30 Dec
                
                    2010
                
            
            
                30 Dec
                
                '10
                
            
            
            
        
    
                5:09 p.m.
            
        Hi Ben,
So it's being set in the environment somewhere in PHENIX prior to Coot being run? But not in a straight PHENIX python environment? It's probably not a big deal, but I don't like not understanding the problem fully; it makes me less confident of the solution. :-)
My suspicion is that Python sets the variable in lib/python2.7/sysconfig.py: os.putenv('MACOSX_DEPLOYMENT_TARGET', cfg_target) You could find out for sure by adding a print statement right before this line. Ralf