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

From: Douglas Gregor (doug.gregor_at_[hidden])
Date: 2007-06-15 17:11:26

On Jun 8, 2007, at 6:48 AM, John Reid wrote:

> 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?

Definitely a bug, which was in the "unpickling" routines. I believe  
I've fixed this in Subversion.

        - Doug