Welcome to Day 5 of your Python learning journey! Today, we’re delving into advanced concepts that will elevate your programming skills. Buckle up for a thrilling exploration of decorators, generators, and object-oriented programming (OOP).

1. Decorators: Elevating Functionality

Decorators in Python provide a powerful way to modify or enhance the behavior of functions. Let’s start by understanding the basics:

def my_decorator(func): def wrapper():

print(“Something is happening before the function is called.”)

func() print(“Something is happening after the function is called.”) return wrapper @my_decorator def say_hello(): print(“Hello!”) say_hello()

Explore creating your own decorators and applying them to functions. Experiment with decorators that accept parameters for increased flexibility.

2. Generators: Efficient Iteration

Generators offer a memory-efficient way to iterate over large datasets. Learn how to create generators using the yield keyword:

def square_numbers(n): for i in range(n): yield i ** 2 for num in square_numbers(5): print(num)

Experiment with generators for processing large datasets and understand how they differ from regular functions.

3. Object-Oriented Programming (OOP): Unleashing the Power of Classes

Object-oriented programming is a paradigm that organizes code into classes and objects. Let’s explore the fundamentals:

class Dog: def __init__(self, name, age): self.name = name self.age = age def bark(self): print(“Woof!”) my_dog = Dog(“Buddy”, 3) print(my_dog.name) my_dog.bark()

Understand the concepts of encapsulation, inheritance, and polymorphism. Create your own classes and experiment with building relationships between them.

Assignments for Day 5: Advanced Concepts

  1. Part 1: Decorators

Write a decorator that measures the time a function takes to execute.

Create a decorator that logs the parameters and return value of a function.

Part 2: Generators

3. Implement a generator that produces a Fibonacci sequence up to a given limit.

Write a generator that reads lines from a large text file and yields them one at a time.

Part 3: Object-Oriented Programming

5. Define a class representing a geometric shape with methods to calculate area and perimeter.

Create a subclass of the shape class for a specific shape (e.g., rectangle or circle) and override the necessary methods.


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