Determines registration date and location when given an irish license plate number

ireland.py

import string

index_codes = {
    "C":"Cork", "CE":"Clare",
    "CN":"Cavan", "CW":"Carlow",
    "D":"Dublin", "DL":"Donegal",
    "G":"Galway", "KE":"Kildare",
    "KK":"Kilkenny", "KY":"Kerry",
    "L":"Limerick", "LD":"Longford",
    "LH":"Louth", "LM":"Leitrim",
    "LS":"Laois", "MH":"Meath",
    "MN":"Monaghan", "MO":"Mayo",
    "OY":"Offaly", "RN":"Roscommon",
    "SO":"Sligo", "T":"Tipperary",
    "W":"Waterford", "WH":"Westmeath",
    "WX":"Wexford", "WW":"Wicklow"
    }

def parse_plate(to_parse):
    final = ""
    try:
        for section in to_parse:
            worktext = ""
            if to_parse.index(section) == 0:
                if len(section) == 3:
                    working = section[:2]
                    worktext += ("20" + str(working))
                    working = section[2]
                    if working == 1:
                        worktext += " Jan-June"
                    else:
                        worktext += " Jul-Dec"
                else:
                    if int(section[0]) <= 1:
                        worktext = "20" + str(section)
                    else:
                        worktext = "19" + str(section)
            else:
                for key, value in index_codes.items():
                    if section == key:
                        worktext = "registered in " + value
            final += worktext + " "
    except:
        print("Invalid plate")

    print(final)

def main():
    while True:
        plate = str(input("Enter the full license plate:"))
        s_plate = plate.split("-")
        if len(s_plate) == 3:
            break

    del s_plate[2]
    parse_plate(s_plate)
    
while True:
    main()