__init__.py
dtnotation.py
gausscode.py
gaussdiagram.py
planardiagram.py
representation.py
====
pyknotid/representations/planardiagram.py:91:        import networkx as nx
pyknotid/representations/planardiagram.py:179:        import networkx as nx
pyknotid/representations/representation.py:321:        import planarity
