Traceback (most recent call last):

 "dependencygraph.py", line 627, in <module>
demo()

 "dependencygraph.py", line 421, in demo
malt_demo()

 "dependencygraph.py", line 451, in malt_demo
tree = dg.tree()

 "dependencygraph.py", line 281, in tree
return Tree(word, [self._tree(i) for i in deps])

 "dependencygraph.py", line 281, in <listcomp>
return Tree(word, [self._tree(i) for i in deps])

 "dependencygraph.py", line 265, in _tree
word = node['word']KeyError: 'word'
Traceback (most recent call last):


 "/opt/conda/lib/python3.6/asyncio/base_events.py", line 1045, in create_server

sock.bind(sa)
OSError: [Errno 99] Cannot assign requested address
