playwright--自动化（一）：快速上手

Playwright为现代 Web 应用程序提供可靠的端到端测试。

在JavaScript 和 TypeScript、Python、.NET和Java 中都可以使用 Playwright 本人选择python

快速上手

安装

pip install --upgrade pip
pip install playwright
playwright install

playwright 这个用来安装适用的浏览器二进制文件如：Chromium、Firefox 和 WebKit 如果不想下载谷歌开发版 可以使用自己的谷歌浏览器 其他浏览器只能用特等的开发版

playwright 默认安装位置

windows: %USERPROFILE%\AppData\Local\ms-playwright
macos: ~/Library/Caches/ms-playwright
linux: ~/.cache/ms-playwright
详细请查看：https://playwright.dev/python/docs/browsers/#installing-browsers

用法

playwright 同步

from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch(headless=False，slow_mo=50)
    page = browser.new_page()
    page.goto("https://www.baidu.com")
    print(page.title())
    browser.close()

headless=False 不使用无头浏览模式，
slow_mo=50 执行速度
playwright 异步

playwright 异步

import asyncio
from playwright.async_api import async_playwright

async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch()
        page = await browser.new_page()
        await page.goto("http://playwright.dev")
        print(await page.title())
        await browser.close()

asyncio.run(main())

详细请查看:https://playwright.dev/python/docs/intro