Screenshot of a particular size with Python and Puppeteer

Install Python Puppeteer Implementation and Chromium

pip install pyppeteer
pyppeteer-install

Take a screenshot of the resized viewport and save to file

import asyncio
from pyppeteer import launch

async def main():
    browser = await launch()
    page = await browser.newPage()

    await page.setViewport({'width': 480, 'height': 240})
    await page.goto('https://www.bbc.co.uk/news/business-63709754')
    await page.screenshot({'path': "size.png"})

    await browser.close()

asyncio.run(main())

Find out how to take a full-page screenshot with Python and Puppeteer.