Reading an exact number of characters from input

[Diez B. Roggisch]

Paddy O'Loughlin schrieb:
> Hi,
> How would I use python to simply read a specific number of characters
> from standard input?
> 
> raw_input() only returns when the user inputs a new line (or some
> other special character).
> I tried
>>>> import sys
>>>> sys.stdin.read(15)
> 
> and that *returns* up to 15 characters, but it keeps accepting input
> (and doesn't return) until I press Enter.
> 
> My initial thoughts are that a function like C's fgetc would be the
> easiest way to do it, but I haven't been able to find an equivalent in
> my google search, so I was wondering if anyone here might have some
> ideas.

Maybe ncurses helps. Or you can use termios and set the terminal into 
non-canonical mode which will let you get characters as they appear, not 
only after a newline.

Diez