diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index aff8c3ed5d2b15..a0e77095658a4d 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -1981,7 +1981,7 @@ Base and mixin classes
 
    .. method:: winfo_exists()
 
-      Return ``1`` if the widget exists, ``0`` otherwise.
+      Return true if the widget exists, false otherwise.
 
    .. method:: winfo_fpixels(number)
 
@@ -2020,7 +2020,7 @@ Base and mixin classes
 
    .. method:: winfo_ismapped()
 
-      Return ``1`` if the widget is currently mapped, ``0`` otherwise.
+      Return true if the widget is currently mapped, false otherwise.
 
    .. method:: winfo_manager()
 
@@ -2151,8 +2151,8 @@ Base and mixin classes
 
    .. method:: winfo_viewable()
 
-      Return ``1`` if the widget and all of its ancestors up through the
-      nearest toplevel window are mapped, ``0`` otherwise.
+      Return true if the widget and all of its ancestors up through the
+      nearest toplevel window are mapped, false otherwise.
 
    .. method:: winfo_visual()
 
@@ -5526,7 +5526,7 @@ Widget classes
    .. method:: edit_modified(arg=None)
 
       If *arg* is omitted, return the current state of the modified flag as
-      ``0`` or ``1``; the flag is set automatically whenever the text is
+      true or false; the flag is set automatically whenever the text is
       inserted or deleted.
       Otherwise set the flag to the boolean *arg*.
 
diff --git a/Lib/test/test_tkinter/test_images.py b/Lib/test/test_tkinter/test_images.py
index fbc478b45172d5..eb5794d391e758 100644
--- a/Lib/test/test_tkinter/test_images.py
+++ b/Lib/test/test_tkinter/test_images.py
@@ -647,12 +647,12 @@ def test_data(self):
 
     def test_transparency(self):
         image = self.create()
-        self.assertEqual(image.transparency_get(0, 0), True)
-        self.assertEqual(image.transparency_get(4, 6), False)
+        self.assertIs(image.transparency_get(0, 0), True)
+        self.assertIs(image.transparency_get(4, 6), False)
         image.transparency_set(4, 6, True)
-        self.assertEqual(image.transparency_get(4, 6), True)
+        self.assertIs(image.transparency_get(4, 6), True)
         image.transparency_set(4, 6, False)
-        self.assertEqual(image.transparency_get(4, 6), False)
+        self.assertIs(image.transparency_get(4, 6), False)
         self.assertRaises(tkinter.TclError, image.transparency_get, -1, 0)
         self.assertRaises(tkinter.TclError, image.transparency_get, 16, 0)
         self.assertRaises(tkinter.TclError, image.transparency_set, -1, 0, True)
diff --git a/Lib/test/test_tkinter/test_text.py b/Lib/test/test_tkinter/test_text.py
index 8177750b3ba332..acbee1acad633e 100644
--- a/Lib/test/test_tkinter/test_text.py
+++ b/Lib/test/test_tkinter/test_text.py
@@ -18,10 +18,10 @@ def test_debug(self):
         text = self.text
         olddebug = text.debug()
         try:
-            text.debug(0)
-            self.assertEqual(text.debug(), 0)
-            text.debug(1)
-            self.assertEqual(text.debug(), 1)
+            text.debug(False)
+            self.assertIs(text.debug(), False)
+            text.debug(True)
+            self.assertIs(text.debug(), True)
         finally:
             text.debug(olddebug)
             self.assertEqual(text.debug(), olddebug)
diff --git a/Lib/test/test_ttk/test_widgets.py b/Lib/test/test_ttk/test_widgets.py
index f134f88aedf6cb..c7a87dad43f142 100644
--- a/Lib/test/test_ttk/test_widgets.py
+++ b/Lib/test/test_ttk/test_widgets.py
@@ -1650,9 +1650,9 @@ def test_detach_reattach(self):
         self.assertEqual(self.tv.get_children(item_id), ())
 
     def test_exists(self):
-        self.assertEqual(self.tv.exists('something'), False)
-        self.assertEqual(self.tv.exists(''), True)
-        self.assertEqual(self.tv.exists({}), False)
+        self.assertIs(self.tv.exists('something'), False)
+        self.assertIs(self.tv.exists(''), True)
+        self.assertIs(self.tv.exists({}), False)
 
         # the following will make a tk.call equivalent to
         # tk.call(treeview, "exists") which should result in an error
diff --git a/Lib/tkinter/ttk.py b/Lib/tkinter/ttk.py
index 3233c8973a8078..9d34e1fd8e7361 100644
--- a/Lib/tkinter/ttk.py
+++ b/Lib/tkinter/ttk.py
@@ -1483,8 +1483,8 @@ def tag_configure(self, tagname, option=None, **kw):
 
 
     def tag_has(self, tagname, item=None):
-        """If item is specified, returns 1 or 0 depending on whether the
-        specified item has the given tagname. Otherwise, returns a list of
+        """If item is specified, returns True if the specified item has the
+        given tagname, False otherwise. Otherwise, returns a list of
         all items which have the specified tag.
 
         * Availability: Tk 8.6"""