Python samples

All Python samples use generated bindings and an installed dynwinrt runtime. Install dynwinrt and dynwinrt-codegen from PyPI, or build both from this checkout, then run each sample's generate.ps1 before run.ps1.

Sample	Demonstrates
async-file-io	Temporary files, storage interfaces, and native asyncio
ocr-image	Self-contained image creation, bitmap decoding, and Windows OCR
app-lifecycle-single-instance	Multi-process activation redirection with Windows App SDK AppLifecycle
cryptography	SHA-256, IBuffer, text encoding, and hex conversion
interface-implementation	Standalone Python-backed WinRT interfaces, native IBackgroundTask calls, and multi-interface lifetime
device-watcher	Device enumeration and thread-safe typed event subscriptions
text-to-speech	asyncio, speech synthesis, media playback, and typed events
app-notification	Windows App SDK bootstrap, notification builder, display, activation, and cleanup
winui-hello-world	Minimal WinUI 3 XAML, controls, events, STA, and projected lifetime management
custom-winmd-codegen	Generate, type, and import a Python package from an external WinMD
winui-tic-tac-toe	XAML, a Python-defined WinUI control, native layout overrides, and Fluent resources
winui-tic-tac-toe-code-only	A larger programmatic WinUI application without XAML

The Windows App SDK samples require matching metadata, runtime packages, and a bootstrap DLL. Their winapp.yaml configuration is already checked in, so winapp restore prepares those inputs and the sample generate.ps1 creates Python bindings from the resulting metadata lockfile. The stock Windows samples auto-detect the newest installed Windows SDK Windows.winmd.