Show warning only if hypervolume is called

lpoudel55 · May 30, 2018 · 42162f4 · 42162f4
1 parent bee1900
commit 42162f4
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/deap/tools/_hypervolume/pyhv.py b/deap/tools/_hypervolume/pyhv.py
@@ -28,14 +28,12 @@
 
 import numpy
 
-warnings.simplefilter("once", ImportWarning)
-warnings.warn("Falling back to the python version of hypervolume "
-    "module. Expect this to be very slow.", ImportWarning)
-
 def hypervolume(pointset, ref):
     """Compute the absolute hypervolume of a *pointset* according to the
     reference point *ref*.
     """
+    warnings.warn("Falling back to the python version of hypervolume "
+        "module. Expect this to be very slow.", RuntimeWarning)
     hv = _HyperVolume(ref)
     return hv.compute(pointset)