Python DynamoDB: How to Insert Data
In this article, you'll learn how to insert items into a DynamoDB table using Python and Boto3, the AWS SDK for Python. We'll cover the fundamentals, syntax, complete examples, and also touch on best practices …
Python NumPy Random: An Introduction
NumPy is a powerful library for numerical computing in Python. One of its most useful submodules is numpy.random, which provides tools for generating random numbers and performing probabilistic simulations. In this article, we’ll explore the …
Creating a Basic Update API with Django REST Framework
An Update API allows clients to modify an existing resource in the database. In RESTful APIs, this usually corresponds to a PUT or PATCH request. In this guide, we’ll walk through how to create an …
Using SlugRelatedField in Django REST Framework
In Django REST Framework (DRF), relationships between models are often represented by their primary keys. However, in many APIs, using human-readable identifiers (like a username, email, or a slug field) is more user-friendly and expressive. …
Python Multithreading vs Multiprocessing: Key Differences and Use Cases
Introduction Python developers often face the big question: Should I use multithreading or multiprocessing for concurrency? While both approaches allow you to run tasks concurrently, they solve different problems: Multithreading → best for I/O-bound tasks …
Python SQLite: How to Create a Table
Creating tables is a fundamental step when working with databases. In SQLite, a table is where your data is stored, structured in columns and rows. With Python's built-in sqlite3 module, you can easily create and …
Python NumPy: Uniform Distribution Explained
The uniform distribution is one of the simplest and most intuitive probability distributions. If every outcome in a range is equally likely, you're dealing with a uniform distribution. Using NumPy, Python makes it easy to …
Custom Permissions in Django Rest Framework
Permissions in Django Rest Framework (DRF) control who can access what in your APIs. While DRF provides useful built-in permissions (like IsAuthenticated, IsAdminUser, etc.), most real-world applications require custom permission logic. In this article, you’ll …
Python BigQuery: Using ORDER BY to Sort Query Results
The ORDER BY clause in SQL is used to sort query results based on one or more columns. In BigQuery, this clause works just like standard SQL, and using it with Python via the BigQuery …
PHP File Upload: A Complete Guide to Securely Handling File Uploads in PHP
Introduction: Why PHP File Uploads Matter File uploads are an essential part of many web applications—profile pictures, PDF forms, product images, and document submissions all rely on user uploads. PHP provides a straightforward way to …
Using post_save in Django with Serializers and Models
Introduction: Why Use post_save in Django? In real-world Django applications, you often need to trigger additional actions immediately after saving a model instance — such as: Sending email notifications Updating related models Logging or analytics …
Testing Django REST APIs with APITestCase: A Complete Guide
Introduction: Why API Testing with APITestCase Matters In modern web applications, APIs act as the contract between frontend and backend. Even a small change in the backend can silently break functionality—if it’s not tested. That’s …
Python PostgreSQL Tutorial – Filtering Records with WHERE Clause
In real-world applications, retrieving all rows from a database is rarely useful. The WHERE clause lets you filter records based on conditions. In this tutorial, you'll learn how to use WHERE in PostgreSQL queries via …
How to Pick a Random Color from an Array Using CSS and JavaScript
In modern web design, adding a bit of randomness can make your page more dynamic and visually engaging. One fun way to do this is by assigning random colors to elements every time a page …
Django Models – Update Data
In Django, updating data in the database is easy and intuitive, thanks to its powerful Object-Relational Mapper (ORM). Once you’ve defined your models and inserted data, you can update it: From the Python shell Through …