Random Password

#!/usr/bin/env python3
# @docktopus.schemaVersion 1
# @docktopus.title Random Password
# @docktopus.mode paste
# @docktopus.icon key
# @docktopus.keyword pw
# @docktopus.description Pastes a strong random password into the app in front. Defaults to 20 characters; enter a length from 8 to 128.
# @docktopus.argument1 {"type": "text", "placeholder": "Length (optional)", "optional": true}
# @docktopus.author Docktopus

import secrets
import string
import sys

raw = sys.argv[1].strip() if len(sys.argv) > 1 else ""
length = int(raw) if raw.isdigit() else 20
if not 8 <= length <= 128:
    sys.exit("Choose a length from 8 to 128.")

# Leave out characters that are easy to confuse when read aloud or typed by hand.
letters = "".join(ch for ch in string.ascii_letters if ch not in "lIO")
digits = "23456789"
symbols = "-_.!@#%+="
alphabet = letters + digits + symbols

while True:
    password = "".join(secrets.choice(alphabet) for _ in range(length))
    if (any(ch.islower() for ch in password) and any(ch.isupper() for ch in password)
            and any(ch in digits for ch in password) and any(ch in symbols for ch in password)):
        break
print(password, end="")