flat logs

import json
f = open('lw-2011-2015.json')
data = json.load(f)

table = []

for k in data:
    time = int(k)
    for message in data[k]:
        if message[1] in ["ACTION","PRIVMSG"]:
            m = [message[1], message[2]+time, message[3], message[4]]
            table.append(m)

data = None
table.sort(key=lambda message: message[1])

outfile = open('logs.json', 'a')

last = 0
for message in table:
    if last>message[1]:
         raise Exception(last, message[1])
    last = message[1]
    outfile.write(json.dumps(message, separators=(',',':')))
    outfile.write("\n")