英文:
signal to stop script in python
问题
我正在尝试使用Python进行信号处理，并创建了一些基本脚本，但似乎无法正确运行。有人可以解释一下我哪里出错了吗？
import signal
import sys
def signal_abort_script(signal, frame):
"""
Signal handler function to catch KeyboardInterrupt (Ctrl+C) and exit the script gracefully.
"""
sys.exit()
def main():
# 设置信号处理程序以捕获 KeyboardInterrupt (Ctrl+C)
signal.signal(signal.SIGINT, signal_abort_script)
# 持续打印"not stopped forever"
while True:
print("not stopped forever")
if __name__ == "__main__":
main()
英文:
i am trying out signals for the first time with python and i created some basic script that just cant seem to get it right. Can somebody explain where im making the mistake?
import signal
import sys
def signal_abort_script(signal, frame):
"""
Signal handler function to catch KeyboardInterrupt (Ctrl+C) and exit the script gracefully.
"""
sys.exit()
def main():
# Set up the signal handler to catch KeyboardInterrupt (Ctrl+C)
signal.signal(signal.SIGINT, signal_abort_script)
# print not stopped forever
while True:
print("not stopped forever")
if __name__ == "__main__":
main()
答案1
得分: 1
只是加了一个睡眠和打印语句来查看结果
结果还可以
$ winpty python test.py
永远不会停止
永远不会停止
按下Ctrl+C
import signal
import sys
import time
def signal_abort_script(signal, frame):
"""
信号处理函数，用于捕获KeyboardInterrupt（Ctrl+C）并优雅地退出脚本。
"""
print("按下Ctrl+C")
sys.exit()
def main():
# 设置信号处理程序以捕获KeyboardInterrupt（Ctrl+C）
signal.signal(signal.SIGINT, signal_abort_script)
# 打印永远不会停止
while True:
time.sleep(1)
print("永远不会停止")
if __name__ == "__main__":
main()
英文:
just included the sleep and a print statement to just see the result
result was ok
$ winpty python test.py
not stopped forever
not stopped forever
pressed ctrl C
import signal
import sys
import time
def signal_abort_script(signal, frame):
"""
Signal handler function to catch KeyboardInterrupt (Ctrl+C) and exit the script gracefully.
"""
print("pressed ctrl C")
sys.exit()
def main():
# Set up the signal handler to catch KeyboardInterrupt (Ctrl+C)
signal.signal(signal.SIGINT, signal_abort_script)
# print not stopped forever
while True:
time.sleep(1)
print("not stopped forever")
if __name__ == "__main__":
main()
答案2
得分: 0
好的，以下是代码的翻译：
import threading
import time
from pynput.keyboard import Listener, KeyCode
startStopButton = KeyCode(char='s')
terminateButton = KeyCode(char='\x03')
running = False
program_running = True
def start():
global running
running = True
def stop():
global running
running = False
def exit_script():
global running, program_running
running = False
program_running = False
def print_hi():
while program_running:
if running:
print("hi")
time.sleep(1) # 根据需要调整延迟
def on_press(key):
if key == startStopButton:
if running:
stop()
else:
start()
elif key == terminateButton:
exit_script()
listener.stop()
print("按下 's' 键开始，按下 'ctrl+c' 退出。")
print_hi_thread = threading.Thread(target=print_hi)
print_hi_thread.start()
with Listener(on_press=on_press) as listener:
listener.join()
希望对你有帮助！
英文:
okay in the meantime i got what i wanted to achieve with a bit of help of chatgpt. Now i can start and stop the script.
import threading
import time
from pynput.keyboard import Listener, KeyCode
startStopButton = KeyCode(char='s')
terminateButton = KeyCode(char='\x03')
running = False
program_running = True
def start():
global running
running = True
def stop():
global running
running = False
def exit_script():
global running, program_running
running = False
program_running = False
def print_hi():
while program_running:
if running:
print("hi")
time.sleep(1) # Adjust the delay as needed
def on_press(key):
if key == startStopButton:
if running:
stop()
else:
start()
elif key == terminateButton:
exit_script()
listener.stop()
print("Press 's' to start, 'ctrl+c' to exit.")
print_hi_thread = threading.Thread(target=print_hi)
print_hi_thread.start()
with Listener(on_press=on_press) as listener:
listener.join()
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