Latest Contributions by MoyaCalvert

Hi all, I am using ArcGIS 10.3 to update a field with a numeric value that represents the elapsed time since the data was captured.  I can do this in a python script that I have attached to a model but I also want to be able to sometimes do it quickly from within ArcGIS desktop and I am stumped. I have written a 3 step process: 1. Create an integer field then calculate the number of days since today (field name = ET): In Field Calculator, ET = (datetime.datetime.now() - arcpy.time.ParseDateTimeString(!ActivityDate!)).days 2.  Create a conditional Statement for "Elapsed Time" field as follows: Expression: Reclass(!ET!) def Reclass(ET):     if ( ET < 28):         return 1     elif ( ET>= 28 and ET < 91):         return 2     elif ( ET >= 91 and ET < 182):         return 3     elif ( ET >= 182 and ET < 365):         return 4     elif (ET >= 365):         return 5 3. Delete the ET field I really just want to declare a variable in my conditional statement for ET which would save having to create then delete the ET field, but everything I have tried does not work, for example: Expression: Reclass(ET) ET = (datetime.datetime.now() - arcpy.time.ParseDateTimeString(!ActivityDate!)).days def Reclass(ET):     if ( ET < 28):         return 1 etc etc I cannot find any examples of conditional statements that use a variable instead of a field value in the Field Calculator, so any help would be appreciated. ... View more