Sage--use spkg coxeter3 in Sage notebook

Question

I want to use the well-known coxeter3 package (http://math.univ-lyon1.fr/~ducloux/coxeter/coxeter3/english/coxeter3_e.html) in sage-notebook. I've tried 'i' and 'f' but doesn't work, so far I couldn't find a 'good' answer online.

How to install the package so that I can use it in sage-notebook?

Answer 1

If you installed Sage from source or from a binary for Linux or macOS, you should be able to install the coxeter3 package by opening a terminal and running

sage -i coxeter3

(type sage -i coxeter3 and hit the RETURN or ENTER key).

Providing you have the necessary development tools available, this will install the package for your version of Sage, and next time you start either the Sage REPL (read-eval-print loop, or command-line interface in the terminal), or the SageNB notebook, or the Jupyter notebook with the SageMath kernel, you will be able to use the functionality of the coxeter3 package.

This also assumes that your shell is configured so that when you type sage in a terminal, this launches Sage.

If this is not the case, you need to open a terminal and run something like

sudo ln -sf /path/to/sagedir/sage /usr/local/bin

where /path/to/sagedir should be replaced by the path to the Sage directory (and you might need to type in your user password for your user account on that Mac). If you don't know what the path is to the Sage directory, you can obtain it by launching Sage and running, in Sage,

print SAGE_ROOT