Articles tagged "Python"
Hand-picked programming notes, guides, and tutorials for your placement preparation.
Django vs FastAPI in 2026: Which Python Framework to Choose?
Django or FastAPI—which Python framework should you choose in 2026? Compare architecture, performance, async support, ORM, AI integration, and developer experience to find the best fit for your next backend project.
LRU Cache Explained: HashMap + Doubly Linked List (Python Guide)
Learn how the LRU (Least Recently Used) Cache achieves constant-time get and put operations by combining a HashMap with a Doubly Linked List. This guide includes Python implementations, visual explanations, interview pitfalls, production-ready alternatives using OrderedDict, and real-world applications in Redis, databases, browsers, and operating systems.
Kadane's Algorithm Explained: Maximum Subarray Sum in O(N)
Master Kadane's Algorithm with an intuitive explanation, visual walkthrough, Python implementation, and interview tips. Learn how this elegant dynamic programming technique finds the maximum subarray sum in O(N) time while handling tricky edge cases like all-negative arrays.
Razorpay Django Integration: Secure Payment Gateway with Signature Verification
Integrating Razorpay into Django isn't just about opening a checkout popup—it's about building a secure payment workflow. This step-by-step guide walks you through creating Razorpay orders, implementing the checkout page, verifying payment signatures on the backend, and preparing your application for production with webhooks, refunds, and idempotency.
Top 25 Python Interview Questions (2026 Edition)
Prepare for your next Python interview with these essential questions covering decorators, generators, memory management, and OOP principles.