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[3.9] bpo-42630: Improve error reporting in Tkinter for absent default root (GH-23781) (GH-23853)

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* Tkinter functions and constructors which need a default root window
  raise now RuntimeError with descriptive message instead of obscure
  AttributeError or NameError if it is not created yet or cannot
  be created automatically.

* Add tests for all functions which use default root window.

* Fix import in the pynche script.

(cherry picked from commit 3d569fd6dc)
This commit is contained in:
Serhiy Storchaka 2020-12-19 13:08:07 +02:00 • committed by GitHub
parent d458d8dab0
commit 87e7a14ee3
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19 changed files with 316 additions and 87 deletions
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14
Lib/tkinter/test/test_tkinter/test_widgets.py
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@ -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__':