a/Lib/lib-tk/ttk.py
+++ b/Lib/lib-tk/ttk.py
@@ -153,7 +153,7 @@
 
 def _format_layoutlist(layout, indent=0, indent_size=2):
     """Formats a layout list so we can pass the result to ttk::style
-    layout and ttk::style settings. Note that the layout doesn't has to
+    layout and ttk::style settings. Note that the layout doesn't have to
     be a list necessarily.
 
     E.g.: