[tor-bugs] #23033 [Obfuscation/BridgeDB]: BridgeDB's tests are failing due to Twisted Trial changing the way modules are called

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#23033: BridgeDB's tests are failing due to Twisted Trial changing the way modules
are called
-------------------------------------+-------------------------------------
     Reporter:  isis                 |      Owner:  isis
         Type:  defect               |     Status:  new
     Priority:  High                 |  Milestone:
    Component:                       |    Version:
  Obfuscation/BridgeDB               |   Keywords:  bridgedb-test,
     Severity:  Normal               |  bridgedb-ci
Actual Points:                       |  Parent ID:  #23032
       Points:                       |   Reviewer:
      Sponsor:  SponsorM             |
-------------------------------------+-------------------------------------
 This is happening after the upgrade to Debian 9, because Twisted was
 upgraded from 14.0.2 to 16.6.0. Relative imports of helper functions in
 the unittests directory [https://travis-
 ci.org/isislovecruft/bridgedb/jobs/256269715 are now broken]:

 {{{
 [ERROR]

 Traceback (most recent call last):
   File "/home/travis/virtualenv/python2.7.13/lib/python2.7/site-
 packages/twisted/trial/runner.py", line 602, in loadByNames
     things.append(self.findByName(name))
   File "/home/travis/virtualenv/python2.7.13/lib/python2.7/site-
 packages/twisted/trial/runner.py", line 405, in findByName
     return filenameToModule(name)
   File "/home/travis/virtualenv/python2.7.13/lib/python2.7/site-
 packages/twisted/trial/runner.py", line 96, in filenameToModule
     return _importFromFile(fn)
   File "/home/travis/virtualenv/python2.7.13/lib/python2.7/site-
 packages/twisted/trial/runner.py", line 119, in _importFromFile
     module = imp.load_source(moduleName, fn, fd)
   File "./test/test_translations.py", line 14, in <module>
     from .https_helpers import DummyRequest
 exceptions.ValueError: Attempted relative import in non-package
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23033>
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