Paddy O'Loughlin wrote:
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.
Terminal I/O via stdin is often line buffered, and for very good
reasons. If, after executing sys.stdin.read(15) I typed 20 "A"s,
then 19 backspaces, then 19 "a"s, what would you want the result to be?
Now that you've answered that, how would a system that provided
you that behavior allow the other answer to someone who wanted
the opposite.
sys.stdin is not a keyboard driver.
--Scott David Daniels
scott.dani...@acm.org
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