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  • Dynamically Regrouping QuerySets In Templates - Building SaaS #73

    In this episode, we worked on a new view to display course resources. While building out the template, I used some template tags to dynamically regroup a queryset into a more useful data format for rendering.

    I started a new view before the stream to display content, but I had not filled it in before the stream started.

    We added new data to the context, and did some adjustments to the URL based on the required inputs for the view.

    Once I had the data, I quickly iterated in the template to see the parts that I included. I needed to display the course resources in a different way from how the queryset provided them so I used the built-in regroup template tag to organize the data differently. regroup saved me from doing a bunch of manipulation in the view code.

  • PyCharm: Webinar: “virtualenv – a deep dive” with Bernat Gabor

    virtualenv is a tool that builds virtual environments for Python. It was first created in September 2007 and just went through a rewrite from scratch. Did you ever want to know what parts virtual environments can be broken down into? Or how they work? And how does virtualenv differ from the Python builtin venv? This is the webinar you want.

  • Python 3.8.6

    This is the sixth maintenance release of Python 3.8

    The Python 3.8 series is the newest major release of the Python programming language, and it contains many new features and optimizations.

  • Python 3.8.6 is now available

    Python 3.8.6 is the sixth maintenance release of Python 3.8.

  • Facial Detection in Python with OpenCV

    Facial detection is a powerful and common use-case of Machine Learning. It can be used to automatize manual tasks such as school attendance and law enforcement. In the other hand, it can be used for biometric authorization.

    In this article, we'll perform facial detection in Python, using OpenCV.

    [...]

    With OpenCV installed, we can import it as cv2 in our code.

    To read an image in, we will use the imread() function, along with the path to the image we want to process. The imread() function simply loads the image from the specified file in an ndarray. If the image could not be read, for example in case of a missing file or an unsupported format, the function will return None.

  • Sending Emails With CSV Attachment Using Python

    In this tutorial, we will learn how to send emails with CSV attachments using Python.

    Pre-Requirements

    I am assuming you already have an SMTP server setup if not you can use the Gmail SMTP or Maligun or anything similar to that.

  • Sending Email With Zip Files Using Python

    In this tutorial, we will learn how to send emails with zip files using Python’s built-in modules.

    Pre-Requirements

    I am assuming that you already have an SMTP (Simple Mail Transfer Protocol ) server setup if not you can use Gmail SMTP or something like mailgun. A simple google search will land you on multiple ways to get free SMTP servers.

  • Is Python better than R for data science?

    If data science is going to remain a main-stream in the next 5 years, it needs to add value not only in terms of proof of concept (as it is doing now) but also in terms of production (as it is failing in over 70% of cases, as Gartner recently surveyed). While R is an absolute winner in terms of classical pattern recognition libraries and statistical methods, python has a better ability to write production-ready codes.

    Above point raises another important point, that is best practices of software engineering (e.g., uml architecture designs, unit testing, coding review, scrum) are going to be absolute requirements in near future for data scientists, in addition to the expected knowledge in machine learning and statistics. The reason is that proper software, production ready, codes require proper architecture design, with proper reviews and testing.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    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.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.