Hello i download the repo and follow the procedure.
s://files.pythonhosted.org/packages/17/61/32c3ab8951142e061587d957226b5683d1387fb22d95b4f69186d92616d1/typing_extensions-4.0.0-py3-none-any.whl
Collecting zipp>=0.5 (from importlib-metadata; python_version < "3.8"->click>=7.1.2->Flask->-r requirements.txt (line 4))
Using cached https://files.pythonhosted.org/packages/bd/df/d4a4974a3e3957fd1c1fa3082366d7fff6e428ddb55f074bf64876f8e8ad/zipp-3.6.0-py3-none-any.whl
Installing collected packages: gevent, grequests, lxml, soupsieve, beautifulsoup4, bs4, typing-extensions, zipp, importlib-metadata, click, dataclasses, Werkzeug, MarkupSafe, Jinja2, itsdangerous, Flask
Running setup.py install for gevent ... error
Complete output from command /usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-c9ul2c7f/gevent/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-tv7754ge-record/install-record.txt --single-version-externally-managed --compile:
/usr/lib64/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution option: 'cffi_modules'