Move py.code to pytest.code

[pytestbot]

Originally reported by: holger krekel (BitBucket: hpk42, GitHub: hpk42)

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Often fixes to pytest actually need to happen in the pylib, namely py.code. Moreover, there probably are very few uses of the py.code.* API outside of pytest and pypy. Therefore i think it makes sense to remove the dependency of pytest on py.code and move the namespace to pytest.code.

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• Bitbucket: https://bitbucket.org/pytest-dev/pytest/issue/103

[RonnyPfannschmidt]

this is mostly a code+test copy followed by adjustments, ask me on irc for details

[Bjwebb]

After poking around in py.code during the PyConUK sprint, I'm going to take a look at making this move.

[RonnyPfannschmidt]

its rather tricky, i treif before but abadonded due to py.code having a lot of interaction via py.code usage internally - be carefull

[Bjwebb]

I've made an attempt of this at master...Bjwebb:issue-103-move-py-code This now successfully runs the test suite on Python2.7 and 3.4, but there are still flakes errors - https://travis-ci.org/Bjwebb/pytest/builds/81460589

In order to get pytest.code I also moved pytest.py to pytest/__init__.py which is still causing problems for some of the other versions. Is there a better way to handle this?

[RonnyPfannschmidt]

there should be no pytest.code for now,

its preferable that we have _pytest.code for now as a internal API thats allowed to change

[nicoddemus]

@Bjwebb any news on this? Would you mind opening a PR targeting features, even if not ready to be merged yet?