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Field Calculator Script Help

Question asked by jamesfreddyc on Apr 3, 2013
Latest reply on Apr 3, 2013 by jamesfreddyc
The below script works as expected in PythonWin or any other IDE and I am attempting to adapt it to be used in the Field Calculator (ArcMap 10.1) but I am not getting the expected results.

Expected result: populate the field with sequential values that are text/string representation(s) of dates (in the format YYYYMM). 

Current result: no errors, but it just populates with a single date/result and not iterating to the next value in the sequence.

Help is appreciated!

 import datetime from datetime import timedelta date=0 def jump_by_month(start_date, end_date, month_step=1):     current_date = start_date     while current_date < end_date:      #yield current_date      carry, new_month = divmod(current_date.month - 1 + month_step, 12)      new_month += 1      current_date = current_date.replace(year=current_date.year + carry, month=new_month)      yr = current_date.year      strYR = str(yr)      mo = current_date.month      if mo < 10:       strMO = "0" + str(mo)      else:       strMO = str(mo)            retVal =  strYR + strMO      return retVal