json_uuid.py

import uuid
import json
import random
import datetime
id = str(uuid.uuid1())
actions = ['purchase1', 'purchase2', 'version']

print json.dumps({'date' : str(datetime.datetime.now()), 'id' : id, 'action' : 'install'})

for i in xrange(10):
    print json.dumps({'date' : str(datetime.datetime.now()), 'id' : id, 'action' : random.choice(actions)})


print json.dumps({'date' : str(datetime.datetime.now()), 'id' : id, 'action' : 'uninstall'})