Python Input from keyboard

[MonkeeSage]

utab wrote:
> I want to read some input continuously from keyboard and then I would
> like to process these input.
>
> I have a code like this but getting errors, I would like to terminate
> when there is an empty string in the input, why is not this easy as the
> "cin" or "scanf". I had to search for even this easy operation. Is
> there a way to send EOF signal to terminate input(ctrl+??????)

You can send a signal (check the signal module in the docs), but you
can also just do what you wanted:

x = []
y = []
while True:
  msg = 'input x and y values :   '
  uin = raw_input(msg).strip()
  if not uin:
    print 'you have not entered x or y, quiting'
    break
  else:
    xt, yt = uin.split(' ', 1)
    x.append(float(xt))
    y.append(float(yt))

for i in range(len(x)):
  print x[i]

Regards,
Jordan