Ubuntu Aptget Python stuff

Posted under » Ubuntu » Python on 08 December 2009

To list the version of Python you are having

python -V

To install an old version

apt-get install python2.4

python2.4 and python2.5 will happily coexist. Python2.5 puts its libraries in /usr/lib/python2.5 while python2.4 puts them in /usr/lib/python2.4 and so forth. /usr/bin/python will typically be a symlink to the latest version of python (/usr/bin/python2.5), and you can specifically use version 2.4 by running /usr/bin/python2.4.

Installing modules

The manual mode. Sometimes, the command look like this.

python setup.py install

python egg
In some cases, you can instal stuff by the python egg. Which is basically a shell script ie you have to chmod it to 755 prior to execution.

In Ubuntu if you want the latest version you may install it by Apt-get

apt-get install python-cherrypy3
apt-get install python-mako (will install sqlalchemy as well)
apt-get install python-biopython
apt-get install python-setuptools (for easy_install)

Latest Versions

Python 2.6.2
CherryPy-3.0.2
python-mako (0.2.2-1)
python-sqlalchemy (0.4.8-1)

If you install stuff, location is.

/usr/share/python-support
- python-biopython
- python-cherrypy3
- python-openssl
- python-sqlalchemy
Mako /usr/lib/python2.6/dist-packages/mako

To uninstall

apt-get remove --purge python-mako

To renstall

apt-get --reinstall install python-mako

Sometimes you can't uninstall a module while you are on a different version of Python at the time of uninstall while corrupting the module in the process. When this happens, you need to

revert to the Python version where the module is installed and then reinstall the module.
uninstall it