Revert "Declare graphviz as an optional dependency"

nathanjmcdougall · nathanjmcdougall · commit 50017c328ba0 · 2025-12-16T20:07:23.000+13:00
This reverts commit 467fbe6.
diff --git a/pyproject.toml b/pyproject.toml
@@ -38,7 +38,6 @@ optional = [
     "jinja2",  # for to_latex options
     "pypestutils",
     "scikit-learn",
-    "graphviz",
 ]
 test = [
     "coveralls",
