Reading Data from XML

XML or Extensible Markup Language is a web markup language that's similar to HTML but with significant flexibility (on the part of the user) built in, such as the ability to define your own tags. It was one of the most hyped technologies in the 1990s and early 2000s. It is a meta-language, that is, a language that allows us to define other languages using its mechanics, such as RSS and MathML (a mathematical markup language widely used for web publication and the display of math-heavy technical information). XML is also heavily used in regular data exchanges over the web, and as a data wrangling professional, you should have enough familiarity with its basic features to tap into the data flow pipeline whenever you need to extract data for your project.

Exercise 7.07: Creating an XML File and Reading XML Element Objects

In this exercise, we'll create some random data and store it in XML format. We'll then read from the XML file and examine...