welcome at the os_sys doc.

here on this page you have the info that you will need to start using os_sys.

first you need to install os_sys you how? you typ this command in cmd: python -m pip install os_sys
if the installation gives a error you need to upgrade pip and setuptools maybe first. typ in cmd:
python -m pip install --upgrade pip, setuptools and after that you typ: python -m pip install os_sys.

you now have os_sys i say lets get started.