Index: wflow-py/UnitTests/TestBMI_combined_mp.py
===================================================================
diff -u -r3e39e84af48f1bcb5ec0d243748147be223674f2 -rf9f3c6899180840802fcf49f03ae83612edb4d66
--- wflow-py/UnitTests/TestBMI_combined_mp.py	(.../TestBMI_combined_mp.py)	(revision 3e39e84af48f1bcb5ec0d243748147be223674f2)
+++ wflow-py/UnitTests/TestBMI_combined_mp.py	(.../TestBMI_combined_mp.py)	(revision f9f3c6899180840802fcf49f03ae83612edb4d66)
@@ -32,7 +32,7 @@
             bmiobj.get_end_time() - bmiobj.get_start_time()
         ) / bmiobj.get_time_step() + 1
         print(steps)
-        for a in range(0, steps):
+        for a in range(0, int(steps)):
             bmiobj.update()
 
         atn = bmiobj.get_attribute_names()