Ubuntu lucid lynx does not have Python 2.4 and 2.5 runtimes available in the repositories, so if you are a developer and you are in need of those, then you have two options: One is try to find binaries somewhere else or just compile them from source. In this article, I’m going to point out the steps for compilation.
Go to python.org and download the sources for the version you want. In my case I download Python2.4 Untar the bz2 or gzip file. Go to Python-2.4.4 (my Python version) and cd into Modules. Edit the Setup file and uncomment those modules you need. Amongst them I uncommented the zlib module. You’ll need to install from repos the zlib1g-dev package and the Tcl/Tk one as well. I take for granted you’ve got g++ compiler as well as it is necessary. ./configure, make and sudo make install. Take into account that the python2.4 runtime will be installed in /usr/local/bin/python and /usr/local/bin/python2.4 In my case I deleted the “/usr/local/bin/python” leaving the “/usr/local/bin/python2.4” (both are the same) to avoid clashing with the python (2.6) in /usr/bin as apparently the shell looks first in /usr/local/bin.