Create a simple screen locker

Here’s a simple Python script that creates a basic screen locker by displaying a fullscreen window that asks for a password to unlock. It uses tkinter for the GUI and blocks input to other windows until the correct password is entered.

python
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import tkinter as tk

PASSWORD = "1234"  # Set your password here

def check_password():
    if entry.get() == PASSWORD:
        root.destroy()
    else:
        entry.delete(0, tk.END)
        label.config(text="Wrong password, try again.", fg="red")

root = tk.Tk()
root.attributes("-fullscreen", True)
root.configure(bg="black")

label = tk.Label(root, text="Enter Password to Unlock:", fg="white", bg="black", font=("Arial", 24))
label.pack(pady=20)

entry = tk.Entry(root, show="*", font=("Arial", 24))
entry.pack(pady=20)
entry.focus()

button = tk.Button(root, text="Unlock", command=check_password, font=("Arial", 20))
button.pack(pady=20)

root.mainloop()

How it works:

• Runs a fullscreen black window on top of everything.

• Shows a password prompt with an entry box.

• Only closes (unlocks) if the correct password is entered.

• Blocks interaction with other apps until unlocked.

To run: Save the code as screen_locker.py and run python screen_locker.py.

Would you like a version with additional security features or on another platform?