Issue #26778: Fixed "a/an/and" typos in code comment and documentation.
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index d8d5b80..7944819 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -2778,7 +2778,7 @@
                     self.deletecommand(c)
         self.tk.call(self._w, 'delete', index1, index2)
     def entrycget(self, index, option):
-        """Return the resource value of an menu item for OPTION at INDEX."""
+        """Return the resource value of a menu item for OPTION at INDEX."""
         return self.tk.call(self._w, 'entrycget', index, '-' + option)
     def entryconfigure(self, index, cnf=None, **kw):
         """Configure a menu item at INDEX."""