[tests] fix Python3 print form in test_dynamical_systems.py
@@ -34,7 +34,7 @@ def test_ds_interface():
class_name = args
attr = ds_classes[args]
ds = class_name(*attr)
- print class_name, attr[0]
+ print(class_name, attr[0])
ds.initializeNonSmoothInput(1)
ds.resetAllNonSmoothParts()
ds.resetNonSmoothPart(1)
