The reversion of 2.8.7-2 is not correct. It breaks the DEP-8 tests in Ubuntu where there is only Python 3.5 (and will break Debian as soon as Python 3.4 is dropped).
By reverting this, you find that there is no Python 3 module in python3-pytest and `python3.5 -m pytest` fails. Please restore the change from 2.8.7-2 and find another way to fix the problem. Personally, I don't think we should have any Python version specific /usr/bin scripts, but I suppose we need /usr/bin/py.test and /usr/bin/py.test-3 for backward compatibility. Better that people get in the habit of invoking such tools via -m.
