我试图让Python中一个简单的IRC客户端(如样的项目,而我学的语言)。
我有一个循环,我用它来接收并解析什么IRC服务器发送了我,但如果我使用raw_input
输入的东西,它停止循环在它的轨道死,直到我输入的东西(明显)。
我怎么能输入的东西,而不循环停止?
提前致谢。
(我不认为我需要张贴代码,我只是想输入的东西没有,而1循环停止。)
编辑:我在Windows上。
我试图让Python中一个简单的IRC客户端(如样的项目,而我学的语言)。
我有一个循环,我用它来接收并解析什么IRC服务器发送了我,但如果我使用raw_input
输入的东西,它停止循环在它的轨道死,直到我输入的东西(明显)。
我怎么能输入的东西,而不循环停止?
提前致谢。
(我不认为我需要张贴代码,我只是想输入的东西没有,而1循环停止。)
编辑:我在Windows上。
对于Windows,控制台只,使用msvcrt
模块:
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
对于Linux,该文章描述了以下解决方案,它需要termios
模块:
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)
对于跨平台的,或者如果你想有一个图形用户界面,以及,你可以使用pygame的:
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
这是最真棒的解决方案我见过1。 粘贴在这里如果链路出现故障:
#!/usr/bin/env python
'''
A Python class implementing KBHIT, the standard keyboard-interrupt poller.
Works transparently on Windows and Posix (Linux, Mac OS X). Doesn't work
with IDLE.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
'''
import os
# Windows
if os.name == 'nt':
import msvcrt
# Posix (Linux, OS X)
else:
import sys
import termios
import atexit
from select import select
class KBHit:
def __init__(self):
'''Creates a KBHit object that you can call to do various keyboard things.
'''
if os.name == 'nt':
pass
else:
# Save the terminal settings
self.fd = sys.stdin.fileno()
self.new_term = termios.tcgetattr(self.fd)
self.old_term = termios.tcgetattr(self.fd)
# New terminal setting unbuffered
self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
# Support normal-terminal reset at exit
atexit.register(self.set_normal_term)
def set_normal_term(self):
''' Resets to normal terminal. On Windows this is a no-op.
'''
if os.name == 'nt':
pass
else:
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.old_term)
def getch(self):
''' Returns a keyboard character after kbhit() has been called.
Should not be called in the same program as getarrow().
'''
s = ''
if os.name == 'nt':
return msvcrt.getch().decode('utf-8')
else:
return sys.stdin.read(1)
def getarrow(self):
''' Returns an arrow-key code after kbhit() has been called. Codes are
0 : up
1 : right
2 : down
3 : left
Should not be called in the same program as getch().
'''
if os.name == 'nt':
msvcrt.getch() # skip 0xE0
c = msvcrt.getch()
vals = [72, 77, 80, 75]
else:
c = sys.stdin.read(3)[2]
vals = [65, 67, 66, 68]
return vals.index(ord(c.decode('utf-8')))
def kbhit(self):
''' Returns True if keyboard character was hit, False otherwise.
'''
if os.name == 'nt':
return msvcrt.kbhit()
else:
dr,dw,de = select([sys.stdin], [], [], 0)
return dr != []
# Test
if __name__ == "__main__":
kb = KBHit()
print('Hit any key, or ESC to exit')
while True:
if kb.kbhit():
c = kb.getch()
if ord(c) == 27: # ESC
break
print(c)
kb.set_normal_term()
1通过由西蒙·利维D. ,一个组成部分的软件编写 ,他写和下发布的GNU宽通用公共许可证 。
这里说的linux下,用一个单独的线程窗口运行的解决方案:
import sys
import threading
import time
import Queue
def add_input(input_queue):
while True:
input_queue.put(sys.stdin.read(1))
def foobar():
input_queue = Queue.Queue()
input_thread = threading.Thread(target=add_input, args=(input_queue,))
input_thread.daemon = True
input_thread.start()
last_update = time.time()
while True:
if time.time()-last_update>0.5:
sys.stdout.write(".")
last_update = time.time()
if not input_queue.empty():
print "\ninput:", input_queue.get()
foobar()
在Linux上,这里,使这个更容易一些,如果你有在多个地方使用此代码的mizipzor的代码重构。
import sys
import select
import tty
import termios
class NonBlockingConsole(object):
def __enter__(self):
self.old_settings = termios.tcgetattr(sys.stdin)
tty.setcbreak(sys.stdin.fileno())
return self
def __exit__(self, type, value, traceback):
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, self.old_settings)
def get_data(self):
if select.select([sys.stdin], [], [], 0) == ([sys.stdin], [], []):
return sys.stdin.read(1)
return False
下面介绍如何使用:此代码将打印出不断增长,直到你按下ESC的计数器。
with NonBlockingConsole() as nbc:
i = 0
while 1:
print i
i += 1
if nbc.get_data() == '\x1b': # x1b is ESC
break
我想诅咒库可以提供帮助。
import curses
import datetime
stdscr = curses.initscr()
curses.noecho()
stdscr.nodelay(1) # set getch() non-blocking
stdscr.addstr(0,0,"Press \"p\" to show count, \"q\" to exit...")
line = 1
try:
while 1:
c = stdscr.getch()
if c == ord('p'):
stdscr.addstr(line,0,"Some text here")
line += 1
elif c == ord('q'): break
"""
Do more things
"""
finally:
curses.endwin()
随着python3.3以上可以使用asyncio
模块在这个答案提及。 你将不得不重新因子你的代码,虽然与工作asyncio
。 提示使用python asyncio.create_server例如用户输入
我会做什么米奇Chan说,但我会用unicurses
,而不是正常的诅咒。 Unicurses
是普遍的(适用于所有或至少几乎所有的操作系统)