multiprocessing.Poolを使ってHTTPリクエストを多重に投げる。（スクレイピングとかには絶対使わないこと）

httprequest_multiprocessing.py

import json
import urllib2
import httplib2
import multiprocessing

url='url'
data = json.dumps({'id':'username', 'password':'password'})

def start_process():
    print 'Starting', multiprocessing.current_process().name

def worker(num):
    print 'Worker:', num

    http=httplib2.Http()
    header_data={'Content-Type': 'application/json'}
    response, content = http.request(url, 'POST', 
		    headers=header_data, body=data)
    print(response)
    print(content)
    return

if __name__ == '__main__':
    
    pool_size = multiprocessing.cpu_count()
    print pool_size

    pool = multiprocessing.Pool(processes=pool_size)
    pool_outputs = pool.map_async(worker, range(100))
    pool.close() # no more tasks
    pool.join()  # wrap up current tasks