If Statement not working on Python 2.7

I recently tried to make a calculator in Python but the options that I am trying to make with the if statement is not working, if you could pleas tell me what is wrong I would appreciate it, the code is below as follow. Yes I know there is typos I just was needing some help on why this if statement is not working because I have used them before and it worked

#Calculator Testing in Pytho 2.7

f == raw_input("""What function would you like to use?
You can type Opt to see the options"""

if f == "Opt":
    print
    """You can choose from the following options when at the 
    function selection screen;
    Type /Add for Addition
    Type /Sub for Subtraction
    Type /Div for Division
    Type /Multi for Multiplication

    Type /menu to go back to the function selection screen
    or
    Type /quit any time to end the program"""

if f == "no":
    print "test"



funcopt = raw_input("What would you to do?")

if funcopt == "/quit":
    print "test"