Anthony Shaw @anthonypjshaw Twitter profile | Pikagi

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Anthony Shaw

@anthonypjshaw

21,709

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2,819

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Python, Cloud and OSS at Microsoft. Author of "CPython Internals". x3 Father, Christian, PSF Fellow, Fellow at Macquarie University @tonybaloney @fosstodon .org

Sydney, Australia

https://t.co/kxnESmd16T

Joined December 2008

Don't wanna be here? Send us removal request.

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@anthonypjshaw

Anthony Shaw

3 years

Hey new followers! I'm Anthony 👋 I'm a Python and Open-Source advocate at Microsoft I tweet about: 🐍 Python ⏱️ Python Performance 🗒️ Python Best Practices 🦹‍♂️ Python Security and Testing 🦹‍♂️ Reverse Engineering 🧑‍🔬 Compilers 🧑‍💻 VS Code 🐶 My Dog 🇦🇺 Life in Australia

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@anthonypjshaw

Anthony Shaw

3 years

GitHub Markdown now supports diagrams!

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Include diagrams in your Markdown files with Mermaid

Mermaid is a JavaScript based diagramming and charting tool that takes Markdown-inspired text definitions and creates diagrams dynamically in the browser.

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@anthonypjshaw

Anthony Shaw

2 years

Python 3.10 match statements are faster at pattern matching sequences than equivalent if-statements. MUCH faster. The second functions runs 86% faster than the first. Source:

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Anthony Shaw

3 years

Python 3.11 is looking up to 45% faster for creating instances of basic classes and calling methods (most Python code!) 🥳

@methane

methane

3 years

@anthonypjshaw FWIW, Python 3.11.0a6 is significantly faster than 3.10.

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Anthony Shaw

4 years

Day 1 at Microsoft- “your job is to work with open source communities to improve @code and Azure for Python users” “this role is flexible, you choose the path” Day 45 at Microsoft- “maybe we should have been more specific.”

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Anthony Shaw

4 years

So my big news is that in 2021 I’ll be joining Microsoft’s open source advocacy team, focusing on the Python community and Microsoft ecosystem for Python developers. Working with @nnja and lots of other brilliant people. So excited! This Python thing had better be big 🤗

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Anthony Shaw

4 months

Last night Microsoft did a one off sponsorship of a lot of the open source projects we depend on as a thank you to those maintainers and communities

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@anthonypjshaw

Anthony Shaw

2 years

Python 3.11 also introduces the "Self" type. Great for class methods that return an instance of cls. (e.g. factory methods). They're also great for having type-valid inheritance. super_me is an AdminPerson, even though the class method is described in the base class.

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Anthony Shaw

3 years

Take @code to the next level for Python Development! Months in the making. here's my definitive guide on VS Code for Python Development..

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Advanced Visual Studio Code for Python Developers – Real Python

In this tutorial, you'll learn how you can configure, extend, and optimize Visual Studio Code for a more effective and productive Python development environment. By digging into this customizable...

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Anthony Shaw

5 years

🥳 big announcement! Always wanted to understand how CPython works? Maybe even contribute to the code? Here’s your chance. Announcing the most comprehensive article I’ve ever written. Covering CPython 3.8 from top to bottom 🛶

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Your Guide to the CPython Source Code – Real Python

In this detailed Python tutorial, you'll explore the CPython source code. By following this step-by-step walkthrough, you'll take a deep dive into how the CPython compiler works and how your Python...

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Anthony Shaw

3 years

Ok, the last one surprised me. - regular class is 70% faster than dataclass - named tuple is 60% faster than dataclass - regular class is ~30% faster than namedtuple - simple dict is 30% faster than class

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Anthony Shaw

4 years

Vim: the original Escape Room

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@anthonypjshaw

Anthony Shaw

4 years

📣 my book “CPython Internals” - a deep dive into Python’s inner workings, is FINALLY available for purchase!! It’s Early Access & there’s a discount until Thursday night. 🥳

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CPython Internals Book – Real Python

Unlock the inner workings of the Python language, compile the Python interpreter from source code, and participate in the development of CPython. The "CPython Internals" book shows you exactly how.

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Anthony Shaw

2 years

Rejecting my kids’ PRs with required changes is a new level of parenting 🤣

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Anthony Shaw

5 years

Look what just arrived in the mail!! It looks fantastic

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Anthony Shaw

3 years

Facebook just open-sourced their high-performance fork of CPython 3.8 ahead of PyCon 2021, featuring a type-annotations based byte code evaluator, a JIT, a specialised coroutine eval, immutable modules, and a byte code cache.

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GitHub - facebookincubator/cinder: Cinder is Meta's internal performance-oriented production...

Cinder is Meta's internal performance-oriented production version of CPython. - facebookincubator/cinder

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@anthonypjshaw

Anthony Shaw

2 years

My review of Mastering Python 2nd edition

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Anthony Shaw

2 years

🙄

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Anthony Shaw

4 years

First day at Microsoft today! IF anything breaks, it's not my fault.

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Anthony Shaw

2 years

How many times. It’s pronounced “JIT” Hub 🙄

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Anthony Shaw

3 years

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Anthony Shaw

3 years

Pyjion, a drop-in JIT compiler for Python 3.10 is now v1.0! Pyjion uses the power of the .NET 6 cross-platform JIT compiler to optimize Python code on the fly, with NO changes to your source code required. Linux, macOS, and Windows, x64 and ARM64!

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Anthony Shaw

3 years

Ahh, Open Source.

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Anthony Shaw

4 years

oh no. no no no no no.

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Anthony Shaw

9 months

Disable the GIL and enable the JIT! Python 3.13 YOLO edition

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Anthony Shaw

4 years

After 5 weeks of working at @microsoft my conclusion is that @shanselman is actually an AI. He's present on every platform, how is this possible? 🧐

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Anthony Shaw

2 years

Furthermore, mapping matching is faster in 3.10 than equivalent Python code. There are some edge cases though but they're being improved on for 3.11 Right function is 47% faster than the Left function (a play on the Chicken, Fox, and Grain riverboat problem)

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Anthony Shaw

5 years

🎊🥳 big announcement! Will be publishing my first book “CPython Internals” in partnership with @realpython in 2020. Early access late this year. Book is written for 3.8 and have agreed to 2nd edition for 3.9 ✍️

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Anthony Shaw

3 years

🥳After 2 years of work, my book, CPython Internals is now available “in real life”! There’s a video of what’s inside and a walkthrough in this link 👇 33% off til the end of the week.

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CPython Internals: Paperback Now Available – Real Python

Your guide to the Python 3 interpreter is now available as a paperback book. (Limited time launch price available now.)

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Anthony Shaw

4 years

🥳 CPython Internals is officially finished! Digital launch today, paperback (very) soon. Have resolved over 1000 bits of feedback during early access thanks to the thousands of early access readers! big thanks @Jo_Jablonski , Jacob and @dbader_org

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Anthony Shaw

4 years

Just got the —final— edit of my book in the post in time for my birthday 🥳

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Anthony Shaw

3 years

@Microsoft It doesn’t matter because the game assigns the mines after the first click so that you can never click on a mine first

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Anthony Shaw

11 months

Baby steps, but just got a build of CPython 3.13a1+ with "free-threading", (no GIL) with a HTTP network server that runs each request inside a PEP554 sub interpreter. Now I need to get the sub interpreters to load and start an ASGI app, then we'll have lift off 🚀

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Anthony Shaw

2 years

🧵 on Python Generics. When typing functions, sometimes you want to be flexible. In this example, the function returns the first item in a sequence, or the default value. BUT the typing information about the list is lost 🤔

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Anthony Shaw

5 years

👀 Yes... the CPython book is happening. Plus because @dbader_org is such a nerd, the book is compiled and rendered via a Docker container with Python scripts 🤪 I've configured a PyCharm environment and FileWatchers so it compiles automatically (check out the top-right!)

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Anthony Shaw

7 years

This is #PyCon2017

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Anthony Shaw

8 years

@RealHughJackman it's going to be like Samson having his hair cut. Wolverine becomes a kitten 🐱

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Anthony Shaw

11 months

Ship it!! Was able to get FastAPI running inside PEP554 sub interpreters by using the hypercorn asyncio worker daemons with shared sockets on the —disable-gil build. 1/

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Anthony Shaw

4 years

Woo we have test prints of the release version! Well, I don’t have any, but Jacob does.

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Anthony Shaw

3 years

I'm sure everyone knows this one, but list comprehensions are faster than for loops. The second function is 20% faster than the first. It's also easier to read!

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Anthony Shaw

2 years

Commit message "refactoring"

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Anthony Shaw

6 years

🎉 my first article for @realpython is out! “Getting Started With Testing in Python”. It’s targeted at Python developers who are new to testing. It is a very comprehensive tutorial and a big investment of time. Enjoy!

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Getting Started With Testing in Python – Real Python

In this in-depth tutorial, you’ll see how to create Python unit tests, execute them, and find the bugs before your users do. You’ll learn about the tools available to write and execute tests, check...

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Anthony Shaw

5 years

CPython Source code guide to be published next week!!! Updated for 3.8b3. Chrome reckons reading time is 117 minutes 😅

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Anthony Shaw

5 years

Was thinking that once I’m done with this book I might record a YouTube series for offensive/defensive application security where I show how to hack an application written in Python, why and then how to fix it. Would people be interested in this? It’d probably be 10 part series

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Anthony Shaw

5 months

Spot what's new... 🧐

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Anthony Shaw

4 years

vscode-pets 0.4.0 is out. You can play fetch with your cat/dog. someone please send help.

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Anthony Shaw

4 years

The Zen of Python says "Errors should never pass silently.". Here is a solution for that problem.

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Anthony Shaw

2 years

Playing with #PyScript got some very basic demos working. First task this week is to work out how @pythonvscode can consider the contents of the `py-script` tag as Python code and activate the editor

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Anthony Shaw

3 years

Today I wanted to see if I could make my FastAPI application faster by running it on PyPy. The result? It was 3-4x faster! I've written a blog post on how to deploy PyPy 3.9 into Production using Docker + Azure Container Instances

PyPy in Production

Deploying a real-world Python application with PyPy

tonybaloney.github.io

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Anthony Shaw

3 years

I can’t believe this.

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Anthony Shaw

3 years

Sam Gross from Facebook has submitted a design proposal on removing CPython's GIL. There's a PoC branch of CPython with it as well The document is worth a read, but interestingly the response from the core developers wasn't "NO"

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Python Multithreading without GIL

Multithreaded Python without the GIL Sam Gross [email protected] / [email protected] Source code: https://github.com/colesbury/nogil Questions? Comments? Please post in: https://github.com/colesbury/...

docs.google.com

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Anthony Shaw

3 years

keep seeing the following code: int( x / y ) as a way of doing rounded division in Python, please don't do this x // y is the correct operation. int ( x/y ) is also 2x slower because it does division once, creates a float and then immediately deallocates it after creating an int

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Anthony Shaw

6 years

Finished the first draft of the “complete” review of CPython internals. Here’s a preview. It’s so ridiculously long Twitter made me split the video in 3 parts

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Anthony Shaw

3 years

I gave a talk this week "Visual Studio Code for Python Developers" -- check out the recording. Learn something new about VS Code and Python, or your money back*! *this content is free 😁

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Devs Downunder - Visual Studio Code for Python Developers

Event DescriptionVisual Studio Code, or “VS Code” for short is a free and open source code editor by Microsoft. VS Code can be used as a lightweight code edi...

www.youtube.com

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Anthony Shaw

2 years

PyPi is run by a group of (very nice) volunteers. asking people to do something which takes a few seconds every time you upload a package that makes the whole platform more secure for everyone is not controversial. I have to do 20+ hours of training a year to lifeguard for free

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Anthony Shaw

3 years

I hope folks realise how much work goes into a single @realpython article 😰

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Anthony Shaw

3 years

MSFT quarterly revenue up 19%. Vscode-pets released this quarter. Coincidence? 🤷🏻‍♂️

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Anthony Shaw

4 years

🎉vscode-pets 0.11.0 is out! Featuring a whole new pet due to huge demand.. a RUBBER DUCK 🦆--May or may not help with debugging-- Credit @marcduiker again for the artwork. This duck has style.

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Anthony Shaw

4 years

Decided Python is too slow. Time to make things faster. What could go wrong? The entire first chapter is on how to write Hello World 🤷🏻‍♂️

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Anthony Shaw

9 months

New blog post! "Python 3.13 gets a JIT" we look at what this new JIT for Python is about, what a copy-and-patch JIT is (by writing one in Python) and whether this is faster? #python

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Python 3.13 gets a JIT

Reviewing the JIT in Python 3.13

tonybaloney.github.io

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Anthony Shaw

4 years

Oh, so in other news, Guido van Rossum is reviewing my CPython Internals book. #NoPressure

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Anthony Shaw

5 years

Here is the table of contents for my CPython Internals book. What's missing? What else would you like to read? What are you looking forward to reading?

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Anthony Shaw

5 years

People spend so much money on encryption to secure their secrets. Just upload it to SharePoint. Nobody will EVER find it again.

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Anthony Shaw

5 years

Announcement: I’m writing a book on CPython internals. Hopefully published late 2019 or early 2020

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Anthony Shaw

4 years

Why does the UK-EU trade agreement have paragraphs from a 1998 Comp Sci text book in it? Also. They’re sharing DNA and fingerprint data over POP3 (a plain text email protocol)? 😳 the previous page suggests encrypting with SHA1, which my kids could crack..

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Anthony Shaw

3 years

You know what I’d love to do? Live pair programming with different Python programmers. Then stream it. Would have to think through the format. Think that convincing guests might be tough, would folks watch this? We’d have an app to build/fix/refactor and chat at the same time

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Anthony Shaw

3 years

Back in my day, we didn’t call them microservices, we called them “cron jobs”

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Anthony Shaw

3 years

🥳 My CFP for PyCon US 2022 was accepted. My talk is-- "Write faster Python! Common performance anti-patterns" and it's going to be fun (and controversial 🤣)

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Anthony Shaw

3 years

Maybe we should finally put this book up for sale! Thousands of early-access copies sold, soo much feedback integrated to get to 1st Ed.

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Anthony Shaw

2 years

Here are my slides on “what’s new in Python 3.11”

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What's new in Python 3.11

What's new in Python 3.11 - Download as a PDF or view online for free

www.slideshare.net

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Anthony Shaw

4 years

New article on my blog. Assembly ❤️ Python. I regret nothing.

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Writing Python Extensions in Assembly

A deep-dive technical overview of how you can write CPython extensions in assembly (with a bonus tutorial on assembly programming)

tonybaloney.github.io

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Anthony Shaw

3 years

Python socks 🧦

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Anthony Shaw

2 years

Python 3.11 has PEP681, a dataclass_transform decorator for dataclasses. You can use this to annotate your own dataclass implementations to get all the sweet typing information in your IDE. This small patch to @dabeaz 's "dataklass" implementation shows it working in VS Code

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Anthony Shaw

3 years

You can now use Python 3.10.0 in GitHub actions! Make sure you put the version number in quotes (long story)

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Anthony Shaw

5 years

The code comments in the CPython Garbage Collection algorithm are a little unorthadox..

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Anthony Shaw

2 years

A bit of #mentalhealth sharing. I’ve never talked about this publicly so here goes… I’ve struggled with anxiety and depression on and off for ~15 years. This month is a milestone as I’ve finished transitioning off an SSR I’ve been taking it daily for about 6 years

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Anthony Shaw

3 years

Christmas presents sorted ✅

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Anthony Shaw

4 years

I choked slightly when this worked. Python 3.9 is evaluating and executing on .NET 5's JIT engine. Importing modules, executing C extensions, all the jazz. Now to get the whole test suite working... 😅

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Anthony Shaw

3 years

I knew it. This is how it happens. #Copilot

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Anthony Shaw

2 years

I’ve been promoted to a Principle Cloud Advocate at Microsoft 🥳 the upgrade is an implementation detail; I’m still doing all things Python! #microsoftlife

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Anthony Shaw

1 year

Our team at Microsoft are going to be hiring another Python Developer Advocate very soon. We're looking for content creators (writers, video, or streaming) that are always looking to improve their Python knowledge and share that with others.

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Anthony Shaw

4 years

📽️ The first episode of my new YouTube series "Hacking with Python" is out. In this episode, I show you how to (ab)use SQL Injection lmk what you think

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Hacking with Python 1 - SQL Injection

Episode 1 of the "Hacking with Python" Series is an introduction to SQL Injection with some hands-on examples.Links used during this episode:- SQL Injection ...

www.youtube.com

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Anthony Shaw

4 years

I know you're not supposed to ship to production on Friday, but vscode-pets 0.7.0 is out for @code . Featuring a new pet 📎thanks to @marcduiker working tirelessly overnight designing this NB: Clippy will not chase the ball (yet?)

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Anthony Shaw

4 years

I'm planning a YouTube series "Hacking with Python". Episode 1 is on SQL Injection so I made a little sandbox for you to try different techniques (without breaking the law)

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Anthony Shaw

3 years

After spending a few hours on FastAPI + SQLalchemy, this was the pattern I was most comfortable with. Create a SQL model and use a script @tiangolo made to reflect it into a Pydantic class to avoid writing models twice and polluting Pydantic models /w SQLAlchemy attributes

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Anthony Shaw

5 years

🥁🥁🥁🥁 Here is what my book looks like! It’s a snake in an X-ray machine 🙌😆 Final draft done in 3 weeks ready for physical copies at @pycon 2020.

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Anthony Shaw

4 years

90% test coverage

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Anthony Shaw

2 years

I'm not sure what I was expecting by running > pip install nodejs

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Anthony Shaw

4 years

Full Python test suite is running and passing with .NET JIT enabled, which means I can try some third party frameworks and libraries like Django, Flask, Pytest and see what happens.

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Anthony Shaw

3 years

Python developers are seriously spoilt with Pytest. In C++ land its so frustrating.

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Anthony Shaw

3 years

Loving Python 3.10 so far. All these "little" improvements like suggesting which attribute you meant are going to make life much easier

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Anthony Shaw

3 years

Building out a demo app with FastAPI + Tortoise ORM. - async by default - db models can be reflected into pydantic models easily - works with asyncpg (Postgres async) and aiosqlite So far, so good. ⭐️⭐️⭐️

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Anthony Shaw

2 years

Hello from #EuroPython2022

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Anthony Shaw

3 years

Don't know why I keep using the reverse slice to reverse lists [::-1]. There are two better options. In-place reverse method and the builtin reversed() function which returns an iterator.

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Anthony Shaw

3 years

Running my performance linter over the Azure Functions Python worker code to see whether it can find improvements. It came back and said that "os.path.join" and "os.path.exists" are loop-invariant and should be moved/refactored. Why? Well...

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Anthony Shaw

3 years

Discovered this really handy pdb function this week. Put it in your except clause and it'll enter PDB console when an unhandled exception is caught. It stops at the frame that was executing.

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Anthony Shaw

4 years

Testing out PEP622 pattern matching (proposed new syntax in Python 3.10). It's like a case statement, but the cases support a range of pattern-matching features. This could replace a long-and-messy set of nested if statements with something far easier to comprehend.

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Anthony Shaw

11 months

My Masters Thesis is now available online. I researched the trend in Python performance and whether it impacts Data Science workloads. I looked at workarounds, changes, improvements in 3.11-3.12 (including sub interpreters) along with lots of benchmarks

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Towards evaluating Python as a suitable data science programming language for modern computing...

The two most popular Computer Programming languages for Data Science are Python, and R. Both are dynamically typed, interpreted languages. Python first appeared in 1991, and R in 1993. Thirty years...

figshare.mq.edu.au

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Anthony Shaw

3 years

I see this one a lot. Try..Except statements have an overhead. Don't put them inside a loop unless you have to. Benchmarking both shows putting it outside is 10% faster

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Anthony Shaw

2 years

📊The recording of my PyCon US 2022 talk “Write faster Python! Common performance anti-patterns” is up

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Talk - Anthony Shaw: Write faster Python! Common performance anti...

This talk will show small, specific examples of Python code that can be refactored to be faster without compromising on readability. At the start of the talk...

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