Add appveyor support

[nicoddemus]

No description provided.

[nicoddemus]

Any guess as to why the failures in py26 and py34-pytest26? 😟

[RonnyPfannschmidt]

Yes, its a ordering issue in the internal statemachine

Please install setuptools-scm with tox

[nicoddemus]

Hmmm I see it is already mentioned in the deps section in the tox.ini file:

[testenv]
changedir=testing
deps =
    pycmd
    setuptools_scm # to avoid .eggs
    pytest24: pytest~=2.4.0
    pytest25: pytest~=2.5.0

    pytest26: pytest~=2.6.1
    pytest27: pytest~=2.7.2
    pexpect: pexpect

[RonnyPfannschmidt]

problem is that tox runs setup.py in the host env -so you need both tox and setuptools_scm

[nicoddemus]

problem is that tox runs setup.py in the host env -so you need both tox and setuptools_scm

Got it, thanks! 😄

Let's see how that fares.

[nicoddemus]

Hmmm same error. I will try to reproduce this at home, but meanwhile do you have any other tips?

[RonnyPfannschmidt]

thats a state ordering bug - its hard to trigger on normal fast computers, but seems quite noticable on the ci systems, the pr is good