from sympy import *
H,B = symbols('H, B')
H = FiniteSet('A', 'B', 'C', 'E', 'F')
B = FiniteSet('Joe', 'Jack', 'Sue', 'Jill')
N = Union(H,B)
# how would I do something like this?
for n in N:
#perform some operation
foo(n)
Addendum:
In my case, I'd actually like to iterate over the set to create nodes and
vertices in NetworkX
import networkx as nx
G = nx.DiGraph()
G.add_node("A")
G.add_node("B")
etc.
G.add_edge("A", "B")
etc.
# Then I can draw it in iPython notebook
nx.draw(G, node_size=90, node_color='Red')
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