Terry J. Reedy added the comment:
Ned Deily noticed the same problem when running with test.regrtest #27714.
I cannot reproduce this issue when running both tests either with unittest or
test.regrtest.
F:\Python\dev>36\pcbuild\win32\python_d.exe -m unittest test.test_tix
test.test_idle test.test_tix
.............................................................................................................................................................................................................................
----------------------------------------------------------------------
Ran 221 tests in 3.959s
OK
F:\Python\dev>36\pcbuild\win32\python_d.exe -m test -ugui test_tix test_idle
test_tix
Run tests sequentially
0:00:00 [1/3] test_tix
0:00:00 [2/3] test_idle
0:00:03 [3/3] test_tix
All 3 tests OK.
if __name__ == '__main__':
unittest.main(verbosity=2, exit=False)
+ tk._support_default_root = 1
+ tk._default_root = None
Zach, I don't know of any way to get either unittest or test.regrtest to run
anything in test_idle after it runs the test collector *and* the tests. Do you?
The addition of tk.NoDefaultRoot() to both IDLE and its tests was suggested by
Serhiy in #24137. Doing so exposed several issues in htests but no real bugs
in IDLE itself. My patch to restore tkinter module only works when test_idle is
run as main. So as far as that patch goes, tkinter should only changed when
the test is run as main. I will move the call. I have already changed my
check script to run test_idle this way.
Otherwise, the easiest way to leave tkinter as it was when testing ends is to
not change it. I am aware that tkinter tests avoid the by defining a mixin
class with class methods that call and undo the call. It is used in 11 test
classes within the tkinter and ttk tests. However, this refactoring would be
harder to apply to IDLE tests and not sufficient in itself. It is at best a
future project.
I added a guard to IDLE's NoDefaultRoot call for when pyshell.main is broken
into multiple testable functions.
----------
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<http://bugs.python.org/issue27611>
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