Traceback (most recent call last):


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/web.py", line 1592, in _execute

result = yield result


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1133, in run

value = future.result()


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/concurrent.py", line 261, in result

raise_exc_info(self._exc_info)


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1141, in run

yielded = self.gen.throw(*exc_info)


 "/usr/local/anaconda2/lib/python2.7/site-packages/bokeh/server/views/doc_handler.py", line 55, in get

session = yield self.get_session()


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1133, in run

value = future.result()


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/concurrent.py", line 261, in result

raise_exc_info(self._exc_info)


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1141, in run

yielded = self.gen.throw(*exc_info)


 "/usr/local/anaconda2/lib/python2.7/site-packages/bokeh/server/views/session_handler.py", line 77, in get_session

session = yield self.application_context.create_session_if_needed(session_id, self.request)


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1133, in run

value = future.result()


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/concurrent.py", line 261, in result

raise_exc_info(self._exc_info)


 "/usr/local/anaconda2/lib/python2.7/site-packages/tornado/gen.py", line 1147, in run

yielded = self.gen.send(value)


 "/usr/local/anaconda2/lib/python2.7/site-packages/bokeh/server/contexts.py", line 215, in create_session_if_needed

self._application.initialize_document(doc)


 "/usr/local/anaconda2/lib/python2.7/site-packages/bokeh/application/application.py", line 183, in initialize_document

doc.validate()


 "/usr/local/anaconda2/lib/python2.7/site-packages/bokeh/document/document.py", line 884, in validate

refs = r.references()
AttributeError: 'function' object has no attribute 'references'

Traceback (most recent call last):


 "aclgen.py", line 543, in <module>

app.run(main)


 "/usr/local/lib/python2.7/dist-packages/absl/app.py", line 299, in run

_run_main(main, args)


 "/usr/local/lib/python2.7/dist-packages/absl/app.py", line 250, in _run_main

sys.exit(main(argv))


 "aclgen.py", line 534, in main

self.context = multiprocessing.get_context()
AttributeError: 'module' object has no attribute 'get_context'