keyutil.py

from Xlib.keysymdef import latin1
from functools import reduce
from Xlib import X

def get_posmap(keymap, disp):

    posmap = {}
    for i, row in enumerate(keymap):
        for j, key in enumerate(row):
            posmap[keycode(key, disp)] = (i, j)

    return posmap

def initkeys(keymap, disp, root, mask=None):

    return [
        initkey(
            keycode(key, disp),
            root,
            mask
        ) for key in reduce(lambda x, y: x + y, keymap)
    ]

def initkey(code, root, mask=None):

    if mask == 'Windows':
        root.grab_key(
            code,
            X.Mod4Mask,
            1,
            X.GrabModeAsync,
            X.GrabModeAsync
        )
    else:
        root.grab_key(
            code,
            X.ControlMask | X.Mod1Mask,
            1,
            X.GrabModeAsync,
            X.GrabModeAsync
        )
        root.grab_key(
            code,
            X.ControlMask | X.Mod1Mask | X.Mod2Mask,
            1,
            X.GrabModeAsync,
            X.GrabModeAsync
        )

    return code

def keycode(key, disp):
    return disp.keysym_to_keycode(
        getattr(
            latin1,
            'XK_{}'.format(key)
        )
    )