Python Fundamentals: Functions

Functions in Python allow you to organise and reuse code. They can take in parameters and return results, making code more modular and easier to manage.

a. Defining a Function: Use the 'def' keyword to define a function.

Code

def greet():
    print("Hello, World!")
    
greet()

Output

Hello, World!

b. Function with Parameters: Functions can accept parameters to process.

Code

def greet(name):
    print(f"Hello, {name}!")
    
greet("Alice")

Output

Hello, Alice!

c. Returning Values: Functions can return values using the 'return' statement.

Code

def add(a, b):
    return a + b
    
result = add(5, 3)
print(result)

Output

8

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