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Python script for converting graphml (*gml) files to json
#!/usr/bin/env python
import sys
def gml_sub(blob):
lines = []
for line in blob.split('\n'):
line = line.strip()
lines.append(line)
blob = "\n".join(lines)
blob = blob.replace('\n\n', '\n')
blob = blob.replace(']\n', '},\n')
blob = blob.replace('[\n', '{')
blob = blob.replace('\n{', '\n {')
for s in ['id', 'label', 'source', 'target', 'value']:
blob = blob.replace(s, '"%s":' % s)
blob = blob.replace('\n"', ', "')
blob = blob.replace('\n}', '}')
return blob.strip('\n')
def main(graphfile):
"""
Converts GraphML file to json
Usage:
>>> python convert.py mygraph.gml
"""
with open(graphfile, 'r') as f:
blob = f.read()
blob = ''.join(blob.split('node')[1:])
nodes = blob.split('edge')[0]
edges = ''.join(blob.split('edge')[1:]).strip().rstrip(']')
nodes = gml_sub(nodes)
edges = gml_sub(edges)
print '{\n "nodes":['
print nodes.rstrip(',')
print ' ],\n "edges":['
print ' ' + edges.rstrip(',')
print ' ]\n}\n'
if __name__ == '__main__':
main(sys.argv[1])
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