What are some examples of functions in Python?

What are some examples of functions in Python?

Python functions are reusable blocks of code. Here are a few examples:

1. Simple Function:

   def greet(name):
       return f'Hello, {name}!'
   

2. Function with Default Argument:

   def add(a, b=5):
       return a + b
   

3. Lambda Function:

   square = lambda x: x * x
   

Would you like to see more examples or details on a specific type?

Can you explain the lambda function example?

Sure! A lambda function in Python is a small anonymous function defined with the keyword lambda. It can take any number of arguments but can only have one expression. For example:

square = lambda x: x * x

This creates a function square that returns the square of its input. You can use it like this:

print(square(5))  # Output: 25

What about functions with multiple arguments?

Functions with multiple arguments can be defined by listing the parameters in the function definition. For example:

def multiply(x, y):
    return x * y

You can call this function with two arguments:

result = multiply(3, 4)  # Output: 12