How to use the pynput.keyboard.KeyCode function in pynput

def normalize(event):
            if not isinstance(event[0], tuple):
                return normalize(((event[0],), event[1]))
            key, is_pressed = event
            return (
                tuple(
                    pynput.keyboard.KeyCode.from_char(key)
                    if isinstance(key, six.string_types)
                    else key.value if key in pynput.keyboard.Key
                    else key
                    for key in event[0]),
                is_pressed)

def run(self):
        while self.execute_count > 0:
            with open(self.file_name, 'r', encoding='utf-8') as file:
                keyboard_exec = KeyBoardController()
                line = file.readline()
                while line:
                    obj = json.loads(line)
                    if obj['name'] == 'keyboard':
                        if obj['event'] == 'press':
                            keyboard_exec.press(KeyCode.from_vk(obj['vk']))
                            time.sleep(0.01)

                        elif obj['event'] == 'release':
                            keyboard_exec.release(KeyCode.from_vk(obj['vk']))
                            time.sleep(0.01)
                    line = file.readline()
                startExecuteBtn['text'] = '开始回放'
                startExecuteBtn['state'] = 'normal'
            self.execute_count = self.execute_count - 1

PAGE_DOWN = virtual_keys.page_down
    HOME = virtual_keys.home
    END = virtual_keys.end

    # Number pad keys
    # pynput currently only exposes these for Windows, so we'll map them to
    # equivalent characters and numbers instead.
    MULTIPLY = KeyCode(char="*")
    ADD = KeyCode(char="+")
    SEPARATOR = KeyCode(char=".")  # this is locale-dependent.
    SUBTRACT = KeyCode(char="-")
    DECIMAL = KeyCode(char=".")
    DIVIDE = KeyCode(char="/")
    NUMPAD0 = KeyCode(char="0")
    NUMPAD1 = KeyCode(char="1")
    NUMPAD2 = KeyCode(char="2")
    NUMPAD3 = KeyCode(char="3")
    NUMPAD4 = KeyCode(char="4")
    NUMPAD5 = KeyCode(char="5")
    NUMPAD6 = KeyCode(char="6")
    NUMPAD7 = KeyCode(char="7")
    NUMPAD8 = KeyCode(char="8")
    NUMPAD9 = KeyCode(char="9")

    # Function keys
    # F13-20 don't work on X11 with pynput because they are not usually
    # part of the keyboard map.
    F1 = virtual_keys.f1
    F2 = virtual_keys.f2
    F3 = virtual_keys.f3
    F4 = virtual_keys.f4
    F5 = virtual_keys.f5

LEFT = virtual_keys.left
    RIGHT = virtual_keys.right
    PAGE_UP = virtual_keys.page_up
    PAGE_DOWN = virtual_keys.page_down
    HOME = virtual_keys.home
    END = virtual_keys.end

    # Number pad keys
    # pynput currently only exposes these for Windows, so we'll map them to
    # equivalent characters and numbers instead.
    MULTIPLY = KeyCode(char="*")
    ADD = KeyCode(char="+")
    SEPARATOR = KeyCode(char=".")  # this is locale-dependent.
    SUBTRACT = KeyCode(char="-")
    DECIMAL = KeyCode(char=".")
    DIVIDE = KeyCode(char="/")
    NUMPAD0 = KeyCode(char="0")
    NUMPAD1 = KeyCode(char="1")
    NUMPAD2 = KeyCode(char="2")
    NUMPAD3 = KeyCode(char="3")
    NUMPAD4 = KeyCode(char="4")
    NUMPAD5 = KeyCode(char="5")
    NUMPAD6 = KeyCode(char="6")
    NUMPAD7 = KeyCode(char="7")
    NUMPAD8 = KeyCode(char="8")
    NUMPAD9 = KeyCode(char="9")

    # Function keys
    # F13-20 don't work on X11 with pynput because they are not usually
    # part of the keyboard map.
    F1 = virtual_keys.f1
    F2 = virtual_keys.f2

def key_event(key, is_press):
            if not self.recording or self.running:
                return True

            if is_press:
                print('keyboard press:', key)
                message = 'key down'
            else:
                print('keyboard release:', key)
                message = 'key up'

            if isinstance(key, Key):
                print('Key:', key.name, key.value.vk)
                name = key.name
            elif isinstance(key, KeyCode):
                print('KeyCode:', key.char, key.vk)
                name = key.char
            else:
                assert False


            delay = self.now_ts - self.ttt
            self.ttt = self.now_ts
            if not self.record:
                delay = 0

            self.record.append([delay, 'EK', message, name])

            text = self.tnumrd.GetLabel()
            text = text.replace(' actions recorded', '')
            text = str(eval(text) + 1)

MULTIPLY = KeyCode(char="*")
    ADD = KeyCode(char="+")
    SEPARATOR = KeyCode(char=".")  # this is locale-dependent.
    SUBTRACT = KeyCode(char="-")
    DECIMAL = KeyCode(char=".")
    DIVIDE = KeyCode(char="/")
    NUMPAD0 = KeyCode(char="0")
    NUMPAD1 = KeyCode(char="1")
    NUMPAD2 = KeyCode(char="2")
    NUMPAD3 = KeyCode(char="3")
    NUMPAD4 = KeyCode(char="4")
    NUMPAD5 = KeyCode(char="5")
    NUMPAD6 = KeyCode(char="6")
    NUMPAD7 = KeyCode(char="7")
    NUMPAD8 = KeyCode(char="8")
    NUMPAD9 = KeyCode(char="9")

    # Function keys
    # F13-20 don't work on X11 with pynput because they are not usually
    # part of the keyboard map.
    F1 = virtual_keys.f1
    F2 = virtual_keys.f2
    F3 = virtual_keys.f3
    F4 = virtual_keys.f4
    F5 = virtual_keys.f5
    F6 = virtual_keys.f6
    F7 = virtual_keys.f7
    F8 = virtual_keys.f8
    F9 = virtual_keys.f9
    F10 = virtual_keys.f10
    F11 = virtual_keys.f11
    F12 = virtual_keys.f12

Key.enter: "enter",
    Key.f1: "F1",
    Key.f2: "F2",
    Key.f3: "F3",
    Key.f4: "F4",
    Key.f5: "F5",
    Key.f6: "F6",
    Key.f7: "F7",
    Key.f8: "F8",
    Key.f9: "F9",
    Key.f10: "F10",
    Key.f11: "F11",
    Key.f12: "F12",
}

pynput_rgb_keys.update({KeyCode(char=item): item for item in alphanumeric})

if __name__ == '__main__':
    print(len(alphanumeric) + len(functionkeys) + len(modifiers) + len(keypad) + len(controls))

# part of the keyboard map. They are set here to avoid some warnings
    # and because the Windows keyboard supports them.
    F21 = KeyCode.from_vk(0xffd1)
    F22 = KeyCode.from_vk(0xffd2)
    F23 = KeyCode.from_vk(0xffd3)
    F24 = KeyCode.from_vk(0xffd4)

    # Multimedia keys
    # Retrieved from /usr/include/X11/XF86keysym.h on Debian 9.
    # These should work on Debian-based distributions like Ubunutu, but
    # might not work using different X11 server implementations because the
    # symbols are vendor-specific.
    # Any errors raised when typing these or any other keys will be caught
    # and logged.
    VOLUME_UP = KeyCode.from_vk(0x1008FF13)
    VOLUME_DOWN = KeyCode.from_vk(0x1008FF11)
    VOLUME_MUTE = KeyCode.from_vk(0x1008FF12)
    MEDIA_NEXT_TRACK = KeyCode.from_vk(0x1008FF17)
    MEDIA_PREV_TRACK = KeyCode.from_vk(0x1008FF16)
    MEDIA_PLAY_PAUSE = KeyCode.from_vk(0x1008FF14)
    BROWSER_BACK = KeyCode.from_vk(0x1008FF26)
    BROWSER_FORWARD = KeyCode.from_vk(0x1008FF27)


class DarwinKeySymbols(BaseKeySymbols):
    """
    Symbols for Darwin from pynput.

    This class includes some extra symbols to prevent errors in
    typeables.py.

    All extras will be disabled (key code of -1).

# Number pad keys
    # pynput currently only exposes these for Windows, so we'll map them to
    # equivalent characters and numbers instead.
    MULTIPLY = KeyCode(char="*")
    ADD = KeyCode(char="+")
    SEPARATOR = KeyCode(char=".")  # this is locale-dependent.
    SUBTRACT = KeyCode(char="-")
    DECIMAL = KeyCode(char=".")
    DIVIDE = KeyCode(char="/")
    NUMPAD0 = KeyCode(char="0")
    NUMPAD1 = KeyCode(char="1")
    NUMPAD2 = KeyCode(char="2")
    NUMPAD3 = KeyCode(char="3")
    NUMPAD4 = KeyCode(char="4")
    NUMPAD5 = KeyCode(char="5")
    NUMPAD6 = KeyCode(char="6")
    NUMPAD7 = KeyCode(char="7")
    NUMPAD8 = KeyCode(char="8")
    NUMPAD9 = KeyCode(char="9")

    # Function keys
    # F13-20 don't work on X11 with pynput because they are not usually
    # part of the keyboard map.
    F1 = virtual_keys.f1
    F2 = virtual_keys.f2
    F3 = virtual_keys.f3
    F4 = virtual_keys.f4
    F5 = virtual_keys.f5
    F6 = virtual_keys.f6
    F7 = virtual_keys.f7
    F8 = virtual_keys.f8
    F9 = virtual_keys.f9