How to check port distributable status?

[Eric A. Borisch]

I apologize if I've missed this in a guide or discussions here...

Can anyone tell me why this is marked as not distributable? Is there a
port command to run a (verbose) distributable check?

http://build.macports.org/builders/buildports-snowleopard-x86_64/builds/2216/steps/gather%20archives/logs/stdio

Portfile: https://trac.macports.org/browser/trunk/dports/python/py-sip/Portfile

Thanks,
 Eric