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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