I need help with this code in python 3 ---------------------------------- #!/usr/bin/env python import math c=50 h=30 value = [] items=[x for x in raw_input().split(',')] for d in items: value.append(str(int(round(math.sqrt(2*c*float(d)/h))))) print ','.join(value) #getting an error and im not entirely sure what is going wrong. it is telling me "raw_input" is an unresolved #refrence. also the print statement say it has no effect.