This article introduces Python coroutines as a lightweight concurrency model and provides ten practical code examples demonstrating how to use the asyncio, gevent, and trio libraries for asynchronous I/O, concurrent network requests, file operations, task scheduling, and more.
This article explores three Python coroutine libraries - asyncio, gevent, and trio - providing 10 practical code examples demonstrating their use in asynchronous programming for tasks like IO operations, network requests, file handling, and more.
This article demonstrates how adding two gevent monkey‑patch lines to a feapder spider reduces CPU usage from 121% to 99% while changing the effective thread count from 36 to 12, and discusses the underlying principle, performance trade‑offs, and future directions for coroutine support.
This tutorial explains Python's iteration concepts, how to identify and create iterable objects, implement custom iterables and iterators, use the iter() and next() functions, build generators with yield, control execution with coroutines, and leverage greenlet and gevent for cooperative multitasking.
This article analyzes the intermittent “Instance XXX is not bound to a Session” error that occurs after converting a Flask‑SQLAlchemy endpoint from serial to multithreaded/gevent concurrency, reproduces the issue with test code, explains the root cause in session handling, and provides a concrete fix by patching gevent before session initialization.
This article explores how a Python‑based UDP data‑collection service suffered high CPU usage under load and how switching from multithreading to coroutine frameworks like Eventlet and Gevent dramatically reduced CPU consumption while maintaining throughput.
This guide compares Scrapy (especially version 0.16) with gevent‑based crawling solutions, outlines their strengths, weaknesses, and common pitfalls, and provides practical tips, resource links, and deployment advice for building efficient Python web scrapers.
This article investigates the feasibility of improving Locust's HTTP request performance by replacing urllib3 with PycURL, explores protocol extensions, examines the impact of gevent's monkey patching, and concludes that the substitution does not yield significant gains despite a modest single‑user speedup.
