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Mozilla Internship: Translate Java to Python, Pt. 2

Continued from Part 1

While I began writing my package as a direct, one-to-one translation of the Java package, my package turned out to look very different.

Java and Python are, after all, very different languages. I found some methods to be unnecessary in python, and chose to not use the same design pattern as axe-selenium-java.

The Java package, written by Deque Labs, uses the Builder design pattern.

I wrote the methods used by the Builder class to be methods of the Axe class instead.

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Mozilla Internship: Diving into Test Automation with Python

pytest python pytest-html

Test Automation with Python

The first week of my internship was spent primarily setting up my dev environment on the laptop I received.

I had also never used a Mac before, so there were some basics to learn as well.

Although, since MacOS is Unix-based now, all of the important things were pretty much the same.

(I’m worthless with a Windows command line)

Once I had everything configured, I started fiddling with python and pytest.

I’ve done some development in python, like a scrabble-esque game, but I’d never written tests in python before.

axe-core

In order to automate regression testing for accessibility, we need an API of some sort.

I did some research on the available web accessibility APIs before settling on the axe-core API.

The axe-core API was created by Deque, a company that specializes in accessibility.

Deque offers assessment services, certifications, and more.

axe-core is written in JavaScript and distributed as an an npm package.

Eventually, I will create a more seamless integration of axe-core into python, by writing a python library.

DequeLabs did this with Java in their tool axe-selenium-java.

To get started, though, I will be using Selenium’s execute_script() function to handle the JavaScript directly.

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Scrape Stack Overflow Jobs Using Scrapy | Python Tutorial

scrape stack overflow jobs
1. What the Hell is Scraping, Anyway?
2. Install Scrapy
3. Write Your First Script
4. Put It To Work!
For this tutorial, we’re going to write a Web Spider to scrape Stack Overflow Jobs.

1. What the Hell is Scraping, Anyway?

Web scraping (web harvesting or web data extraction) is data scraping used for extracting data from websites. Web scraping software may access the World Wide Web directly using the Hypertext Transfer Protocol, or through a web browser.

While web scraping can be done manually by a software user, the term typically refers to automated processes implemented using a bot or web crawler.[1]

What’s a “Web Spider”?

A Web crawler, sometimes called a spider, is an Internet bot which systematically browses the World Wide Web, typically for the purpose of Web indexing (web spidering).[2]

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Python Virtual Environments

python pip python virtual environments kimberlythegeek

Why Should I Use Python Virtual Environments?

It is always recommended to use python virtual environments for all of your projects. But why?

As The Hitchhiker’s Guide to Python says:

A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them.

It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keeps your global site-packages directory clean and manageable.

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