{"id":173065,"date":"2023-11-06T17:03:28","date_gmt":"2023-11-06T16:03:28","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=173065"},"modified":"2023-11-06T17:11:08","modified_gmt":"2023-11-06T16:11:08","slug":"web-scraping-unveiled-your-comprehensive-guide-to-data-extraction","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/web-scraping-unveiled-your-comprehensive-guide-to-data-extraction","title":{"rendered":"Web Scraping Unveiled: Your Comprehensive Guide to Data Extraction"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"173065\" class=\"elementor elementor-173065\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a80f7f1 e-flex e-con-boxed e-con\" data-id=\"7a80f7f1\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5fd106a2 elementor-widget elementor-widget-heading\" data-id=\"5fd106a2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\"><p>Web scraping is an automatic method of obtaining large amounts of data from websites. In this article, you'll learn what web scraping is, what it can be used for and the tools needed to use it.&nbsp;We'll also question its legitimacy, and finally we'll present the various ways of applying this technology to a concrete example under&nbsp;Python.<\/p><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-22c2c4af e-flex e-con-boxed e-con\" data-id=\"22c2c4af\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-98fab44 elementor-widget elementor-widget-heading\" data-id=\"98fab44\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is web scraping?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67cd74a2 elementor-widget elementor-widget-text-editor\" data-id=\"67cd74a2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong>Web scraping<\/strong> is a technology that enables the automated retrieval of data from various web pages and their transformation into other, <strong>more usable formats (excel, csv, etc.).<\/strong><\/p><p>Once the data has been extracted and stored, it can be used in a variety of ways. For example, to find contact information or compare prices on different websites.<\/p><p>Web scraping can benefit people in all sectors, especially data scientists, data analysts,<a href=\"https:\/\/datascientest.com\/en\/business-analyst-definition-missions-training-salary\"> business analysts and marketers.<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-20077aa2 e-flex e-con-boxed e-con\" data-id=\"20077aa2\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4708be1a elementor-widget elementor-widget-heading\" data-id=\"4708be1a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Introduction to Web Scraping<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3205aacb elementor-widget elementor-widget-text-editor\" data-id=\"3205aacb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In today&#8217;s world, <strong>data has become the most valuable asset.<\/strong> Using the right data enables companies and scientists to make better decisions, such as making estimates, mathematical predictions and sentiment analyses.<\/p><p>Companies are willing to pay any price to get their hands on data relating to their activities.<\/p><p>While the Internet is an enormous library of data, the question remains of where to find useful data. With the sheer volume of data involved, it&#8217;s simply impossible to sift through and manually find the &#8220;best&#8221; information. That&#8217;s where web scraping comes in: <strong>all this data can be obtained automatically.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52a48160 elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"52a48160\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=3PZqW8h2tJ0&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43515420 elementor-widget elementor-widget-text-editor\" data-id=\"43515420\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>There are other methods of data extraction, such as <a href=\"https:\/\/datascientest.com\/en\/api-integration-in-python-databases-made-easy\">APIs (Application Programming Interfaces).<\/a> However, although they can provide structured data, they are not always available for every website.<\/p><p>Web scraping makes it possible to circumvent this limitation by extracting data from any web page. Regardless of whether an API is present or not.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7acc0169 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"7acc0169\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Learn more about Web Scraping<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-17c5d226 e-flex e-con-boxed e-con\" data-id=\"17c5d226\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10306842 elementor-widget elementor-widget-heading\" data-id=\"10306842\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are the applications of web scraping?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fa09338 elementor-widget elementor-widget-text-editor\" data-id=\"5fa09338\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Web scraping<\/strong> can be used for a variety of purposes. While some use it to guide their business decisions, others use it for educational purposes, and still others for research, as in the case of a government institution. Let&#8217;s take a look at some of the common uses of web scraping<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-208f5e19 elementor-widget elementor-widget-heading\" data-id=\"208f5e19\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Market research<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d623ead elementor-widget elementor-widget-text-editor\" data-id=\"1d623ead\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Web scraping<\/strong> can be used by companies for market research. The data obtained through web scraping can be useful to companies for analyzing consumer trends and understanding where the company needs to go in the future.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3361ba98 elementor-widget elementor-widget-heading\" data-id=\"3361ba98\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Sentiment analysis<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e42b006 elementor-widget elementor-widget-image\" data-id=\"7e42b006\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1006\" height=\"874\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/11\/Webscraping_sentiments.png\" class=\"attachment-full size-full wp-image-173068\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/11\/Webscraping_sentiments.png 1006w, https:\/\/datascientest.com\/en\/files\/2023\/11\/Webscraping_sentiments-300x261.png 300w, https:\/\/datascientest.com\/en\/files\/2023\/11\/Webscraping_sentiments-768x667.png 768w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62986b9b elementor-widget elementor-widget-text-editor\" data-id=\"62986b9b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Sentiment analysis<\/strong> is used when companies want to understand the general sentiment of their consumers towards their products.<\/p><p>Companies use web scraping to<strong> collect data on social networks<\/strong> and find out the general feeling about their products.<\/p><p>This helps them <strong>create products that people want, and stay ahead of the competition<\/strong>. Political groups can use web scraping of Facebook groups and Twitter discussions to detect whether a particular group of people is for or against them.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cf91082 elementor-widget elementor-widget-heading\" data-id=\"5cf91082\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Price comparison and monitoring<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2adfc0 elementor-widget elementor-widget-text-editor\" data-id=\"2adfc0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>One of the main uses of web scraping is to monitor product prices. This may involve comparing product prices on a merchant site like Amazon to find a competitive price.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c7843fc elementor-widget elementor-widget-heading\" data-id=\"2c7843fc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Email marketing<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7164138e elementor-widget elementor-widget-text-editor\" data-id=\"7164138e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>One of the <strong>main uses of web scraping<\/strong> is to monitor product prices. This may involve comparing product prices on a merchant site like Amazon to find a competitive price.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-540246de elementor-widget elementor-widget-heading\" data-id=\"540246de\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Competitive monitoring<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e620a5b elementor-widget elementor-widget-text-editor\" data-id=\"1e620a5b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Web scraping can be an excellent tool for monitoring competitors. By tracking prices, promotional offers, customer reviews and other strategic information about a rival, companies can adjust their own strategies to stay competitive.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79e7bca5 elementor-widget elementor-widget-heading\" data-id=\"79e7bca5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Dataset creation<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3018f873 elementor-widget elementor-widget-text-editor\" data-id=\"3018f873\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/datascientest.com\/en\/how-to-become-a-data-scientist-the-the-best-kept-secrets\">Data Scientists<\/a> use Web Scraping to create datasets for Machine Learning or statistical analysis. By extracting data from various sources, it is possible to feed machine learning models and perform in-depth analyses.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-974baf4 elementor-widget elementor-widget-heading\" data-id=\"974baf4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Automated information gathering <\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20338b22 elementor-widget elementor-widget-text-editor\" data-id=\"20338b22\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">When it comes to collecting data from multiple sources, web scraping comes in handy, as it enables automation. This is particularly relevant in the field of <a href=\"https:\/\/datascientest.com\/en\/the-evolution-of-data-insights-data-science-vs-business-intelligence-in-the-big-data-era\">business intelligence<\/a>, where data from a wide variety of horizons needs to be aggregated quickly and efficiently.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2ef1b033 e-flex e-con-boxed e-con\" data-id=\"2ef1b033\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b257960 elementor-widget elementor-widget-heading\" data-id=\"3b257960\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Understanding the technical basics of Web Scraping<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3eeeffa7 elementor-widget elementor-widget-text-editor\" data-id=\"3eeeffa7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The web scraping process relies on three key elements. Firstly, the<strong> HTTP\/HTTPS protocol<\/strong> used to transfer data between a web server and a browser.<\/p><p>Each time a URL is entered into a web browser, the latter sends an <strong>HTTP request<\/strong> to the server to obtain the corresponding web page.<\/p><p>There are two types of request: GET and POST. GET requests are used to request data from the server, while POST requests are used to send data to the server.<\/p><p>These requests are used by web browsers to obtain and display web pages, but web scraping uses them to extract data.<\/p><p>Finally, HTML tags are the keystone of web scraping. They delimit the various parts of a page, such as titles, paragraphs, links and images. By targeting the appropriate tags, scraping programs can extract the data they&#8217;re looking for.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e1f44e3 elementor-widget elementor-widget-image\" data-id=\"2e1f44e3\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"900\" height=\"500\" src=\"https:\/\/datascientest.com\/en\/files\/2023\/11\/web-scraping4.jpg\" class=\"attachment-full size-full wp-image-173069\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2023\/11\/web-scraping4.jpg 900w, https:\/\/datascientest.com\/en\/files\/2023\/11\/web-scraping4-300x167.jpg 300w, https:\/\/datascientest.com\/en\/files\/2023\/11\/web-scraping4-768x427.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e4aa37d elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"3e4aa37d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Mastering Web Scraping techniques<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7df7cbbb e-flex e-con-boxed e-con\" data-id=\"7df7cbbb\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5725374f elementor-widget elementor-widget-heading\" data-id=\"5725374f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Popular web scraping tools<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-634f979 elementor-widget elementor-widget-text-editor\" data-id=\"634f979\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><a href=\"https:\/\/datascientest.com\/en\/python-programming-for-beginners-episode-2\">Python is the most popular language for web scraping<\/a>, as it can easily handle most operations. It also has a variety of libraries that have been created specifically for Web scraping. Beautiful Soup is a Python library ideally suited to Web scraping. It can be used to extract data from the HTML of a website for use and analysis. In our Data Scientist training course, we&#8217;ll teach you how to scrape data using this library. Other libraries available include Scrapy, SQLAlchemy, Selenium and Requests.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3b9bf05c e-flex e-con-boxed e-con\" data-id=\"3b9bf05c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49cb3f4d elementor-widget elementor-widget-heading\" data-id=\"49cb3f4d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Practical application<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7088d952 elementor-widget elementor-widget-text-editor\" data-id=\"7088d952\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Want to get hands-on? Take a look at the video at the beginning of this article, for a <strong>simple application requiring only basic Python skills.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-409f4fb5 e-flex e-con-boxed e-con\" data-id=\"409f4fb5\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-163b3114 elementor-widget elementor-widget-heading\" data-id=\"163b3114\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Web scraping challenges and solutions<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bc57382 elementor-widget elementor-widget-text-editor\" data-id=\"4bc57382\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>One of the main challenges of web scraping is the frequent evolution of websites. This can lead to changes in page structure and <strong>HTML tags, and disrupt existing scraping code.<\/strong><\/p><p>To avoid this inconvenience, it&#8217;s best to regularly monitor sites for any structural changes and update the code accordingly.<\/p><p>Another problem is that sites may return unexpected errors or responses, interrupting the process. Handling such bad weather needs to be built into the scraping code.<\/p><p>Many websites implement <strong>security measures such as CAPTCHA<\/strong> to prevent automated access. This can also be an obstacle to scraping.<\/p><p>However, respecting access rules and using appropriate request headers, while avoiding excesses, generally avoids triggering these protection mechanisms.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-12b118ed e-flex e-con-boxed e-con\" data-id=\"12b118ed\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56f2e8bb elementor-widget elementor-widget-heading\" data-id=\"56f2e8bb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Is web scraping legal?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ee4f168 elementor-widget elementor-widget-text-editor\" data-id=\"5ee4f168\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>While most websites disapprove of it,<\/strong> it is nonetheless legal. Nevertheless, there are numerous court cases in which websites have taken legal action against companies and individuals for scraping their content.<\/p><p>Among them is &#8220;LinkedIn vs HiQ&#8221;, one of the biggest legal disputes concerning web scraping.<\/p><p><strong>HiQ<\/strong> is a <a href=\"https:\/\/datascientest.com\/en\/data-analyst-salary-average-salary-revealed\">data analytics company<\/a> that came into legal conflict with LinkedIn when the latter sent an official letter to HiQ asking it to stop scraping the site. But LinkedIn was counter-attacked by HiQ, which stated that LinkedIn&#8217;s data is accessible to anyone who consults it, and that there is nothing fraudulent about<strong> deleting publicly accessible data.<\/strong><\/p><p>However, the final decision was not glorious for LinkedIn, as the court forced the company to allow <strong>HiQ access to its servers.<\/strong><\/p><p>Not only did the court legalize this practice, it also prohibited competitors from automatically removing information from your site if it is public.<\/p><p>The court confirmed the logic that web robot scraper input is legally no different from browser input. In both cases, the user collects data and does something with it.<\/p><p><strong>Web scraping isn&#8217;t illegal per se,<\/strong> but you do need to be ethical when doing it. If done properly, web scraping can help us make the best use of the web, the best example of which is the Google search engine.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-292603ab elementor-widget elementor-widget-text-editor\" data-id=\"292603ab\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Did you like this article? Would you like to go further? In our training course, we explore web scraping in greater detail, in particular through the Beautiful Soup library. Book an appointment with one of our team members to find out more.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4beb374d elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"4beb374d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Discover our courses<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Web scraping is an automatic method of obtaining large amounts of data from websites. In this article, you&#8217;ll learn what web scraping is, what it can be used for and the tools needed to use it.&nbsp;We&#8217;ll also question its legitimacy, and finally we&#8217;ll present the various ways of applying this technology to a concrete example [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":173066,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2423],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Web Scraping Unveiled: Your Comprehensive Guide to Data Extraction<\/title>\n<meta name=\"description\" content=\"Delve into the world of web scraping and gain the knowledge you need. 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