As another data point from Mac, with a DIFFERENT set of errors, see https://groups.google.com/d/msg/sage-release/KYiD_QSJjBs/ApfxGOXjBwAJ and the there-attached failures which look like this:
File "/Users/Sage/sage-8.7.beta7/local/lib/python2.7/site-packages/sage/databases/oeis.py", line 196, in _fetch raise IOError("%s\nError fetching %s." % (msg, url)) IOError: <urlopen error unknown url type: https> Error fetching https://oeis.org/search?q=3%2C+7%2C+15%2C+1&start=0&fmt=text&n=4. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.