文档: ​​https://miyakogi.github.io/pyppeteer/index.html​​  

import asyncio
from pyppeteer import launch

async def main():
    browser = await launch(slowMo=20)
    page = await browser.newPage()
    await page.goto('https://ch3nnn.cn/')
    await page.pdf({
        "path": "example.pdf", "format": 'A4'})
    await browser.close()

asyncio.get_event_loop().run_until_complete(main())