I am trying to install the package TOPCOM in sage. I am running ubuntu 14.04.
Issuing
$ sudo sage -i topcom
from my terminal returns
sys:1: RuntimeWarning: not adding directory '' to sys.path since it's writable by an untrusted group.
Untrusted users could put files in this directory which might then be imported by your Python code. As a general precaution from similar exploits, you should not execute Python code from this directory
/usr/lib/sagemath/build/make/pipestatus: line 39: sage-spkg: command not found
Any ideas what is going wrong?