import argparse
import sys

parser = argparse.ArgumentParser(description="Something")
parser.add_argument(
    "--output_filename",
    type=argparse.FileType("w"),
    required=True,
    help="Name of Excel output file.",
    nargs="+",
)
parser.add_argument(
    "--due_date_field",
    type=str,
    help="Column name for due date field. 'Due Date' by default.",
)

if __name__ == "__main__":
    args = parser.parse_args()
