int an hex, hex to int

hexgoingon.py

#!/usr/bin/python3

import re
import sys
import argparse

def getHex(a_user_int):
    return hex(a_user_int).split('x')[-1].upper()

def getInt(a_hex):
    return int(a_hex, 16)

if __name__ == '__main__':
    l_parser = argparse.ArgumentParser()
    l_parser.add_argument('hexorint', help="Enter either the int or hex for customer id")

    l_args = l_parser.parse_args()


    opts = (vars(l_args))

    if not re.match('[0-9|A-F|a-f]+$', opts['hexorint']):
        print("Whachu talkin bout willis!?")
        sys.exit(0)

    try:
        if int(opts['hexorint']):
            print(getHex(int(opts['hexorint'])))
    except ValueError:
        print(getInt(opts['hexorint']))