[igraph] Memory liberation Python...

[Sergio Jiménez]

Hello, 
I'm having memory liberation problems using the igraph library for Python.
I intend to do a community partition of a graph and and ploting each
community in a different image file.
The way I'm doing it is the following:

# Import graph, and calculate community structure
....

#ucomms=[] list of communities to plot 

for commid in ucomms:
    try:
        print "*** Creating community[%d] = %d -- %.2f s\n" \
              % (ucomms.index(commid),commid,time()-t0)
        # build comm subgraph
        comm_nodes = [ v for (v,c) in enumerate(g.vs["comm"]) if c ==commid]
        subg = g.subgraph(comm_nodes)    
        # prepare for drawing
        fig = igraph.Plot(bbox=(1024,768))
        fig.add(subg, layout="lgl", margin=(50,50,50,50))
        fig.save("Comm_%d.png" % commid)
          del subg
          del fig                
    except e:
        print "!!! ERROR generando PNG para comunidad %d (num.nodes=%d)" % (
commid, len([v for v in g.vs if v["comm"] == commid]))
        print e
print "Done."


But every time the subgraph method is called, memory is allocated for de
object and it's never liberated, even doing explicit del.
Finally the program exit with an out of memory error.

Is there any way to liberate this memory ??

Best regards 

                Sergio 


 

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