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AJ Kerrigan

AJ tries to understand how things work (code, books, music, people...) and share things along the way. Come say hi on Twitter, DEV or GitHub. Tell him something interesting you learned, and he'll probably be as excited as you are!

Tools

Freezegun – Real Joy for Fake Dates in Python

By AJ Kerrigan on 14 August 2020

Freezegun is a library for mocking Python datetimes. It does one thing, does it well, and lets you get on with your life.

Testing

Assertions About Exceptions With pytest.raises()

By AJ Kerrigan on 18 May 2020

It’s useful to test for exceptions exceptions in your code. A handy feature of pytest makes that fun and flexible!

Tips

There’s no Wrong Way… to Eat a Bite of Py

By AJ Kerrigan on 27 November 2019

There are many ways to tackle a Bites of Py exercise, try them all!

Concepts

Under the Hood: Python Comparison Breakdown

By AJ Kerrigan on 27 October 2019

Use Python’s “dis” module to see how Python evaluates two similar comparison operations.

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