python · serhiy-storchaka · Sep 26, 2019 · Oct 24, 2022 · Oct 24, 2022
diff --git a/Doc/whatsnew/3.12.rst b/Doc/whatsnew/3.12.rst
@@ -652,6 +652,16 @@ Porting to Python 3.12
   :class:`bytes` type is accepted for bytes strings.
   (Contributed by Victor Stinner in :gh:`98393`.)
 
+* Callbacks registered in the :mod:`tkinter` module now take arguments as
+  various Python objects (``int``, ``float``, ``bytes``, ``tuple``),
+  not just ``str``.
+  To restore the previous behavior set :mod:`!tkinter` module global
+  :data:`~tkinter.wantobject` to ``1`` before creating the
+  :class:`~tkinter.Tk` object or call the :meth:`~tkinter.Tk.wantobject`
+  method of the :class:`!Tk` object with argument ``1``.
+  Calling it with argument ``2`` restores the current default behavior.
+  (Contributed by Serhiy Storchaka in :gh:`66410`.)
+
 Deprecated
 ----------
 

@@ -107,7 +107,7 @@ def dispatch(self, operation, *args):
         to *args to accomplish that.  For an example, see colorizer.py.
 
         '''
-        m = self._operations.get(operation)
+        m = self._operations.get(str(operation))
         try:
             if m:
                 return m(*args)

diff --git a/Lib/test/test_tcl.py b/Lib/test/test_tcl.py
@@ -487,29 +487,36 @@ def testfunc(arg):
             return arg
         self.interp.createcommand('testfunc', testfunc)
         self.addCleanup(self.interp.tk.deletecommand, 'testfunc')
-        def check(value, expected=None, *, eq=self.assertEqual):
-            if expected is None:
-                expected = value
+        def check(value, expected1=None, expected2=None, *, eq=self.assertEqual):
+            expected = value
+            if self.wantobjects >= 2:
+                if expected2 is not None:
+                    expected = expected2
+                expected_type = type(expected)
+            else:
+                if expected1 is not None:
+                    expected = expected1
+                expected_type = str
             nonlocal result
             result = None
             r = self.interp.call('testfunc', value)
-            self.assertIsInstance(result, str)
+            self.assertIsInstance(result, expected_type)
             eq(result, expected)
-            self.assertIsInstance(r, str)
+            self.assertIsInstance(r, expected_type)
             eq(r, expected)
         def float_eq(actual, expected):
             self.assertAlmostEqual(float(actual), expected,
                                    delta=abs(expected) * 1e-10)
 
-        check(True, '1')
-        check(False, '0')
+        check(True, '1', 1)
+        check(False, '0', 0)
         check('string')
         check('string\xbd')
         check('string\u20ac')
         check('string\U0001f4bb')
         if sys.platform != 'win32':
-            check('<\udce2\udc82\udcac>', '<\u20ac>')
-            check('<\udced\udca0\udcbd\udced\udcb2\udcbb>', '<\U0001f4bb>')
+            check('<\udce2\udc82\udcac>', '<\u20ac>', '<\u20ac>')
+            check('<\udced\udca0\udcbd\udced\udcb2\udcbb>', '<\U0001f4bb>', '<\U0001f4bb>')
         check('')
         check(b'string', 'string')
         check(b'string\xe2\x82\xac', 'string\xe2\x82\xac')
@@ -531,9 +538,13 @@ def float_eq(actual, expected):
         check(float('inf'), eq=float_eq)
         check(-float('inf'), eq=float_eq)
         # XXX NaN representation can be not parsable by float()
-        check((), '')
-        check((1, (2,), (3, 4), '5 6', ()), '1 2 {3 4} {5 6} {}')
-        check([1, [2,], [3, 4], '5 6', []], '1 2 {3 4} {5 6} {}')
+        check((), '', '')
+        check((1, (2,), (3, 4), '5 6', ()),
+              '1 2 {3 4} {5 6} {}',
+              (1, (2,), (3, 4), '5 6', ''))
+        check([1, [2,], [3, 4], '5 6', []],
+              '1 2 {3 4} {5 6} {}',
+              (1, (2,), (3, 4), '5 6', ''))
 
     def test_splitlist(self):
         splitlist = self.interp.tk.splitlist

diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
@@ -40,7 +40,7 @@
 from tkinter.constants import *
 import re
 
-wantobjects = 1
+wantobjects = 2
 
 TkVersion = float(_tkinter.TK_VERSION)
 TclVersion = float(_tkinter.TCL_VERSION)
@@ -1648,7 +1648,10 @@ def getint_event(s):
         try:
             e.type = EventType(T)
         except ValueError:
-            e.type = T
+            try:
+                e.type = EventType(str(T))
+            except ValueError:
+                e.type = T
         try:
             e.widget = self._nametowidget(W)
         except KeyError:

diff --git a/Misc/NEWS.d/next/Library/2022-10-24-12-05-19.gh-issue-66410.du4UKW.rst b/Misc/NEWS.d/next/Library/2022-10-24-12-05-19.gh-issue-66410.du4UKW.rst
@@ -0,0 +1,7 @@
+Callbacks registered in the :mod:`tkinter` module now take arguments as
+various Python objects (``int``, ``float``, ``bytes``, ``tuple``), not just
+``str``. To restore the previous behavior set :mod:`!tkinter` module global
+:data:`~tkinter.wantobject` to ``1`` before creating the
+:class:`~tkinter.Tk` object or call the :meth:`~tkinter.Tk.wantobject`
+method of the :class:`!Tk` object with argument ``1``. Calling it with
+argument ``2`` restores the current default behavior.
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
@@ -2190,7 +2190,7 @@ _tkinter_tkapp_splitlist(TkappObject *self, PyObject *arg)
 
 /* Client data struct */
 typedef struct {
-    PyObject *self;
+    TkappObject *self;
     PyObject *func;
 } PythonCmd_ClientData;
 
@@ -2214,6 +2214,7 @@ PythonCmd(ClientData clientData, Tcl_Interp *interp,
     PyObject *args, *res;
     int i;
     Tcl_Obj *obj_res;
+    int objargs = data->self->wantobjects >= 2;
 
     ENTER_PYTHON
 
@@ -2222,7 +2223,8 @@ PythonCmd(ClientData clientData, Tcl_Interp *interp,
         return PythonCmd_Error(interp);
 
     for (i = 0; i < (objc - 1); i++) {
-        PyObject *s = unicodeFromTclObj(objv[i + 1]);
+        PyObject *s = objargs ? FromObj(data->self, objv[i + 1])
+                              : unicodeFromTclObj(objv[i + 1]);
         if (!s) {
             Py_DECREF(args);
             return PythonCmd_Error(interp);
@@ -2324,7 +2326,7 @@ _tkinter_tkapp_createcommand_impl(TkappObject *self, const char *name,
         return PyErr_NoMemory();
     Py_INCREF(self);
     Py_INCREF(func);
-    data->self = (PyObject *) self;
+    data->self = self;
     data->func = func;
     if (self->threaded && self->thread_id != Tcl_GetCurrentThread()) {
         Tcl_Condition cond = NULL;
@@ -2851,7 +2853,7 @@ Tkapp_WantObjects(PyObject *self, PyObject *args)
     if (!PyArg_ParseTuple(args, "|i:wantobjects", &wantobjects))
         return NULL;
     if (wantobjects == -1)
-        return PyBool_FromLong(((TkappObject*)self)->wantobjects);
+        return PyLong_FromLong(((TkappObject*)self)->wantobjects);
     ((TkappObject*)self)->wantobjects = wantobjects;
 
     Py_RETURN_NONE;