[issue37549] os.dup() fails for standard streams on Windows 7

[Bruno Oliveira]

Change by Bruno Oliveira :


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nosy: +Bruno Oliveira

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[issue34900] unittest subTests() fails when called from debug()

[Bruno Oliveira]

Bruno Oliveira  added the comment:

> FYI, I just noticed that this is a duplicate of issue 29551, but decided to 
> keep this one open.

OK thanks. I did try to search for open issues before filing this one by using 
the "subtest result_supports_subtests" terms, as I figured a bug report would 
include the traceback, that's why I didn't find 29551, heh.

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[issue34900] unittest subTests() fails when called from debug()

[Bruno Oliveira]

Bruno Oliveira  added the comment:

Great, thanks again for the quick review.

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[issue34900] unittest subTests() fails when called from debug()

[Bruno Oliveira]

Change by Bruno Oliveira :


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type:  -> crash

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[issue34900] unittest subTests() fails when called from debug()

[Bruno Oliveira]

New submission from Bruno Oliveira :

Consider this code:

import unittest


class TC(unittest.TestCase):

def test_subtest(self):
with self.subTest():
pass


tc = TC('test_subtest')
tc.run()

This works when executed, but if we change ``tc.run()`` to ``tc.debug()`` we 
get the following exception:

Traceback (most recent call last):
  File ".tmp\test-unittest-regression.py", line 13, in 
tc.debug()
  File 
"C:\Users\Bruno\AppData\Local\Programs\Python\Python36\lib\unittest\case.py", 
line 658, in debug
getattr(self, self._testMethodName)()
  File ".tmp\test-unittest-regression.py", line 7, in test_subtest
with self.subTest():
  File 
"C:\Users\Bruno\AppData\Local\Programs\Python\Python36\lib\contextlib.py", line 
81, in __enter__
return next(self.gen)
  File 
"C:\Users\Bruno\AppData\Local\Programs\Python\Python36\lib\unittest\case.py", 
line 512, in subTest
if not self._outcome.result_supports_subtests:
AttributeError: 'NoneType' object has no attribute 
'result_supports_subtests'

Looking at the code, ``subTest`` assumes that the ``TestCase`` instance has the 
``self._outcome`` atribute, which is set only by ``run()``.

--
components: Library (Lib)
messages: 327092
nosy: Bruno Oliveira
priority: normal
severity: normal
status: open
title: unittest subTests() fails when called from debug()
versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7

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[issue30570] issubclass segfaults on objects with weird __getattr__

[Bruno Oliveira]

Changes by Bruno Oliveira <nicodde...@gmail.com>:


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[issue25270] codecs.escape_encode systemerror on empty byte string

[Bruno Oliveira]

Changes by Bruno Oliveira <nicodde...@gmail.com>:


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