Convert
=======

>>> from networkx import *
>>> from networkx.convert import *
>>> from networkx.operators import *
>>> from networkx.generators.classic import barbell_graph,cycle_graph

Simple Graphs
--------------

>>> G=barbell_graph(10,3)

Dict of dicts
~~~~~~~~~~~~~

>>> dod=to_dict_of_dicts(G)
>>> GG=from_dict_of_dicts(dod)
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> sorted(G.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dod)
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> sorted(G.edges())==sorted(GW.edges())
True
>>> GI=Graph(dod)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> sorted(G.edges())==sorted(GI.edges())
True


>>> G=barbell_graph(10,3)

Dict of lists
~~~~~~~~~~~~~

>>> dol=to_dict_of_lists(G)
>>> GG=from_dict_of_lists(dol)
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> sorted(G.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dol)
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> sorted(G.edges())==sorted(GW.edges())
True
>>> GI=Graph(dol)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> sorted(G.edges())==sorted(GI.edges())
True

DiGraphs
--------

>>> G=cycle_graph(10)

Dict of dicts
~~~~~~~~~~~~~

>>> dod=to_dict_of_dicts(G)
>>> GG=from_dict_of_dicts(dod)
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> sorted(G.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dod)
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> sorted(G.edges())==sorted(GW.edges())
True
>>> GI=Graph(dod)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> sorted(G.edges())==sorted(GI.edges())
True


>>> G=cycle_graph(10,create_using=DiGraph())

Dict of lists
~~~~~~~~~~~~~

>>> dol=to_dict_of_lists(G)
>>> GG=from_dict_of_lists(dol,create_using=DiGraph())
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> sorted(G.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dol,create_using=DiGraph())
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> sorted(G.edges())==sorted(GW.edges())
True
>>> GI=DiGraph(dol)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> sorted(G.edges())==sorted(GI.edges())
True


XGraph
------

>>> G=cycle_graph(10)
>>> e=G.edges()
>>> source=[u for u,v in e]
>>> dest=[v for u,v in e]
>>> ex=zip(source,dest,source)
>>> G=XGraph()
>>> G.add_edges_from(ex)

Dict of dicts
~~~~~~~~~~~~~

>>> dod=to_dict_of_dicts(G)
>>> GG=from_dict_of_dicts(dod,create_using=XGraph())
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> sorted(G.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dod,create_using=XGraph())
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> sorted(G.edges())==sorted(GW.edges())
True
>>> GI=XGraph(dod)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> sorted(G.edges())==sorted(GI.edges())
True


Dict of lists
~~~~~~~~~~~~~

>>> dol=to_dict_of_lists(G)
>>> GG=from_dict_of_lists(dol,create_using=XGraph())

dict of lists throws away edge data so set it to none
>>> enone=[(u,v,None) for (u,v,d) in G.edges()]
>>> sorted(G.nodes())==sorted(GG.nodes())
True
>>> enone==sorted(GG.edges())
True
>>> GW=from_whatever(dol,create_using=XGraph())
>>> sorted(G.nodes())==sorted(GW.nodes())
True
>>> enone==sorted(GW.edges())
True
>>> GI=XGraph(dol)
>>> sorted(G.nodes())==sorted(GI.nodes())
True
>>> enone==sorted(GI.edges())
True


with multiedges and self loops

>>> G=cycle_graph(10)
>>> e=G.edges()
>>> source=[u for u,v in e]
>>> dest=[v for u,v in e]
>>> ex=zip(source,dest,source)
>>> XG=XGraph()
>>> XG.add_edges_from(ex)
>>> XGM=XGraph(multiedges=True)
>>> XGM.add_edges_from(ex)
>>> XGM.add_edge(0,1,2) # multiedge
>>> XGS=XGraph(selfloops=True)
>>> XGS.add_edges_from(ex)
>>> XGS.add_edge(0,0,100) # self loop


Dict of dicts
~~~~~~~~~~~~~

with self loops, OK

>>> dod=to_dict_of_dicts(XGS)
>>> GG=from_dict_of_dicts(dod,create_using=XGraph(selfloops=True))
>>> sorted(XGS.nodes())==sorted(GG.nodes())
True
>>> sorted(XGS.edges())==sorted(GG.edges())
True
>>> GW=from_whatever(dod,create_using=XGraph(selfloops=True))
>>> sorted(XGS.nodes())==sorted(GW.nodes())
True
>>> sorted(XGS.edges())==sorted(GW.edges())
True
>>> GI=XGraph(dod,selfloops=True)
>>> sorted(XGS.nodes())==sorted(GI.nodes())
True
>>> sorted(XGS.edges())==sorted(GI.edges())
True


Dict of lists
~~~~~~~~~~~~~
with self loops, OK

>>> dol=to_dict_of_lists(XGS)
>>> GG=from_dict_of_lists(dol,create_using=XGraph(selfloops=True))

dict of lists throws away edge data so set it to none
>>> enone=[(u,v,None) for (u,v,d) in XGS.edges()]
>>> sorted(XGS.nodes())==sorted(GG.nodes())
True
>>> enone==sorted(GG.edges())
True
>>> GW=from_whatever(dol,create_using=XGraph(selfloops=True))
>>> sorted(XGS.nodes())==sorted(GW.nodes())
True
>>> enone==sorted(GW.edges())
True
>>> GI=XGraph(dol,selfloops=True)
>>> sorted(XGS.nodes())==sorted(GI.nodes())
True
>>> enone==sorted(GI.edges())
True

Dict of dicts
~~~~~~~~~~~~~

with multiedges, not OK


Dict of lists
~~~~~~~~~~~~~
with multiedges, OK, but better write as DiGraph else you'll get double edges