[MacPorts] #19717: gtk-builder-convert fails when building gnome-keyring @2.26.1 if default python version >= 3.0

[MacPorts]

#19717: gtk-builder-convert fails when building gnome-keyring @2.26.1 if default
python version >= 3.0
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 Reporter:  christophe.haro@…        |       Owner:  nox@…           
     Type:  defect                   |      Status:  assigned        
 Priority:  Normal                   |   Milestone:                  
Component:  ports                    |     Version:  1.7.1           
 Keywords:  gnome-keyring            |        Port:  gtk2            
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Comment(by nox@…):

 Or we could fix the incompatibilies. I don't want to depend on python25
 for just a single script.

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Ticket URL: <http://trac.macports.org/ticket/19717#comment:13>
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