bpo-33987: IDLE - use ttk Frame for ttk widgets (GH-11395)

diff --git a/Lib/idlelib/autocomplete_w.py b/Lib/idlelib/autocomplete_w.py
index 9e0d336..7994bc0 100644
--- a/Lib/idlelib/autocomplete_w.py
+++ b/Lib/idlelib/autocomplete_w.py
@@ -4,7 +4,7 @@
 import platform
 
 from tkinter import *
-from tkinter.ttk import Scrollbar
+from tkinter.ttk import Frame, Scrollbar
 
 from idlelib.autocomplete import COMPLETE_FILES, COMPLETE_ATTRIBUTES
 from idlelib.multicall import MC_SHIFT
diff --git a/Lib/idlelib/config_key.py b/Lib/idlelib/config_key.py
index 21e84a9..4478323 100644
--- a/Lib/idlelib/config_key.py
+++ b/Lib/idlelib/config_key.py
@@ -2,7 +2,7 @@
 Dialog for building Tkinter accelerator key bindings
 """
 from tkinter import Toplevel, Listbox, Text, StringVar, TclError
-from tkinter.ttk import Button, Checkbutton, Entry, Frame, Label, Scrollbar
+from tkinter.ttk import Frame, Button, Checkbutton, Entry, Label, Scrollbar
 from tkinter import messagebox
 import string
 import sys
diff --git a/Lib/idlelib/configdialog.py b/Lib/idlelib/configdialog.py
index 229dc89..5fdaf82 100644
--- a/Lib/idlelib/configdialog.py
+++ b/Lib/idlelib/configdialog.py
@@ -14,7 +14,7 @@
                      TOP, BOTTOM, RIGHT, LEFT, SOLID, GROOVE,
                      NONE, BOTH, X, Y, W, E, EW, NS, NSEW, NW,
                      HORIZONTAL, VERTICAL, ANCHOR, ACTIVE, END)
-from tkinter.ttk import (Button, Checkbutton, Entry, Frame, Label, LabelFrame,
+from tkinter.ttk import (Frame, LabelFrame, Button, Checkbutton, Entry, Label,
                          OptionMenu, Notebook, Radiobutton, Scrollbar, Style)
 import tkinter.colorchooser as tkColorChooser
 import tkinter.font as tkFont
diff --git a/Lib/idlelib/debugger.py b/Lib/idlelib/debugger.py
index 09f912c..ccd03e4 100644
--- a/Lib/idlelib/debugger.py
+++ b/Lib/idlelib/debugger.py
@@ -2,7 +2,7 @@
 import os
 
 from tkinter import *
-from tkinter.ttk import Scrollbar
+from tkinter.ttk import Frame, Scrollbar
 
 from idlelib import macosx
 from idlelib.scrolledlist import ScrolledList
diff --git a/Lib/idlelib/grep.py b/Lib/idlelib/grep.py
index 8cc293c..873233e 100644
--- a/Lib/idlelib/grep.py
+++ b/Lib/idlelib/grep.py
@@ -8,7 +8,7 @@
 import sys
 
 from tkinter import StringVar, BooleanVar
-from tkinter.ttk import Checkbutton
+from tkinter.ttk import Checkbutton  # Frame imported in ...Base
 
 from idlelib.searchbase import SearchDialogBase
 from idlelib import searchengine
@@ -173,15 +173,18 @@
 
 def _grep_dialog(parent):  # htest #
     from tkinter import Toplevel, Text, SEL, END
-    from tkinter.ttk import Button
+    from tkinter.ttk import Frame, Button
     from idlelib.pyshell import PyShellFileList
+
     top = Toplevel(parent)
     top.title("Test GrepDialog")
     x, y = map(int, parent.geometry().split('+')[1:])
     top.geometry(f"+{x}+{y + 175}")
 
     flist = PyShellFileList(top)
-    text = Text(top, height=5)
+    frame = Frame(top)
+    frame.pack()
+    text = Text(frame, height=5)
     text.pack()
 
     def show_grep_dialog():
@@ -189,7 +192,7 @@
         grep(text, flist=flist)
         text.tag_remove(SEL, "1.0", END)
 
-    button = Button(top, text="Show GrepDialog", command=show_grep_dialog)
+    button = Button(frame, text="Show GrepDialog", command=show_grep_dialog)
     button.pack()
 
 if __name__ == "__main__":
diff --git a/Lib/idlelib/idle_test/test_searchbase.py b/Lib/idlelib/idle_test/test_searchbase.py
index 46c3ad1..09a7fff 100644
--- a/Lib/idlelib/idle_test/test_searchbase.py
+++ b/Lib/idlelib/idle_test/test_searchbase.py
@@ -4,7 +4,8 @@
 
 import unittest
 from test.support import requires
-from tkinter import Tk, Frame  ##, BooleanVar, StringVar
+from tkinter import Tk
+from tkinter.ttk import Frame
 from idlelib import searchengine as se
 from idlelib import searchbase as sdb
 from idlelib.idle_test.mock_idle import Func
@@ -97,11 +98,12 @@
         self.dialog.top = self.root
         frame, label = self.dialog.make_frame()
         self.assertEqual(label, '')
-        self.assertIsInstance(frame, Frame)
+        self.assertEqual(str(type(frame)), "<class 'tkinter.ttk.Frame'>")
+        # self.assertIsInstance(frame, Frame) fails when test is run by
+        # test_idle not run from IDLE editor.  See issue 33987 PR.
 
         frame, label = self.dialog.make_frame('testlabel')
         self.assertEqual(label['text'], 'testlabel')
-        self.assertIsInstance(frame, Frame)
 
     def btn_test_setup(self, meth):
         self.dialog.top = self.root
diff --git a/Lib/idlelib/query.py b/Lib/idlelib/query.py
index c2628cc..f0b7255 100644
--- a/Lib/idlelib/query.py
+++ b/Lib/idlelib/query.py
@@ -1,6 +1,5 @@
 """
 Dialogs that query users and verify the answer before accepting.
-Use ttk widgets, limiting use to tcl/tk 8.5+, as in IDLE 3.6+.
 
 Query is the generic base class for a popup dialog.
 The user must either enter a valid answer or close the dialog.
diff --git a/Lib/idlelib/replace.py b/Lib/idlelib/replace.py
index 83cf987..4a834eb 100644
--- a/Lib/idlelib/replace.py
+++ b/Lib/idlelib/replace.py
@@ -205,12 +205,12 @@
 
 def _replace_dialog(parent):  # htest #
     from tkinter import Toplevel, Text, END, SEL
-    from tkinter.ttk import Button
+    from tkinter.ttk import Frame, Button
 
-    box = Toplevel(parent)
-    box.title("Test ReplaceDialog")
+    top = Toplevel(parent)
+    top.title("Test ReplaceDialog")
     x, y = map(int, parent.geometry().split('+')[1:])
-    box.geometry("+%d+%d" % (x, y + 175))
+    top.geometry("+%d+%d" % (x, y + 175))
 
     # mock undo delegator methods
     def undo_block_start():
@@ -219,7 +219,9 @@
     def undo_block_stop():
         pass
 
-    text = Text(box, inactiveselectbackground='gray')
+    frame = Frame(top)
+    frame.pack()
+    text = Text(frame, inactiveselectbackground='gray')
     text.undo_block_start = undo_block_start
     text.undo_block_stop = undo_block_stop
     text.pack()
@@ -231,7 +233,7 @@
         replace(text)
         text.tag_remove(SEL, "1.0", END)
 
-    button = Button(box, text="Replace", command=show_replace)
+    button = Button(frame, text="Replace", command=show_replace)
     button.pack()
 
 if __name__ == '__main__':
diff --git a/Lib/idlelib/scrolledlist.py b/Lib/idlelib/scrolledlist.py
index 10229b6..71fd18a 100644
--- a/Lib/idlelib/scrolledlist.py
+++ b/Lib/idlelib/scrolledlist.py
@@ -1,5 +1,5 @@
 from tkinter import *
-from tkinter.ttk import Scrollbar
+from tkinter.ttk import Frame, Scrollbar
 
 from idlelib import macosx
 
diff --git a/Lib/idlelib/search.py b/Lib/idlelib/search.py
index 6223661..6e5a0c7 100644
--- a/Lib/idlelib/search.py
+++ b/Lib/idlelib/search.py
@@ -75,13 +75,16 @@
 def _search_dialog(parent):  # htest #
     "Display search test box."
     from tkinter import Toplevel, Text
-    from tkinter.ttk import Button
+    from tkinter.ttk import Frame, Button
 
-    box = Toplevel(parent)
-    box.title("Test SearchDialog")
+    top = Toplevel(parent)
+    top.title("Test SearchDialog")
     x, y = map(int, parent.geometry().split('+')[1:])
-    box.geometry("+%d+%d" % (x, y + 175))
-    text = Text(box, inactiveselectbackground='gray')
+    top.geometry("+%d+%d" % (x, y + 175))
+
+    frame = Frame(top)
+    frame.pack()
+    text = Text(frame, inactiveselectbackground='gray')
     text.pack()
     text.insert("insert","This is a sample string.\n"*5)
 
@@ -90,7 +93,7 @@
         _setup(text).open(text)
         text.tag_remove('sel', '1.0', 'end')
 
-    button = Button(box, text="Search (selection ignored)", command=show_find)
+    button = Button(frame, text="Search (selection ignored)", command=show_find)
     button.pack()
 
 if __name__ == '__main__':
diff --git a/Lib/idlelib/searchbase.py b/Lib/idlelib/searchbase.py
index 348db66..f0e3d6f 100644
--- a/Lib/idlelib/searchbase.py
+++ b/Lib/idlelib/searchbase.py
@@ -1,7 +1,7 @@
 '''Define SearchDialogBase used by Search, Replace, and Grep dialogs.'''
 
-from tkinter import Toplevel, Frame
-from tkinter.ttk import Entry, Label, Button, Checkbutton, Radiobutton
+from tkinter import Toplevel
+from tkinter.ttk import Frame, Entry, Label, Button, Checkbutton, Radiobutton
 
 
 class SearchDialogBase:
diff --git a/Lib/idlelib/tree.py b/Lib/idlelib/tree.py
index 05f8646..21426cb 100644
--- a/Lib/idlelib/tree.py
+++ b/Lib/idlelib/tree.py
@@ -17,7 +17,7 @@
 import os
 
 from tkinter import *
-from tkinter.ttk import Scrollbar
+from tkinter.ttk import Frame, Scrollbar
 
 from idlelib.config import idleConf
 from idlelib import zoomheight