OOPS-ID OOPS-04b956e188e920d5d8ad5fe55c813a78

[Chris]

I've installed on one of my VM a launchpad.

I've succeeded also with your help to push a branch.

Now the system raises the error in the subject when I try to browser the pushed code.

I suppose this can be related with the following error:

chris@launchpad:~/launchpad/lp-branches/devel$ bin/py cronscripts/process-job-source.py IBranchScanJobSource
2016-12-27 19:25:49 INFO Creating lockfile: /var/lock/launchpad-process-job-source-IBranchScanJobSource.lock
2016-12-27 19:25:54 INFO Running through Twisted.
2016-12-27 19:25:54 INFO Running <SCAN_BRANCH branch job (1) for ~chris-t/prova/b1> (ID 2).
Traceback (most recent call last):
  File "/home/chris/launchpad/lp-sourcedeps/eggs/Twisted-13.0.0_p2-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 575, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/home/chris/launchpad/lp-sourcedeps/eggs/Twisted-13.0.0_p2-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1126, in gotResult
    _inlineCallbacks(r, g, deferred)
  File "/home/chris/launchpad/lp-sourcedeps/eggs/Twisted-13.0.0_p2-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1068, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/home/chris/launchpad/lp-sourcedeps/eggs/Twisted-13.0.0_p2-py2.7-linux-x86_64.egg/twisted/python/failure.py", line 389, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
--- <exception caught here> ---
  File "/home/chris/launchpad/lp-branches/devel/lib/lp/services/job/runner.py", line 547, in runAll
    yield self.runJobInSubprocess(job)
  File "/home/chris/launchpad/lp-sourcedeps/eggs/Twisted-13.0.0_p2-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 575, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/home/chris/launchpad/lp-branches/devel/lib/lp/services/job/runner.py", line 505, in update
    self.logger.debug('Incomplete %r', job)
  File "/usr/lib/python2.7/logging/__init__.py", line 1155, in debug
    self._log(DEBUG, msg, args, **kwargs)
  File "/usr/lib/python2.7/logging/__init__.py", line 1285, in _log
    record = self.makeRecord(self.name, level, fn, lno, msg, args, exc_info, func, extra)
  File "/usr/lib/python2.7/logging/__init__.py", line 1259, in makeRecord
    rv = LogRecord(name, level, fn, lno, msg, args, exc_info, func)
  File "/usr/lib/python2.7/logging/__init__.py", line 263, in __init__
    if (args and len(args) == 1 and isinstance(args[0], collections.Mapping)
  File "/usr/lib/python2.7/abc.py", line 145, in __instancecheck__
    return (cls.__subclasscheck__(subclass) or
  File "/usr/lib/python2.7/abc.py", line 180, in __subclasscheck__
    if issubclass(subclass, scls):
  File "/usr/lib/python2.7/abc.py", line 175, in __subclasscheck__
    if issubclass(subclass, rcls):
exceptions.TypeError: issubclass() arg 1 must be a class
2016-12-27 19:26:00 INFO 1 BranchScanJob jobs did not complete.

Thanks
Christian

[Colin Watson (cjwatson)]

We noticed this when we upgraded our systems to xenial, and I fixed it a while back as r18412 (see the attached merge proposal), although at the time I didn't put it together with this bug report. See also https://github.com/zopefoundation/zope.security/issues/26 for more gory details.