Fix python 3 version used by travis #1016
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Travis now uses [xenial](https://blog.travis-ci.com/2019-04-15-xenial-default-build-environment) as the default build environment. The CI uses system site packages, but this option only works with the default python 3 version. In xenial this version is [python 3.5](https://packages.ubuntu.com/xenial/python3). Signed-off-by: Shane Loretz<[email protected]>
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Travis build passes: https://travis-ci.org/ros/catkin/builds/555875881 |
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I'll merge this without waiting for an approval since it only changes If I overlooked something the worst case is it makes the travis CI on the |
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Travis now uses xenial as the default build environment. The CI uses system site packages, but this option only works with the default python 3 version. In xenial this version is python 3.5.
This PR bumps the python version to 3.5, and uses
system_site_packages: truesince that's what the travis documentation does.