Since "Rattail" is really an umbrella term for a rather diverse collection of software packages, the installation process may vary greatly depending on which utilities you actually need. This page therefore serves as more of a starting point, with pointers to specific instructions elsewhere.
Regardless of what you intend to do with Rattail, the following requirements should be installed first:
The only "essential" package is rattail. Install it with:
$ easy_install rattail
Any additional packages you want will be installed in the same manner. For example to install rattail.sw.locsms you would do:
$ easy_install rattail.sw.locsms
Here is the full list of available packages, in alphabetical order: