canonical_label with bliss or nauty

edit

Please try with sage 9.7. Your version is outdated.

I've managed to install sage 9.7 with mamba/conda, and then conda install bliss returns no errors. Yet still is_package_installed('bliss') returns False, and naturally canonical_label with algorithm = 'bliss' doesn't work. The error is still

ModuleNotFoundError: No module named 'sage.graphs.bliss'

Max, the question was https://ask.sagemath.org/question/9029/using-nauty-optional-spkg-for-canonical-labeling/ (using nauty optional spkg for canonical labeling)

What does sage -optional |grep bliss report ? If you get

`bliss...................................0.73+debian-1+sage-2016-08-02.p0 (not_installed`)

try :

sage -i bliss

from command line. Not all external Sage optional packages can use a systemwide version of this package. Furthermore, even if bliss is installed systemwide, you may have to enable its detection and use by Sage with ./configure --enable-bliss then make build in the $SAGE_ROOT directory.*

BTW : I do NOT know if this can be done from a conda-installed Sage : I still compile from command line...

I do conda activate sage after which the command prompt has (sage) in it, and then start sage. It seems like sage doesn't recognize sage -optional |grep bliss at all. I get

/home/user1/.conda/envs/sage/bin/sage: line 1129: /home/user1/.conda/envs/sage/build/bin/sage-site: No such file or directory

And sage -i bliss results in exactly the same thing.

I can't seem to find any examples of bliss usage in sage other than the documentation...