PyPI certificate issue preventing the installation of SuPy

[sunt05]

Thank you @biglimp and @sunt05 for your help, you guided me directly to the solution.
It was a certificate problem and my company didn't trust supy and click.

After trying to install the packages with pip in the OSGeo4W Shell, I got the problem code indicating it was a certificate issue.

Solution:

1. Start OSGeo4W Shell.
2. Run this line to update the list of trusted packages:

python -m pip install pip-system-certs --trusted-host pypi.org --trusted-host files.pythonhosted.org --trusted-host pypi.python.org

3. Start QGIS. Then QGIS could automatically update the missing packages (or you can install them yourself in the shell typing "pip install supy click").

Thanks again!

Originally posted by @nissepistol in #83