Index: wflow-py/wflow/wf_netcdfio.py
===================================================================
diff -u -r4143969ebd6b276284ea6e4198ee693bd6ab506a -r2be60229fcd380064e761636569c4611a665d8d8
--- wflow-py/wflow/wf_netcdfio.py	(.../wf_netcdfio.py)	(revision 4143969ebd6b276284ea6e4198ee693bd6ab506a)
+++ wflow-py/wflow/wf_netcdfio.py	(.../wf_netcdfio.py)	(revision 2be60229fcd380064e761636569c4611a665d8d8)
@@ -408,9 +408,7 @@
         """
         if hasattr(self, "nc_trg"):
             if self.bufferdirty:
-                self.logger.warn(
-                    "Finishing before expected run-length exceeded. Buffer not flushed"
-                )
+                self.logger.warning("Finishing before expected run-length exceeded. Buffer not flushed")
             self.nc_trg.sync()
             self.nc_trg.close()
 
@@ -719,10 +717,9 @@
                 self.alldat[var] = self.dataset.variables[var]
             except:
                 self.alldat.pop(var, None)
-                logging.warn(
-                    "Variable " + var + " not found in netcdf file: " + netcdffile
-                )
+                logging.warning("Variable " + var + " not found in netcdf file: " + netcdffile)
 
+
     def gettimestep(self, timestep, logging, tsdatetime=None, var="P", shifttime=False):
         """
         Gets a map for a single timestep. reads data in blocks assuming sequential access
@@ -750,34 +747,18 @@
             ncindex = self.datetimelist.size - 1
 
         if tsdatetime != None:
-            if tsdatetime.replace(tzinfo=None) != self.datetimelist[ncindex].replace(
-                tzinfo=None
-            ):
-                logging.warn(
-                    "Date/time does not match. Wanted "
-                    + str(tsdatetime)
-                    + " got "
-                    + str(self.datetimelist[ncindex])
-                )
+            if tsdatetime.replace(tzinfo=None) != self.datetimelist[ncindex].replace(tzinfo=None):
+                logging.warning("Date/time does not match. Wanted " + str(tsdatetime) + " got " + str(self.datetimelist[ncindex]))
                 import bisect
 
                 pos = bisect.bisect_left(
                     self.datetimelist, tsdatetime.replace(tzinfo=None)
                 )
                 if pos >= self.datetimelist.size:
-                    pos = self.datetimelist.size - 1
-                    logging.warn(
-                        "No matching date/time found using last date/time again..."
-                    )
+                    pos = self.datetimelist.size -1
+                    logging.warning("No matching date/time found using last date/time again...")
                 self.offset = pos - ncindex
-                logging.warn(
-                    "Adjusting to the date/time at index and setting offset: "
-                    + str(pos)
-                    + ":"
-                    + str(self.offset)
-                    + ":"
-                    + str(self.datetimelist[pos])
-                )
+                logging.warning("Adjusting to the date/time at index and setting offset: " + str(pos) + ":" + str(self.offset) + ":"  + str(self.datetimelist[pos]))
                 ncindex = pos
 
 
@@ -933,9 +914,7 @@
                 ]
             except:
                 self.alldat.pop(var, None)
-                logging.warn(
-                    "Variable " + var + " not found in netcdf file: " + netcdffile
-                )
+                logging.warning("Variable " + var + " not found in netcdf file: " + netcdffile)
 
     def gettimestep(self, timestep, logging, var="P", tsdatetime=None):
         """
@@ -949,25 +928,11 @@
 
         if var in self.dataset.variables:
             if tsdatetime != None:
-                if tsdatetime.replace(tzinfo=None) != self.datetimelist[
-                    ncindex
-                ].replace(tzinfo=None):
-                    logging.warn(
-                        "Date/time of state ("
-                        + var
-                        + " in "
-                        + self.fname
-                        + ")does not match. Wanted "
-                        + str(tsdatetime)
-                        + " got "
-                        + str(self.datetimelist[ncindex])
-                    )
+                if tsdatetime.replace(tzinfo=None) != self.datetimelist[ncindex].replace(tzinfo=None):
+                    logging.warning("Date/time of state (" + var + " in " + self.fname + ")does not match. Wanted " + str(tsdatetime) + " got " + str(self.datetimelist[ncindex]))
 
-            np_step = self.dataset.variables[var][
-                ncindex,
-                self.latidx.min() : self.latidx.max() + 1,
-                self.lonidx.min() : self.lonidx.max() + 1,
-            ]
+            np_step = self.dataset.variables[var][ncindex, self.latidx.min():self.latidx.max() + 1,
+                          self.lonidx.min():self.lonidx.max() + 1]
 
             miss = float(self.dataset.variables[var]._FillValue)
             return numpy2pcr(Scalar, np_step, miss), True