Python temp conversion

tempCon.py

####################################################################
#Python program to convert temperature from either Fahrenheit to   #
#Celsius or vise-versa. This is a very simple function example.    #
#                                                                  #
####################################################################
 
 
def convert(temp, unit):
    unit = unit.lower()
    if unit == "c":
        temp = 9.0 / 5.0 * temp + 32
        return "%s degrees Fahrenheit"% temp
    if unit == "f":
        temp = (temp - 32)  / 9.0 * 5.0
        return "%s degrees Celsius"% temp
 
intemp = int(raw_input("What is the temperature?\n"))
inunit = str(raw_input("Please enter the unit of measure (f or c):\n"))
 
print convert(intemp, inunit)

I've been trying to figure this out for months

many thanks