[Tutor] What's the invalid syntax?

[Nathan Pinno]

What's the invalid syntax?

[code]
from datetime import *

def menu():
    print "(A)dd days to current date."
    print "(F)ind how many days have passed since a date."
    print "(E)xit."

def menu_choice():
    choice = raw_input("Enter the letter of your choice: ")
    return choice

def date1():
    y1 = int(raw_input("Enter the year: "))
    m1 = int(raw_input("Enter the month: "))
    d1 = int(raw_input("Enter the day: "))
    date1 = date(y1, m1, d1)
    return date1

def date2():
    y2 = int(raw_input("Enter the 2nd year: "))
    m2 = int(raw_input("Enter the 2nd month: "))
    d2 = int(raw_input("Enter the 2nd day: "))
    date2 = date(y2, m2, d2)
    return date2

print "Date Calculator"
print "By Nathan Pinno"
print
while 1:
    menu()
    menu_choice()
    if choice == A:
        date1()
        days = int(raw_input("Enter the number of days to add: "))
        date3 = date1 + days
        print date(date3).isoformat(), " is the date ", days, " from today."
    elif choice == F:
        date1()
        date2()
        days = date2 - date1
        print days, " days seperate " date2.isoformat(), " from ", date1.isoformat(), "."
    elif choice = E:
        break()
    else:
        print "That's not an option. Try again, please."
[/code]
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