Temp Converter

import sys
print sys.argv

scale = raw_input("Please enter the first letter of the scale of temperature [F, C, K]: ")
temp = raw_input("Please enter temperature: ")
temp = int(temp)


""" This function should take in scale & temp and run if statement
 logic on them to report the conversion of the temp from one scale to another"""

def convert(scale, temp):
    if scale == "F":
        f2c = fahrenheit2celsius(temp)
        print "The temperature in Celsius is: " + str(f2c)
        f2k = fahrenheit2kelvin(temp)
        print "The temperature in Kelvin is: " + str(f2k)
    elif scale == "C":
        c2f = celsius2fahrenheit(temp)
        print "The temperature in Fahrenheit is: " + str(c2f)
        c2k = celsius2kelvin(temp)
        print "The temperature in Kelvin is: " + str(c2k)
    elif scale == "K":
        k2f = kelvin2fahrenheit(temp)
        print "The temperature in Fahrenheit is: " + str(k2f)
        k2c = kelvin2celsius(temp)
        print "The temperature in Celsius is: " + str(k2c)
    else:
        exit()

# converts fahrenheit to celsius
def fahrenheit2celsius(fahrenheit):
    celsius = (5.0 / 9) * (fahrenheit - 32)
    return celsius
# converts fahrenheit to kelvin
def fahrenheit2kelvin(fahrenheit):
    kelvin = (fahrenheit - 32) * (5 / 9.0) + 273.15
    return kelvin
# converts celsius to farenheit
def celsius2fahrenheit(celsius):
    fahrenheit = (celsius  * (9 / 5.0) + 32)
    return fahrenheit
# converts celsius to kelvin
def celsius2kelvin(celsius):
    kelvin = (celsius + 273.15)
    return kelvin
# converts kelvin to fahrenheit
def kelvin2fahrenheit(kelvin):
    fahrenheit = ((kelvin - 273.15) * 1.8) + 32
    return fahrenheit
# converts kelvin to celsius
def kelvin2celsius(kelvin):
    celsius = (kelvin - 273.15)
    return celsius

convert(scale,temp);