Python GUI Password Generator with Tkinter and Clipboard Support

Creating a graphical‑interface password generator in Python allows you to control security, customize policies, learn cryptography, and avoid third‑party risks.

The following example uses tkinter for the GUI, random and string to generate a password, and optionally pyperclip to copy the result to the clipboard.

import tkinter as tk
from tkinter import ttk
from tkinter import messagebox
import random
import string
try:
    import pyperclip
except ImportError:
    pyperclip = None

def generate_password(length=12):
    """Generate a random password of given length."""
    characters = string.ascii_letters + string.digits + string.punctuation
    return ''.join(random.choice(characters) for _ in range(length))

def generate_and_display():
    """Generate password and display it."""
    length = int(length_entry.get())
    password = generate_password(length)
    result_label.config(text=f"生成的密码: {password}")

def copy_to_clipboard():
    """Copy the displayed password to the clipboard."""
    password = result_label.cget("text").replace("生成的密码: ", "")
    if pyperclip and password:
        pyperclip.copy(password)
        messagebox.showinfo("成功", "密码已复制到剪贴板！")
    elif not pyperclip:
        messagebox.showerror("错误", "复制失败，请确保已安装 'pyperclip'。")
    else:
        messagebox.showinfo("提示", "尚未生成密码。")

app = tk.Tk()
app.title("密码生成器")
app.geometry("400x200")
app.resizable(False, False)
app.configure(bg="#F0F0F0")
font_style = ("Arial", 10)

length_label = ttk.Label(app, text="密码长度:", font=font_style, background="#F0F0F0")
length_label.pack(pady=10)

length_entry = ttk.Entry(app, font=font_style, width=10)
length_entry.pack(pady=5)
length_entry.insert(0, "12")

generate_button = ttk.Button(app, text="生成密码", command=generate_and_display, style='TButton')
generate_button.pack(pady=10)

result_label = ttk.Label(app, text="生成的密码: ", font=font_style, wraplength=300, justify="center", background="#F0F0F0")
result_label.pack(pady=10)

copy_button = ttk.Button(app, text="复制密码", command=copy_to_clipboard, style='TButton')
copy_button.pack(pady=(10, 0))

style = ttk.Style()
style.configure('TButton', font=font_style, padding=6, relief="flat", background="#4CAF50", foreground="black")
style.map('TButton', background=[('active', "#45a049")])

app.mainloop()

The script creates a fixed‑size, non‑resizable window with an entry for password length, buttons to generate and copy the password, and uses style customization for a green button theme.

Building your own generator gives higher security control, flexibility, and privacy while providing a practical learning project.