if(users.has_key(mess.group(1))):
          time_ = int(phpsysfuncs.time.strftime("%S")) * 0.100;
          users[mess.group(1)] = time_ 
         else :
          time_ = users[mess.group(1)]
          print "User "+mess.group(1)+" has already messaged, last message: ", int(phpsysfuncs.time.strftime("%S")) * 0.100 - time_


// OUTPUT

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "bot.py", line 57, in ?
    time_ = users[mess.group(1)]
KeyError: '`alex'