Python 诅咒从 stdin 读取单个字符会影响 print 语句的输出

发布于 2024-12-04 10:54:47 字数 469 浏览 0 评论 0原文

我正在尝试从标准输入中非阻塞读取单个字符。我已经找到了curses库的解决方案，但是当我尝试将输出写回标准输出时，我做错了一些事情。

import curses
from time import sleep

def callback(screen):
  screen.nodelay(1)
  return screen.getkey()

while 1:
  try:
    key = curses.wrapper(callback)
    print "Got keypress: ", key
  except:
    sleep(3)
    print "No Keypress"
    print "Program\nOutput"

# Prints
No Keypress
          Program
                  Output

除了缩进输出之外，一切都完美无缺。有什么办法可以解决这个问题吗？

原文

I'm trying to do a non-blocking read of a single character from stdin. I have found a solution with the curses library, but I'm doing something wrong when trying to write output back to stdout.

import curses
from time import sleep

def callback(screen):
  screen.nodelay(1)
  return screen.getkey()

while 1:
  try:
    key = curses.wrapper(callback)
    print "Got keypress: ", key
  except:
    sleep(3)
    print "No Keypress"
    print "Program\nOutput"

# Prints
No Keypress
          Program
                  Output

Everything works flawlessly with the exception of the indented output. Is there any way to fix this?

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你在看孤独的风景 2024-12-11 10:54:48

#!/usr/bin/python -tt
#youres to use
import curses
from time import sleep

def callback(screen):
  screen.nodelay(1)
  return screen.getkey()

def getkey():
  try:
    key = curses.wrapper(callback)
  except:
    key = None
  return key

#tryer
while 1:
  sleep(1)
  k= getkey()
  if k != None:
    print "goo", k
  else:
    print "foo"

#!/usr/bin/python -tt
#youres to use
import curses
from time import sleep

def callback(screen):
  screen.nodelay(1)
  return screen.getkey()

def getkey():
  try:
    key = curses.wrapper(callback)
  except:
    key = None
  return key

#tryer
while 1:
  sleep(1)
  k= getkey()
  if k != None:
    print "goo", k
  else:
    print "foo"

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