I just tried to plot a multigraph with setting positions of vertices,
G=Graph({'a':['a','b','b','b','e'],'b':['c','d','e'],'c':
['c','d','d','d'],'d':['e']})
G.show(pos={'a':[0,1],'b':[1,1],'c':[2,0],'d':[1,0],'e':[0,0]})
and got an error
File "/home/alec/sage/local/lib/python2.5/site-packages/sage/graphs/
graph_plot.py", line 459, in set_edges
odd_y = M[1] + d
NameError: global name 'd' is not defined
Without pos both show and plot work OK.
Alec Mihailovs
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