def copy(self):
"""
"""
newCG = ChemicalGraph()
newCG = Graph.copy(self)
return newCG
def create_true_graph_copy():
'''
- <Graph>.copy() returns a true copy of the original graph
- == operator for graph objects is useless, or perhaps __eq__ isn't implemented so it falls back to "is" behavior
- This is NOT what I want if I don't want to copy attributes
'''
g = Graph([(1, 5), (5, 5)])
g.add_node(6)
g.graph['pie'] = 'apple'
g.node[1]['pet'] = 'fish'
g.edge[5][5]['sound'] = 'clink'
h = g.copy()
print(h.nodes()) # [1, 5, 6]
print(h.edges()) # [(1, 5), (5, 5)]
print(h.graph) # {'pie': 'apple'}
print(h.node) # {1: {'pet': 'fish'}, 5: {}, 6: {}}
print(h.edge) # {1: {5: {}}, 5: {1: {}, 5: {'sound': 'clink'}}, 6: {}}
print(h is g) # False
print(h == g) # False
