#parameters list => dataI="",dataF=""

if dataI == "" and dataF == "":
   data_zope = context.ZopeTime().strftime('%Y/%m/%d') #data do server
   data_inicial = DateTime(data_zope) - 15             #data do server - 15
   print "data_zope = "+data_zope
   print "data_inicial = "+data_inicial
   return printed