Parallelism in one line

parallelism_in_one_line.py

import urllib2
from multiprocessing.dummy import Pool as ThreadPool

urls = [
	'http://www.python.org',
	'http://www.python.org/about/',
	'http://www.onlamp.com/pub/a/python/2003/04/17/metaclasses.html',
	'http://www.python.org/doc/',
	'http://www.python.org/download/',
	'http://www.python.org/getit/',
	'http://www.python.org/community/',
	'https://wiki.python.org/moin/',
	'http://planet.python.org/',
	'https://wiki.python.org/moin/LocalUserGroups',
	'http://www.python.org/psf/',
	'http://docs.python.org/devguide/',
	'http://www.python.org/community/awards/'
	# etc.. 
	]

# Make the Pool of workers
pool = ThreadPool(4)

# Open the urls in their own threads
# and return the results
results = pool.map(urllib2.urlopen, urls)

#close the pool and wait for the work to finish 
pool.close()
pool.join()