On Feb 19, 2017, at 9:04 AM, Axel Rau <Axel.Rau@Chaos1.DE> wrote:

After upgrading twisted from 16.6.0 to 17.1.0 I’m getting:

Starting caldavd. Traceback (most recent call last): File "/usr/local/bin/twistd", line 6, in <module> from pkg_resources import load_entry_point File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3019, in <module> @_call_aside File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3003, in _call_aside f(*args, **kwargs) File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3032, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 655, in _build_master ws.require(__requires__) File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 963, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 849, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'Automat>=0.3.0' distribution was not found and is required by Twisted /usr/local/etc/rc.d/caldavd: WARNING: failed to start caldavd

The FreeBSD twisted port, which my port depends on has following run-dependencies for 17.1.0: zope.interface>=3.6.0 constantly>=15.1 incremental>=16.10.1 which are satisfied.

Is this another variant of the import race problem on FreeBSD?

Not all twisted applications require Automat, hence it seems to be unconditionally required here: https://github.com/twisted/twisted/blob/a2200c3bf53beaa2763fe13bc6a670d7cf94... <https://github.com/twisted/twisted/blob/a2200c3bf53beaa2763fe13bc6a670d7cf941dea/src/twisted/python/_setup.py>

This is happening well before import; Twisted added Automat as a dependency. If the FreeBSD port of Twisted is installing Twisted 17.1.0 without Automat, then it is broken and needs to be fixed. -glyph