Merge pull request #3404 from med-ayssar/ticket-3390

Check if dot binary exists

Author: heplesser

Diff for: testsuite/pytests/test_visualization.py

@@ -39,9 +39,11 @@
     PLOTTING_POSSIBLE = False
 
 try:
+    import shutil
+
     import pydot  # noqa: F401
 
-    HAVE_PYDOT = True
+    HAVE_PYDOT = shutil.which("dot") is not None
 except ImportError:
     HAVE_PYDOT = False