requests-html是一个类似于requests的python http client，但是会下载一个无界面chromium，从而可以执行js。虽然它会自动下载chromium，但是相关的依赖却不会下载。所以直接运行便会报错。
Traceback (most recent call last):
File "1.py", line 4, in <module>
r.html.render()
File "/usr/local/lib/python3.6/site-packages/requests_html.py", line 572, in render
self.session.browser # Automatycally create a event loop and browser
File "/usr/local/lib/python3.6/site-packages/requests_html.py", line 680, in browser
self._browser = self.loop.run_until_complete(pyppeteer.launch(headless=True, args=['--no-sandbox']))
File "/usr/lib64/python3.6/asyncio/base_events.py", line 467, in run_until_complete
return future.result()
File "/usr/local/lib/python3.6/site-packages/pyppeteer/launcher.py", line 243, in launch
return await Launcher(options, **kwargs).launch()
File "/usr/local/lib/python3.6/site-packages/pyppeteer/launcher.py", line 160, in launch
self.browserWSEndpoint = self._get_ws_endpoint()
File "/usr/local/lib/python3.6/site-packages/pyppeteer/launcher.py", line 178, in _get_ws_endpoint
raise BrowserError(f'Failed to connect to browser port: {url}')
pyppeteer.errors.BrowserError: Failed to connect to browser port: http://127.0.0.1:60264/json/version
安装依赖即可：
yum install pango.x86_64 libXcomposite.x86_64 libXcursor.x86_64 libXdamage.x86_64 libXext.x86_64 libXi.x86_64 libXtst.x86_64 cups-libs.x86_64 libXScrnSaver.x86_64 libXrandr.x86_64 GConf2.x86_64 alsa-lib.x86_64 atk.x86_64 gtk3.x86_64 -y
yum install ipa-gothic-fonts xorg-x11-fonts-100dpi xorg-x11-fonts-75dpi xorg-x11-utils xorg-x11-fonts-cyrillic xorg-x11-fonts-Type1 xorg-x11-fonts-misc -y