Test & Code

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159: Python, pandas, and Twitter Analytics - Matt Harrison Jul 02, 2021

Show notes

When learning data science and machine learning techniques, you need to work on a data set.
Matt Harrison had a great idea: Why not use your own Twitter analytics data?
So, he did that with his own data, and shares what he learned in this episode, including some of his secrets to gaining followers.

In this episode we talk about:

Looking at your own Twitter analytics data.
Using Python, pandas, Jupyter for data cleaning and exploratory analysis
Data visualization
Machine learning, principal component analysis, clustering
Model drift and re-running analysis
What kind of tweets perform well
And much more

Links:

Applied Pandas: Twitter Analytics — the course

158: TDD in Swift - Gio Jun 18, 2021

Show notes

Iterative processes that include writing test code and production code together, such as TDD, help make coding fun.

All of us that care about developing quality code with the help of testing can learn from each other, regardless of programming language.

Today we step outside our normal Python comfort zone and talk with Gio about TDD in Swift.

Gio Lodi, author of TDD in Swift, joins the show to discuss Test Driven Development, software workflows, bottom up vs top down, rapid feedback, developer vs customer facing tests, and more.

Full Transcript

Special Guest: Gio Lodi.

Sponsored By:

Datadog: Modern end-to-end monitoring & security. See inside any stack, any app, at any scale, anywhere. Get started with a free trial at testandcode.com/datadog and Datadog will send you a free t-shirt.

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If you like Test & Code, I think you'll also like Python People

Python People is a new podcast about getting to know the people who make Python and our community awesome.
Be sure to check out pythonpeople.fm.

158: TDD in Swift - Gio Lodi Jun 18, 2021

Show notes

Iterative processes that include writing test code and production code together, such as TDD, help make coding fun.

All of us that care about developing quality code with the help of testing can learn from each other, regardless of programming language.

Today we step outside our normal Python comfort zone and talk with Gio about TDD in Swift.

Gio Lodi, author of TDD in Swift, joins the show to discuss Test Driven Development, software workflows, bottom up vs top down, rapid feedback, developer vs customer facing tests, and more.

Links:

157: pre-commit - Anthony Sottile Jun 11, 2021

Show notes

pre-commit started as a framework for running linters and code formatters during git actions via git hooks. It's grown and expanded and now supports an extensive list of languages and actions and manual running of actions. But even at it's core, it's great for letting computers nitpick about whitespace and formatting, so that code reviews can focus on architecture and design.

Anthony Sottile discusses pre-commit, for using locally by developers, and pre-commit.ci, which can run actions during merge requests.

"Git hook scripts are useful for identifying simple issues before submission to code review. We run our hooks on every commit to automatically point out issues in code such as missing semicolons, trailing whitespace, and debug statements. By pointing these issues out before code review, this allows a code reviewer to focus on the architecture of a change while not wasting time with trivial style nitpicks." - pre-commit.com

"Developers spend a fair chunk of time during their development flow fixing relatively trivial problems in their code. pre-commit.ci both enforces that these issues are discovered, which is opt in for each developer workflow via pre-commit, but also fixes the issues automatically, letting developers focus their time on more valuable problems." - A user of pre-commit.ci

Links:

156: Flake8: Python linting framework with Pyflakes, pycodestyle, McCabe, and more - Anthony Sottile Jun 03, 2021

Show notes

Flake8 is a command-line tool for linting Python projects.
By default, it includes lint checks provided Pyflakes, pycodestyle, and McCabe
It's also a platform, and allows plugins to extend the checks.
Flake8 will run third-party extensions if they are found and installed.

But what does all of that mean?

Anthony Sottile is a maintainer of flake8 and has kindly offered to explain it to us.

Links:

155: Four Questions to Ask Frequently During Software Projects - Tim Ottinger May 28, 2021

Show notes

Tim Ottinger has four questions that work great in many situations, from doing homework, to cooking, to writing code, to entire software projects.

They are actually awesome questions to ask during a software project.

We discuss the questions, where they came from, and look at some uses in software.

The questions:

What is it that needs to be done?
What do we need in order to do it?
Where can we get what we need?
How can we tell if we’re doing it right?

Bonus question that can be swapped out for #1:

What's the most important thing that it doesn't do yet?

Links:

The Four Questions

154: Don't Mock your Database - Jeff Triplett May 21, 2021

Show notes

You need tests for your web app. And it has a database. What do you do with the database during testing? Should you use the real thing? or mock it? Jeff Triplett says don't mock it.

In this episode, we talk with Jeff about testing web applications, specifically Django apps, and of course talk about the downsides of database mocking.

Links:

153: Playwright for Python: end to end testing of web apps - Ryan Howard May 13, 2021

Show notes

Playwright is an end to end automated testing framework for web apps with Python support and even a pytest plugin.

Links:

152: Python Packaging - Brett Cannon May 06, 2021

Show notes

I always learn a lot when I talk to Brett, and this episode is no exception.
We talk about the packaging workflow, tools, changes, pyproject.toml, flit, setuptools, and so much more.
I hope you learn as much as I did in this great discussion.

Links:

151: Python Adventure - Brandon Rhodes Apr 27, 2021

Show notes

Adventure, or Colossal Cave Adventure, was written between 1975 and 1977 in Fortran. Brandon Rhodes ported it to Python 3, initial release in 2011, and still maintains it. We talk to Brandon about this wonderful game.

YOU ARE STANDING AT THE END OF A ROAD BEFORE A SMALL BRICK BUILDING. AROUND YOU IS A FOREST. A SMALL STREAM FLOWS OUT OF THE BUILDING AND DOWN A GULLY. >>> east A bit later... IT IS NOW PITCH DARK. IF YOU PROCEED YOU WILL LIKELY FALL INTO A PIT. >>> light(lamp) YOUR LAMP IS NOW ON. YOU ARE IN A DEBRIS ROOM FILLED WITH STUFF WASHED IN FROM THE SURFACE. A LOW WIDE PASSAGE WITH COBBLES BECOMES PLUGGED WITH MUD AND DEBRIS HERE, BUT AN AWKWARD CANYON LEADS UPWARD AND WEST. A NOTE ON THE WALL SAYS ...

What's happening is that I'm playing adventure, which you can pip install thanks to Brandon Rohdes. Adventure is a faithful port to Python 3 from the original 1977 FORTRAN code by Crowther and Woods that lets you explore Colossal Cave, where others have found fortunes in treasure and gold, ...

In this episode, we talk with Brandon Rhodes about this marvelous game.

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