# 🕷️ Spider Attack (Tkinter GUI Project) **Spider Attack** is a fun and interactive Python project that displays randomly spawning spider images across your entire screen. It’s built using **Tkinter** for the GUI and **Pillow (PIL)** for image handling. --- ## 🚀 Features - Fullscreen immersive window. - Always stays on top of all other windows. - Transparent black background (on Windows). - Spiders appear randomly every 0.5 seconds. - Designed as a visual prank or creative GUI demo. --- ## 🧩 Code Overview ```python import tkinter as tk from PIL import Image, ImageTk import random root = tk.Tk() root.attributes('-fullscreen', True) root.attributes('-topmost', True) root.attributes('-transparentcolor', 'black') w = root.winfo_screenwidth() h = root.winfo_screenheight() canvas = tk.Canvas(root, width=w, height=h, bg='black', highlightthickness=0) canvas.pack() img = Image.open("spider.png") spider_img = ImageTk.PhotoImage(img) def add_spider(): x = random.randint(0, w) y = random.randint(0, h) canvas.create_image(x, y, image=spider_img) root.after(500, add_spider) root.protocol('WM_DELETE_WINDOW', lambda: None) add_spider() root.mainloop()

1. The program opens a Tkinter fullscreen window.
2. The window stays always on top of other apps.
3. The -transparentcolor attribute makes all black areas invisible (Windows only).
4. A spider image is loaded from spider.png.
5. Every 500 ms, a new spider is drawn at a random location on the screen.
6. The window can’t be closed using the normal “X” button, creating a continuous effect.

Install the required library:

pip install pillow

1. Place a transparent-background image named spider.png in the same folder as your script.

2. Run the program:

   python main.py

3. Enjoy watching spiders crawl randomly on your screen.

To exit:

• Windows: Press Alt + F4
• macOS: Press Cmd + Q
• Or stop the program in the terminal with Ctrl + C.

This code works perfectly on Windows, where -transparentcolor 'black' removes all black pixels from the window — giving a realistic transparent effect where spiders appear to crawl over your desktop and other windows.

If you run this program on macOS, you’ll likely see the following error:

_tkinter.TclError: bad attribute "-transparentcolor" 

The attribute -transparentcolor works only on Windows, not on macOS or Linux. macOS uses a different underlying window system (Cocoa) that Tkinter doesn’t expose color-based transparency for.

Use the -transparent and -alpha attributes instead:

import tkinter as tk from PIL import Image, ImageTk import random root = tk.Tk() root.attributes('-fullscreen', True) root.attributes('-topmost', True) root.attributes('-transparent', True) # macOS supports this root.attributes('-alpha', 0.5) # 1.0 = fully opaque, 0.0 = fully transparent w = root.winfo_screenwidth() h = root.winfo_screenheight() canvas = tk.Canvas(root, width=w, height=h, bg='black', highlightthickness=0) canvas.pack() img = Image.open("spider.png").convert("RGBA") spider_img = ImageTk.PhotoImage(img) def add_spider(): x = random.randint(0, w) y = random.randint(0, h) canvas.create_image(x, y, image=spider_img) root.after(500, add_spider) root.protocol('WM_DELETE_WINDOW', lambda: None) add_spider() root.mainloop()

• macOS transparency (-transparent) only works properly on Tk 8.6.13+.
• You may not get full transparency depending on your Tk version and system theme.
• If you want to simulate transparency, ensure your spider image has a transparent background (use .convert("RGBA")).