betweenness.py

import json
import networkx as nx
import romanesco

betweenness_centrality = {
    'inputs': [
        {'name': 'G',
         'type': 'graph',
         'format': 'networkx'},
        {'name': 'node',
         'type': 'string',
         'format': 'text'}
    ],
    'outputs': [
        {'name': 'measure',
         'type': 'number',
         'format': 'number'}
    ],
    'script':
'''
from networkx import betweenness_centrality

measure = betweenness_centrality(G)[node]
'''
}


with open('/home/dan/Downloads/alphabet-network.json', 'rb') as infile:
    clique_graph = infile.read()

output = romanesco.run(betweenness_centrality, inputs={'G': {'format': 'clique.json',
                                                             'data': clique_graph},
                                                       'node': {'format': 'text',
                                                                'data': '55ba5019f8883b5bf35f3e30'}})

print output