Hi,

Thanks fro the prompt reply. 

I might consider refactoring the code by using the graph.save function.

To that end, if I save a graph in an xml format, with older versions of graph_tool (e.g., 2.32.2) is it still guaranteed that all the property maps will be stored correctly with it?  With such an old version I cannot save it in the most new formats.

Thanks a lot!
Helen




On Dec 27, 2014, at 10:05 PM, ... <offonoffoffonoff@gmail.com> wrote:

    graph.save('filename.xml')

On Dec 27, 2014 9:45 PM, "Helen Lampesis" <eukolomnimonitos@gmail.com> wrote:
Hi everyone,

The following code snippet gives me a TypeError and I am wondering if you have any suggestion.

------------------------------------------------
import graph_tool as gt
import pickle 

g = gt.Graph()
pickle.dump(g, open('test_file', 'w’))
------------------------------------------------

The error: TypeError: coercing to Unicode: need string or buffer, _io.BytesIO found

I am working on Yosemite OS with graph_tool 2.2.35 (installed via macports).


Thank you very much and happy new year!!
Helen



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