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Python Function Default Arguments

Sure thing! In Python, default arguments allow you to specify default values for parameters in a function. This means that if the caller of the function doesn't provide a value for a particular parameter, the default value will be used. It provides flexibility and makes your functions more versatile.

Let's dive into an example to illustrate default arguments in Python:

def greet(name, greeting="Hello"):
    """
    This function greets a person with a default greeting.

    Parameters:
    - name: The name of the person to greet.
    - greeting: The greeting message. Default is "Hello".
    """
    print(f"{greeting}, {name}!")

# Calling the function without providing the 'greeting' argument
greet("Alice")  # Output: Hello, Alice!

# Calling the function with a custom greeting
greet("Bob", "Hi")  # Output: Hi, Bob!
Python

In this example, the greet function has two parameters: name and greeting. The greeting parameter has a default value of "Hello". When you call the function without providing a value for greeting, it automatically uses the default value. However, if you provide a value for greeting, it overrides the default.

Default arguments are useful when you want to define a function with some common behavior but allow users to customize certain aspects without requiring them to provide every parameter every time they call the function.

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