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Programming Leftovers

Submitted by Roy Schestowitz on Friday 18th of June 2021 01:11:23 AM Filed under
Development
  • vrurg: A Long Promised Article About Roles

    A while ago I promised a couple of people an article about Raku roles. To be frank, it was a long time ago. The plan was to cover a number of other subjects needed to better understand a few concepts behind the role model implementation in Rakudo.

    Unfortunately, it turned out to be one of those perfect examples of the principle: “wanna make the God laugh? tell him your plans!” But promise is promise and a few days ago the WTF mood took me over, all actual tasks were pushed back, and my note-taking app was ready for a new draft.

  • Modelplace.AI is an app store for OpenCV compatible AI models

    OpenCV open-source computer vision library is used in a wide variety of projects and products, and last year, the community also launched the OpenCV AI Kit (OAK) Myriad X-based hardware solution for computer vision.

    However there’s a learning curve to use the library, especially in combination with artificial intelligence models, and it can be challenging and time-consuming to newcomers. So in order to broaden the reach of the solution, OpenCV has now introduced Modelplace.AI, an app store/marketplace for AI models working with the OpenCV library.

  • Picovoice offline Voice AI engine now works on Arduino

    Last year, I wrote about Picovoice support for Raspberry Pi enabling custom wake-word and offline voice recognition to control the board with voice commands without relying on the cloud.

    They used ReSpeaker 4-mic array HAT to add four “ears” to the Raspberry Pi SBC. I also tried to generate a custom wake-word using the “Picovoice Console” web interface, and I was able to use “Dear Master” within a few minutes on my computer. No need to provide thousands of samples, or wait weeks before getting a custom wake-word. It’s free for personal projects.

  • When and how to evaluate Python annotations

    Annotations in Python came late to the party; they were introduced in Python 3 as a way to attach information to functions describing their arguments and return values. While that mechanism had obvious applications for adding type information to Python functions, standardized interpretations for the annotations came later with type hints. But evaluating the annotations at function-definition time caused some difficulties, especially with respect to forward references to type names, so a Python Enhancement Proposal (PEP) was created to postpone their evaluation until they were needed. The PEP-described behavior was set to become the default in the upcoming Python 3.10 release, but that is not to be; the postponement of evaluation by default has itself been postponed in the hopes of unwinding things.

»

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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