Python Bytes
Python Bytes
Dec 7, 2020
#211 Will a black hole devour this episode?
Play • 45 min

Sponsored by Techmeme Ride Home podcast:

Special guest: Matthew Feickert

Live streamed on Youtube

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Brian #1: Introducing FARM Stack - FastAPI, React, and MongoDB

  • Aaron Basset
  • Describes a todo CRUD application, available on github, to show the concepts in action.
  • Animated gif showing how to use the FastAPI interactive documentation to understand the API in a browser.
  • Shows
    • How app connects to routes and endpoints.
    • The run call with uvicorn to get an async even loop going
    • Connecting to a MongoDB database
    • Defining models and how easy it is to set up a schema.
    • Discusses routes and endpoints and how to hook up all the CRUD endpoints.
    • The React bit is an application that changes as you modify the elements through the endpoint interactive session.
  • Very cool way to work and get something running fast.

Michael #2: py-applescript

  • How would you like to automate your mac with Python rather than the dreadful AppleScript?
  • py-applescript is an easy-to-use Python wrapper for NSAppleScript, allowing Python scripts to communicate with AppleScripts and AppleScriptable applications.
  • Features:
  • Scripts may be compiled from source or loaded from disk
  • Standard 'run' handler and user-defined handlers can be invoked with or without arguments
  • Argument and result values are automatically converted between common Python types and their AppleScript equivalents
  • Compiled scripts are persistent: handlers can be called multiple times and top-level properties retain their state
  • Avoids any dependency on the legacy appscript library, flawed Scripting Bridge framework, or limited osascript executable
  • The applescript package exports four classes - AppleScript, ScriptError, AEType and AEEnum - plus one constant, kMissingValue.

Matthew #3: airspeed velocity

  • Are you developing a tool where performance is of individual functions is key? Do you want to be able to benchmark those metrics over every commit in your project with beautiful interactive visualizations?
  • From the docs: > airspeed velocity (asv) is a tool for benchmarking Python packages over their lifetime. Runtime, memory consumption and even custom-computed values may be tracked. The results are displayed in an interactive web frontend that requires only a basic static webserver to host
  • Developed by a community of people that you’ll probably recognize if you hang around the SciPy and Jupyter ecosystem lead by Michael Droettboom and Pauli Virtanen
  • The docs include examples for benchmarks of NumPy, SciPy, and Astropy (example: SciPy)
    • Example: SciPy’s interpolate.Interpolate1d.time_interpolate test
    • Produces plot of timing performance across multiple parameterizations of the test
    • Click on any node in the plot and get taken directly to the commit on GitHub! 🤯
  • Developed openly on GitHub
  • Up on PyPI as asv python -m pip install asv
  • Very cute and very Pythonic joke in the test dashboards: Report title for library X is “airspeed velocity of an unladen X” 😛

Brian #4: Parsecs experience with Hypothesis testing

  • Parsec blog, Parsec is a client side encrypted file sharing service .
  • Discussion of their experience with Hypothesis to test a 4 year old, large, asynchronous Python project.
  • In particular, an algorithm around RAID5 redundancy.
  • The test needs to check that:
    • blocks can be split into chunks
    • blocks can be rebuilt from chunks
    • blocks can be rebuilt with one missing storage chunk
  • Goes on to describe how they use a stateful mode of hypothesis.
  • It’s a rather complex description. But very welcome.
  • I’ve been waiting to hear how people are using Hypothesis for real world problems.
  • Their recommendations for when to use Hypothesis:
    • If you are writing a kind of encoder/decoder. Hypothesis is simply the perfect solution for you ;-)
    • If you can write a simple oracle (or even better: you already have one available given you are reimplementing a protocol !)
    • If the work is of type "hard to compute, simple to check"

Michael #5: Amazon Web Services now offers Mac instances based on Mac mini; M1 coming later

  • Amazon Web Services (AWS) is now offering Mac instances to developers who want to speed up building and testing of Mac, iOS, iPadOS, watchOS and tvOS apps.
  • You no longer need a Mac and macOS to build iOS apps.
  • The instances are based on physical Mac minis, and you get exclusive access to a machine while you are using it.
  • Right now, Amazon is using Intel-based Mac minis, but the company says that it will have M1 Mac minis available in the first half of next year.
  • Check out the blog post and the video below for more details.
  • Good as a backstop until we get the newer faster M1 chips if you/your company is holding off.
  • Although there's no virtualization in play here, the mac1.metal instances can be spun up and down nearly as rapidly, thanks to the AWS Nitro hardware management—which is invisible, from the customer's perspective.
  • To someone who spins up a mac1.metal instance, the instance is for all intents and purposes a perfectly vanilla, brand-new Intel Mac mini.
  • But there is also macstadium at 1/10th the price.

Matthew #6: visidata

  • Are you doing some data analysis and get given a new CSV file? Your first instinct is to load it up into pandas, right? Wouldn’t it be nice to drop in and explore at the command line though a bit to get the lay of the land and even do some preliminary analysis?
  • From the docs: > Data science without the drudgery! > > VisiData is an interactive multitool for tabular data. It combines the clarity of a spreadsheet, the efficiency of the terminal, and the power of Python, into a lightweight utility which can handle millions of rows with ease
  • Supports large number of file formats: 42
    • Everything from CSV and JSON through JIRA, MySQL, and PNG
  • Developed openly on GitHub by Saul Pwanson
  • On PyPI as visidata
python -m pip install visidata
  • Though as this is a Python application you probably going to want this installed regardless of the virtual environment you’re working in. Distributions of visidata are available through the package managers you’d expect: apt, (also nix, Guix but not yum?), Homebrew, and Conda-forge so can easily get to work on most Unix-based machines.
  • Tested it with our trusty beloved tool pipx and that works too (thanks again Chad Smith!)
python -m pip install pipx
pipx ensurepath
pipx install visidata
  • Some pretty impressive live demo videos on the website
  • visidata has come in quite handy for me on a frequent basis as I deal with JSON serializations of statistical models with hundreds of parameters. Having a way to explore those JSON files without getting visually overwhelmed is super nice!





  • Advent of Code 2020 has started. Happy coding! ❄️
  • If time (don’t want to hog or go over):
  • Kudos to Python Bytes for making full transcripts of all the shows available for view on — this helps be more inclusive of the deaf Python community (including Matthew’s good friend and coauthor)


How to fix any computer - via

Kubernetes Podcast from Google
Kubernetes Podcast from Google
Adam Glick and Craig Box
Cilium, with Thomas Graf
Thomas Graf is the inventor of Cilium and the co-founder of Isovalent. Cilium is a container networking plugin built on top of eBPF, bringing modern SDN technologies to accelerate your pods. Adam and Craig also discuss the many uses of Christmas trees. Do you have something cool to share? Some questions? Let us know: * web: * mail: * twitter: @kubernetespod Chatter of the week * Christmas trees: * Keep clear (mostly) * Culinary uses * Discussed in episodes 104 and 111 News of the week * Google grants $3m to the CNCF to run the Kubernetes infrastructure * AWS Managed Grafana and Prometheus * In partnership with Grafana Labs * Red Hat acquires Stackrox * Windows Containers GA in OpenShift 4.6 * CNCF Annual Report * KubeCon NA 2020 Transparency Report * Rancher announces Harvester * I’ll give you the key * Kubernetes 1.20 feature deep-dives: * Pod impersonation an short-lived volumes * Third-party device metrics GA * More granular control of storage permission * Sonobuoy goes beyond conformance * Project Contour security audit * Pulse: stats from Envoy Mobile * Crossplane 1.0 * Project Karavi from Dell Technologies * Cluster API provider for Microsoft Azure * Vitess project journey report * Tanzu Gemfire * Kubernetes Security Essentials from the CNCF Links from the interview * Chains and tables * Berkeley Packet Filter * eBPF * Episode 91: eBPF and Falco, with Leonard Di Donato * High level languages for kernel developers * eBPF Summit 2020 * Cilium * Is it DNS? * Is it a series of tubes? * BGP * Hubble * Accelerating Envoy and Istio with Cilium * Episode 128: Antrea, with Antonin Bas * Bringing Cilium to GKE with Dataplane v2 * Maglev load balancing connection scheduling * Isovalent * Notes on A16Z’s investment * Thomas Graf on Twitter
41 min
Azure DevOps Podcast
Azure DevOps Podcast
Jeffrey Palermo
Jérôme Laban on Multi-Platform DevOps - Episode 123
This week, Jeffrey is joined by Jérôme Laban, CTO of the open-source Uno Platform, and a 4x recipient of the Microsoft MVP award. The Uno Platform is a framework that aims to improve the development cycle of cross-platform apps using Windows, iOS, Android, and WebAssembly using Mono and Xamarin. It is also Open Source (Apache 2.0) and available on GitHub. In this conversation, Jérôme shares their DevOps success story and all of the thought that went into creating a complete DevOps environment for a platform that targets a multitude of computing environments. He also shares details of its creation, what developers should know about it, gives advice, and shares invaluable resources. Topics of Discussion: [:38] Be sure to visit AzureDevOps.Show for past episodes and show notes. [1:02] About The Azure DevOps Podcast and Jeffrey’s offer to speak at virtual user groups. [1:10] Clear Measure is hiring! Be sure to check out the link in the show notes. [1:33] About today’s guest, Jérôme Laban! [1:49] Jeffrey welcomes Jérôme to the podcast. [1:58] About Jérôme’s career background and what has led him to become the CTO of the Uno Platform. [4:03] Regarding the Uno Platform, what should people be looking for now vs. what they should be looking for in the future for cross-platform and mobile development? [8:00] Jérôme walks listeners through the creation of the Uno Platform. [13:44] Jérôme elaborates on the design of the Uno Platform and the branching strategy that they put in place at the front-end. [15:08] The Uno Platform has enabled automated builds upon pull request creation. How many tests are they able to fit into that and what duration does that pull request build take on the feature branch? [16:28] Is there a short cycle build for smaller issues such as a spelling error? [17:41] Jérôme explains what happens in the environment after the pull request is accepted and merges into master. [20:25] A word from Azure DevOps Podcast’s sponsor: Clear Measure. [20:56] Do you fully deploy to target platforms on the pull request build process? [22:08] Jérôme discusses Calculator.Platform.Uno. [24:11] Jérôme received the codebase for the calculator from the Windows team. Did he also receive the test cases for it as well? And did those port over? [25:28] With Uno, will WinForms applications and WPF desktop applications just be able to be “slid” into WebAssembly and URL launched? [27:09] With Uno, how many different types of test frameworks are there and what are they? [30:24] Is the state-of-the-art for web still Selenium? What about mobile? [31:05] Does the Xamarin UI test cover Android and iOS? [31:13] What would you use for UI testing for WebAssembly? [32:38] If people are interested in this cross-platform UI testing do they need to use Uno Platform? [33:33] For developers that are developing new applications now, what technologies and frameworks should they be investing in and which should they be letting go as we look ahead into the future? [36:13] Jeffrey thanks Jérôme for joining the podcast. [36:45] Where to get in touch with Jérôme and learn more about the Uno Platform. Mentioned in this Episode: Azure DevOps Clear Measure (Sponsor) .NET DevOps for Azure: A Developer's Guide to DevOps Architecture the Right Way, by Jeffrey Palermo — Available on Amazon! — Click here to download the .NET DevOps for Azure ebook! Jeffrey Palermo’s Youtube Jeffrey Palermo’s Twitter — Follow to stay informed about future events! The Azure DevOps Podcast’s Twitter: @AzureDevOpsShow Uno Platform Uno Platform Discord Community @UnoPlatform on Twitter Jérôme Laban’s Twitter @jlaban Jérôme Laban’s Blog Blazor .NET 5.0 NuGet Xamarin Calculator.Platform.Uno Selenium GitVersion Mergify Want to Learn More? Visit AzureDevOps.Show for show notes and additional episodes.
38 min
Software Defined Talk
Software Defined Talk
Software Defined Talk LLC
Episode 281: That’s a thing, I don’t need to read about it
This week we discuss VMware CEO Pat Gelsinger jumping to Intel and what is going on with DevSecOps. Plus, lots advice on picking movies both you and your partner will enjoy. Rundown VMware CEO → Intel What’s the latest Solarwinds hack news? Coté is figuring out “DevSecOps” - or is it “DevOpsSec”? Relevant to your interests M&A Red Hat to Acquire Kubernetes-Native Security Leader StackRox ( F5 to acquire @Volterra_ ( VMware/Intel VMware has the strategy and culture to thrive after CEO Pat Gelsinger's exit to Intel ( VMware Names Zane Rowe As Interim CEO ( Prodigal Son Gelsinger Returns As Intel CEO ( Bitcoin and Blockchain Is blockchain coming to your bank? ( 85% of Italian Banks Are Exchanging Interbank Transfer Data on Corda - CoinDesk ( Lost Passwords Lock Millionaires Out of Their Bitcoin Fortunes ( Don’t Forget Your Bitcoins ( RISC-V BeagleBoard BeagleV ( Raspberry PI Why We Love the Raspberry Pi ( Buy a Raspberry Pi Zero W – Raspberry Pi ( Solarwinds Details on SolarWinds Hack ( SolarWinds hires former Trump cyber security chief Chris Krebs ( NYT JetBrains story, I'm calling it - the story was irresponsibly released. ( Deplatforming Parler accuses Amazon of breaking antitrust law in suspending hosting services. ( Parler Finds Refuge With the Far-Right's Favorite Webhost ( Parler loses data ( Parler’s amateur coding could come back to haunt Capitol Hill rioters ( The balkanization of the cloud is bad for everyone ( Decentralization Is A Necessity Now ( It happened. Twitter shut down @realDonaldTrump for good ( State of the World 2021 ( Goodreads plans to retire API access, disables existing API keys | Joe's website ( ‘Your Cock Is Mine Now:’ Hacker Locks Internet-Connected Chastity Cage, Demands Ransom ( Video games have replaced music as the most important aspect of youth culture | Sean Monahan ( Intel CEO Bob Swan to be replaced with VMWare's Pat Gelsinger ( WhatsApp gives users an ultimatum: Share data with Facebook or stop using the app ( First Oracle said it powered Zoom. Then AWS claimed it. Now Zoom says it uses co-located kit ( Poland plans to make censoring of social media accounts illegal ( Dropbox to cut workforce by 11% ( Nonsense I'm glad you have passed the certification! I just don't want to see it. ( Coté in TikTok ( Sponsors strongDM — Manage and audit remote access to infrastructure. Start your free 14-day trial today at: ( Now Hiring Jordi wants you to work at Tricentis ( Michael wants to be a Solution Architect at Cloudbees ( More info in SDT Slack ( see channel #jobs Conferences Call for Papers ( ends on Jan. 31st for DevOpsDay Texas on March 2nd. ( SDT news & hype Join us in Slack ( Send your postal address to ( and we will send you free laptop stickers! Follow us on Twitch (, Twitter (, Instagram ( and LinkedIn ( Brandon built the Quick Concall iPhone App ( and he wants you to buy it for $0.99. Use the code SDT to get $20 off Coté’s book, ( Digital WTF (, so $5 total. Become a sponsor of Software Defined Talk (! Recommendations Matt: Apple TV’s Ted Lasso ( Brandon: Possessor ( Coté: Descript (, so far. Bear app ( Don’t spike your mind during family time with inserting work. Photo Credit ( Photo Credit (
1 hr 2 min
The Cloudcast
The Cloudcast
Cloudcast Media
An Event-Driven Apps Look Ahead for 2021
James Urquhart (@jamesurquhart, Global Field CTO @VMware, O’Reilly Author) talks about event-driven application architectures, how it's changing real-time business models, and technology stack driven the evolution.  *SHOW: *483 *SHOW SPONSOR LINKS:* * BMC Wants to Know if your business is on its A-Game * BMC Autonomous Digital Enterprise * Datadog Security Monitoring Homepage - Modern Monitoring and Analytics * Try Datadog yourself by starting a free, 14-day trial today. Listeners of this podcast will also receive a free Datadog T-shirt. * Okta - You should not be building your own Auth * Learn how Okta helped Cengage improve student success rates during COVID. *CLOUD NEWS OF THE WEEK *- *CHECK OUT OUR NEW PODCAST - **"CLOUDCAST BASICS"* *SHOW NOTES:* * Flow Architectures - The Future of Event Streaming & Event-Driven Integration * The Cloudcast Eps.43 - James Urquhart * The Cloudcast Eps.344 - Bringing AI to the Edge ( * The Cloudcast Eps.334 - The Future of Edge Computing (Derek Collison, Synadia) *Topic 1 *- Welcome back to the show. We’ve known you for quite a while, going back to working together on very early Cloud stuff. You’ve always enjoyed being focused on complex, distributed systems. Tell us what you’re focused on these days.  *Topic 2 *- Let’s talk about this concept of “event-driven” and flow. Where did it come from, what does it do, why is it valuable to application designers? *  * *Topic 2a *- What is a “flow” and how is it related to event-driven? *Topic 3 *- Events are data. We’ve had relational databases for data, and then we had NoSQL or eventually-consistent databases for data. Are events a new type of data, or a new way to deal with data in a different context?  (channels, replays, etc.) *Topic 4 *- Can we talk through an example of an event-driven application, or an event-driven integration between multiple organizations? How is it new/different? What unique capabilities does it bring now?  (Kafka, IoT, API Gateways, etc.) *Topic 5 *- Cloud made IT self-service. Serverless made Ops become on-demand. If I’m a business leader, what does event-driven give us?*  * *Topic 6 *- Where are we in the maturity of event-driven architectures? What might be some of the next stages coming in 2021 or 2022?   *FEEDBACK?* * Email: show at thecloudcast dot net * Twitter: @thecloudcastnet
43 min
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