pubs2json.py

import json
import urllib

pubs = [26840485, 26548914, 26076426, 26025440, 25953808, 25848958, 25825834, 25799414, 25409504, 25387460, 25386338, 25371418, 25218180, 25179232, 25143291, 24995530, 24859302, 24812216, 24349448, 24213777, 24176582, 23818857, 23724086, 23613759, 23571589, 23558134, 23259572, 22864262, 22522955, 22186876, 23300833, 23082106, 21705601, 21793736, 21861847, 21565804, 21398548, 22174796, 20843733, 20565938, 20299126, 20105305, 19542273, 19716705, 19283063, 19015912, 19081724, 18366328, 17984072, 11825690, 11435081, 11011763, 9831592]

args = {'apikey' : '191d24f81e61c107bca103f7d6a9ca10',
        'db'     : 'pubmed',
        'id'     : ",".join([str(s) for s in pubs]),
        'retmax' : 100,
        'max'    : 10,
        'start'  : 0}

params = urllib.urlencode(args)
f = urllib.urlopen("http://entrezajax.appspot.com/esummary?" + params)
print f.read()