Index: wflow-py/wflow/wflow_sphy.py
===================================================================
diff -u -r26a57512c7c248d755655bf37263b23acd885043 -r0b41e43f37d232133cd4d014e63c39941525df35
--- wflow-py/wflow/wflow_sphy.py	(.../wflow_sphy.py)	(revision 26a57512c7c248d755655bf37263b23acd885043)
+++ wflow-py/wflow/wflow_sphy.py	(.../wflow_sphy.py)	(revision 0b41e43f37d232133cd4d014e63c39941525df35)
@@ -256,8 +256,13 @@
     self.GroundFLAG = int(configget(self.config,'MODULES','GroundFLAG','0'))
     
     # import the required modules
-    import datetime, calendar, timecalc, ET, rootzone, subzone
+    import datetime, calendar
     import wflow.reporting as reporting
+    import wflow.timecalc as timecalc
+    import wflow.ET as ET
+    import wflow.rootzone as rootzone
+    import wflow.subzone as subzone
+
     #from wflow.wflow_lib import *
     from math import pi
     #-standard python modules