Learn the structure of HTML. We begin by explaining why web scraping can be a valuable addition to your data science toolbox and then delving into some basics of HTML. We end the chapter by giving a brief introduction on XPath notation, which is used to navigate the elements within HTML code.

Visión general del web scraping

¡El web scraping no es ninguna tontería!

HyperText Markup Language

Navegación detallada por el árbol HTML

De árbol a HTML

Atributos

Con clase

Búsqueda de href

Curso intensivo de XPath

¿Dónde estoy?

Ha llegado la hora de P

Span con clase

Introduction to HTML

Leverage XPath syntax to explore scrapy selectors. Both of these concepts will move you towards being able to scrape an HTML document.

XPathology

Counting Elements in the Wild

Body Appendages

Choose DataCamp!

Off the Beaten XPath

Where it's @

Check your Class

Hyper(link) Active

Secret Links

Selector Objects

XPath Chaining

Divvy Up This Exercise

The Source of the Source

Course Class by Inspection

Requesting a Selector

XPaths and Selectors

Learn CSS Locator syntax and begin playing with the idea of chaining together CSS Locators with XPath. We also introduce Response objects, which behave like Selectors but give us extra tools to mobilize our scraping efforts across multiple websites. 

From XPath to CSS

The (X)Path to CSS Locators

Get an "a" in this Course

The CSS Wildcard

CSS Attributes and Text Selection

You've been `href`ed

Top Level Text

All Level Text

Respond Please!

Reveal By Response

Responding with Selectors

Selecting from a Selection

Survey

Titular

Scraping with Children

CSS Locators, Chaining, and Responses

Learn to create web crawlers with scrapy. These scrapy spiders will crawl the web through multiple pages, following links to scrape each of those pages automatically according to the procedures we've learned in the previous chapters.

Your First Spider

Inheriting the Spider

Hurl the URLs

Start Requests

Self Referencing is Classy

Starting with Start Requests

Parse and Crawl

Pen Names

Crawler Time

Capstone

Time to Run

DataCamp Descriptions

Capstone Crawler

The Finale

Spiders

DataCamp webpage HTML

Saber construir herramientas capaces de recuperar y analizar información almacenada en Internet ha sido y sigue siendo un proceso valioso en muchos aspectos de la ciencia de datos. En este curso, aprenderás a navegar y analizar código html, además de a construir herramientas para rastrear sitios web automáticamente. Aunque nuestro scraping se realizará utilizando la versátil biblioteca Scrapy de Python, muchas de las técnicas que aprenderás en este curso pueden aplicarse también a otras bibliotecas populares de Python, como BeautifulSoup o Selenium. Al finalizar este curso, tendrás un sólido modelo mental de lo que es la estructura html, podrás construir herramientas para analizar código html y acceder a la información deseada, y crearás una sencilla araña scrapy para rastrear la web a escala.

Intermediate Python

Aprende a obtener y analizar información de internet con la biblioteca Python scrapy.

Web scraping en Python

Aprende a recuperar y a analizar información de Internet utilizando la biblioteca Scrapy de Python.

Desarrollador Python

Con clase

Web scraping en Python

ejercicio interactivo práctico