The GIL Revealed: Why Python Threading Isn't Really Parallel

DEV CommunityThursday, October 30, 2025 at 12:07:09 AM
In a recent discussion about Python's threading module, Timothy faced challenges while trying to enhance the speed of a data processing script. Despite his efforts, the results were confusing, prompting him to seek help from Margaret. This scenario highlights the common misconceptions about threading in Python, particularly its limitations in achieving true parallelism. Understanding these nuances is crucial for developers aiming to optimize their code effectively.
— Curated by the World Pulse Now AI Editorial System

Was this article worth reading? Share it

Recommended Readings
GitHub says TypeScript surpassed Python and JavaScript in August 2025 to become the most used language among its 180M+ developers; India added 5.2M devs in 2025 (The GitHub Blog)
PositiveArtificial Intelligence
In a significant milestone for the tech community, GitHub has announced that TypeScript has overtaken Python and JavaScript to become the most used programming language among its 180 million developers as of August 2025. This shift highlights the growing popularity of TypeScript, particularly as more developers embrace its features for building robust applications. Additionally, India has seen a remarkable increase of 5.2 million developers in 2025, showcasing the country's expanding role in the global tech landscape. This news is important as it reflects the evolving preferences in programming languages and the rapid growth of the developer community.
How Quantum Computing Will Redefine Programming
PositiveArtificial Intelligence
Quantum computing is on the brink of revolutionizing programming as we know it. This groundbreaking technology promises to transform software development, algorithms, and data processing, pushing the boundaries of what computers can achieve. As we explore the potential of quantum computing, it's clear that this leap forward could redefine our approach to technology, making it an exciting time for developers and tech enthusiasts alike.
PyDPF: A Python Package for Differentiable Particle Filtering
PositiveArtificial Intelligence
The introduction of PyDPF, a Python package for differentiable particle filtering, marks a significant advancement in time series analysis. This tool simplifies the application of particle filtering, a method crucial for estimating hidden states in complex systems. By allowing users to easily specify and estimate unknown parameters, PyDPF enhances the accessibility and efficiency of state-space models, making it a valuable resource for researchers and practitioners in data science.
Exploring End-to-end Differentiable Neural Charged Particle Tracking -- A Loss Landscape Perspective
PositiveArtificial Intelligence
A recent study on end-to-end differentiable neural charged particle tracking highlights the importance of advanced software pipelines in measuring high-energy particles. This research is significant as it combines traditional methods with machine learning to enhance the efficiency of detection systems used in scientific, medical, and industrial fields. By optimizing these processes, the study paves the way for improved accuracy and performance in various applications, making it a noteworthy advancement in the field.
From Local Chaos to Container Harmony: Dockerizing a Render Engine for AI Animations
PositiveArtificial Intelligence
In a recent exploration of containerization, a new workflow for packaging Python services using multi-stage Docker builds has been developed. This approach not only enhances consistency and portability but also addresses the common issue of code that works on one machine but fails on another. By leveraging modern dependency management tools, this method promises to streamline the process of creating reliable images for AI animations, making it easier for developers to collaborate and innovate.
Day 18: Python Palindrome Checker Tutorial – Ignore Case, Spaces & Punctuation
PositiveArtificial Intelligence
On Day 18 of the #80DaysOfChallenges, participants are diving into a fun and practical Python project: building a palindrome checker. This challenge is not just about coding; it enhances skills in string manipulation and conditionals, making it ideal for beginners. It's a great way to prepare for coding interviews or simply explore text processing in a hands-on manner.
Collecting Real-Time Data with APIs: A Hands-On Guide Using Python
PositiveArtificial Intelligence
This article provides a practical guide on using APIs for real-time data collection with Python. It explains the importance of APIs, how they function, and offers step-by-step instructions for beginners. Understanding APIs is crucial in today's data-driven world, as they enable seamless integration and access to valuable information.
How to Implement Geofencing Using Python and PostGIS
PositiveArtificial Intelligence
Geofencing is revolutionizing GPS tracking and location-based services by allowing developers to create virtual boundaries that trigger actions when objects enter or exit these areas. This technology is essential for applications like delivery services, fleet management, and IoT solutions. In this guide, we delve into how to implement geofencing using Python and PostGIS, showcasing the spatial capabilities of PostgreSQL. Understanding this process is crucial for developers looking to enhance their applications with location-based functionalities.
Latest from Artificial Intelligence
Aimtron’s Design-Led Approach Secures Manufacturing Wins
PositiveArtificial Intelligence
Aimtron is making significant strides in its operations in India with a greenfield expansion and securing design wins that highlight its successful ODM approach. This is important as it not only boosts local manufacturing capabilities but also positions Aimtron as a competitive player in the industry, potentially leading to more job opportunities and innovation in the tech sector.
Pure CSS Pumpkin Patch - Sanjay Naker
PositiveArtificial Intelligence
Sanjay Naker's submission for the Frontend Challenge - Halloween Edition showcases a creative use of pure CSS to create a pumpkin patch. This project not only highlights the artistic potential of CSS but also encourages developers to explore their creativity through coding. It's a fun way to celebrate Halloween while pushing the boundaries of web design.
The Hardest Bug to Fix Is a Misaligned Mindset
NeutralArtificial Intelligence
In a recent reflection on debugging challenges, the author shares an experience of spending three days trying to fix a non-existent race condition. Despite facing real symptoms like intermittent failures and confusing logs, the true issue lay in a misaligned mindset. This story highlights the importance of maintaining an open and adaptable mental model when troubleshooting complex systems, reminding us that sometimes the biggest obstacles are not technical but cognitive.
Conversion Optimization: How to Build a Subscription Page That Actually Converts
PositiveArtificial Intelligence
In the digital economy, the subscription model is key for sustainable business growth, transforming one-time users into loyal customers. This article highlights the importance of a well-designed subscription page, which serves as a crucial decision point for potential subscribers. By optimizing this page, businesses can significantly enhance their conversion rates, making it a vital aspect of their overall strategy.
Top Free AI Chatbots You Can Try Today — No Coding Required!
PositiveArtificial Intelligence
Discover the top free AI chatbots available today that require no coding skills to use. This article highlights user-friendly options that can enhance productivity and creativity, making advanced technology accessible to everyone. With the rise of AI, these tools are not just a novelty but essential for individuals and businesses looking to streamline communication and automate tasks.
Linux Text Processing: Master grep, awk, sed & jq for Developers
PositiveArtificial Intelligence
This article is a practical guide for developers looking to enhance their skills in Linux text processing using tools like grep, awk, sed, and jq. It provides clear syntax explanations, real-world examples, and best practices, making it a valuable resource for sysadmins and data engineers. Mastering these tools can significantly improve efficiency in handling text data, which is crucial in today's data-driven environment.