List installed Twitch games.

list_twitch.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

try:
    import winreg
except ImportError:
    import _winreg as winreg # Python 2

# Test WOW registry
try:
    winreg.QueryReflectionKey(winreg.HKEY_LOCAL_MACHINE)
    archs = {winreg.KEY_WOW64_64KEY, winreg.KEY_WOW64_32KEY}
except NotImplemented:
    archs = {0}

twitch_games = []

for arch in archs:
    key = winreg.OpenKey(
        winreg.HKEY_LOCAL_MACHINE,
        u'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall',
        0,
        winreg.KEY_READ | arch
    )

    for i in range(winreg.QueryInfoKey(key)[0]):
        skey = winreg.EnumKey(key, i)
        with winreg.OpenKey(key, skey) as h:
            try:
                path = winreg.QueryValueEx(h, 'InstallLocation')[0]
                if u'\\Twitch\\Games Library\\' in path:
                    name = winreg.QueryValueEx(h, 'DisplayName')[0]
                    twitch_games.append((name, path))
            except OSError:
                pass

    winreg.CloseKey(key)

twitch_games.sort(key=lambda tup: tup[0].lower())

for name, path in twitch_games:
    print('%s %s' % (name.ljust(32-1, ' '), path))