This is Python 1.3, built for DEC's Ultrix 4.5. It should also work on other versions of Ultrix 4 - I have tested that it also works on Ultrix 4.2A. This version of Python contains the following builtin modules array audioop binascii crypt dbm fcntl grp imageop imp marshal math md5 posix pwd regex rgbimg rotor select signal socket strop struct sys time timing tkinter It also includes readline support for interactive use. The tar file contains bin/python lib/python/ [lots of stuff] include/Py/ [include files] The optimal place to install this is under /usr/local. It was built with DEC's cc on a Decstation 5000/240 running Ultrix 4.5 -- Anthony Baxter