Checking in IDLE 0.2.

Much has changed -- too much, in fact, to write down.
The big news is that there's a standard way to write IDLE extensions;
see extend.txt.  Some sample extensions have been provided, and
some existing code has been converted to extensions.  Probably the
biggest new user feature is a new search dialog with more options,
search and replace, and even search in files (grep).

This is exactly as downloaded from my laptop after returning
from the holidays -- it hasn't even been tested on Unix yet.

Tools/idle/WindowList.py

@@ -0,0 +1,53 @@
+from Tkinter import *
+
+class WindowList:
+
+    def __init__(self):
+        self.dict = {}
+
+    def add(self, window):
+        self.dict[str(window)] = window
+
+    def delete(self, window):
+        try:
+            del self.dict[str(window)]
+        except KeyError:
+            # Sometimes, destroy() is called twice
+            pass
+
+    def add_windows_to_menu(self,  menu):
+        list = []
+        for key in self.dict.keys():
+            window = self.dict[key]
+            title = window.get_title()
+            list.append((title, window))
+        list.sort()
+        for title, window in list:
+            if title == "Python Shell":
+                # Hack -- until we have a better way to this
+                continue
+            menu.add_command(label=title, command=window.wakeup)
+
+registry = WindowList()
+
+def add_windows_to_menu(menu):
+    registry.add_windows_to_menu(menu)
+
+class ListedToplevel(Toplevel):
+
+    def __init__(self, master, **kw):
+        Toplevel.__init__(self, master, kw)
+        registry.add(self)
+
+    def destroy(self):
+        registry.delete(self)
+        Toplevel.destroy(self)
+
+    def get_title(self):
+        # Subclass can override
+        return self.wm_title()
+
+    def wakeup(self):
+        self.tkraise()
+        self.wm_deiconify()
+        self.focus_set()