OK, for now. Let's disregard my idea that stderr is swallowed. At some
point these test might have worked under coverage.

I was more thinking to bisect cpython. Perhaps i can find a revision that
works.

Patrik

Den 24 dec 2016 20:26 skrev "Ned Batchelder" <report@bugs.python.org>:

>
> Ned Batchelder added the comment:
>
> I don't believe this is coverage.py's fault, so I don't have an answer to
> your question.  There is no revision of coverage.py that *does* swallow
> stderr.  Also, as you can see from the test output, it isn't swallowed,
> it's not being captured where it should be captured, but it is appearing on
> the terminal.  I see more than 60 uses of captured_stderr in the Python
> test suite. If coverage.py were swallowing stderr, I would expect dozens of
> test failures.  The problem is more subtle.
>
> If you want, you can bisect against any revision of coverage.py you like,
> perhaps the released 4.2?
>
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> <http://bugs.python.org/issue29048>
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