OSError: [Errno 13] Permission denied:

I am trying to install a library package to python but I get the following error:

OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/PackageName'

I've looked online and tried the following, but it doesn't seem to work:

chown -R $USER /Library/Python/2.7/site-packages/pync

and also:

chown -R $vdixon /Library/Python/2.7