Tkinter numeric keypad events madness

numpadmadness.py

import sys
import time
import tkinter


class NumpadmadnessWindow(tkinter.Tk):
    def __init__(self):
        super().__init__()
        l = tkinter.Label(self, text="Click here and type keys on your Numpad.\nObserve event codes on standard output.")
        l.pack(padx=50, pady=50)
        self.bind("<KeyPress>", self.keypress)
        self.bind("<KeyRelease>", self.keyrelease)

    joystick_keys_sane_platforms = {
        "Control_R": "fire",
        "KP_Insert": "fire",
        "KP_0": "fire",
        "KP_Enter": "fire",
        "Alt_R": "fire",
        "KP_Up": "up",
        "KP_8": "up",
        "KP_Down": "down",
        "KP_2": "down",
        "KP_Left": "left",
        "KP_4": "left",
        "KP_Right": "right",
        "KP_6": "right",
        "KP_Home": "leftup",
        "KP_7": "leftup",
        "KP_Prior": "rightup",
        "KP_9": "rightup",
        "KP_End": "leftdown",
        "KP_1": "leftdown",
        "KP_Next": "rightdown",
        "KP_3": "rightdown"
    }

    joystick_keys_osx = {
        524352: "fire",       # R alt
        270336: "fire",       # R control
        5374000: "fire",      # kp 0
        498073: "fire",       # kp Enter
        5963832: "up",        # kp 8
        5505074: "down",      # kp 2
        5636148: "left",      # kp 4
        5767222: "right",     # kp 6
        5832759: "leftup",    # kp 7
        6029369: "rightup",   # kp 9
        5439537: "leftdown",  # kp 1
        5570611: "rightdown", # kp 3
    }

    joystick_keys_windows_keysym_num = {
        65379: "fire",      # kp 0
        65362: "up",        # kp 8
        65364: "down",      # kp 2
        65361: "left",      # kp 4
        65363: "right",     # kp 6
        65360: "leftup",    # kp 7
        65365: "rightup",   # kp 9
        65367: "leftdown",  # kp 1
        65366: "rightdown"  # kp 3
    }

    joystick_keys_windows_keycode = {
        96: "fire",       # kp 0 (numlock)
        104: "up",        # kp 8 (numlock)
        98: "down",       # kp 2 (numlock)
        100: "left",      # kp 4 (numlock)
        102: "right",     # kp 6 (numlock)
        103: "leftup",    # kp 7 (numlock)
        105: "rightup",   # kp 9 (numlock)
        97: "leftdown",   # kp 1 (numlock)
        99: "rightdown"   # kp 3 (numlock)
    }

    def keyrelease(self, event):
        print(time.time(), "KEYRELEASE {char!r} keysym='{keysym}' keycode={keycode} keysym_num={keysym_num} state={state}".format(**vars(event))) # XXX
        if sys.platform == "darwin":
            # OSX numkeys are problematic, I try to solve this via raw keycode
            if event.keycode in self.joystick_keys_osx:
                print("JOYSTICK switch OFF:", self.joystick_keys_osx[event.keycode])
                return
        elif sys.platform == "win32":
            # Windows numkeys are also problematic, need to solve this via keysym_num OR via keycode.. (sigh)
            if event.keysym_num in self.joystick_keys_windows_keysym_num:
                print("JOYSTICK switch OFF:", self.joystick_keys_windows_keysym_num[event.keysym_num])
                return
            elif event.keycode in self.joystick_keys_windows_keycode:
                print("JOYSTICK switch OFF:", self.joystick_keys_windows_keycode[event.keycode])
                return
        # sane platforms (Linux for one) play nice and just use the friendly keysym name.
        elif event.keysym in self.joystick_keys_sane_platforms:
            print("JOYSTICK switch OFF:", self.joystick_keys_sane_platforms[event.keysym])
            return

    def keypress(self, event):
        print(time.time(), "KEYPRESS {char!r} keysym='{keysym}' keycode={keycode} keysym_num={keysym_num} state={state}".format(**vars(event)))  # XXX
        if sys.platform == "darwin":
            # OSX numkeys are problematic, I try to solve this via raw keycode
            if event.keycode in self.joystick_keys_osx:
                print("JOYSTICK switch ON:", self.joystick_keys_osx[event.keycode])
                return
        elif sys.platform == "win32":
            # Windows numkeys are also problematic, need to solve this via keysym_num OR via keycode.. (sigh)
            if event.keysym_num in self.joystick_keys_windows_keysym_num:
                print("JOYSTICK switch ON:", self.joystick_keys_windows_keysym_num[event.keysym_num])
                return
            elif event.keycode in self.joystick_keys_windows_keycode:
                print("JOYSTICK switch ON:", self.joystick_keys_windows_keycode[event.keycode])
                return
        # sane platforms (Linux for one) play nice and just use the friendly keysym name.
        elif event.keysym in self.joystick_keys_sane_platforms:
            print("JOYSTICK switch ON:", self.joystick_keys_sane_platforms[event.keysym])
            return


w = NumpadmadnessWindow()
w.mainloop()