set

 A set in Python is an unordered, mutable collection of unique elements. It does not allow duplicate values and is commonly used for mathematical set operations like union, intersection, and difference.


Key Characteristics of Sets:


✅ Unordered – Elements do not maintain a specific order.

✅ Mutable – You can add or remove elements.

✅ Unique Elements – No duplicate values allowed.

✅ No Indexing – Cannot access elements using an index.




# Creating sets

number = {1, 2, 3, 4, 5}

print(number)

print(type(number))


# Sets ignore duplicate values

newnumber = {1, 2, 3, 4, 5, 4, 3, 2, 2, 1, "tt"}

print(newnumber)


# Adding an element

newnumber.add("Praveen")

print(newnumber)


# Merging two sets

thisset = {"apple", "banana", "cherry"}

tropical = {"pineapple", "mango", "papaya"}

thisset.update(tropical)

print(thisset)


# Merging a list into a set

thisset = {"apple", "banana", "cherry"}

mylist = ["kiwi", "orange"]

thisset.update(mylist)

print(thisset)


# Removing an element using remove()

thisset = {"apple", "banana", "cherry"}

thisset.remove("banana")

print(thisset)


# Removing an element using discard()

thisset = {"apple", "banana", "cherry"}

thisset.discard("banana")

print(thisset)


# Removing a random element using pop()

thisset = {"apple", "banana", "cherry"}

x = thisset.pop()

print(x)  # Prints the removed element

print(thisset)


# Clearing all elements from a set

thisset = {"apple", "banana", "cherry"}

thisset.clear()

print(thisset)  # Output: set()


# Deleting the set completely

thisset2 = {"apple", "banana", "cherry"}

del thisset2

# print(thisset2)  # Uncommenting this will raise an error: NameError

Comments

Post a Comment

Popular posts from this blog

Mastering Django: Project and App Folder Structure

Mastering Django: Project and App Folder Structure 1. Django Project Folder Structure When you create a Django project, it follows a structured format, ensuring an organized development environment. projectname/ │── manage.py # Command-line utility to manage the project │── db.sqlite3 # Default SQLite database file (if used) │── projectname/ # Main project directory containing settings │ │── __init__.py # Marks this directory as a Python package │ │── settings.py # Project-wide configuration settings │ │── urls.py # Main URL routing for the project │ │── asgi.py # Entry point for ASGI-compatible web servers (optional) │ │── wsgi.py # Entry point for WSGI-compatible web servers │── appname/ # A Django app directory (e.g., blog, users, etc.) │ │── __init__.py # Marks this directory as a Python package │ │── admin.py # Configuration for Django admin panel │ │── apps.py # Application configuration │...
Read more

Mastering Django Template Language (DTL): A Step-by-Step Guide

  Mastering Django Template Language (DTL): A Step-by-Step Guide Django's Template Language (DTL) is a powerful tool for rendering dynamic data on web pages using HTML templates . This guide will cover how to pass data from views to templates , display variables, use conditional statements, apply loops, and implement filters with practical examples. ✅ 1. Passing Data from Views to Templates 🧠 How to Pass Data: Data is passed using the context dictionary in the render() function. # views.py from django.shortcuts import render # Simple Template Rendering def home(request): return render(request, 'myapp/home.html') # Dynamic Data Rendering def user_info(request): context = { 'name': 'John Doe', 'age': 25, 'fruits': ['Apple', 'Banana', 'Cherry'], 'is_logged_in': True, 'score': 85, 'hobbies': ['Reading', 'Gaming', ...
Read more

How to Add Templates in Django: Step-by-Step Guide

  How to Add Templates in Django: Step-by-Step Guide Django's Template System allows developers to create web pages by using HTML templates. Adding templates to a Django project involves setting up the template directory , configuring settings.py , and rendering templates through views. This guide will focus solely on how to add templates without involving dynamic data. ✅ 1. Setting Up Your Django Project # Step 1: Create a new Django project and app django-admin startproject myproject cd myproject python manage.py startapp myapp 📂 Project Directory Structure: myproject/ ├── myapp/ │ ├── templates/ │ │ └── myapp/ │ │ ├── home.html │ └── views.py ├── manage.py └── settings.py myapp/templates/myapp/ : This is where all app-specific templates will reside. Keeping templates within the app directory is a best practice to avoid conflicts when multiple apps are used. ✅ 2. Configuring Templates in settings.py TEMPLATES = [ { 'BACKEND...
Read more