pygobject-2.7.tcz
   glib2.tcz
      libffi.tcz
   gobject-introspection.tcz
      glib2.tcz
         libffi.tcz
      libffi.tcz
      cairo.tcz
         pixman.tcz
         fontconfig.tcz
            expat2.tcz
      Xorg-7.6-lib.tcz
      python.tcz
         sqlite3.tcz
         bzip2-lib.tcz
   pycairo-2.7.tcz
      cairo.tcz
         pixman.tcz
         fontconfig.tcz
            expat2.tcz
      python.tcz
         sqlite3.tcz
         bzip2-lib.tcz
   libffi.tcz