You have a few options. If you use Windows, then scroll down and follow the instructions under the heading How to install the sage-combinat patches. Download a binary distribution for your system from http://sage.math.washington.edu/home/wstein/binaries/4.1.combinat/ and follow the installation instructions. People (such as FrancoSaliola) will have the above downloads on USB keys; ask them to borrow their USB keys. Then follow the above installation instructions. Don't forget to return the USB key! Download the source code from http://sagemath.org/download-source.html and follow the installation instructions on that page. Congratulations, you are now happy. Optional Step: If you want to participate in the development of sage-combinat, run the following command inside the sage directory: (If this step fails, please send an email to the sage-combinat-devel mailing list with the error message.) */
Step 1. To use the features developed by Sage-combinat, you first need to install Sage. You have two options. Download a binary distribution for your system from http://www.sagemath.org/download and follow the installation instructions Download the source code from http://sagemath.org/download-source.html and follow the installation instructions on that page. Step 2. If you really need the latest features: install the Sage-Combinat patches by running the following command inside the sage directory: This works best with the latest version of Sage (4.1 as of 06/10/2009). If this step fails, please send an email to the sage-combinat-devel mailing list with the error message.
See the Patch server Step by step tutorial (in particular, how to download Sage-Combinat) How to install sage-combinat at the *-Combinat conference
./sage -combinat install
How to install the sage-combinat patches
Short installation instructions
./sage -combinat install
Long instructions