Python Interviews

Mike Driscoll

• Publisher: Packt Publishing
• Year: 2018
• eBook ISBN: 9781788391764
• Edition: 1
• Topic: Computer Science
• Subtopic: Programming
• Index: Computer Science

Mike Driscoll takes you on a journey talking to a hall-of-fame list of truly remarkable Python experts. You'll be inspired every time by their passion for the Python language, as they share with you their experiences, contributions, and careers in Python.About This Book• Hear from these key Python thinkers about the current status of Python, and where it's heading in the future• Listen to their close thoughts on significant Python topics, such as Python's role in scientific computing, and machine learning• Understand the direction of Python, and what needs to change for Python 4Who This Book Is ForPython programmers and students interested in the way that Python is used – past and present – with useful anecdotes. It will also be of interest to those looking to gain insights from top programmers.What You Will Learn• How successful programmers think• The history of Python• Insights into the minds of the Python core team• Trends in Python programmingIn DetailEach of these twenty Python Interviews can inspire and refresh your relationship with Python and the people who make Python what it is today. Let these interviews spark your own creativity, and discover how you also have the ability to make your mark on a thriving tech community. This book invites you to immerse in the Python landscape, and let these remarkable programmers show you how you too can connect and share with Python programmers around the world. Learn from their opinions, enjoy their stories, and use their tech tips.• Brett Cannon - former director of the PSF, Python core developer, led the migration to Python 3.• Steve Holden - tireless Python promoter and former chairman and director of the PSF.• Carol Willing - former director of the PSF and Python core developer, Project Jupyter Steering Council member.• Nick Coghlan - founding member of the PSF's Packaging Working Group and Python core developer.• Jessica McKellar - former director of the PSF and Python activist.• Marc-Andre Lemburg - Python core developer and founding member of the PSF.• Glyph Lefkowitz - founder of Twisted and fellow of the PSF• Doug Hellmann - fellow of the PSF, creator of the Python Module of the Week blog, Python community member since 1998.• Massimo Di Pierro - fellow of the PSF, data scientist and the inventor of web2py.• Alex Martelli - fellow of the PSF and co-author of Python in a Nutshell.• Barry Warsaw - fellow of the PSF, Python core developer since 1995, and original member of PythonLabs.• Tarek Ziade - founder of Afpy and author of Expert Python Programming.• Sebastian Raschka - data scientist and author of Python Machine Learning.• Wesley Chun - fellow of the PSF and author of the Core Python Programming books.• Steven Lott - Python blogger and author of Python for Secret Agents.• Oliver Schoenborn - author of Pypubsub and wxPython mailing list contributor.• Al Sweigart - bestselling author of Automate the Boring Stuff with Python and creator of the Python modules Pyperclip and PyAutoGUI.• Luciano Ramalho - fellow of the PSF and the author of Fluent Python.• Mike Bayer - fellow of the PSF, creator of open source libraries including SQLAlchemy.• Jake Vanderplas - data scientist and author of Python Data Science Handbook.Style and approachThis is a book of one-to-one interviews with leading Python programmers and luminaries in the field.

Python Interviews

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Python Interviews

Copyright © 2018 Packt Publishing

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First published: February 2018

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Foreword

Welcome, all, to Python Interviews!

People often get confused about open source programming languages, focusing merely on the technology behind the language — be it the language itself, the libraries available for it, or the impressive products that are built with it — and not on the ecosystem of individuals that are responsible for the language existing in the first place.

Python is an open source language, driven mostly by volunteer efforts from all around the globe. It's important to focus not only on the technology behind what makes Python great, but also the individuals that make it great as well.

The world of Python is not one comprised merely of code, but of a community of like-minded individuals coming together to make the world a better place through the open source ethos. Thousands of individuals have contributed towards the success of Python.

This book contains interviews with an excellent selection of the individuals that power Python and its wonderful open source community. It dives into the personal backgrounds of these individuals and the opinions they have about the community, the technology, and the direction we're headed in, together.

But, must importantly — it exposes that Python, the programing language, is indeed comprised of persons, just like you, trying to make a difference in the world, one step at a time.

Kenneth Reitz

Director at Large for the Python Software Foundation

Contributor

About the Author

Mike Driscoll has been using Python since April 2006. He blogs for the Python Software Foundation. Other than blogging, he enjoys reading novels, listening to a wide variety of music, and learning photography. He writes documentation for the wxPython project's wiki page and helps wxPython users on their mailing list. He also helps Python users on the PyWin32 list and occasionally the comp.lang.py list too.

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Preface

Near the end of 2016, I was brainstorming with my editor about the kinds of books might be of interest. I had been doing a series of articles on my blog called PyDev of the Week that inspired us into crafting a book based on interviewing core members of the Python community. I spent some time hashing out 20 names of people that I thought would be good for the book and then I started contacting them in 2017.

Over the course of about 8-12 months, I ended up interviewing 20 pillars of the Python community, although my list changed several times over that period. Some people weren't available or couldn't be reached. But I persevered and managed to pull together a well-rounded set of representatives of the Python programming community.

In this book, you will get interesting anecdotes about the history of Python and its creators, such as Brett Cannon and Nick Coghlan. You will discover why Python didn't have Unicode support in its first release, and you'll hear from core developers about where they think Python is going in the future. You will also hear from some well-known Python authors, like Al Sweigart, Luciano Ramalho, and Doug Hellman.

I also spoke with some of the creators or core developers of popular third-party packages in Python, such as web2py (Massimo Di Pierro), SQLAlchemy (Mike Bayer), and the Twisted Framework (Glyph Lefkowitz), among others.

My interview with Carol Willing was a lot of fun. She is also a core developer of the Python language itself, so learning her views on women in technology and Python was quite enlightening. She is also a contributor to Project Jupyter, so learning more about that project was exciting.

I think you will find Alex Martelli and Steve Holden's interviews to be especially compelling as they have been working with Python for a very long time and have many interesting insights.

There is a lot to learn from all the individuals that I spoke with. If you happen to know them, you know that even better than I do. All of them were great to chat with and very responsive to me even on the shortest of timelines. If you happen to meet them at a conference, be sure to thank them for their contributions.

Special thanks go out to all the people I interviewed. They took time out of their lives to help me with this project and I truly appreciate it. I also want to thank my editors for keeping this project on track. Finally, I would like to thank my wife, Evangeline, for putting up with me interviewing people at random times throughout the summer. And finally, I want to thank you, dear reader, for checking out this book.

Chapter 1. Brett Cannon

Brett Cannon is a Canadian software engineer and Python core developer. He is a principal software developer at Microsoft, where he works on editing tools. Previous roles include software engineer at Google and creator at Oplop. Brett became a fellow of the Python Software Foundation (PSF) in 2003 and served as a director of the PSF between 2013 and 2014. He is a former PyCon US committee member and was conference chair of PyData Seattle 2017. Brett led the migration of CPython to GitHub and created importlib. Among his open source achievements is caniusepython3 and he is the co-author of 17 successful Python Enhancement Proposals.

Discussion themes: core developers, v2.7/v3.x, Python sprints.

Catch up with Brett Cannon here: @brettsky

Mike Driscoll: Why did you become a computer programmer?

Brett Cannon: I always found computers interesting, as far back as I can remember. I was lucky enough to go to an elementary school with a computer lab full of Apple IIes, back when that was the cutting edge, so I was exposed to them relatively early on.

In the year between junior high and high school, I took a computer class over the summer and that included a little bit of Apple BASIC. I did it and I excelled at it, to the point that I think I finished the entire class in the first week. It hadn't really clicked that I could do that for a job at that point.

This continued through high school, and then when it came time to pick courses for junior college, my mom had me promise her two things. I agreed that I would take a course in philosophy and I would take a course in computer programming. So that's what I did and I loved both.

Once again, I read my introductory C book in the first two weeks, which was supposed to last for the whole semester. I remember the first time I finished it, I sat down and implemented tic-tac-toe one day after class. I even forgot to eat dinner! It was just one of those eureka moments. The feeling of boundless creativity that this tool provided just engulfed me. That's how I got into programming.

Brett Cannon: 'The feeling of boundless creativity that this tool provided just engulfed me. That's how I got into programming.'

I knew that tic-tac-toe was a solved problem, so I thought that I could actually write the logic so that I could play tic-tac-toe perfectly as a program. I spent something like six hours one evening doing it, and I was utterly blown away that I was actually able to do that. It opened up the possibilities of what computers could do, and the freedom of it and the ability to think about the problems just really grabbed me. I've been doing it ever since.

Driscoll: What led you to becoming so involved with Python and its community?

Cannon: Well, I ended up going to Berkeley and getting a degree in philosophy, but I kept taking computer science courses. The introductory computer science course at Berkeley had an entrance exam, and I was worried that I didn't know object-oriented programming, si...

Table of contents

• Python Interviews