I am trying to make a simple IRC client in Python (as kind of a project while I learn the language).

I have a loop that I use to receive and parse what the IRC server sends me, but if I use raw_input to input stuff, it stops the loop dead in its tracks until I input something (obviously).

How can I input something without the loop stopping?

Thanks in advance.

(I don't think I need to post the code, I just want to input something without the while 1 loop stopping.)

EDIT: I'm on Windows.

解决方案

For Windows, console only, use the msvcrt module:

import msvcrt
num = 0
done = False

while not done:

print(num)
num += 1
if msvcrt.kbhit():
print "you pressed",msvcrt.getch(),"so now i will quit"
done = True

For Linux, this article describes the following solution, it requires the termios module:

import sys

import select

import tty

import termios

def isData():

return select.select([sys.stdin], [], [], 0) == ([sys.stdin], [], [])
old_settings = termios.tcgetattr(sys.stdin)
try:
tty.setcbreak(sys.stdin.fileno())
i = 0
while 1:
print(i)
i += 1
if isData():
c = sys.stdin.read(1)
if c == '\x1b': # x1b is ESC
break

finally:

termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)

For cross platform, or in case you want a GUI as well, you can use Pygame:

import pygame

from pygame.locals import *

def display(str):

text = font.render(str, True, (255, 255, 255), (159, 182, 205))
textRect = text.get_rect()
textRect.centerx = screen.get_rect().centerx
textRect.centery = screen.get_rect().centery
screen.blit(text, textRect)
pygame.display.update()
pygame.init()
screen = pygame.display.set_mode( (640,480) )
pygame.display.set_caption('Python numbers')
screen.fill((159, 182, 205))
font = pygame.font.Font(None, 17)
num = 0
done = False
while not done:
display( str(num) )
num += 1
pygame.event.pump()
keys = pygame.key.get_pressed()
if keys[K_ESCAPE]:
done = True