Paul Durack added the comment: @r.david.murray fair enough, so it's an external lib that is the problem..
It does appear that similar issues have been appearing fairly recently across the github-o-sphere, some of these instances are listed at https://github.com/jupyter/jupyter/issues/253#issue-221849527 I've managed to solve my usability problem by commenting out a `#warnings.simplefilter('default')` line in the vcs package, which gets me back up and working, but still seems like there is a tangle up somewhere.. Thanks for taking the time to educate me ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30063> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com