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笛声电子书Python爬虫技术升级必备

2020-09-16 01:48:04来源:励志吧0次阅读

电子书 | Python 爬虫技术升级必备

爬虫是学 Python 的同学必备的一个技能,掌握之后可能帮助自己实现很多之前不敢想象的需求。

今天给大家推荐一本专门讲爬虫的电子书,是国外 Packt 出版社的1本免费电子书,名字叫《Python Web Scraping Cookbook》

既然名字里带了 Cookbook,那就意味着这是一本实操性非常强的书。书的副标题,其实就很明确地告知了我们,书中包括了超过 90 多个经常使用的爬虫“菜谱”也就是通用技巧了。

下面是本书的简介:

Untangle your web scraping complexities and access web data with ease using Python s

Key Features

Hands-on recipes to advance your web scraping skills to expert level

Address complex and challenging web scraping tasks using Python

Understand the web page structure and collect meaningful data from the website with easeBook Deion

Python Web Scraping Cookbook is a solution-focused book that will teach you techniques to develop high-performance scrapers and deal with crawlers, sitemaps, forms automation, Ajax-based sites, and caches.Youll explore a number of real-world scenarios where every part of the development/product life cycle will be fully covered. You will not only develop the skills to design and develop reliable data flows, but also deploy your codebase to an AWS. If you are involved in software engineering, product development, or data mining (or are interested in building data-driven products) you will find this book useful as each recipe has a clear purpose and objective.

Right from extracting data from the websites to writing a sophisticated web crawler, the books independent recipes will be a godsend on the job. This book covers Python libraries, requests, and BeautifulSoup. You will learn about crawling, web spidering, working with AJAX websites, and paginated items. You will also learn to tackle problems such as 403 errors, working with proxy, scraping images, and LXML.

By the end of this book, you will be able to scrape websites more efficiently and deploy and operate your scraper in the cloud.

What you will learn

Use a wide variety of tools to scrape any website and data-including BeautifulSoup, Scrapy, Selenium, and many more

Master expression languages such as XPath, CSS, and regular expressions to extract web data

Deal with scraping traps such as hidden form fields, throttling, pagination, and different status codes

Build robust scraping pipelines with SQS and RabbitMQ

Scrape assets such as images media and know what to do when Scraper fails to run

Explore ETL techniques of building a customized crawler, parser, and convert structured and unstructured data from websites

Deploy and run your scraper as a service in AWS Elastic Container ServiceWho This Book Is For

Python Web Scraping Cookbook is ideal for Python programmers, web s, security professionals or someone who wants to perform web analytics would find this book relevant and useful. Familiarity with Python and basic understanding of web scraping would be useful to take full advantage of this book.

Table of Contents

Getting Started with Scraping

Data Acquisition and Extraction

Processing Data

Working with Images, Audio and Other Assets

Scraping - Code of Conduct

Scraping Challenges and Solutions

Text Wrangling and Analysis

Searching, Mining and Visualizing Data

Working with an API and Providing a Data API

Creating Scraper Microservices with Docker

本文相干词条概念解析:

爬虫

爬虫,脊椎动物,或称爬行类、爬虫类,属于四足总纲的羊膜动物,是对蜥形纲及合弓纲除鸟类及哺乳类以外所有物种的通称,包括龟、蛇、蜥蜴、鳄从全国纺织服装出口形势分析及已绝灭的恐龙与似哺乳爬行动物等等。

电子书

电子书是指将文字、图片、声音、影像等讯息内容数字化的出版物以及植入或下载数字化文字、图片、声音、影象等讯息内容的集存储介质和显示终端于一体的手持阅读器,代表人们所浏览的数字化出版物,从而区分于以纸张为载体的传统出版物,通过数码方式记录在以光、电、磁为介质的设备中,必须借助于特定的装备来读取、复制、传输。电子书的主要格式有PDF、EXE、CHM、UMD、PDG、JAR、PDB、TXT、BRM等。电子书可支持于其浏览格式的手机终端,常见的手机电子书格式为UMD、JAR、TXT这三种。

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