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Functions are a fundamental building block in Python, allowing you to organize and reuse code. They are like mini-programs within your main program, performing specific tasks. Here's a breakdown of functions in Python: 1. Defining a Function  * You define a function using the def keyword, followed by the function name, parentheses (), and a colon :.  * The code that the function executes is indented below the def line. def greet(name):     """This function greets the person passed in as a parameter."""     print("Hello, " + name + ". How are you?")

import pygame import time import random pygame.init() # Game Window display_width = 800 display_height = 600 gameDisplay = pygame.display.set_mode((display_width,display_height)) pygame.display.set_caption('Slither') # Colors black = (0,0,0) white = (255,255,255) red = (255,0,0) blue = (0,0,255) # Snake Size block_size = 10 # FPS fps = 15 # Snake Start Position snake_startx = display_width/2 snake_starty = display_height/2 # Change of Snake Direction snake_speed = 0 # Snake List snake_list = [] snake_length = 1 # Random Apple Spawn randAppleX = round(random.randrange(0, display_width - block_size)/10.0)*10.0 randAppleY = round(random.randrange(0, display_height - block_size)/10.0)*10.0 # Game Loop game_over = False game_close = False # Clock clock = pygame.time.Clock() # Message Function def message_to_screen(msg,color):     mesg = font_style.render(msg, True, color)     gameDisplay.blit(mesg, [display_width/2-len(msg)*11/2, display_height/2]) # Game Loop...

Python: A Versatile Programming Language Python is a powerful, versatile, and widely-used programming language known for its readability and simplicity. It's often referred to as a "beginner-friendly" language, but it's also used by professionals for complex applications. Key Features of Python:  * Readability: Python's syntax is designed to be clear and concise, making it easy to learn and understand.  * Versatility: It can be used for a wide range of applications, including:    * Web development (Django, Flask)    * Data science and machine learning (NumPy, Pandas, Scikit-learn)    * Automation (Ansible, Selenium)    * Game development (Pygame)    * System administration    * And much more!  * Large Community: A large and active community provides extensive support, libraries, and frameworks.  * Cross-Platform Compatibility: Python code can run on various operating systems like Windows, macOS, and Linux. G...