Brett Cannon

[Please note that the code in this blog post is now up on PyPI as part of the modutil library] One of the new features in Python 3.7 is PEP 562 which

There was a question at work about what the most popular Docker container image for running Python code was? I didn't have an answer, so I asked on Twitter to see if a

On Wednesday, October 25th, I gave a workshop at PyLadies Vancouver on how to package up your code and put it up on PyPI. Since this workshop came about by request, I figured

I recently helped someone release their first project on PyPI and I was asked why I did version numbers the way I did, so I figured I would share where my current thinking

[This was meant to be a contribution to a book collecting chapters on various topics that would help "a programmer who has never been politically active, but is starting to wonder why

To gain commit rights on CPython, a pre-existing core developer nominates your for commit rights to python-committers. That nominator lays out roughly why you should be given commit rights, and then promises to

I was reading the latest issue of Pycoder's Weekly and they mentioned Thomas Kluyver's pull request to implement PEP 518 in pip. The newsletter linked to the reddit thread announcing the landing of

While developing the CLA bot for CPython (aka, the Knights Who Say Ni), I decided to make it asynchronous, partially for performance reasons but also because I simply wanted to. 😁 The problem with

When one thinks of ways of customizing classes at creation time, people probably typically think of metaclasses and class decorators. Metaclasses are at typically viewed as the beginning of class creation while class

One of the hardest parts of doing a new release of CPython is getting people to test it before the final release goes out. While CPython has a test suite and we try

During his PyCon US 2015 keynote, Guido stated that we "[wanted] at least two femail core devs" by PyCon US 2016. Guido, Raymond Hettinger, and myself offered to help mentor women

The CLA bot for the PSF is designed defensively because if the bot accidentally lets a pull request through from someone that has not signed the CLA that could lead to legal troubles.

It all started when ... While developing the CLA bot for Python I realized this might not be the last bot I or anyone else may have to write for helping with CPython's development

If you know me or have been reading this blog for a couple of years then chances are you know I'm a programming language nut. I not only believe that being a polyglot

[This approach as subsequently started to fail for me, so I have switched to the technique outlined for using Prism; it's a bit manual to have to list every language you want highlighted,

I seem to have committal issues when it comes to blogging platforms. I have gone from Blogger, to Svbtle, to Silvrback, and now to Ghost. I initially blogged on Blogger because I wanted

On October 1, 2016, I stopped volunteering for open source projects -- including Python -- for a month. While I still did open source work for Python as part of my job, I

I'm kind of an A/V nerd. Now I'm not hardcore enough to have a vinyl collection or have an amp for my TV, but all my headphones cost over $100 and I

What I'm announcing Today I'm happy to announce the public unveiling of Which Film! I'll discuss how the site came about and what drives it, but I thought I would first explain what

Back in February I started taking a serious look at asynchronous I/O thanks to async/await. One of the things that led to me to looking into this area was when I

Why the hell do I care about security? Bad people exist out there; it sucks, but there it is. That means you need to take precautionary measures to make sure that bad people

Over on python-ideas a discussion has broken out about somehow trying to make p'/some/path/to/a/file return an instance of pathlib.Path. This led to a splinter discussion as to

[This blog post has been sitting as a draft for months, and I'm finally finishing while at home sick; sorry if that makes it a little less coherent compared to my other posts]

Being a core developer of Python has made me want to understand how the language generally works. I realize there will always be obscure corners where I don't know every intricate detail, but

I asked on Twitter if people would be interested in having me write down the history behind my decision to choose GitHub for Python's future development process and people said "yes"