如何为Playwright异步run_browser函数设置返回类型注解？

你需要从playwright.async_api导入对应的类型，同时从typing模块导入Tuple来标注元组形式的返回类型。修改后的代码如下：

import asyncio
from typing import Tuple
from playwright.async_api import async_playwright, Playwright, BrowserContext

async def run_browser() -> Tuple[BrowserContext, Playwright]: 
    p = await async_playwright().start()
    browser = await p.chromium.launch(headless=False)
    context = await browser.new_context(java_script_enabled=True, locale='pt-br')
    return context, p

• Playwright对应async_playwright().start()返回的实例类型
• BrowserContext对应browser.new_context()返回的上下文类型
• Tuple[BrowserContext, Playwright]明确标注函数返回的是包含这两个类型的元组

内容的提问来源于stack exchange，提问作者FábioRB