[sage-support] Re: Trouble understanding `sage -optional` answer

2021-05-04 Thread Matthias Koeppe
On Tuesday, May 4, 2021 at 7:00:55 AM UTC-7 Emmanuel Charpentier wrote: > Trying to list the installed optional packages, I innocently typed : > > charpent@zen-book-flip:~$ sage -optional | grep -v not_instal > > The answer left me stimyed : > >

[sage-support] Trouble understanding `sage -optional` answer

2021-05-04 Thread Emmanuel Charpentier
Dear list Trying to list the installed optional packages, I innocently typed : charpent@zen-book-flip:~$ sage -optional | grep -v not_instal The answer left me stimyed : /usr/local/sage-9/local/lib/python3.9/site-packages/sage/misc/package.py:114: UserWarning: failed to fetch the version of