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我正在尝试使用 evdev 将控制器作为输入设备。当我退出程序时，我收到一条错误消息，指出删除方法（超级）至少需要一个参数。我看过，但无法找到正确处理此问题的解决方案。

该程序：

# import evdev
from evdev import InputDevice, categorize, ecodes

# creates object 'gamepad' to store the data
# you can call it whatever you like
gamepad = InputDevice('/dev/input/event5')

# prints out device info at start
print(gamepad)

# evdev takes care of polling the controller in a loop
for event in gamepad.read_loop():
    # filters by event type
    if event.type == ecodes.EV_KEY and event.code == 308:
        break
    if event.type == ecodes.EV_ABS and event.code == 1:
        print(event.code, event.value)
    if event.type == ecodes.EV_ABS and event.code == 0:
        print(event.code, event.value)
    # print(categorize(event))
    if event.type == ecodes.EV_KEY:
        print(event.code, event.value)

当我使用特定键时，我会中断循环，从而导致以下错误消息：

Exception TypeError: TypeError('super() takes at least 1 argument (0 given)',) in <bound method InputDevice.__del__ of InputDevice('/dev/input/event5')> ignored

当我退出使用时也会发生同样的情况^C。任何想法如何正确处理出口？

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1 回答 1

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简单地说，evdev 正在等待事件发生，而您突然中断循环。

为了正确退出执行，请删除 break 语句，关闭设备并结束脚本。

[...]
for event in gamepad.read_loop():
    if event.type == ecodes.EV_KEY and event.code == 308:
        gamepad.close()   #method of ..yourpythonlib/evdev/device.py
        quit()            
[...]

^C为了在没有错误的情况下快速退出，您仍然需要使用“try-except 块”关闭 evdev 输入设备。

for event in gamepad.read_loop():
   try:
       [...] if event [...]
   except KeyboardInterrupt:
       gamepad.close()
       raise
于 2020-10-06T15:52:38.523 回答