Published in Python in Plain English·Mar 4Python Classes and Objects in Depth: A Complete GuideA comprehensive guide on classes and objects in Python for beginners. — We can think of classes as blueprints for objects. Various object instances can be created based on one class blueprint and attributes as well as functionalities defined in the class blueprint will be passed as object properties after the object instance has been created. Classes are callable and whenever we…Python20 min read
Feb 12SSH public key authentication on a Ubuntu Linux SystemSSH public key authentication on a Ubuntu Linux System I have a new Linux server in front of me and I am able to login with user and password using ssh (Password Authentication). But before I login the first time I open the terminal on my local machine and create the ssh keys . PatrickMBNeu:~ patrick$ ssh-keygen -t rsa…5 min read
Published in Python in Plain English·Oct 21, 2021How to Install New Versions of Python on macOS Big Sur Using HomebrewHow to Install New Versions of Python on macOS Big Sur Using Pyenv Python 2 comes pre-installed with macOS. Python 2 is required by the operating system and managed by macOS. This system Python should never be touched. System Python is installed in the /usr/bin directory which is owned by root. This means all files and symlinks in the /usr/bin directory are system…Python6 min read
Published in JavaScript in Plain English·May 2, 2021Role Based Access Control using express-session in a Node.js appIn this article I refer to an application I created a couple of months ago. It’s about a booking system with which players can book ice-hockey trainings in different locations, the coach can confirm participation in a training session and a club manager can organize training sessions and bill the…Nodejs27 min read
Published in JavaScript in Plain English·Mar 19, 2021Create a Simple Blog App with Node.js and ExpressIn Part 1 of my Node.js series we have learned how to build a web server with Node.js on-board resources. Lastly we installed the Express module and configured simple routes as application end points that respond to http client requests. In this Part 2 I would like to take a…Nodejs27 min read
Mar 16, 2021How to add a Mac OS User to sudoersWhen I set up my Mac I configured first the Admin-User and then I created a new Standard-User for the daily work. On my Mac I have the Admin-User AdminPR and the Standard-User patrick. …Mac Os Big Sur2 min read
Mar 15, 2021How to setup Homebrew on Mac OSMost of the Mac OS users install software via the Apple App store or download a .dmg file from the Internet and and copy the app into the Applications directory or run an installation script to install the software on the Mac. Another way to install software on your Mac…Homebrew5 min read
Published in Python in Plain English·Mar 13, 2021How to manage different Python Versions on Mac OS 11 Big SurBefore you go on reading this article ensure that Homebrew is installed on your Mac. There are installation instructions on my blog digitaldocblog.com or you can just go to the Homebrew website and follow the instructions there. But first of all I would like to describe my initial situation. I…Mac Os Big Sur6 min read
Apr 6, 2020Node.js series Part 1. Create a Simple Web-Server with Node.jsIn this part 1 of my node.js series I briefly explain the creation of a simple node.js web-server that respond to various http requests. I explain the basics of Node.js and install the Express.js framework so that it can be used by the simple web-server. This Article was originally published…Java Script20 min read
