Issue #20072: Fixed multiple errors in tkinter with wantobjects is False.

* Misc.image_names(), Misc.image_types(), Wm.wm_colormapwindows(), and
  LabelFrame.panes() now always return a tuple.
* Fixed error of comparing str and int in tt.LabeledScale._adjust().
* ttk.Notebook.index() now always returns int.
* ttk.Notebook.tabs() now always returns a tuple.
* ttk.Entry.bbox() now always returns a tuple of ints.
* ttk.Entry.validate() now always correctly works.
* ttk.Combobox.current() now always returns int.
* ttk.Panedwindow.sashpos() now always returns int.
* ttk.Treeview.bbox() now always returns a tuple of ints.
* ttk.Treeview.get_children() now always returns a tuple.
* ttk.Treeview.exists() now always correctly works.
* ttk.Treeview.index() now always returns int.
* ttk.Treeview.tag_has() now always returns 0 or 1.
* And numerous other errors in methods which returns a tuple, list or dict.
* Fixed ttk tests for wantobjects is False.

Lib/tkinter/__init__.py

@@ -1459,11 +1459,11 @@ class Misc:
 
     def image_names(self):
         """Return a list of all existing image names."""
-        return self.tk.call('image', 'names')
+        return self.tk.splitlist(self.tk.call('image', 'names'))
 
     def image_types(self):
         """Return a list of all available image types (e.g. phote bitmap)."""
-        return self.tk.call('image', 'types')
+        return self.tk.splitlist(self.tk.call('image', 'types'))
 
 
 class CallWrapper:
@@ -1577,7 +1577,11 @@ class Wm:
         if len(wlist) > 1:
             wlist = (wlist,) # Tk needs a list of windows here
         args = ('wm', 'colormapwindows', self._w) + wlist
-        return [self._nametowidget(x) for x in  self.tk.call(args)]
+        if wlist:
+            self.tk.call(args)
+        else:
+            return [self._nametowidget(x)
+                    for x in self.tk.splitlist(self.tk.call(args))]
     colormapwindows = wm_colormapwindows
     def wm_command(self, value=None):
         """Store VALUE in WM_COMMAND property. It is the command
@@ -3472,8 +3476,11 @@ class BitmapImage(Image):
         Valid resource names: background, data, file, foreground, maskdata, maskfile."""
         Image.__init__(self, 'bitmap', name, cnf, master, **kw)
 
-def image_names(): return _default_root.tk.call('image', 'names')
-def image_types(): return _default_root.tk.call('image', 'types')
+def image_names():
+    return _default_root.tk.splitlist(_default_root.tk.call('image', 'names'))
+
+def image_types():
+    return _default_root.tk.splitlist(_default_root.tk.call('image', 'types'))
 
 
 class Spinbox(Widget, XView):
@@ -3842,7 +3849,7 @@ class PanedWindow(Widget):
 
     def panes(self):
         """Returns an ordered list of the child panes."""
-        return self.tk.call(self._w, 'panes')
+        return self.tk.splitlist(self.tk.call(self._w, 'panes'))
 
 ######################################################################
 # Extensions:

Lib/tkinter/test/test_ttk/test_extensions.py

@@ -29,7 +29,10 @@ class LabeledScaleTest(unittest.TestCase):
         name = myvar._name
         x = ttk.LabeledScale(variable=myvar)
         x.destroy()
-        self.assertEqual(x.tk.globalgetvar(name), myvar.get())
+        if x.tk.wantobjects():
+            self.assertEqual(x.tk.globalgetvar(name), myvar.get())
+        else:
+            self.assertEqual(float(x.tk.globalgetvar(name)), myvar.get())
         del myvar
         self.assertRaises(tkinter.TclError, x.tk.globalgetvar, name)
 
@@ -59,8 +62,10 @@ class LabeledScaleTest(unittest.TestCase):
         x.destroy()
 
         # variable initialization/passing
-        passed_expected = ((2.5, 2), ('0', 0), (0, 0), (10, 10),
+        passed_expected = (('0', 0), (0, 0), (10, 10),
             (-1, -1), (sys.maxsize + 1, sys.maxsize + 1))
+        if x.tk.wantobjects():
+            passed_expected += ((2.5, 2),)
         for pair in passed_expected:
             x = ttk.LabeledScale(from_=pair[0])
             self.assertEqual(x.value, pair[1])
@@ -123,7 +128,7 @@ class LabeledScaleTest(unittest.TestCase):
         self.assertNotEqual(prev_xcoord, curr_xcoord)
         # the label widget should have been repositioned too
         linfo_2 = lscale.label.place_info()
-        self.assertEqual(lscale.label['text'], 0)
+        self.assertEqual(lscale.label['text'], 0 if lscale.tk.wantobjects() else '0')
         self.assertEqual(curr_xcoord, int(linfo_2['x']))
         # change the range back
         lscale.scale.configure(from_=0, to=10)
@@ -145,15 +150,20 @@ class LabeledScaleTest(unittest.TestCase):
         # The following update is needed since the test doesn't use mainloop,
         # at the same time this shouldn't affect test outcome
         x.update()
-        self.assertEqual(x.label['text'], newval)
+        self.assertEqual(x.label['text'],
+                         newval if x.tk.wantobjects() else str(newval))
         self.assertGreater(x.scale.coords()[0], curr_xcoord)
         self.assertEqual(x.scale.coords()[0],
             int(x.label.place_info()['x']))
 
         # value outside range
-        x.value = x.scale['to'] + 1 # no changes shouldn't happen
+        if x.tk.wantobjects():
+            conv = lambda x: x
+        else:
+            conv = int
+        x.value = conv(x.scale['to']) + 1 # no changes shouldn't happen
         x.update()
-        self.assertEqual(x.label['text'], newval)
+        self.assertEqual(conv(x.label['text']), newval)
         self.assertEqual(x.scale.coords()[0],
             int(x.label.place_info()['x']))
 

Lib/tkinter/test/test_ttk/test_functions.py

@@ -393,8 +393,10 @@ class InternalFunctionsTest(unittest.TestCase):
             ('name', 'no_minus', 'value'))
         self.assertRaises(ValueError, ttk._list_from_layouttuple,
             ('something', '-children')) # no children
-        self.assertRaises(ValueError, ttk._list_from_layouttuple,
-            ('something', '-children', 'value')) # invalid children
+        import tkinter
+        if not tkinter._default_root or tkinter._default_root.wantobjects():
+            self.assertRaises(ValueError, ttk._list_from_layouttuple,
+                ('something', '-children', 'value')) # invalid children
 
 
     def test_val_or_dict(self):

Lib/tkinter/test/test_ttk/test_style.py

@@ -25,7 +25,8 @@ class StyleTest(unittest.TestCase):
         style = self.style
         style.map('TButton', background=[('active', 'background', 'blue')])
         self.assertEqual(style.map('TButton', 'background'),
-            [('active', 'background', 'blue')])
+            [('active', 'background', 'blue')] if style.tk.wantobjects() else
+            [('active background', 'blue')])
         self.assertIsInstance(style.map('TButton'), dict)
 
 

Lib/tkinter/ttk.py

@@ -293,6 +293,9 @@ def _list_from_layouttuple(ltuple):
             indx += 2
 
             if opt == 'children':
+                if (tkinter._default_root and
+                    not tkinter._default_root.wantobjects()):
+                    val = tkinter._default_root.splitlist(val)
                 val = _list_from_layouttuple(val)
 
             opts[opt] = val
@@ -313,6 +316,8 @@ def _val_or_dict(options, func, *args):
     if len(options) % 2: # option specified without a value, return its value
         return res
 
+    if tkinter._default_root:
+        res = tkinter._default_root.splitlist(res)
     return _dict_from_tcltuple(res)
 
 def _convert_stringval(value):
@@ -325,6 +330,14 @@ def _convert_stringval(value):
 
     return value
 
+def _to_number(x):
+    if isinstance(x, str):
+        if '.' in x:
+            x = float(x)
+        else:
+            x = int(x)
+    return x
+
 def tclobjs_to_py(adict):
     """Returns adict with its values converted from Tcl objects to Python
     objects."""
@@ -395,8 +408,8 @@ class Style(object):
         or something else of your preference. A statespec is compound of
         one or more states and then a value."""
         if query_opt is not None:
-            return _list_from_statespec(
-                self.tk.call(self._name, "map", style, '-%s' % query_opt))
+            return _list_from_statespec(self.tk.splitlist(
+                self.tk.call(self._name, "map", style, '-%s' % query_opt)))
 
         return _dict_from_tcltuple(
             self.tk.call(self._name, "map", style, *(_format_mapdict(kw))))
@@ -453,8 +466,8 @@ class Style(object):
             lspec = "null" # could be any other word, but this may make sense
                            # when calling layout(style) later
 
-        return _list_from_layouttuple(
-            self.tk.call(self._name, "layout", style, lspec))
+        return _list_from_layouttuple(self.tk.splitlist(
+            self.tk.call(self._name, "layout", style, lspec)))
 
 
     def element_create(self, elementname, etype, *args, **kw):
@@ -466,12 +479,12 @@ class Style(object):
 
     def element_names(self):
         """Returns the list of elements defined in the current theme."""
-        return self.tk.call(self._name, "element", "names")
+        return self.tk.splitlist(self.tk.call(self._name, "element", "names"))
 
 
     def element_options(self, elementname):
         """Return the list of elementname's options."""
-        return self.tk.call(self._name, "element", "options", elementname)
+        return self.tk.splitlist(self.tk.call(self._name, "element", "options", elementname))
 
 
     def theme_create(self, themename, parent=None, settings=None):
@@ -505,7 +518,7 @@ class Style(object):
 
     def theme_names(self):
         """Returns a list of all known themes."""
-        return self.tk.call(self._name, "theme", "names")
+        return self.tk.splitlist(self.tk.call(self._name, "theme", "names"))
 
 
     def theme_use(self, themename=None):
@@ -568,7 +581,8 @@ class Widget(tkinter.Widget):
         matches statespec and False otherwise. If callback is specified,
         then it will be invoked with *args, **kw if the widget state
         matches statespec. statespec is expected to be a sequence."""
-        ret = self.tk.call(self._w, "instate", ' '.join(statespec))
+        ret = self.tk.getboolean(
+                self.tk.call(self._w, "instate", ' '.join(statespec)))
         if ret and callback:
             return callback(*args, **kw)
 
@@ -667,7 +681,7 @@ class Entry(Widget, tkinter.Entry):
     def bbox(self, index):
         """Return a tuple of (x, y, width, height) which describes the
         bounding box of the character given by index."""
-        return self.tk.call(self._w, "bbox", index)
+        return self._getints(self.tk.call(self._w, "bbox", index))
 
 
     def identify(self, x, y):
@@ -680,7 +694,7 @@ class Entry(Widget, tkinter.Entry):
         """Force revalidation, independent of the conditions specified
         by the validate option. Returns False if validation fails, True
         if it succeeds. Sets or clears the invalid state accordingly."""
-        return bool(self.tk.call(self._w, "validate"))
+        return bool(self.tk.getboolean(self.tk.call(self._w, "validate")))
 
 
 class Combobox(Entry):
@@ -707,6 +721,8 @@ class Combobox(Entry):
         element at position newindex in the list of values. Otherwise,
         returns the index of the current value in the list of values
         or -1 if the current value does not appear in the list."""
+        if newindex is None:
+            return self.tk.getint(self.tk.call(self._w, "current"))
         return self.tk.call(self._w, "current", newindex)
 
 
@@ -861,7 +877,7 @@ class Notebook(Widget):
     def index(self, tab_id):
         """Returns the numeric index of the tab specified by tab_id, or
         the total number of tabs if tab_id is the string "end"."""
-        return self.tk.call(self._w, "index", tab_id)
+        return self.tk.getint(self.tk.call(self._w, "index", tab_id))
 
 
     def insert(self, pos, child, **kw):
@@ -896,7 +912,7 @@ class Notebook(Widget):
 
     def tabs(self):
         """Returns a list of windows managed by the notebook."""
-        return self.tk.call(self._w, "tabs") or ()
+        return self.tk.splitlist(self.tk.call(self._w, "tabs") or ())
 
 
     def enable_traversal(self):
@@ -979,7 +995,7 @@ class Panedwindow(Widget, tkinter.PanedWindow):
         constrained to be between 0 and the total size of the widget.
 
         Returns the new position of sash number index."""
-        return self.tk.call(self._w, "sashpos", index, newpos)
+        return self.tk.getint(self.tk.call(self._w, "sashpos", index, newpos))
 
 PanedWindow = Panedwindow # tkinter name compatibility
 
@@ -1179,14 +1195,15 @@ class Treeview(Widget, tkinter.XView, tkinter.YView):
         If column is specified, returns the bounding box of that cell.
         If the item is not visible (i.e., if it is a descendant of a
         closed item or is scrolled offscreen), returns an empty string."""
-        return self.tk.call(self._w, "bbox", item, column)
+        return self._getints(self.tk.call(self._w, "bbox", item, column)) or ''
 
 
     def get_children(self, item=None):
         """Returns a tuple of children belonging to item.
 
         If item is not specified, returns root children."""
-        return self.tk.call(self._w, "children", item or '') or ()
+        return self.tk.splitlist(
+                self.tk.call(self._w, "children", item or '') or ())
 
 
     def set_children(self, item, *newchildren):
@@ -1227,7 +1244,7 @@ class Treeview(Widget, tkinter.XView, tkinter.YView):
     def exists(self, item):
         """Returns True if the specified item is present in the tree,
         False otherwise."""
-        return bool(self.tk.call(self._w, "exists", item))
+        return bool(self.tk.getboolean(self.tk.call(self._w, "exists", item)))
 
 
     def focus(self, item=None):
@@ -1309,7 +1326,7 @@ class Treeview(Widget, tkinter.XView, tkinter.YView):
     def index(self, item):
         """Returns the integer index of item within its parent's list
         of children."""
-        return self.tk.call(self._w, "index", item)
+        return self.tk.getint(self.tk.call(self._w, "index", item))
 
 
     def insert(self, parent, index, iid=None, **kw):
@@ -1418,7 +1435,7 @@ class Treeview(Widget, tkinter.XView, tkinter.YView):
         value of given column in given item to the specified value."""
         res = self.tk.call(self._w, "set", item, column, value)
         if column is None and value is None:
-            return _dict_from_tcltuple(res, False)
+            return _dict_from_tcltuple(self.tk.splitlist(res), False)
         else:
             return res
 
@@ -1449,7 +1466,8 @@ class Treeview(Widget, tkinter.XView, tkinter.YView):
         all items which have the specified tag.
 
         * Availability: Tk 8.6"""
-        return self.tk.call(self._w, "tag", "has", tagname, item)
+        return self.tk.getboolean(
+                self.tk.call(self._w, "tag", "has", tagname, item))
 
 
 # Extensions
@@ -1521,7 +1539,8 @@ class LabeledScale(Frame):
 
             self.label.place_configure(x=x, y=y)
 
-        from_, to = self.scale['from'], self.scale['to']
+        from_ = _to_number(self.scale['from'])
+        to = _to_number(self.scale['to'])
         if to < from_:
             from_, to = to, from_
         newval = self._variable.get()

Misc/NEWS

@@ -31,6 +31,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #20072: Fixed multiple errors in tkinter with wantobjects is False.
+
 - Issue #20108: Avoid parameter name clash in inspect.getcallargs().
 
 - Issue #12692: Backport the fix for ResourceWarning in test_urllib2net. This