Python 网络爬虫框架

requests-html is a Python HTML parsing library and web scraping framework. It functions as an asynchronous HTTP client and a JavaScript rendering engine designed to fetch and parse web pages for structured data extraction. The project integrates a headless browser to execute JavaScript, allowing it to retrieve dynamically generated content that standard HTML parsers cannot see. It provides tools for automated data extraction using CSS selectors and XPath expressions to isolate specific text or attributes from HTML structures. The framework covers network operations including asynchronous pag

Crawl4AI is an AI-powered web crawling and data extraction engine designed to transform complex web content into structured formats. It functions as a headless browser orchestrator, enabling the navigation of dynamic websites, the execution of custom scripts, and the capture of visual assets like screenshots and PDFs. By integrating language models directly into the extraction workflow, the system converts raw HTML into clean, structured data or Markdown files optimized for downstream ingestion. The platform distinguishes itself through a distributed, self-hosted infrastructure that manages l

Scrapy is a comprehensive framework designed for automated web data extraction and large-scale crawling. It operates on an asynchronous, event-driven engine that manages non-blocking network requests and data processing tasks, allowing for the efficient retrieval of structured information from web documents using path-based selectors. The system distinguishes itself through a highly modular architecture that supports complex data collection workflows. Users can implement custom middleware and signal handlers to intercept and modify request flows, while a priority-based scheduler manages concu

Crawlee-python is a web crawling framework for building scalable scrapers using Python. It serves as a comprehensive tool for web scraping automation, providing a system to extract structured data from websites using both lightweight HTTP requests and headless browser automation. The framework is distinguished by its anti-bot evasion capabilities, which include browser fingerprint impersonation and tiered proxy rotation to bypass detection systems and solve challenges such as Cloudflare. It also incorporates artificial intelligence for autonomous website navigation and schema-based data extra

Botasaurus is a Python web scraping framework and headless browser automation system used to build scalable data extraction tools. It functions as a web data extraction tool and OCR document parser, converting website content, images, and PDF files into structured formats such as JSON, CSV, and Excel. The framework distinguishes itself by providing a scraper management interface that allows Python functions to be wrapped in a web-based UI or deployed as standalone desktop applications. This enables non-technical users to trigger extraction jobs and manage tasks via a graphical interface or RE

This project is a Python web scraping tutorial and framework designed for building automated data extraction tools and web crawlers. It provides a structured approach to navigating websites and persisting scraped data to databases. The project includes a toolset for web API analysis, focusing on reverse engineering obfuscated API requests and inspecting network traffic to extract structured data. It also covers optical character recognition workflows to convert visual text within images into machine-readable strings. The framework covers capabilities for headless browser automation to handle

PySpider is a Python web crawling framework designed for automated data extraction. It provides a pipeline for periodically fetching web content, processing HTML, and persisting scraped information into database backends. The system features a web-based management interface for editing scraping scripts, monitoring task progress, and reviewing collected data. It includes a headless browser JavaScript renderer to capture rendered HTML from dynamic web pages and a distributed architecture that uses message queues to scale crawling workloads across multiple nodes. The framework also covers task

Helium is a Python library and high-level wrapper for Selenium designed for browser automation, functional UI testing, and web scraping. It provides a simplified interface for interacting with web applications across different browser engines. The library distinguishes itself by allowing users to identify and interact with web elements using visible text labels rather than relying exclusively on technical identifiers like XPaths or CSS selectors. This approach enables the creation of automation scripts based on human-readable labels. The toolkit covers a broad range of browser automation cap

MediaCrawler is an automated web scraping framework designed to extract public posts, comments, and creator metadata from various social media platforms. It functions as a headless browser automator, utilizing real browser instances to render dynamic content and execute the client-side scripts necessary for interacting with modern web interfaces. The system distinguishes itself through a focus on session persistence and network flexibility. It supports remote debugging to reuse active browser sessions and cookies, which helps minimize the risk of triggering platform security challenges. To ma

Browser-use is a framework for building autonomous agents that navigate, interact with, and extract data from web interfaces using natural language instructions. By acting as an orchestration layer between large language models and browser automation protocols, it enables the execution of complex, multi-step workflows without relying on brittle selectors. The system functions as a headless browser controller, providing a programmatic interface to manage browser instances and execute granular interactions. The project distinguishes itself through its ability to translate high-level intent into

MechanicalSoup is a Python web automation library and scraping framework designed to simulate browser sessions and navigate websites without requiring JavaScript execution. It functions as an HTML parsing tool and HTTP session manager, allowing for the programmatic retrieval of page content and the automation of web interactions. The library distinguishes itself by combining session persistence with automated form interaction. It maps user data to HTML input fields and selection boxes for programmatic submission and maintains authenticated states by managing cookies and user-agent headers acr

DrissionPage is a Python library designed for web automation, data scraping, and testing. It functions as a browser automation framework that communicates directly with the browser engine via the Chrome DevTools Protocol, allowing for precise control over browser instances and page states. The library distinguishes itself by providing a unified interface that combines full browser automation with raw HTTP request capabilities. This hybrid approach allows users to switch between lightweight network requests and heavy browser-based interactions within a single workflow. By wrapping asynchronous