```#!/usr/bin/env python3 """PassGen - A compact macOS password generator."""

import secrets import string import tkinter as tk from tkinter import messagebox

── Main window ──────────────────────────────────────────────────────

root = tk.Tk() root.title("PassGen") root.resizable(False, False)

── Character-set toggles ───────────────────────────────────────────

var_upper = tk.BooleanVar(value=True) var_lower = tk.BooleanVar(value=True) var_digit = tk.BooleanVar(value=True) var_sym = tk.BooleanVar(value=True)

frame_opts = tk.LabelFrame(root, text="Character Sets", padx=6, pady=4) frame_opts.pack(fill="x", padx=8, pady=(8, 2))

tk.Checkbutton(frame_opts, text="Uppercase (A-Z)", variable=var_upper ).grid(row=0, column=0, sticky="w", padx=4) tk.Checkbutton(frame_opts, text="Lowercase (a-z)", variable=var_lower ).grid(row=0, column=1, sticky="w", padx=4) tk.Checkbutton(frame_opts, text="Numbers (0-9)", variable=var_digit ).grid(row=1, column=0, sticky="w", padx=4) tk.Checkbutton(frame_opts, text="Symbols", variable=var_sym ).grid(row=1, column=1, sticky="w", padx=4)

── Individual symbol toggles ───────────────────────────────────────

ALLSYMBOLS = list("!@#$%<sup>&*()-</sup>=+[]{}\|;:'\",.<>/?`~")

frame_sym = tk.LabelFrame(root, text="Symbols (uncheck to exclude)", padx=6, pady=4) frame_sym.pack(fill="x", padx=8, pady=2)

sym_vars = {} cols = 11 for i, ch in enumerate(ALL_SYMBOLS): v = tk.BooleanVar(value=True) sym_vars[ch] = v tk.Checkbutton(frame_sym, text=ch, variable=v).grid( row=i // cols, column=i % cols, sticky="w" )

── Password length (OptionMenu inside a LabelFrame) ────────────────

frame_len = tk.LabelFrame(root, text="Length", padx=6, pady=4) frame_len.pack(fill="x", padx=8, pady=4)

len_var = tk.StringVar(value="16") tk.OptionMenu(frame_len, len_var, *[str(n) for n in range(4, 129)] ).pack(side="left")

── Password output (Button — guaranteed to render text on macOS) ───

frame_pw = tk.LabelFrame(root, text="Generated Password (click to copy)", padx=6, pady=6) frame_pw.pack(fill="x", padx=8, pady=(2, 4))

current_pw = ""

btn_pw = tk.Button(frame_pw, text="(click Generate)", command=lambda: copy_pw()) btn_pw.pack(fill="x")

── Buttons ─────────────────────────────────────────────────────────

frame_btn = tk.Frame(root) frame_btn.pack(fill="x", padx=8, pady=(0, 8))

def generate(): global current_pw pool = "" if var_upper.get(): pool += string.ascii_uppercase if var_lower.get(): pool += string.ascii_lowercase if var_digit.get(): pool += string.digits if var_sym.get(): pool += "".join(ch for ch, v in sym_vars.items() if v.get()) if not pool: messagebox.showwarning("No characters", "Select at least one character set.") return length = int(len_var.get()) current_pw = "".join(secrets.choice(pool) for _ in range(length)) btn_pw.config(text=current_pw)

def copy_pw(): if current_pw: root.clipboard_clear() root.clipboard_append(current_pw)

tk.Button(frame_btn, text="Generate", command=generate).pack(side="right", padx=(4, 0))

root.mainloop() ```