Merge.

Lib/idlelib/tabbedpages.py

@@ -78,7 +78,7 @@ class TabSet(Frame):
     def remove_tab(self, tab_name):
         """Remove the tab named <tab_name>"""
         if not tab_name in self._tab_names:
-            raise KeyError("No such Tab: '%s" % page_name)
+            raise KeyError("No such Tab: '%s" % tab_name)
 
         self._tab_names.remove(tab_name)
         self._arrange_tabs()
@@ -88,7 +88,7 @@ class TabSet(Frame):
         if tab_name == self._selected_tab:
             return
         if tab_name is not None and tab_name not in self._tabs:
-            raise KeyError("No such Tab: '%s" % page_name)
+            raise KeyError("No such Tab: '%s" % tab_name)
 
         # deselect the current selected tab
         if self._selected_tab is not None:

Misc/NEWS

@@ -19,6 +19,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #14496: Fix wrong name in idlelib/tabbedpages.py.
+  Patch by Popa Claudiu.
+
 - Issue #3033: Add displayof parameter to tkinter font. Patch by Guilherme Polo.
 
 - Issue #14482: Raise a ValueError, not a NameError, when trying to create