remake/port for python using argparse

[H4ppy-04]

I remade this in python but now i don't know what to do with it lol. anyway here ya go:

import subprocess
import os
import sys
import argparse

BANNER = """
╺┳┓╻ ╻┏┓╻┏━┓┏┳┓╻┏━╸   ╻ ╻┏━┓╻  ╻  ┏━┓┏━┓┏━┓┏━╸┏━┓
 ┃┃┗┳┛┃┗┫┣━┫┃┃┃┃┃     ┃╻┃┣━┫┃  ┃  ┣━┛┣━┫┣━┛┣╸ ┣┳┛
╺┻┛ ╹ ╹ ╹╹ ╹╹ ╹╹┗━╸   ┗┻┛╹ ╹┗━╸┗━╸╹  ╹ ╹╹  ┗━╸╹┗╸
"""

THEMES = [
    "aurora",
    "beach",
    "bitday",
    "chihuahuan",
    "cliffs",
    "colony",
    "desert",
    "earth",
    "exodus",
    "factory",
    "firewatch",
    "forest",
    "gradient",
    "home",
    "island",
    "lake",
    "lakeside",
    "market",
    "mojave",
    "moon",
    "mountains",
    "room",
    "sahara",
    "street",
    "tokyo",
]

__program__ = "dmenu"
__authors__ = ["https://github.com/adi1090x/dynamic-wallpaper/graphs/contributors"]
__version__ = 3.0

DEFAULT_THEME = "tokyo"
EXEC_PATH = "/home/joshua/.local/bin/pipes.sh"
HOME = os.getenv("$HOME")

if not os.path.exists(EXEC_PATH):
    raise FileNotFoundError("pipes.sh is not in the local path")

parser = argparse.ArgumentParser(
    prog=__program__,
    # description=BANNER,
    #epilog="".join([i + " " for i in __authors__]),
)
parser.add_argument(
    "--list-styles",
    help="List available styles",
    action="store_true",
    dest="list",
)
parser.add_argument(
    "-p",
    "--pywal",
    action="store_true",
    help="Use pywal to set wallpaper",
    dest="pywal",
)
parser.add_argument(
    "-s",
    nargs=1,
    type=str,
    dest="style",
    help="Name of the style to apply",
)


args = parser.parse_args()

if args.list:
    print(f"Available styles: {'  '.join(THEMES)}")
    sys.exit()
if args.pywal == False and args.style == None:
    parser.print_help()
    print("""\n\nExamples:
    dwall -s beach        Set wallpaper from 'beach' style
    dwall -p -s sahara    Set wallpaper from 'sahara' style using pywal
    """)
    sys.exit()

theme = args.style[0] if args.style else DEFAULT_THEME
stdargs = [EXEC_PATH, "-p" if args.pywal else "", theme]

subprocess.run(
    " ".join(stdargs),
    cwd=HOME,
    shell=True,
    stderr=subprocess.STDOUT,
)