JoinNode fails with AttributeError: 'module' object has no attribute 'has_path'

[thomas.nickson]

Hey All,

I'm trying to move from iterating over subjects with preproc and registration to putting the subjects back in to groups 'down stream' with a joinnode but I get the following error:

Traceback (most recent call last):
  File "fslWyethICA.py", line 352, in <module>
    connections.write_graph(graph2use='exec')
  File "/usr/lib/python2.6/site-packages/nipype/pipeline/engine.py", line 542, in write_graph
    graph = generate_expanded_graph(deepcopy(graph))
  File "/usr/lib/python2.6/site-packages/nipype/pipeline/utils.py", line 592, in generate_expanded_graph
    and nx.has_path(graph_in, inode, node)]
AttributeError: 'module' object has no attribute 'has_path'

My code is the following:

https://gist.github.com/thelxinoe/4df88d01a60967a7e331

Is there anyway to get more information on what the problem is. I can't even generate a graph so it's hard to work out why it might be failing.

Thanks!

[Satrajit Ghosh]

hi tom,

what version of networkx do you have. this looks like a change in the api for nx.

cheers,

satra

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[thomas.nickson]

Networkx is version 1.5

Thanks,

Tom

[Satrajit Ghosh]

hi tom,

looks like we may have used an api call that was introduced in networkx 1.6. any chance you can use a more recent version? i won't have the time to replace that call till sometime next week.

could you please open an issue as well? we will have to either replace that call or change the minimum requirements for networkx.

cheers,

satra

[Thomas Nickson]

Excellent, I upgraded to 1.6 and it works!

I'll open an issue.

Thanks,

Tom