saw thils for 'make`in the master branch. it was not reproduceable running make again so far.

Writing /tmp/easy_install-w443A9/setuptools-34.1.1/setup.cfg                                                                    
Running setuptools-34.1.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-w443A9/setuptools-34.1.1/egg-dist-tmp-9naPm6
Traceback (most recent call last):
  File "setup.py", line 142, in <module>                                                                 
    "Topic :: Internet :: WWW/HTTP :: Dynamic Content"                                                    
  File "/usr/lib/python2.7/distutils/core.py", line 151, in setup                  
    dist.run_commands()                                        
  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd) 
  File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command                               
    cmd_obj.run()                                              
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/develop.py", line 36, in run self.install_for_development()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/develop.py", line 150, in install_for_development
    self.process_distribution(None, self.dist, not self.no_deps)                                       
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 757, in process_distribution self.easy_install(dist.as_requirement())
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 674, in easy_install
    return self.install_item(spec, dist.location, tmpdir, deps)                                               
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 700, in install_item
    dists = self.install_eggs(spec, download, tmpdir)                                                     
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 881, in install_eggs
    return self.build_and_install(setup_script, setup_base)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1120, in build_and_install
    self.run_setup(setup_script, setup_base, args)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1106, in run_setup
    run_setup(setup_script, args)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 258, in run_setup
    raise
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 198, in setup_context
    yield
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 169, in save_modules
    saved_exc.resume()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 144, in resume
    six.reraise(type, exc, self._tb)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 157, in save_modules
    yield saved
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 198, in setup_context
    yield
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 255, in run_setup
    DirectorySandbox(setup_dir).run(runner)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 285, in run
    return func()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 253, in runner
    _execfile(setup_script, ns)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/sandbox.py", line 47, in _execfile
    exec(code, globals, locals)
  File "/tmp/easy_install-w443A9/setuptools-34.1.1/setup.py", line 191, in <module>

  File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
    _setup_distribution = dist = klass(attrs)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 320, in __init__
    _Distribution.__init__(self, attrs)
  File "/usr/lib/python2.7/distutils/dist.py", line 287, in __init__
    self.finalize_options()
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 387, in finalize_options
    ep.load()(self, ep.name, value)
  File "/srv/mediagoblin.latest/lib/python2.7/site-packages/setuptools/dist.py", line 166, in check_specifier
    except packaging.specifiers.InvalidSpecifier as error:
AttributeError: 'module' object has no attribute 'specifiers'
Makefile:123: recipe for target 'bin/python' failed
make: *** [bin/python] Error 1

this error happened with two different videos in two different formats (avi and webm)

[2012-06-22 22:22:36,020: INFO/MainProcess] Got task from broker: mediagoblin.processing.task.ProcessMedia[7e73cf15-8594-41c7-93f4-163bcbb662e0]
[2012-06-22 22:23:07,291: INFO/PoolWorker-2] Initializing VideoTranscoder...
[2012-06-22 22:23:29,388: INFO/PoolWorker-2] Discovering...
[2012-06-22 22:23:31,666: INFO/PoolWorker-2] Done
[2012-06-22 22:23:33,999: WARNING/PoolWorker-2] Traceback (most recent call last):
[2012-06-22 22:23:34,229: WARNING/PoolWorker-2] File "/srv/http/mediagoblin/mediagoblin/mediagoblin/media_types/video/transcoders.py", line 441, in __discovered
[2012-06-22 22:23:34,704: WARNING/PoolWorker-2] raise Exception('Could not discover {0}'.format(self.source_path))
[2012-06-22 22:23:34,787: WARNING/PoolWorker-2] Exception
[2012-06-22 22:23:34,804: WARNING/PoolWorker-2] :
[2012-06-22 22:23:34,804: WARNING/PoolWorker-2] Could not discover /srv/http/mediagoblin/mediagoblin/user_dev/media/queue/media_entries/7e73cf15-8594-41c7-93f4-163bcbb662e0/Gurren_Lagann_HD_Creditless_Opening_1.webm
[2012-06-22 22:23:34,880: INFO/PoolWorker-2] Terminating MainLoop
[2012-06-22 22:23:34,880: DEBUG/PoolWorker-2] Saving medium...
[2012-06-22 22:23:35,316: DEBUG/PoolWorker-2] Saved medium
[2012-06-22 22:23:51,120: WARNING/PoolWorker-2] No idea what happened here, but it failed: AttributeError("VideoTranscoder instance has no attribute 'dst_data'",)
[2012-06-22 22:23:55,970: ERROR/MainProcess] Task mediagoblin.processing.task.ProcessMedia[7e73cf15-8594-41c7-93f4-163bcbb662e0] raised exception: AttributeError("VideoTranscoder instance has no attribute 'dst_data'",)
Traceback (most recent call last):
  File "/srv/http/mediagoblin/mediagoblin/lib/python2.7/site-packages/celery-2.5.3-py2.7.egg/celery/execute/trace.py", line 181, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/srv/http/mediagoblin/mediagoblin/mediagoblin/processing/task.py", line 52, in run
    manager['processor'](entry)
  File "/srv/http/mediagoblin/mediagoblin/mediagoblin/media_types/video/processing.py", line 88, in process_video
    width=transcoder.dst_data.videowidth,
AttributeError: VideoTranscoder instance has no attribute 'dst_data'

The audio and video media types both write to temporary files instead of using the workbench... the workbench was designed for this though as a place to put files during processing that get removed when things are done.

The NamedTemporaryFile bits should be changed over to use the workbench unless there's good reason not to, and the end of these files' processing routines should call:

workbench.destroy_self()