Web Scraping with Python: Collecting More Data from the Modern Web, 2/e (Paperback)

Ryan Mitchell

Web Scraping with Python: Collecting More Data from the Modern Web, 2/e (Paperback)

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商品描述

If programming is magic then web scraping is surely a form of wizardry. By writing a simple automated program, you can query web servers, request data, and parse it to extract the information you need. The expanded edition of this practical book not only introduces you web scraping, but also serves as a comprehensive guide to scraping almost every type of data from the modern web.

Part I focuses on web scraping mechanics: using Python to request information from a web server, performing basic handling of the server’s response, and interacting with sites in an automated fashion. Part II explores a variety of more specific tools and applications to fit any web scraping scenario you’re likely to encounter.

  • Parse complicated HTML pages
  • Develop crawlers with the Scrapy framework
  • Learn methods to store data you scrape
  • Read and extract data from documents
  • Clean and normalize badly formatted data
  • Read and write natural languages
  • Crawl through forms and logins
  • Scrape JavaScript and crawl through APIs
  • Use and write image-to-text software
  • Avoid scraping traps and bot blockers
  • Use scrapers to test your website

商品描述(中文翻譯)

如果程式設計是魔法，那麼網頁爬蟲無疑是一種巫術。通過編寫一個簡單的自動化程式，您可以向網頁伺服器發出請求，獲取數據並解析它以提取所需的信息。這本實用書的擴展版不僅介紹了網頁爬蟲，還作為一本全面指南，介紹了從現代網頁中爬取幾乎所有類型數據的方法。

第一部分介紹了網頁爬蟲的基本原理：使用Python向網頁伺服器請求信息，對伺服器的回應進行基本處理，以及以自動化方式與網站進行交互。第二部分探討了各種更具體的工具和應用，以滿足您可能遇到的任何網頁爬蟲場景。

- 解析複雜的HTML頁面
- 使用Scrapy框架開發爬蟲程式
- 學習儲存爬取數據的方法
- 讀取並從文件中提取數據
- 清理和規範格式錯誤的數據
- 讀寫自然語言
- 通過表單和登錄進行爬蟲
- 爬取JavaScript並通過API進行爬蟲
- 使用和編寫圖片轉文字軟體
- 避免爬蟲陷阱和機器人阻擋
- 使用爬蟲測試您的網站

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