threading_bla.py

import sys
from time import sleep
from threading import Thread

def communicator():
	print('This does not print')
	sys.stdout.flush()
	while(True):
		#frame.evaluateJavaScript('document.getElementById("footer").appendChild(document.createTextNode("Hejjibejj"));')
		#fr.evaluateJavaScript('alert("Yo");')
		sleep(1)
		print('Evaluated')


print('This prints 1')

# First, create the Thread-object
t = Thread(target=communicator, args=[])

# Then, run it!
t.start()

print('This prints 2');
sleep(5)