xpyb-dev.tcz
   libxcb-dev.tcz
      Xorg-7.6-dev.tcz
      libxcb.tcz
      libpthread-stubs.tcz
   python-dev.tcz
      sqlite3-dev.tcz
         sqlite3.tcz
      tk-dev.tcz
         tk.tcz
            tcl.tcz
            Xorg-7.6-lib.tcz
         tcl-dev.tcz
            tcl.tcz
      bzip2-dev.tcz
         bzip2-lib.tcz
         bzip2.tcz
      python.tcz
         sqlite3.tcz
         bzip2-lib.tcz