Interview – NXP Linux BSP and Timesys Vigiles Maintenance Service & Security Updates

I’ve been interviewing Ed White, Manager of NXP’s Professional Support and Engineering Services, and Akshay Bhat, Director of Engineering, Security Solutions at Timesys by email to find out more about NXP Linux BSP development process, and how Timesys can help to keep it updated and secure with its Vigiles service.

Screen Zoom and Mouse Indicator on Ubuntu 20.04

Ubuntu can help you to enlarge screen items and easily display cursor movements to your audience. This article is a company to Focal For Teachers and continuation to Screen Zoom on KDE. This is practicable to every GNOME operating system not only Ubuntu but also Fedora, Red Hat, Zorin and others. You can watch practical examples in this new video below and also image editing videos I published recently. For teachers and tutorial makers, this article is for you. Enjoy!

Python Programming

• Find the coefficients of the Quadratic Equation of the given two roots with Python

  In this example, you are expected to find the coefficients of the quadratic equation of the given two roots (x1 and x2) with a python function. The Quadratic Equation looks like this ax^2 + bx + c = 0. Our mission is to find the coefficients of the equations which is a, b, and c. The return type from the function is a Vector containing coefficients of the equations in the order (a, b, c). Since there are infinitely many solutions to this problem, we fix a = 1. Below is the method to find the return Vector.

• Episode #188: Will the be a "switch" in Python the language?

• Python 3.9.0b4

  Python 3.9 is still in development. This release, 3.9.0b4, is the fourth of five planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release.

• Python 3.9.0b4 is now ready for testing

  On behalf of the entire Python development community, and the currently serving Python release team in particular, I’m pleased to announce the release of Python 3.9.0b4.

• 10 most useful Python Dictionary Methods

  Dictionary is used in python to store multiple data with key-value pairs. It works like an associative array of other programming languages. The curly ({}) brackets are used to define a dictionary and the key-value is defined by the colon(:). The content of the key and value can be numeric or string. Python has many built-in methods to do different types of tasks on the dictionary data such as add, update, delete, search, count, etc. 10 most useful dictionary methods of python are explained in this article.

• 10 most useful Python String Methods

  The string data is the characters of an array that contains one or more characters as value for any programming language. All printable characters such as alphabets, numbers, special characters, etc. are commonly used in the string data. ASCII code and Unicode are mainly used for converting any character to a number that the computer can understand. Python uses Unicode characters for string data. We need to perform different types of tasks based on the programming purpose on the string data such as searching the particular character or characters, capitalizing the first character, making all characters uppercase, etc. Python has many built-in string methods to do these types of tasks very easily. The 10 most useful python string methods are explained in this article.

Shell/Bash Picks

• Understanding Variables in Bash Shell Scripting

  You must have played with variables quite a bit if you did any sort of programming. If you never worked with variables before, you can think of them as a container that stores a piece of information that can vary over time. Variables always come in handy while writing a bash script and in this tutorial, you will learn how to use variables in your bash scripts.

• How to clear bash history

• How to delete a file in bash

• How to check Ubuntu version in bash