[MacPorts] #31259: root: python variants use "python" binary

[MacPorts]

#31259: root: python variants use "python" binary
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 Reporter:  ryandesign@…             |       Owner:  jonesc@…                
     Type:  defect                   |      Status:  new                     
 Priority:  Normal                   |   Milestone:                          
Component:  ports                    |     Version:  2.0.3                   
 Keywords:                           |        Port:  root                    
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 The python26 and python27 variants in the root port rely on there being a
 "python" binary of that version. This is only the case on specific
 versions of Mac OS X (python26: Snow Leopard; python27: Lion), or if the
 user has used "`sudo port select python`" to select that version. But it
 is improper for ports to rely on the user having done so. The port must
 not rely on a "python" binary; it must use the specific versioned python
 binary provided by the port whose python variant is selected.

 This is discussed also in #31247.

 If the developers of root will not provide an option for this, we can
 patch it.

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Ticket URL: <https://trac.macports.org/ticket/31259>
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