[MacPorts] #40013: Create port for py-quantities

[MacPorts]

#40013: Create port for py-quantities
----------------------------+--------------------------------
  Reporter:  smithsp@…      |      Owner:  macports-tickets@…
      Type:  submission     |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  py-quantities  |
----------------------------+--------------------------------

Comment (by macsforever2000@…):

 Since the python portgroup already adds this port to the python category,
 we prefer to append the other categories.

 {{{
 categories-append   science
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/40013#comment:4>
MacPorts <http://www.macports.org/>
Ports system for OS X