ignore graphviz mypy errors

bollwyvl · bollwyvl · commit 61e633d86750 · 2020-02-22T15:03:01.000-05:00
diff --git a/setup.cfg b/setup.cfg
@@ -128,3 +128,6 @@ ignore_missing_imports = True
 
 [mypy-nbsphinx]
 ignore_missing_imports = True
+
+[mypy-graphviz]
+ignore_missing_imports = True
