Hi Jian, I just struggled with the same problem - seems the python 2.4.2 does not recognise readline 5
I finally "solved" the problem by installing readline 4.2, and explicitly pointing out to configure where the readline library is ./configure --with-libs=/usr/local/lib/libreadline.a That finally made it work ... Cheers Jesper -- http://mail.python.org/mailman/listinfo/python-list