TST: some unclosed files in parser testing?

[jreback]

https://travis-ci.org/pandas-dev/pandas/jobs/223491099

..................sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name=0 mode='r' encoding='UTF-8'>
sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name=1 mode='w' encoding='UTF-8'>
sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name=0 mode='r' encoding='UTF-8'>
sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name=1 mode='w' encoding='UTF-8'>

[jreback]

cc @gfyoung if you have a chance (this is the 3.6 build). not 100% sure these are the parser, but obviously an io component.

[gfyoung]

Sure thing. Quick question: is there a way to get pytest to error if a ResourceWarning is produced?

[TomAugspurger]

With https://pypi.python.org/pypi/pytest-warnings it looks like this might work

pytest -W ignore -W error::ResourceWarning

[gfyoung]

I can't seem to track it down. Not sure where this is occurring. Interesting though, I broke a bunch of tests by including that test command @TomAugspurger provided (see here).

For reference, here is the commit I made to get these failures here.

[gfyoung]

Can anyone reproduce the warnings locally? Although I got things to break as seen above, that's way too many to match the warnings seen originally.

[TomAugspurger]

I tried and was unable to reproduce them (python 3.6).

…

On Thu, Apr 20, 2017 at 10:48 AM, gfyoung ***@***.***> wrote: Can anyone reproduce the warnings locally? Although I got things to break as seen above <#16055 (comment)>, that's way too many to match the warnings seen originally. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#16055 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABQHImxz6q6I0HioTu9LWqnI5rxM3ejnks5rx343gaJpZM4NBeH_> .

[gfyoung]

Hmm...without anyone able to reproduce this, it's very difficult to tell if this is a parser issue. The thing that makes me weary about that is because the filename is sys instead of a Python file.

Thoughts on how to proceed?

[jreback]

make sure you define this: PANDAS_TESTING_MODE="deprecate" and -s when you run the tests. I only think this occurs on linux-64. doesn't repro on osx. will take a look tomorrow there. It might be because of the multiprocessing (in pytest-xdist), thought not sure.

[gfyoung]

@jreback : Any insights on this? Just wondering.

[jreback]

nope. it shows on the travis build but I cannot repro locally. will just close this.