install cups on python3

[sparkz_alot]

I presume you are trying to install the Python module and not the actual cups program (which is installed by default on Linux systems)
Try

For Python 3

pip3 install pycups

For Python 2

pip install pycups

Also, saying "...it doesn't work" is not helpful at all. You need to post the actual errors (between the error code tags) in it's entirety.