Myanmar_Calendar.py

#Helper Functions
def clear_screen():
    print("")
    print("")
    print("")
    print("")


# convert english calender year to Myanmar calender year
def convert_to_mm_year(year_int, is_born_before_new_year):
    if is_born_before_new_year:
        year_int -= 639
    else:
        year_int -= 638
    return year_int

# name of the planet
def get_zodiac_name(zodiac_num):
    if zodiac_num == 7 or zodiac_num == 0:
        name = "Sunday"  # Sun
    elif zodiac_num == 1:
        name = "Monday"  # Mercury
    elif zodiac_num == 2:
        name = "Tuesday"  # Saturn
    elif zodiac_num == 3:
        name = "Wednesday"  # Mars
    elif zodiac_num == 4:
        name = "Thursday"  # Venus
    elif zodiac_num == 5:
        name = "Friday"  # Moon
    elif zodiac_num == 6:
        name = "Saturday"  # Jupiter
    else:
        name = "Zodiac Name Error"
    return name

def ask_eng_year():
    clear_screen()
    user_input = input("- Please Enter Your Year of Birth")
    try:
        input_int = int(user_input)
        is_valid_date = 1900 < input_int < 2020  # year must be between 1900 and 2020
        if is_valid_date:
            return input_int
        else:  # if input year is not valid, recurse
            return ask_eng_year()
    except ValueError:  # if input was not an integer, recurse
        return ask_eng_year()


def ask_born_before_mm_newyear():
    clear_screen()
    user_input = input("- Are you born on/before April 15 of the year? (Y/N)")
    precondition = user_input == "Y" or user_input == "N"
    if precondition:
        return user_input == "Y"
    else:
        return ask_born_before_mm_newyear()  # Recurse



def main():
    input("press Enter to start the program ....")
    clear_screen()

    eng_year = ask_eng_year()
    is_before_new_year = ask_born_before_mm_newyear()

    mm_year = convert_to_mm_year(eng_year, is_before_new_year)

    zodiac_number = mm_year % 7

    zodiac_name = get_zodiac_name(zodiac_number)
    result = \
        "Your were born on Myanmar year " + str(mm_year) + \
        "\nYour Burmese zodiac planet is " + zodiac_name + \
        "\nYour zodiac number is " + str(zodiac_number)

    clear_screen()
    print(result)
    main()

# initial calling
main()