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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_ttk/test_widgets.py
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@ -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__":