René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Travis CI failing on slycot builds","articleBody":"PR #276 Travis CI checks failed due to an issue with the slycot builds.  See [Travis CI build 400.01, line 954](https://travis-ci.org/python-control/python-control/jobs/497800396). I did a quick check and it looks like there is a problem with `skbuild`:\r\n```\r\nTraceback (most recent call last):\r\n  File \"setup.py\", line 8, in \u003cmodule\u003e\r\n    from skbuild import setup\r\nModuleNotFoundError: No module named 'skbuild'\r\n0.03s$ if [ $SLYCOT != \"\" ]; then python -c \"import slycot\"; fi\r\n```\r\nNot sure if this is something transient or something that has changed in `scikit` (and not quite sure why `slycot` needs `scikit`).","author":{"url":"https://github.com/murrayrm","@type":"Person","name":"murrayrm"},"datePublished":"2019-02-24T16:44:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/277/python-control/issues/277"}