How to install Python newt or snack in Mac OS X for byobu

Try,

sudo port install libnewt

After that, you may need to add /opt/local/lib/python2.6/site-packages to PYTHONPATH as follows,

export PYTHONPATH=/opt/local/lib/python2.6/site-packages/

or

setenv PYTHONPATH /opt/local/lib/python2.6/site-packages/