https://ports.macports.org/port/R-packagefinder/
Install R-packagefinder on macOS with MacPorts
installrmacos
https://forum.tinycorelinux.net/index.php/topic,26617.0/prev_next,prev.html
pip ImportError: cannot import name 'PackageFinder'
pip ImportError: cannot import name 'PackageFinder'
pipimporterrorcannotnamepackagefinder
https://mail.python.org/archives/list/distutils-sig@python.org/message/UW3BPGEH2RB2MBHPBJMY4PC5DNPVUEDA/
Mailman 3 Re: [Distutils] distlib locator compares reasonably well with pip's PackageFinder -...
mailmandistutilsdistliblocatorcompares