python pynput处理键盘

Question

我试着用这个上下文制作一个键盘句柄：

当f1按下“开始”(按下并释放此键: the )和按下f2时，将状态设置为false以停止按下键( the )：

from pynput.keyboard import Key, Listener

STATUS = True

def on_release(key):
    if key == Key.f1:
        # Stop listener
        STATUS = False
    if key == key.f2:
        STATUS = True

def main():
    with Listener(
        on_release=on_release) as listener:
            listener.join()
    while STATUS:
        keyboard.press('q')
        keyboard.release('q')
        keyboard.press('w')
        keyboard.release('w')
        keyboard.press('w')
        keyboard.release('w')

当我运行时，我得到了这个错误：

raceback (most recent call last):
  File "ap.py", line 1, in <module>
    from pynput.keyboard import Key, Listener
  File "/usr/local/lib/python3.8/dist-packages/pynput/__init__.py", line 40, in <module>
    from . import keyboard
  File "/usr/local/lib/python3.8/dist-packages/pynput/keyboard/__init__.py", line 31, in <module>
    backend = backend(__name__)
  File "/usr/local/lib/python3.8/dist-packages/pynput/_util/__init__.py", line 76, in backend
    raise ImportError('this platform is not supported: {}'.format(
ImportError: this platform is not supported: ('failed to acquire X connection: Bad display name ""', DisplayNameError(''))

Try one of the following resolutions:

 * Please make sure that you have an X server running, and that the DISPLAY environment variable is set correctly

编辑

我已经使用了pip3安装pynput

Answer 1

在运行脚本之前，尝试使用以下命令连接到X服务器

xhost +

例如，创建像这样的bash脚本(script.bash)

DISPLAY=:0
xhost +
python3 yourscript.py

跑动

bash script.bash