[MacPorts] #31119: root +python26 fails in destroot because ROOT.py is not found

[MacPorts]

#31119: root +python26 fails in destroot because ROOT.py is not found
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 Reporter:  a2piratesoft@…          |       Owner:  mattiafrancescomoro@…                                  
     Type:  defect                  |      Status:  new                                                    
 Priority:  Normal                  |   Milestone:                                                         
Component:  ports                   |     Version:  2.0.2                                                  
 Keywords:                          |        Port:  root                                                   
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Comment(by jonesc@…):

 I've made some progress on understand what I think is going on here.

 The problem is with the ROOT configure script. When python support is
 enabled, it does various things including things along the lines of

 {{{
 pythonvers=`python -c 'import sys; sys.stdout.write(sys.version[:3])'`
 }}}

 The problem with that lines it assumes the python version being used is
 called 'python' and is found via the PATH variable.... Which isn't the
 case for MacPorts.

 This explains why when I was on SL python26 worked OK, but  I never
 managed to get python27 working, whereas on Lion its the other way around
 (*).

 I'm debating the wisdom of this with the ROOT devs. Its not clear if
 anything will change.

 So, for the moment at least the situation is the only python variants
 which will work are the ones that are the same version as the system
 python version, so 2.7 on Lion and 2.6 on SL.

 (*) I am currently running a check to make sure the 2.7 variant on Lion
 works OK... Once it does I'll submit the patch for inclusion.

-- 
Ticket URL: <https://trac.macports.org/ticket/31119#comment:2>
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