Scaffolds: allow pytest run without args

[vincent-ferotin]

Here is pull request related to this thread: https://groups.google.com/forum/#!topic/pylons-devel/AIqmefG6eIE ,
to allow usage of raw py.test command (without arguments) at newly created project's root by scaffolds.

Changes add two new files to scaffolds:

• pytest.ini for pytest configuration, which set package as test path, scanning for all *.py files;
• .coveragerc for coverage configuration, setting package to cover, and omitting tests files following test* pattern (for allowing py.test --cov invocation).

[mmerickel]

I'm happy with this. I would have preferred to use setup.cfg since we use that for other things but since we don't use it anymore in the scaffolds this is an acceptable location and a bit more explicit for users to discover.

+1

[vincent-ferotin]

Thanks!

[mmerickel]

We need to rebase this on top of #2546 and update the docs accordingly. ping @stevepiercy It looks like you made that PR incompatible with these changes so can you help resolve them?

[stevepiercy]

LGTM so far. We need to update any docs that use py.test and scaffolds, which includes off the top of my head, Quick Tour, Quick Tutorial, wiki, and wiki2. @mmerickel I'll take this on and backport from master to 1.7. Weekend plans got cancelled, so I have nothing better to do.

@vincent-ferotin have you signed contributors.txt? If not, please do so, commit, and push to your branch. That should automatically update this PR.

[stevepiercy]

I created a new branch https://github.com/Pylons/pyramid/tree/vincent-ferotin-scaffolds-allow-pytest-run-without-args that replaces this PR, and gives me a place to push additional work on docs.

@vincent-ferotin please sign contributors.txt if you have not yet done so, and push the commit to that new branch. The PR #2550 will update automatically. Thank you!