def _random_name(size=6):
 return ('cloud-test-' + ''.join((random.choice((string.ascii_lowercase + string.digits)) for x in range(size))))

def _random_name ( size = 6 ) : return ( 'cloud-test-' + '' . join ( ( random . choice ( ( string . ascii_lowercase + string . digits ) ) for x in range ( size ) ) ) )
generates a radom cloud instance name .