Odd failure on 18.3 (missing files, but they are there)

Originally reported by: ionelmc (Bitbucket: ionelmc, GitHub: ionelmc)

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I got this minboggling failure on travis: https://travis-ci.org/ionelmc/pytest-benchmark/jobs/79025407

If I force 18.2 it works fine: https://travis-ci.org/ionelmc/pytest-benchmark/jobs/79030569

Doesn't looks like setuptools might cause that but the downgrade solves it. Any idea about what's going on?

AFAIK pip will use the correct working directory and that file should be there. Is there any sandbox code in setuptools that might affect this?

The setup.py is here: https://github.com/ionelmc/pytest-benchmark/blob/fb397cb5866eaa76d918e5741724a6b504a73eb3/setup.py

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• Bitbucket: https://bitbucket.org/pypa/setuptools/issue/425

Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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If I had to guess, it's probably related to the refactor of findall, which I didn't include in the changelog, though the error you're getting sure is strange.

Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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I was going to take the release offline as I won't be online for many hours. If another maintainer feels it's appropriate to pull that build, please do so.

Original comment by ionelmc (Bitbucket: ionelmc, GitHub: ionelmc):

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Well I can't seem to reproduce this issue locally. I don't get what's different in Travis ...

Original comment by ionelmc (Bitbucket: ionelmc, GitHub: ionelmc):

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More details: https://travis-ci.org/ionelmc/pytest-benchmark/jobs/79045015#L202

Looks like the created sdist doesn't have the CHANGELOG.rst file.

Could it be some ordering bug? os.listdir don't return files in consistent order.

Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Restore old behavior for calculating the base. Fixes failing test and fixes #425.

Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Issue #426 was marked as a duplicate of this issue.