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!
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.
