import pickle
import os
def menu():
    print("#################################")
    print("#1. add mail to the list        #")
    print("#2. read the list               #")
    print("#3. send mail to these adresses #")
    print("#4. exit                        #")
    print("#################################")
    
def addmail(input):
    
    if not os.path.isfile("mailsave.p"):
        listofmails = []
        
    else:
        listofmails = pickle.load(open("mailsave.p", "rb"))
        
    listofmails.append(input)
    
    pickle.dump(listofmails, open("mailsave.p", "wb"))
    menu()
    
def read():
    if not os.path.isfile("mailsave.p"):
        listofmails = []
    else:
        listofmails = pickle.load(open("mailsave.p", "rb"))
    print(listofmails)
    menu()


menu()
while True:
    try:
        menuchoice = int(input())
        if menuchoice == 1:
            addmail(str(input("Please input the email adress you want to add to the list: ")))
        elif menuchoice == 2:
            read()
        elif menuchoice == 3:
            import mailtest
        elif menuchoice == 4:
            print("© Jarek 2018")
            raise SystemExit
        else:
            print("you have to choose one of the options")
    except ValueError:
        print("please enter a valid number")