Phython programme

print"Temprature convertion programme"
print"*******************************"
print"choice 1: Celsius to  Fahrenheit"
print"choice 2: Fahrenheit to Celsius"
print"_______________________________"
choice = raw_input('Enter your choice [1-3] : ')
print"_______________________________"

### Convert string to int type ##
choice = int(choice)

### Take action as per selected menu-option ###
if choice == 1:
        c=raw_input("Enter temparature in Clesias scale:")
        c=int(c)
        F=1.8*c+32
        print("__________________________")
        print "Temparature in Fahrenheit is ", F,"F"
        print"___________________________"
       
elif choice == 2:
        f=raw_input("Enter temparature in Fahrenheit:")
        f=int(f)
        c=0.555*(f-32)
        print("_________________________")
        print "Temparature in Clesias scale is",c,"C"
        print"__________________________"

else:    ## default ##
        print ("Invalid number. Try again...")