Traceback of Ramses and Sacrud

Traceback

Traceback (most recent call last):
  File "/opt/pycharm-professional/helpers/pycharm/pycharm_load_entry_point.py", line 8, in <module>
    load_entry_point(dist, "console_scripts", name)()
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/scripts/pserve.py", line 58, in main
    return command.run()
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/scripts/pserve.py", line 328, in run
    global_conf=vars)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/scripts/pserve.py", line 363, in loadapp
    return loadapp(app_spec, name=name, relative_to=relative_to, **kw)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
    return loadobj(APP, uri, name=name, **kw)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
    return context.create()
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 144, in invoke
    **context.local_conf)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/util.py", line 58, in fix_call
    reraise(*exc_info)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/compat.py", line 32, in reraise
    raise e.with_traceback(tb)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/util.py", line 55, in fix_call
    val = callable(*args, **kw)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/urlmap.py", line 31, in urlmap_factory
    app = loader.get_app(app_name, global_conf=global_conf)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 350, in get_app
    name=name, global_conf=global_conf).create()
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 710, in create
    return self.object_type.invoke(self)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
    return fix_call(context.object, context.global_conf, **context.local_conf)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/util.py", line 58, in fix_call
    reraise(*exc_info)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/compat.py", line 32, in reraise
    raise e.with_traceback(tb)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/paste/deploy/util.py", line 55, in fix_call
    val = callable(*args, **kw)
  File "/home/infernion/Dev/test/raml-javascript-client/ramses-example/ramses_example/__init__.py", line 133, in main
    return config.make_wsgi_app()
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/config/__init__.py", line 951, in make_wsgi_app
    self.registry.notify(ApplicationCreated(app))
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/registry.py", line 74, in notify
    [ _ for _ in self.subscribers(events, None) ]
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/zope/interface/registry.py", line 328, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/zope/interface/adapter.py", line 596, in subscribers
    subscription(*objects)
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/pyramid/config/adapters.py", line 103, in derived_subscriber
    return subscriber(arg[0])
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/ps_alchemy/__init__.py", line 28, in models_preparing
    for k, v in models]
  File "/home/infernion/.envs/ramses_test/lib/python3.5/site-packages/ps_alchemy/__init__.py", line 28, in <listcomp>
    for k, v in models]
TypeError: 'ESMetaclass' object is not iterable