convertme.py

#!/usr/bin/env python                                            
"""
Convert argv[1] from list (array) to dict (object)
"""
import sys, json

OUTFILE = 'test-output.json'

with open(sys.argv[1]) as fd:
    data = json.loads(fd.read())
new = {}
for obj in data:
    new[ obj['url'] ] = {
        'type': obj['type'],
        'language': obj['language'],
        'notes': obj['notes']
        }

with open(OUTFILE, 'wb') as fd:
    json.dump(new, fd)