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Hands-On Website Scraping with Python Crawling data scraping with Beautiful Soup, Selenium and more - Ona Prado, Leire Verdugo 2024 EPUB Independently published BOOKS
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Hands-On Website Scraping with Python Crawling data scraping with Beautiful Soup, Selenium and more
Author: Ona Prado, Leire Verdugo
Year: 2024
Pages: 291
Format: EPUB
File size: 10.1 MB
Language: ENG



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We will also explore the use of Selenium which is a browser automation tool to scrape data from websites that use JavaScript to load their content dynamically. You can use these libraries to extract data from websites and save it locally on your machine or store it in a database for further analysis. Web scraping is a technique used to extract data from websites that would otherwise be difficult to access manually. It involves writing code that mimics the actions of a human user browsing the website and retrieving the desired data. The process of web scraping has become increasingly popular due to its ability to collect large amounts of data quickly and accurately. This book will cover the following topics: • Introduction to web scraping and why it is important • Installing and setting up the necessary tools for web scraping • Understanding HTML structure and CSS selectors • Using requests library to send HTTP requests and retrieve HTML pages • Using Beautiful Soup to parse HTML pages and extract data • Using Selenium to automate browser interactions • Handling common web scraping challenges such as anti-scraping measures and proxies • Storing scraped data in databases or files for future analysis • Ethical considerations when using web scraping techniques.
Мы также рассмотрим использование Selenium, который является инструментом автоматизации браузера для скрапинга данных с веб-сайтов, которые используют JavaScript для динамической загрузки своего контента. Эти библиотеки можно использовать для извлечения данных с веб-сайтов и сохранения их локально на компьютере или сохранения в базе данных для дальнейшего анализа. Веб-скрапинг - это метод, используемый для извлечения данных с веб-сайтов, к которым в противном случае было бы трудно получить доступ вручную. Он включает в себя написание кода, имитирующего действия пользователя-человека, просматривающего веб-сайт и извлекающего нужные данные. Процесс веб-скрапинга становится все более популярным благодаря его способности быстро и точно собирать большие объемы данных. В этой книге будут рассмотрены следующие темы: • Введение в веб-скрапинг и почему это важно • Установка и настройка необходимых инструментов для веб-скрапинга • Понимание структуры HTML и селекторов CSS • Использование библиотеки запросов для отправки HTTP-запросов и извлечения HTML-страниц • Использование Beautiful Soup для синтаксического анализа HTML-страниц и извлечения данных • Использование Selenium для автоматизации взаимодействия с браузером • Обработка обычного веб-скрапинга такие проблемы, как меры по борьбе со скрапингом и прокси-серверы • Хранение скрапированных данных в базах данных или файлах для будущего анализа • Этические соображения при использовании методов веб-скрапинга
Nous allons également examiner l'utilisation de Selenium, qui est un outil d'automatisation de navigateur pour scraper les données des sites Web qui utilisent JavaScript pour télécharger dynamiquement leur contenu. Vous pouvez utiliser ces bibliothèques pour extraire les données des sites Web et les enregistrer localement sur votre ordinateur ou les enregistrer dans une base de données pour une analyse plus poussée. scrapage Web est une méthode utilisée pour extraire des données à partir de sites Web auxquels il serait autrement difficile d'accéder manuellement. Il s'agit d'écrire un code qui simule les actions d'un utilisateur humain qui consulte un site Web et extrait les données souhaitées. processus de scrapage Web devient de plus en plus populaire grâce à sa capacité à collecter rapidement et avec précision de grandes quantités de données. Ce livre abordera les sujets suivants : • Introduction au scraping Web et pourquoi c'est important • Installation et configuration des outils de scrapage Web nécessaires • Compréhension de la structure HTML et des sélecteurs CSS • Utilisation de la bibliothèque de requêtes pour envoyer des requêtes HTTP et extraire des pages HTML • Utilisation de Beautiful Soup pour l'analyse syntaxique des pages Html et l'extraction des données • pour automatiser l'interaction avec le navigateur • Traitement du scrapage Web ordinaire de tels problèmes, Mesures anti-scraping et serveurs proxy • Stockage de données scrapées dans des bases de données ou des fichiers pour des analyses futures • Considérations éthiques dans l'utilisation des techniques de scrapage Web
También vamos a considerar el uso de Selenium, que es una herramienta de automatización del navegador para scraping de datos de sitios web que utilizan JavaScript para cargar dinámicamente su contenido. Puede utilizar estas bibliotecas para extraer datos de sitios Web y guardarlos localmente en el equipo o guardarlos en una base de datos para analizarlos más a fondo. scraping web es un método utilizado para extraer datos de sitios web a los que de otro modo sería difícil acceder manualmente. Incluye escribir un código que simula las acciones de un usuario humano, navegar por el sitio web y recuperar los datos deseados. proceso de scraping web se está volviendo cada vez más popular debido a su capacidad para recopilar grandes cantidades de datos de forma rápida y precisa. Este libro abordará los siguientes temas: • Introducción al scraping web y por qué es importante • Instalar y configurar las herramientas necesarias para el scraping web • Comprender la estructura de los selectores HTML y CSS • Usar la biblioteca de consultas para enviar solicitudes HTTP y extraer páginas HTML • Usar Beed autiful Soup para el análisis sintáctico de páginas HTML y la extracción de datos • uso de Selenium para automatizar la interacción con el navegador • manejo de los problemas comunes de scraping web, medidas contra el scraping y servidores proxy • Almacenamiento de datos scraped en bases de datos o archivos para análisis futuros • Consideraciones éticas en el uso de técnicas de scraping web
Wir werden auch die Verwendung von Selenium betrachten, einem Browser-Automatisierungstool zum Kratzen von Daten von Websites, die JavaScript verwenden, um ihre Inhalte dynamisch herunterzuladen. Mithilfe dieser Bibliotheken können e Daten von Websites abrufen und lokal auf Ihrem Computer speichern oder zur weiteren Analyse in einer Datenbank speichern. Web-Scraping ist eine Technik, die verwendet wird, um Daten von Websites zu extrahieren, die sonst nur schwer manuell zugänglich wären. Es beinhaltet das Schreiben von Code, der die Aktionen eines menschlichen Benutzers simuliert, der eine Website durchsucht und die gewünschten Daten abruft. Das Web-Scraping-Verfahren wird aufgrund seiner Fähigkeit, große Datenmengen schnell und präzise zu erfassen, immer beliebter. In diesem Buch werden die folgenden Themen behandelt: • Einführung in das Web-Scraping und warum es wichtig ist • Installation und Konfiguration der erforderlichen Tools für das Web-Scraping • Verständnis der HTML-Struktur und der CSS-Selektoren • Verwendung der Anforderungsbibliothek zum Senden von HTTP-Anforderungen und zum Extrahieren von HTML-Seiten • Verwendung von Beautiful Soup zum Parsen von HTML-Seiten und zum Extrahieren von Daten • Verwendung von Selenium zur Automatisierung der Interaktion mit Browser • Umgang mit herkömmlichen Web-Scraping solche Probleme, als Anti-Scraping-Maßnahmen und Proxy-Server • Speicherung von Scraping-Daten in Datenbanken oder Dateien für zukünftige Analysen • Ethische Überlegungen beim Einsatz von Web-Scraping-Methoden
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Ayrıca, içeriğini dinamik olarak indirmek için JavaScript kullanan web sitelerinden veri kazımak için bir tarayıcı otomasyon aracı olan Selenium'u kullanmaya da bakacağız. Web sitelerinden veri almak ve yerel olarak bilgisayarınızda depolamak için bu kitaplıkları kullanabilir veya daha fazla analiz için bir veritabanında saklayabilirsiniz. Web kazıma, aksi takdirde manuel olarak erişilmesi zor olan web sitelerinden veri çıkarmak için kullanılan bir yöntemdir. Bir web sitesine göz atan ve doğru verileri alan bir insan kullanıcının eylemlerini taklit eden kod yazmayı içerir. Web kazıma işlemi, büyük miktarda veriyi hızlı ve doğru bir şekilde toplama kabiliyeti nedeniyle giderek daha popüler hale geliyor. Bu kitap aşağıdaki konuları kapsayacaktır: • Web kazıma işlemine giriş ve neden önemli olduğu • Web kazıma için gerekli araçları kurma ve yapılandırma • HTML ve CSS seçicilerinin yapısını anlama • HTTP isteklerini göndermek ve HTML sayfalarını çıkarmak için bir sorgu kitaplığı kullanma • HTML sayfalarını ayrıştırmak ve verileri ayıklamak için Güzel Çorba kullanma • Tarayıcı ile etkileşimleri otomatikleştirmek için Selenium kullanma • Düzenli işleme Web bu tür sorunları kazıma, Kazıma önleyici önlemler ve proxy'ler olarak • Kazınmış verilerin gelecekteki analizler için veritabanlarında veya dosyalarda saklanması • Web kazıma yöntemlerini kullanırken etik hususlar
سننظر أيضًا في استخدام Selenium، وهو أداة أتمتة متصفح لكشط البيانات من مواقع الويب التي تستخدم JavaScript لتنزيل محتواها ديناميكيًا. يمكنك استخدام هذه المكتبات لاسترداد البيانات من مواقع الويب وتخزينها محليًا على جهاز الكمبيوتر الخاص بك، أو تخزينها في قاعدة بيانات لمزيد من التحليل. كشط الويب هي طريقة تستخدم لاستخراج البيانات من مواقع الويب التي قد يكون من الصعب الوصول إليها يدويًا. يتضمن كتابة رمز يحاكي تصرفات مستخدم بشري يتصفح موقعًا إلكترونيًا ويستعيد البيانات الصحيحة. أصبحت عملية كشط الويب شائعة بشكل متزايد بسبب قدرتها على جمع كميات كبيرة من البيانات بسرعة ودقة. سيغطي هذا الكتاب الموضوعات التالية: • مقدمة لكشط الويب ولماذا هو مهم • تثبيت وتكوين الأدوات اللازمة لكشط الويب • فهم هيكل محددات HTML و CSS • استخدام مكتبة استعلام لإرسال طلبات HTTP واستخراج صفحات HTML • استخدام Beautiful Soul p لتحليل صفحات HTML واستخراج البيانات • استخدام السيلينيوم لأتمتة التفاعلات مع المتصفح • التعامل مع كشط الويب المنتظم لمثل هذه المشكلات، كمقاييس ووكلاء لمكافحة الكشط • تخزين البيانات المكشوفة في قواعد البيانات أو الملفات للتحليل المستقبلي • الاعتبارات الأخلاقية عند استخدام طرق كشط الويب

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