diff options
| -rwxr-xr-x | Lib/idlelib/pyshell.py | 4 | ||||
| -rw-r--r-- | Lib/test/test_idle.py | 2 | ||||
| -rw-r--r-- | Lib/tkinter/__init__.py | 51 | ||||
| -rw-r--r-- | Lib/tkinter/commondialog.py | 4 | ||||
| -rw-r--r-- | Lib/tkinter/font.py | 6 | ||||
| -rw-r--r-- | Lib/tkinter/simpledialog.py | 19 | ||||
| -rw-r--r-- | Lib/tkinter/test/support.py | 27 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_font.py | 34 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_images.py | 45 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_misc.py | 82 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_simpledialog.py | 25 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_variables.py | 17 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_tkinter/test_widgets.py | 14 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_ttk/test_extensions.py | 26 | ||||
| -rw-r--r-- | Lib/tkinter/test/test_ttk/test_widgets.py | 14 | ||||
| -rw-r--r-- | Lib/tkinter/tix.py | 9 | ||||
| -rw-r--r-- | Lib/tkinter/ttk.py | 7 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2020-12-15-17-51-27.bpo-42630.jf4jBl.rst | 4 | ||||
| -rw-r--r-- | Tools/pynche/PyncheWidget.py | 12 |
19 files changed, 315 insertions, 87 deletions
diff --git a/Lib/idlelib/pyshell.py b/Lib/idlelib/pyshell.py index c3ecdc7b1b0..abe8a85952b 100755 --- a/Lib/idlelib/pyshell.py +++ b/Lib/idlelib/pyshell.py @@ -1061,8 +1061,10 @@ class PyShell(OutputWindow): (sys.version, sys.platform, self.COPYRIGHT, nosub)) self.text.focus_force() self.showprompt() + # User code should use separate default Tk root window import tkinter - tkinter._default_root = None # 03Jan04 KBK What's this? + tkinter._support_default_root = True + tkinter._default_root = None return True def stop_readline(self): diff --git a/Lib/test/test_idle.py b/Lib/test/test_idle.py index b205d356498..8756b766334 100644 --- a/Lib/test/test_idle.py +++ b/Lib/test/test_idle.py @@ -20,5 +20,5 @@ from idlelib.idle_test import load_tests if __name__ == '__main__': tk.NoDefaultRoot() unittest.main(exit=False) - tk._support_default_root = 1 + tk._support_default_root = True tk._default_root = None diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py index 3bfeb7a0179..1cc18704613 100644 --- a/Lib/tkinter/__init__.py +++ b/Lib/tkinter/__init__.py @@ -270,7 +270,7 @@ class Event: ) -_support_default_root = 1 +_support_default_root = True _default_root = None @@ -280,13 +280,26 @@ def NoDefaultRoot(): Call this function to inhibit that the first instance of Tk is used for windows without an explicit parent window. """ - global _support_default_root - _support_default_root = 0 - global _default_root + global _support_default_root, _default_root + _support_default_root = False + # Delete, so any use of _default_root will immediately raise an exception. + # Rebind before deletion, so repeated calls will not fail. _default_root = None del _default_root +def _get_default_root(what=None): + if not _support_default_root: + raise RuntimeError("No master specified and tkinter is " + "configured to not support default root") + if not _default_root: + if what: + raise RuntimeError(f"Too early to {what}: no default root window") + root = Tk() + assert _default_root is root + return _default_root + + def _tkerror(err): """Internal function.""" pass @@ -330,7 +343,7 @@ class Variable: raise TypeError("name must be a string") global _varnum if not master: - master = _default_root + master = _get_default_root('create variable') self._root = master._root() self._tk = master.tk if name: @@ -591,7 +604,7 @@ class BooleanVar(Variable): def mainloop(n=0): """Run the main loop of Tcl.""" - _default_root.tk.mainloop(n) + _get_default_root('run the main loop').tk.mainloop(n) getint = int @@ -600,9 +613,9 @@ getdouble = float def getboolean(s): - """Convert true and false to integer values 1 and 0.""" + """Convert Tcl object to True or False.""" try: - return _default_root.tk.getboolean(s) + return _get_default_root('use getboolean()').tk.getboolean(s) except TclError: raise ValueError("invalid literal for getboolean()") @@ -2248,7 +2261,7 @@ class Tk(Misc, Wm): is the name of the widget class.""" self.master = None self.children = {} - self._tkloaded = 0 + self._tkloaded = False # to avoid recursions in the getattr code in case of failure, we # ensure that self.tk is always _something_. self.tk = None @@ -2272,7 +2285,7 @@ class Tk(Misc, Wm): self._loadtk() def _loadtk(self): - self._tkloaded = 1 + self._tkloaded = True global _default_root # Version sanity checks tk_version = self.tk.getvar('tk_version') @@ -2521,12 +2534,8 @@ class BaseWidget(Misc): def _setup(self, master, cnf): """Internal function. Sets up information about children.""" - if _support_default_root: - global _default_root - if not master: - if not _default_root: - _default_root = Tk() - master = _default_root + if not master: + master = _get_default_root() self.master = master self.tk = master.tk name = None @@ -3990,9 +3999,7 @@ class Image: def __init__(self, imgtype, name=None, cnf={}, master=None, **kw): self.name = None if not master: - master = _default_root - if not master: - raise RuntimeError('Too early to create image') + master = _get_default_root('create image') self.tk = getattr(master, 'tk', master) if not name: Image._last_id += 1 @@ -4146,11 +4153,13 @@ class BitmapImage(Image): def image_names(): - return _default_root.tk.splitlist(_default_root.tk.call('image', 'names')) + tk = _get_default_root('use image_names()').tk + return tk.splitlist(tk.call('image', 'names')) def image_types(): - return _default_root.tk.splitlist(_default_root.tk.call('image', 'types')) + tk = _get_default_root('use image_types()').tk + return tk.splitlist(tk.call('image', 'types')) class Spinbox(Widget, XView): diff --git a/Lib/tkinter/commondialog.py b/Lib/tkinter/commondialog.py index e56b5baf7d1..cc3069842c3 100644 --- a/Lib/tkinter/commondialog.py +++ b/Lib/tkinter/commondialog.py @@ -18,10 +18,10 @@ class Dialog: command = None def __init__(self, master=None, **options): + if not master: + master = options.get('parent') self.master = master self.options = options - if not master and options.get('parent'): - self.master = options['parent'] def _fixoptions(self): pass # hook diff --git a/Lib/tkinter/font.py b/Lib/tkinter/font.py index a9f79d8e456..c051162bd29 100644 --- a/Lib/tkinter/font.py +++ b/Lib/tkinter/font.py @@ -69,7 +69,7 @@ class Font: def __init__(self, root=None, font=None, name=None, exists=False, **options): if not root: - root = tkinter._default_root + root = tkinter._get_default_root('use font') tk = getattr(root, 'tk', root) if font: # get actual settings corresponding to the given font @@ -184,7 +184,7 @@ class Font: def families(root=None, displayof=None): "Get font families (as a tuple)" if not root: - root = tkinter._default_root + root = tkinter._get_default_root('use font.families()') args = () if displayof: args = ('-displayof', displayof) @@ -194,7 +194,7 @@ def families(root=None, displayof=None): def names(root=None): "Get names of defined fonts (as a tuple)" if not root: - root = tkinter._default_root + root = tkinter._get_default_root('use font.names()') return root.tk.splitlist(root.tk.call("font", "names")) diff --git a/Lib/tkinter/simpledialog.py b/Lib/tkinter/simpledialog.py index 85244171117..b882d47c961 100644 --- a/Lib/tkinter/simpledialog.py +++ b/Lib/tkinter/simpledialog.py @@ -24,9 +24,7 @@ askstring -- get a string from the user """ from tkinter import * -from tkinter import messagebox - -import tkinter # used at _QueryDialog for tkinter._default_root +from tkinter import messagebox, _get_default_root class SimpleDialog: @@ -128,13 +126,17 @@ class Dialog(Toplevel): title -- the dialog title ''' - Toplevel.__init__(self, parent) + master = parent + if not master: + master = _get_default_root('create dialog window') + + Toplevel.__init__(self, master) self.withdraw() # remain invisible for now - # If the master is not viewable, don't + # If the parent is not viewable, don't # make the child transient, or else it # would be opened withdrawn - if parent.winfo_viewable(): + if parent is not None and parent.winfo_viewable(): self.transient(parent) if title: @@ -155,7 +157,7 @@ class Dialog(Toplevel): self.protocol("WM_DELETE_WINDOW", self.cancel) - if self.parent is not None: + if parent is not None: self.geometry("+%d+%d" % (parent.winfo_rootx()+50, parent.winfo_rooty()+50)) @@ -259,9 +261,6 @@ class _QueryDialog(Dialog): minvalue = None, maxvalue = None, parent = None): - if not parent: - parent = tkinter._default_root - self.prompt = prompt self.minvalue = minvalue self.maxvalue = maxvalue diff --git a/Lib/tkinter/test/support.py b/Lib/tkinter/test/support.py index 467a0b66c26..dbc47a81e65 100644 --- a/Lib/tkinter/test/support.py +++ b/Lib/tkinter/test/support.py @@ -36,6 +36,33 @@ class AbstractTkTest: w.destroy() self.root.withdraw() + +class AbstractDefaultRootTest: + + def setUp(self): + self._old_support_default_root = tkinter._support_default_root + destroy_default_root() + tkinter._support_default_root = True + self.wantobjects = tkinter.wantobjects + + def tearDown(self): + destroy_default_root() + tkinter._default_root = None + tkinter._support_default_root = self._old_support_default_root + + def _test_widget(self, constructor): + # no master passing + x = constructor() + self.assertIsNotNone(tkinter._default_root) + self.assertIs(x.master, tkinter._default_root) + self.assertIs(x.tk, tkinter._default_root.tk) + x.destroy() + destroy_default_root() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, constructor) + self.assertFalse(hasattr(tkinter, '_default_root')) + + def destroy_default_root(): if getattr(tkinter, '_default_root', None): tkinter._default_root.update_idletasks() diff --git a/Lib/tkinter/test/test_tkinter/test_font.py b/Lib/tkinter/test/test_tkinter/test_font.py index 6d1eea44b4d..3f712090643 100644 --- a/Lib/tkinter/test/test_tkinter/test_font.py +++ b/Lib/tkinter/test/test_tkinter/test_font.py @@ -2,7 +2,7 @@ import unittest import tkinter from tkinter import font from test.support import requires, run_unittest, gc_collect, ALWAYS_EQ -from tkinter.test.support import AbstractTkTest +from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest requires('gui') @@ -107,7 +107,37 @@ class FontTest(AbstractTkTest, unittest.TestCase): ) -tests_gui = (FontTest, ) +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_families(self): + self.assertRaises(RuntimeError, font.families) + root = tkinter.Tk() + families = font.families() + self.assertIsInstance(families, tuple) + self.assertTrue(families) + for family in families: + self.assertIsInstance(family, str) + self.assertTrue(family) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, font.families) + + def test_names(self): + self.assertRaises(RuntimeError, font.names) + root = tkinter.Tk() + names = font.names() + self.assertIsInstance(names, tuple) + self.assertTrue(names) + for name in names: + self.assertIsInstance(name, str) + self.assertTrue(name) + self.assertIn(fontname, names) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, font.names) + + +tests_gui = (FontTest, DefaultRootTest) if __name__ == "__main__": run_unittest(*tests_gui) diff --git a/Lib/tkinter/test/test_tkinter/test_images.py b/Lib/tkinter/test/test_tkinter/test_images.py index 6c6cb4e1485..2526e92200d 100644 --- a/Lib/tkinter/test/test_tkinter/test_images.py +++ b/Lib/tkinter/test/test_tkinter/test_images.py @@ -2,7 +2,7 @@ import unittest import tkinter from test import support from test.support import os_helper -from tkinter.test.support import AbstractTkTest, requires_tcl +from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest, requires_tcl support.requires('gui') @@ -20,6 +20,47 @@ class MiscTest(AbstractTkTest, unittest.TestCase): self.assertIsInstance(image_names, tuple) +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_image_types(self): + self.assertRaises(RuntimeError, tkinter.image_types) + root = tkinter.Tk() + image_types = tkinter.image_types() + self.assertIsInstance(image_types, tuple) + self.assertIn('photo', image_types) + self.assertIn('bitmap', image_types) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.image_types) + + def test_image_names(self): + self.assertRaises(RuntimeError, tkinter.image_names) + root = tkinter.Tk() + image_names = tkinter.image_names() + self.assertIsInstance(image_names, tuple) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.image_names) + + def test_image_create_bitmap(self): + self.assertRaises(RuntimeError, tkinter.BitmapImage) + root = tkinter.Tk() + image = tkinter.BitmapImage() + self.assertIn(image.name, tkinter.image_names()) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.BitmapImage) + + def test_image_create_photo(self): + self.assertRaises(RuntimeError, tkinter.PhotoImage) + root = tkinter.Tk() + image = tkinter.PhotoImage() + self.assertIn(image.name, tkinter.image_names()) + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.PhotoImage) + + class BitmapImageTest(AbstractTkTest, unittest.TestCase): @classmethod @@ -331,7 +372,7 @@ class PhotoImageTest(AbstractTkTest, unittest.TestCase): self.assertEqual(image.transparency_get(4, 6), False) -tests_gui = (MiscTest, BitmapImageTest, PhotoImageTest,) +tests_gui = (MiscTest, DefaultRootTest, BitmapImageTest, PhotoImageTest,) if __name__ == "__main__": support.run_unittest(*tests_gui) diff --git a/Lib/tkinter/test/test_tkinter/test_misc.py b/Lib/tkinter/test/test_tkinter/test_misc.py index b8eea2544f5..585d81ddf9f 100644 --- a/Lib/tkinter/test/test_tkinter/test_misc.py +++ b/Lib/tkinter/test/test_tkinter/test_misc.py @@ -1,7 +1,7 @@ import unittest import tkinter from test import support -from tkinter.test.support import AbstractTkTest +from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest support.requires('gui') @@ -241,7 +241,85 @@ class MiscTest(AbstractTkTest, unittest.TestCase): " num=3 delta=-1 focus=True" " x=10 y=20 width=300 height=200>") -tests_gui = (MiscTest, ) + def test_getboolean(self): + for v in 'true', 'yes', 'on', '1', 't', 'y', 1, True: + self.assertIs(self.root.getboolean(v), True) + for v in 'false', 'no', 'off', '0', 'f', 'n', 0, False: + self.assertIs(self.root.getboolean(v), False) + self.assertRaises(ValueError, self.root.getboolean, 'yea') + self.assertRaises(ValueError, self.root.getboolean, '') + self.assertRaises(TypeError, self.root.getboolean, None) + self.assertRaises(TypeError, self.root.getboolean, ()) + + def test_mainloop(self): + log = [] + def callback(): + log.append(1) + self.root.after(100, self.root.quit) + self.root.after(100, callback) + self.root.mainloop(1) + self.assertEqual(log, []) + self.root.mainloop(0) + self.assertEqual(log, [1]) + self.assertTrue(self.root.winfo_exists()) + + +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_default_root(self): + self.assertIs(tkinter._support_default_root, True) + self.assertIsNone(tkinter._default_root) + root = tkinter.Tk() + root2 = tkinter.Tk() + root3 = tkinter.Tk() + self.assertIs(tkinter._default_root, root) + root2.destroy() + self.assertIs(tkinter._default_root, root) + root.destroy() + self.assertIsNone(tkinter._default_root) + root3.destroy() + self.assertIsNone(tkinter._default_root) + + def test_no_default_root(self): + self.assertIs(tkinter._support_default_root, True) + self.assertIsNone(tkinter._default_root) + root = tkinter.Tk() + self.assertIs(tkinter._default_root, root) + tkinter.NoDefaultRoot() + self.assertIs(tkinter._support_default_root, False) + self.assertFalse(hasattr(tkinter, '_default_root')) + # repeated call is no-op + tkinter.NoDefaultRoot() + self.assertIs(tkinter._support_default_root, False) + self.assertFalse(hasattr(tkinter, '_default_root')) + root.destroy() + self.assertIs(tkinter._support_default_root, False) + self.assertFalse(hasattr(tkinter, '_default_root')) + root = tkinter.Tk() + self.assertIs(tkinter._support_default_root, False) + self.assertFalse(hasattr(tkinter, '_default_root')) + root.destroy() + + def test_getboolean(self): + self.assertRaises(RuntimeError, tkinter.getboolean, '1') + root = tkinter.Tk() + self.assertIs(tkinter.getboolean('1'), True) + self.assertRaises(ValueError, tkinter.getboolean, 'yea') + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.getboolean, '1') + + def test_mainloop(self): + self.assertRaises(RuntimeError, tkinter.mainloop) + root = tkinter.Tk() + root.after_idle(root.quit) + tkinter.mainloop() + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, tkinter.mainloop) + + +tests_gui = (MiscTest, DefaultRootTest) if __name__ == "__main__": support.run_unittest(*tests_gui) diff --git a/Lib/tkinter/test/test_tkinter/test_simpledialog.py b/Lib/tkinter/test/test_tkinter/test_simpledialog.py new file mode 100644 index 00000000000..91191725880 --- /dev/null +++ b/Lib/tkinter/test/test_tkinter/test_simpledialog.py @@ -0,0 +1,25 @@ +import unittest +import tkinter +from test.support import requires, run_unittest, swap_attr +from tkinter.test.support import AbstractDefaultRootTest +from tkinter.simpledialog import Dialog, askinteger + +requires('gui') + + +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_askinteger(self): + self.assertRaises(RuntimeError, askinteger, "Go To Line", "Line number") + root = tkinter.Tk() + with swap_attr(Dialog, 'wait_window', lambda self, w: w.destroy()): + askinteger("Go To Line", "Line number") + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, askinteger, "Go To Line", "Line number") + + +tests_gui = (DefaultRootTest,) + +if __name__ == "__main__": + run_unittest(*tests_gui) diff --git a/Lib/tkinter/test/test_tkinter/test_variables.py b/Lib/tkinter/test/test_tkinter/test_variables.py index 08b7dedcaf9..63d7c21059e 100644 --- a/Lib/tkinter/test/test_tkinter/test_variables.py +++ b/Lib/tkinter/test/test_tkinter/test_variables.py @@ -1,8 +1,10 @@ import unittest import gc +import tkinter from tkinter import (Variable, StringVar, IntVar, DoubleVar, BooleanVar, Tcl, TclError) from test.support import ALWAYS_EQ +from tkinter.test.support import AbstractDefaultRootTest class Var(Variable): @@ -308,8 +310,21 @@ class TestBooleanVar(TestBase): v.get() +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_variable(self): + self.assertRaises(RuntimeError, Variable) + root = tkinter.Tk() + v = Variable() + v.set("value") + self.assertEqual(v.get(), "value") + root.destroy() + tkinter.NoDefaultRoot() + self.assertRaises(RuntimeError, Variable) + + tests_gui = (TestVariable, TestStringVar, TestIntVar, - TestDoubleVar, TestBooleanVar) + TestDoubleVar, TestBooleanVar, DefaultRootTest) if __name__ == "__main__": diff --git a/Lib/tkinter/test/test_tkinter/test_widgets.py b/Lib/tkinter/test/test_tkinter/test_widgets.py index 4b9b6ebdda0..54eddbf8216 100644 --- a/Lib/tkinter/test/test_tkinter/test_widgets.py +++ b/Lib/tkinter/test/test_tkinter/test_widgets.py @@ -5,7 +5,8 @@ import os from test.support import requires from tkinter.test.support import (tcl_version, requires_tcl, - get_tk_patchlevel, widget_eq) + get_tk_patchlevel, widget_eq, + AbstractDefaultRootTest) from tkinter.test.widget_tests import ( add_standard_options, noconv, pixels_round, AbstractWidgetTest, StandardOptionsTests, IntegerSizeTests, PixelSizeTests, @@ -1295,12 +1296,21 @@ class MessageTest(AbstractWidgetTest, unittest.TestCase): self.checkIntegerParam(widget, 'aspect', 250, 0, -300) +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_frame(self): + self._test_widget(tkinter.Frame) + + def test_label(self): + self._test_widget(tkinter.Label) + + tests_gui = ( ButtonTest, CanvasTest, CheckbuttonTest, EntryTest, FrameTest, LabelFrameTest,LabelTest, ListboxTest, MenubuttonTest, MenuTest, MessageTest, OptionMenuTest, PanedWindowTest, RadiobuttonTest, ScaleTest, ScrollbarTest, - SpinboxTest, TextTest, ToplevelTest, + SpinboxTest, TextTest, ToplevelTest, DefaultRootTest, ) if __name__ == '__main__': diff --git a/Lib/tkinter/test/test_ttk/test_extensions.py b/Lib/tkinter/test/test_ttk/test_extensions.py index 6937ba1ca9b..1a70e0befe6 100644 --- a/Lib/tkinter/test/test_ttk/test_extensions.py +++ b/Lib/tkinter/test/test_ttk/test_extensions.py @@ -2,8 +2,8 @@ import sys import unittest import tkinter from tkinter import ttk -from test.support import requires, run_unittest, swap_attr -from tkinter.test.support import AbstractTkTest, destroy_default_root +from test.support import requires, run_unittest +from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest requires('gui') @@ -46,20 +46,6 @@ class LabeledScaleTest(AbstractTkTest, unittest.TestCase): if hasattr(sys, 'last_type'): self.assertNotEqual(sys.last_type, tkinter.TclError) - - def test_initialization_no_master(self): - # no master passing - with swap_attr(tkinter, '_default_root', None), \ - swap_attr(tkinter, '_support_default_root', True): - try: - x = ttk.LabeledScale() - self.assertIsNotNone(tkinter._default_root) - self.assertEqual(x.master, tkinter._default_root) - self.assertEqual(x.tk, tkinter._default_root.tk) - x.destroy() - finally: - destroy_default_root() - def test_initialization(self): # master passing master = tkinter.Frame(self.root) @@ -311,7 +297,13 @@ class OptionMenuTest(AbstractTkTest, unittest.TestCase): optmenu2.destroy() -tests_gui = (LabeledScaleTest, OptionMenuTest) +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_labeledscale(self): + self._test_widget(ttk.LabeledScale) + + +tests_gui = (LabeledScaleTest, OptionMenuTest, DefaultRootTest) if __name__ == "__main__": run_unittest(*tests_gui) diff --git a/Lib/tkinter/test/test_ttk/test_widgets.py b/Lib/tkinter/test/test_ttk/test_widgets.py index 157ef0e8f87..de30e2476b4 100644 --- a/Lib/tkinter/test/test_ttk/test_widgets.py +++ b/Lib/tkinter/test/test_ttk/test_widgets.py @@ -6,7 +6,7 @@ import sys from tkinter.test.test_ttk.test_functions import MockTclObj from tkinter.test.support import (AbstractTkTest, tcl_version, get_tk_patchlevel, - simulate_mouse_click) + simulate_mouse_click, AbstractDefaultRootTest) from tkinter.test.widget_tests import (add_standard_options, noconv, AbstractWidgetTest, StandardOptionsTests, IntegerSizeTests, PixelSizeTests, setUpModule) @@ -1860,12 +1860,22 @@ class SizegripTest(AbstractWidgetTest, unittest.TestCase): def create(self, **kwargs): return ttk.Sizegrip(self.root, **kwargs) + +class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase): + + def test_frame(self): + self._test_widget(ttk.Frame) + + def test_label(self): + self._test_widget(ttk.Label) + + tests_gui = ( ButtonTest, CheckbuttonTest, ComboboxTest, EntryTest, FrameTest, LabelFrameTest, LabelTest, MenubuttonTest, NotebookTest, PanedWindowTest, ProgressbarTest, RadiobuttonTest, ScaleTest, ScrollbarTest, SeparatorTest, - SizegripTest, SpinboxTest, TreeviewTest, WidgetTest, + SizegripTest, SpinboxTest, TreeviewTest, WidgetTest, DefaultRootTest, ) if __name__ == "__main__": diff --git a/Lib/tkinter/tix.py b/Lib/tkinter/tix.py index ac545502e45..ef1e7406bc1 100644 --- a/Lib/tkinter/tix.py +++ b/Lib/tkinter/tix.py @@ -387,9 +387,7 @@ class TixWidget(tkinter.Widget): # These are missing from Tkinter def image_create(self, imgtype, cnf={}, master=None, **kw): if not master: - master = tkinter._default_root - if not master: - raise RuntimeError('Too early to create image') + master = self if kw and cnf: cnf = _cnfmerge((cnf, kw)) elif kw: cnf = kw options = () @@ -475,10 +473,7 @@ class DisplayStyle: elif 'refwindow' in cnf: master = cnf['refwindow'] else: - master = tkinter._default_root - if not master: - raise RuntimeError("Too early to create display style: " - "no root window") + master = tkinter._get_default_root('create display style') self.tk = master.tk self.stylename = self.tk.call('tixDisplayStyle', itemtype, *self._options(cnf,kw) ) diff --git a/Lib/tkinter/ttk.py b/Lib/tkinter/ttk.py index f3a2f7660f3..ab7aeb15e8f 100644 --- a/Lib/tkinter/ttk.py +++ b/Lib/tkinter/ttk.py @@ -349,12 +349,7 @@ def setup_master(master=None): If it is not allowed to use the default root and master is None, RuntimeError is raised.""" if master is None: - if tkinter._support_default_root: - master = tkinter._default_root or tkinter.Tk() - else: - raise RuntimeError( - "No master specified and tkinter is " - "configured to not support default root") + master = tkinter._get_default_root() return master diff --git a/Misc/NEWS.d/next/Library/2020-12-15-17-51-27.bpo-42630.jf4jBl.rst b/Misc/NEWS.d/next/Library/2020-12-15-17-51-27.bpo-42630.jf4jBl.rst new file mode 100644 index 00000000000..4b4a520931f --- /dev/null +++ b/Misc/NEWS.d/next/Library/2020-12-15-17-51-27.bpo-42630.jf4jBl.rst @@ -0,0 +1,4 @@ +:mod:`tkinter` functions and constructors which need a default root window +raise now :exc:`RuntimeError` with descriptive message instead of obscure +:exc:`AttributeError` or :exc:`NameError` if it is not created yet or cannot +be created automatically. diff --git a/Tools/pynche/PyncheWidget.py b/Tools/pynche/PyncheWidget.py index ef12198a218..ea456e577e1 100644 --- a/Tools/pynche/PyncheWidget.py +++ b/Tools/pynche/PyncheWidget.py @@ -36,15 +36,11 @@ class PyncheWidget: else: # Is there already a default root for Tk, say because we're # running under Guido's IDE? :-) Two conditions say no, either the - # import fails or _default_root is None. - tkroot = None - try: - from Tkinter import _default_root - tkroot = self.__tkroot = _default_root - except ImportError: - pass + # _default_root is None or it is unset. + tkroot = getattr(tkinter, '_default_root', None) if not tkroot: - tkroot = self.__tkroot = Tk(className='Pynche') + tkroot = Tk(className='Pynche') + self.__tkroot = tkroot # but this isn't our top level widget, so make it invisible tkroot.withdraw() # create the menubar |