Hack to run multiple selenium browser at the same time

many_ffs.py

import multiprocessing
import time
from browserdriver import BrowserDriver

def readfile(fname):
	with open(fname) as f:
		content = f.read()
		#print("Read value " + content + " from file " + fname)
		return content

def writefile(fname, content):
	print('Writing value ' + content + ' to file ' + fname)
	with open(fname, 'w') as f:
		f.write(content)

fname = 'click_value.txt'
def readvalue():
	return readfile(fname)

def writevalue(value):
	writefile(fname, value)

def worker():
	browser = BrowserDriver('http://www.wikipedia.org')
	oldvalue = ''
	while True:
		value = readvalue()
		if value=='QUIT':
			break
		if value==oldvalue:
			time.sleep(1)
			continue
		try:
			browser.click_link(value)
		except:
			pass
		oldvalue = value
	browser.close()

if __name__ == '__main__':
	writevalue('')

	jobs = []
	for i in range(3):
		p = multiprocessing.Process(target=worker)
		jobs.append(p)
		p.start()
	while True:
		linktext = raw_input("Click link:")
		if not linktext:
			writevalue('QUIT')
			time.sleep(5)
			break
		writevalue(linktext)