Master test failure

[SylvainCorlay]

Thee tests on master appear to be failing on Windows + Python 3.6 over OSError: [WinError 6] The handle is invalid.

I re-started the tests to see if this occurs all the time, because the PR that was merged last was passing.

[SylvainCorlay]

Edit: always failing on windows-latest 3.6.

[davidbrochart]

It looks a lot like the issue we had in jupyter_server, basically there was a bug in Python on Windows that has been fixed and back-ported to python >= 3.7 (https://bugs.python.org/issue37380).

[MSeal]

Thanks for raising. If someone hasn't dug into fixing this in a couple days I should have time at the end of the week to fix builds. There's a number of doc build failures across projects as well that need tweaks to repair :/

[willingc]

nbclient doc builds are passing.

[SylvainCorlay]

has been fixed and back-ported to python >= 3.7 (https://bugs.python.org/issue37380).

Thanks! Do you know if there is an advertized workaround so that we don't have to drop support for windows and Python 3.6.

[davidbrochart]

I couldn't find any.

[SylvainCorlay]

We should ask for one on the CPython issue.

[MSeal]

Agreed. @davidbrochart do you have enough context to make that issue? I'm less familiar with the nature of the issue.

[davidbrochart]

See #77

[MSeal]

Looks like it's all resolved now. Thanks @davidbrochart !