open TELEMAC-MASCARET The mathematically superior suite of solvers

Dear all

As a first time user of Telemac and beginner of using Python, I have tried checking through many threads to find a similar problem as I have faced. I followed the tutorial given at

by JM Coastal, to the very letter but got hit with an error. Pls see the attached screenshot for details.

I would appreciate it a lot if anyone could give some suggestions to solve this issue.

Thanks a lot!!