在Linux上的python中侦听全局键组合

我不知道任何旨在扩展的库.然而,正如你的链接所说,pykeylogger的后端提供了一个如何做到的例子,但它似乎有点过于复杂,你需要.

pykeylogger使用python-xlib模块捕获X显示器上的按键.有人已经创建了一个如何在pastebin上进行此操作的较轻的示例.下面是它原样复制的来源.

from Xlib.display import Display
from Xlib import X
from Xlib.ext import record
from Xlib.protocol import rq

disp = None

def handler(reply):
    """ This function is called when a xlib event is fired """
    data = reply.data
    while len(data):
        event, data = rq.EventField(None).parse_binary_value(data, disp.display, None, None)

        # KEYCODE IS FOUND USERING event.detail
        print event.detail

        if event.type == X.KeyPress:
            # BUTTON PRESSED
            print "pressed"
        elif event.type == X.KeyRelease:
            # BUTTON RELEASED
            print "released"

# get current display
disp = Display()
root = disp.screen().root

# Monitor keypress and button press
ctx = disp.record_create_context(
            0,
            [record.AllClients],
            [{
                    'core_requests': (0, 0),
                    'core_replies': (0, 0),
                    'ext_requests': (0, 0, 0, 0),
                    'ext_replies': (0, 0, 0, 0),
                    'delivered_events': (0, 0),
                    'device_events': (X.KeyReleaseMask, X.ButtonReleaseMask),
                    'errors': (0, 0),
                    'client_started': False,
                    'client_died': False,
            }])
disp.record_enable_context(ctx, handler)
disp.record_free_context(ctx)

while 1:
    # Infinite wait, doesn't do anything as no events are grabbed
    event = root.display.next_event()

您将不得不扩展处理程序以满足您的需要,而不仅仅是打印到屏幕,然后将其转换为单独的线程.

(痛苦的)替代方案是直接听键盘,而不依赖于外部库或X会话.在linux中,一切都是文件,您的键盘输入将在/ dev/input中,您可以将其作为文件读取,例如open('/dev/input/even2', 'rb'),在后台.这不建议,因为它需要升级权限,找出哪个设备是键盘,然后创建自己的键映射.只是想让你知道必要时有什么可能.

编辑:还使用Python gtk3在X上找到了全局键绑定,这似乎有更多示例优点.