wryview 0.4.0

Comprehensive Python binding for wry — cross-platform embeddable webview, no event loop required.

wryview

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⚠️ Status: Pre-Alpha

wryview is in early development. The API may change without notice between versions. It was created to serve QtWebView, a Qt webview widget project, and the author is a Rust beginner — the binding code may not be idiomatic. Feedback, bug reports, and contributions (code or ideas) are very welcome.

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📖 Introduction

wryview is a Python binding for wry, the cross-platform WebView rendering library used by Tauri. It wraps the full wry API — no event loop, no window management, just the webview.

Built on PyO3 and distributed as pre-compiled wheels (no Rust toolchain required for end users).

✨ Features

• Zero Event Loop — wryview creates the webview as a child of your window. Your GUI framework owns the event loop. No conflicts, no deadlocks.
• Full wry API — Navigation, JavaScript execution, IPC (window.ipc.postMessage), custom protocols, cookies, drag & drop, proxy, devtools, zoom, and more.
• Cross-Platform — Windows (WebView2), macOS (WKWebView), Linux (WebKitGTK). Same API everywhere.
• Framework-Agnostic — Embed into Qt, tkinter, wxPython, or any native window via HWND/NSView/XID.
• Pre-Built Wheels — pip install wryview just works. No Rust, no cmake, no system deps (beyond the OS webview).

⬇️ Installation

pip install wryview

Windows: WebView2 Runtime is required (pre-installed on Windows 10 1803+, or download).
macOS: WKWebView is built-in.
Linux: Requires libwebkit2gtk-4.1-dev and related packages (see wry docs).

🧑‍💻 Usage

from wryview import WebView

# Embed as a child of any native window (default)
wv = WebView(parent_hwnd, url="https://example.com", devtools=True)

# Fill an independent window — wry manages size via WM_SIZE / layout
wv = WebView(anchor_hwnd, url="https://example.com", as_child=False)

# JS execution
wv.eval_js("document.body.style.background = '#333'")

# JS → Python IPC (JS side: window.ipc.postMessage('hello'))
wv.set_ipc_handler(lambda msg: print(f"JS says: {msg}"))

# Navigation callback
wv.set_on_page_load(lambda event, url: print(f"{event}: {url}"))

# Custom protocol (intercept requests asynchronously)
def my_handler(method, uri, headers, body, respond):
    # respond(status, headers, body) must be called from any thread
    respond(200, {"Content-Type": "text/html"}, b"<h1>Hello from Python!</h1>")

wv = WebView(hwnd, custom_protocols={"myapp": my_handler}, url="myapp://localhost/")

📦 API Summary

Category	Methods
Content	load_url, load_html, load_url_with_headers, reload, url
JavaScript	eval_js, eval_js_with_callback
IPC	set_ipc_handler, clear_ipc_handler
Callbacks	set_on_navigation, set_on_page_load, set_on_title_changed, set_on_new_window, set_drag_drop_handler
Geometry	set_bounds, bounds
Appearance	set_visible, set_background_color, focus
DevTools	open_devtools, close_devtools, is_devtools_open
Cookies	cookies, cookies_for_url, set_cookie, delete_cookie
Other	zoom, print, clear_all_browsing_data

Full constructor options: transparent, background_color, incognito, user_agent, autoplay, initialization_script, proxy, back_forward_gestures, clipboard, and more.

🧩 Used By

• QtWebView — A cross-platform webview widget for Qt (PySide/PyQt), powered by wryview. Embeds a wry WebView as a native child window inside any Qt widget, with a seamless JS bridge and WSGI support.

🤝 Contributing

The author is a Rust beginner — if you see something that could be improved, please open an issue or PR. All contributions (code, ideas, documentation) are welcome.

License

Copyright (c) 2026 Xiaosu.

Distributed under the terms of the Mozilla Public License Version 2.0.