capsys not capturing on Python 2.7

[cjw296]

This works on 3.5:

https://travis-ci.org/cjw296/sybil/jobs/214145869

But on 2.7, the capsys is empty:

https://travis-ci.org/cjw296/sybil/jobs/214145867#L301
https://travis-ci.org/cjw296/sybil/jobs/214145867#L314

[cjw296]

Well, this is the diff that got things working:

simplistix/sybil@d6cf19a

My guess is that unittest in py2.7 is doing something that makes capsys sad. Probably not worth bottoming out...

[cjw296]

nb: test_nose below the test I updated, that uses capsys and works fine...

[RonnyPfannschmidt]

thansk for the followup

[cjw296]

@RonnyPfannschmidt - weirder still, this also works: simplistix/sybil@791fe74

...and here we have it:
https://hg.python.org/cpython/file/v2.7.11/Lib/unittest/runner.py#l127

d'oh.

I thought a -c fd would work with that? It didn't...

[RonnyPfannschmidt]

Import time sys.stdout differs from test time sys.stdout

This is a bug in unittest, but pytest should protect you against it

[asottile]

hello, first off thank you for the issue!

python 2.x support has ended for pytest core.

we've decided in #7296 to close the python-2-specific issues to free up some space in our backlog. however, in accordance to our python 2.7 and 3.4 support community patches will still be accepted to the 4.6 series to fix bugs for python 2. (so if this issue is important to you and you have a patch to fix it, feel free to make a PR targeting the 4.6.x branch despite this ticket being closed).