[MacPorts] #71963: virt-viewer fails to build without 'python3 select'

[MacPorts]

#71963: virt-viewer fails to build without 'python3 select'
-------------------------------------------------+-------------------------
 Reporter:  jasonliu--                           |      Owner:  (none)
     Type:  defect                               |     Status:  new
 Priority:  Normal                               |  Milestone:
Component:  ports                                |    Version:  2.10.5
 Keywords:  mojave highsierra sierra elcapitan   |       Port:  virt-viewer
  yosemite                                       |
-------------------------------------------------+-------------------------
 Builds for 10.14 Mojave and older are failing at the configure stage with
 the following error message:

 {{{
 meson.build:214:12: ERROR: Program or command 'python3' not found or not
 executable
 }}}

 The error can be worked around by manually running {{{port select python3
 python313}}} (or any other version of python 3.x).

-- 
Ticket URL: <https://trac.macports.org/ticket/71963>
MacPorts <https://www.macports.org/>
Ports system for macOS