If dot2tex is not installed, then the command view(crystals.Tableaux("A3",shape=[2,1])) produces broken LaTeX and hence fails. (The attachment is the file as printed by view(..., debug=True).) The issue seems to be that the digraph LaTeX code cannot handle the complicated vertex labels that often arise with crystals. A secondary issue is that, even in cases where view(crystals....) works without dot2tex, the version with dot2tex looks much better.

CC: @tscrim

Component: combinatorics

Issue created by migration from https://trac.sagemath.org/ticket/33947