Hi Steve, It seems something was wrong with your attachment - all I see is: ./netneut_right.svg
In reply to what you wrote, I was not looking for speed, efficiency or a way to eliminate a bottleneck, but to get as close to possible to a "drop in solution" to reproduce kbhit() and getch(). Why? Because as part of my teaching job I have to grade student submissions. The task my students had this week was a chat program and in order not to interfere with the actual sending of data over a socket, they need to use a non-blocking solution to get user input. Since they all used kbhit() and getch() under Windows, I needed to be able to make minimal changes to their submitted code. I cannot penalize them for using Windows, but on the other hand, re-writing their code would defeat the purpose of checking their homework. On Tue, 9 Jan 2018 18:37:38 -0500 Steve Litt <sl...@troubleshooters.com> wrote: > On Tue, 9 Jan 2018 10:36:51 +0200 > Shlomo Solomon <shlomo.solo...@gmail.com> wrote: > > > Since import msvcrt in Python is Windows specific, I adapted some > > code I found to provide kbhit() and getch() in Python under Linux. > > > > I'm attaching KBHIT.py which replaces msvcrt and a small program to > > demonstrate how to use it - KBHIT-test.py. > > > > The KBHIT.py documentation includes usage instructions and also a > > link to the code I borrowed and (I hope) improved. > > > > > > I've been using the attached code in my UMENU2 program so menu choices > can be selected with a single keystroke and no Enter key necessary. > What you've added is kbhit() so you can do non-blocking keyboard > reads, and of course the ability to handle both Posix and Windows > transparently. > > If I were to rewrite your KBHIT.py program, I'd rewrite it to carry a > lot less state. I'd get rid of _init_(), and I'd make getch(), kbhit() > and set_normal_term() class functions so the only reason for making > it a class is namespacing. The world's fastest typist is what, 200 > wpm which is about 3.1/second: There's plenty of time to go raw and > then go cooked for each character retrieved. It doesn't seem as > efficient, but the bottleneck is the typist and going raw then cooked > on each keystroke makes your code simpler, eliminates state, and > probably decreases the need for set_norm_term(). > > SteveT > > Steve Litt > December 2017 featured book: Thriving in Tough Times > http://www.troubleshooters.com/thrive -- Shlomo Solomon http://the-solomons.net Claws Mail 3.11.1 - KDE 4.14.30 - Dolphin 4.14.3 - LINUX Mageia 5 _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
