Automat 0.6.0 fixes the issue. (-;Am 19.05.2017 um 07:21 schrieb glyph@twistedmatrix.com:On May 18, 2017, at 9:02 AM, Axel Rau <Axel.Rau@Chaos1.DE> wrote:calendarserver-9.0 (or some of its requirements down the dependency path to attrs) needs a patch like @attr.s(hash=True) as described here:Is this still true after the release of https://pypi.python.org/pypi/Automat/0.6.0 (following only hours after the relevant / problematic attrs release?)