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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?")

Use this code for Hello World Program  #Prints a Message saying "Hello World!" print("Hello World!") Output : Hello World! 

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...