Index: wflow-py/wflow/wf_DynamicFramework.py
===================================================================
diff -u -rb4fd8a698283e62ac1c8624375925fd23a92b924 -r955e9f7a3dab65cc1cf313047c218ca20da32ee7
--- wflow-py/wflow/wf_DynamicFramework.py	(.../wf_DynamicFramework.py)	(revision b4fd8a698283e62ac1c8624375925fd23a92b924)
+++ wflow-py/wflow/wf_DynamicFramework.py	(.../wf_DynamicFramework.py)	(revision 955e9f7a3dab65cc1cf313047c218ca20da32ee7)
@@ -57,16 +57,20 @@
 
 
 class netcdfinput():
-    def __init__(self,netcdffile,logging,vars=[],readinmem=True):
+    def __init__(self,netcdffile,logging,vars=[]):
         """
         First try to setup a class read netcdf files
         (converted with pcr2netcdf.py)
+
+        netcdffile: file to read the forcing data from
+        logging: python logging object
+        vars: list of variables to get from file
         """
         self.dataset = netCDF4.Dataset(netcdffile,mode='r')
         logging.info("Reading input from netCDF file: " + netcdffile + ": " + str(self.dataset).replace('\n',' '))
         self.alldat ={}
         a = pcr2numpy(cover(0.0),0.0).flatten()
-        # Determine steps in mem based on memory usage
+        # Determine steps to load in mem based on estimated memory usage
         floatspermb = 1048576/4
         maxmb = 4000
         self.maxsteps = maxmb * len(a)/floatspermb + 1
@@ -75,10 +79,15 @@
 
         for var in vars:
             self.alldat[var] = self.dataset.variables[var][self.fstep:self.maxsteps]
-        #self.alldat['PET'] = self.dataset.variables[petvar][self.fstep:self.maxsteps]
-        #self.alldat['TEMP'] = self.dataset.variables[tempvar][self.fstep:self.maxsteps]
 
     def gettimestep(self,timestep,logging,var='P'):
+        """
+        Gets a map for a single timestep. reads data in blocks assuming sequential access
+
+        timestep: framework timestep (1-based)
+        logging: python logging object
+        var: variable to get from the file
+        """
         ncindex = timestep -1
         if self.alldat.has_key(var):
             if ncindex == self.lstep: # Read new block of data in mem