Index: wflow-py/wflow/wflow_bmi.py
===================================================================
diff -u -r8944c14a29922452d94bd04d5eceafbc0d94652e -rf2249a00f0fe88700dfa3c230497b1698ab84c81
--- wflow-py/wflow/wflow_bmi.py	(.../wflow_bmi.py)	(revision 8944c14a29922452d94bd04d5eceafbc0d94652e)
+++ wflow-py/wflow/wflow_bmi.py	(.../wflow_bmi.py)	(revision f2249a00f0fe88700dfa3c230497b1698ab84c81)
@@ -412,7 +412,7 @@
         """
         npmap = self.dynModel.wf_supplyMapAsNumpy(long_var_name)
 
-        return npmap.dtype
+        return str(npmap.dtype)
 
 
     def get_var_rank(self, long_var_name):