Something

xserve3:~ ryalaman$ hdiutil attach ActivePython-2.4.3.11-macosx-powerpc.dmg
Checksumming DDM...
                                 DDM: verified   CRC32 $38B9AC65
Checksumming Apple (Apple_partition_map : 0)...
     Apple (Apple_partition_map : 0): verified   CRC32 $E6DBF024
Checksumming disk image (Apple_HFS : 1)...
......................................................................................................................................................................................
          disk image (Apple_HFS : 1): verified   CRC32 $C3AF0725
Checksumming  (Apple_Free : 2)...
                    (Apple_Free : 2): verified   CRC32 $00000000
verified   CRC32 $F8B55DF8
/dev/disk2              Apple_partition_scheme
/dev/disk2s1            Apple_partition_map
/dev/disk2s2            Apple_HFS                       /Volumes/ActivePython-2.4
xserve3:~ ryalaman$ installer -pkg /Volumes/ActivePython-2.4/
.DS_Store             .Trashes              .background           ActivePython-2.4.pkg  License.rtf           ReadMe.html
xserve3:~ ryalaman$ installer -pkg /Volumes/ActivePython-2.4/ -target ~
installer: Error the package path specified was invalid: '/Volumes/ActivePython-2.4/'.
xserve3:~ ryalaman$ installer -pkg /Volumes/ActivePython-2.4/ActivePython-2.4.pkg -target ~
installer: Administrator level priviledges are required to install.