def register():

    print ("OCRTunes Register Page")
    username_check = False

    while username_check == False:
        username = input ("Please enter a Username ")
        database = open("Database.csv", "r")
        users = csv.reader(database)
        for row in users:
            if username == row[0]:
                username_check = False
                print ("Username not available, try again.")

            else:
                username_check = True

    if username_check == True:

        password_check = False

        while password_check == False:
            password = input ("Please enter a Password ")
            temp = password.lower()
            if temp == password:
                password_check = False
                print ("Password must contain at least one Capital letter")

            else:
                password_check = True
                print ("Password accepted.")

            forename = input ("Please enter your Forename ")
            surname = input ("Please enter your Surname ")
            dob = input ("Please enter your data of birth xx/xx/xxxx ")
            artist = input ("Please enter your favorite Artist ")
            genre = input ("Please enter your favorite Genre ")

            database = open('database.csv', 'a')

            linetowrite = ['username', 'password', 'forename', 'surname', 'dob', 'artist', 'genre']

            database.write(linetowrite)
            database.close()
            print ("Thank You for Registering, You will now be taken to the login page.")
            login()