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Our most popular Python tutorials
Learn a practical, step-by-step approach to speed up your Python programs. This post covers profiling with cProfile and tracemalloc, micro-benchmarking with timeit and perf, memory and line profiling, and how generators, context managers, and asyncio affect performance — with clear, runnable examples.
Discover how to harness Python's asyncio for efficient concurrency with practical, real-world examples. This post walks you from core concepts to production-ready patterns — including web scraping, robust error handling with custom exceptions, and a Singleton session manager — using clear explanations and ready-to-run code.
Ever wondered why your Python scripts fail miserably during flaky network conditions? In this comprehensive guide, you'll learn how to implement resilient retry logic for API calls, ensuring your applications stay robust and reliable. Packed with practical code examples, best practices, and tips on integrating with virtual environments and advanced formatting, this post will elevate your Python skills to handle real-world challenges effortlessly.
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Build a scalable, real-time chat app in Python using WebSockets, FastAPI, and Pydantic. This step-by-step tutorial covers architecture, working code for server and browser clients, data validation, CLI utilities with Click, scaling tips using Redis and Dask, and production-ready best practices.
Dive into the world of Python's data classes and discover how they revolutionize the way you handle data structures, making your code more readable and maintainable. This comprehensive guide walks intermediate Python developers through practical implementations, complete with code examples and best practices, to help you streamline your projects efficiently. Whether you're building robust applications or optimizing existing ones, mastering data classes will elevate your coding prowess and reduce boilerplate code.
Learn how to implement the Observer pattern in Python with clear, practical examples—from a minimal, thread-safe implementation to real-world uses like automation scripts and event buses. This post walks you through code, edge cases, unit tests, and performance tips (including functools memoization) so you can apply the pattern confidently.
Dive into the world of asynchronous programming with Python's AsyncIO to supercharge your web scraping projects. This comprehensive guide walks you through building efficient, non-blocking scrapers that handle multiple requests concurrently, saving time and resources. Whether you're automating data collection or exploring advanced Python techniques, you'll gain practical skills with real code examples to elevate your programming prowess.
Learn how to build a production-ready real-time chat application using **Django Channels**, WebSockets, and Redis. This step-by-step guide covers architecture, async consumers, routing, deployment tips, and practical extensions — exporting chat history to Excel with **OpenPyXL**, applying **Singleton/Factory patterns** for clean design, and integrating a simple **scikit-learn** sentiment model for moderation.
Dive into the power of Python's f-strings, a game-changer for string formatting since Python 3.6, and discover how they streamline code in everyday programming tasks. This comprehensive guide breaks down their syntax, real-world uses, and best practices, making it easier for intermediate learners to create readable, efficient strings. Whether you're automating scripts or building web apps, unlock tips to elevate your Python skills and boost productivity.