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Pyppeteer：如何设置 User-Agent

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在 Pyppeteer 中设置 User-Agent 头就像这样简单

pyppeteer_useragent.py
await page.setUserAgent("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
")

记住在 page.goto() 之前使用此行，以确保在发出第一个请求之前设置用户代理。

完整示例

pyppeteer_useragent.py
#!/usr/bin/env python3
import asyncio
from pyppeteer import launch

async def main():
    browser = await launch()
    page = await browser.newPage()
    await page.setUserAgent("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36")
    await page.goto('https://www.techoverflow.net', {'waitUntil': 'networkidle2'})
    # Make screenshot
    await page.screenshot({'path': 'screenshot.png'})
    # Cleanup
    await browser.close()

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