Arch Linux

Description:
Fails to depend on some python package called migrate

Additional info:
* package version(s) - buildbot-0.8.4p2-1
* config and/or log files etc.
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/twisted/internet/base.py", line 426, in _continueFiring
callable(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/buildbot/scripts/runner.py", line 36, in async
d = defer.maybeDeferred(f, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 133, in maybeDeferred
result = f(*args, **kw)
File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 964, in unwindGenerator
return _deferGenerator(f(*args, **kwargs), Deferred())
--- <exception caught here> ---
File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 866, in _deferGenerator
result = g.next()
File "/usr/lib/python2.7/site-packages/buildbot/scripts/runner.py", line 491, in upgradeMaster
m.check_master_cfg(expected_db_url=config['db']))
File "/usr/lib/python2.7/site-packages/buildbot/scripts/runner.py", line 356, in check_master_cfg
from buildbot.master import BuildMaster
File "/usr/lib/python2.7/site-packages/buildbot/master.py", line 40, in <module>
from buildbot.db import connector, exceptions
File "/usr/lib/python2.7/site-packages/buildbot/db/connector.py", line 20, in <module>
from buildbot.db import pool, model, changes, schedulers, sourcestamps
File "/usr/lib/python2.7/site-packages/buildbot/db/model.py", line 21, in <module>
import migrate
exceptions.ImportError: No module named migrate


Steps to reproduce:
Try to run upgrade-master. migrate not only isn't a dependency that the package should have flagged, but it doesn't appear to exist anywhere in the arch package listing. I set this to High because there's no longer a workaround. If the dependency existed, I could just install it myself and be done with it. However, I'm stuck.