[Boost-users] BGL python bindings: copy.copy(g) adds spurious properties

From: John Reid (j.reid_at_[hidden])
Date: 2007-06-08 06:48:46

Hi,

When a graph is copied via copy.copy(g), extra vertex and edge property 
maps are added.

import boost.graph as bgl
g = bgl.Graph()
prop = g.add_vertex_property('prop')
from copy import copy
g_copy = copy(g)
print g.vertex_properties.keys()
print g_copy.vertex_properties.keys()

Output:

g's vertex properties:       ['prop']
g_copy's vertex properties:  ['object', 'prop']

This property named 'object' contains the same values as the 'prop' 
property.

Is this a bug in the pickling support?

I have the latest version from SVN.

Thanks,
John.