Fix Python – How to hide output of subprocess

I’m using eSpeak on Ubuntu and have a Python 2.7 script that prints and speaks a message:
import subprocess
text = ‘Hello World.’
print text
subprocess.call([‘espeak’, text])

eSpeak produces the desired sounds, but clutters the shell with some errors (ALSA lib…, no socket connect) so i cannot easily read what was printed earlier. Exit code is 0….