import signal
def timeout(signum, frame):
raise IOError, "Aaaaaah! Tempo scaduto !"
try:
signal.signal(signal.SIGALRM, timeout)
signal.alarm(3) # Tempo in secondi
mssql = _mssql.connect(host,'sa','')
mssql.close()
signal.alarm(0)
except IOError:
...