print "all amounts should be in dollars!" while True: P=float(raw_input("enter Principal:")) i=float(raw_input("enter Percentage of interest rate:")) t=float(raw_input("enter Time(in years):")) I=P*t*(i/100) print "Interest is", I,"dollars"
print "all amounts should be in dollars!" while True: P=float(raw_input("enter Principal:")) i=float(raw_input("enter Percentage of interest rate:")) t=float(raw_input("enter Time(in years):")) I=P*t*(i/100) print "Interest is", I,"dollars"