Why should you use a Jenkinsfile? The biggest advantage of a Jenkinsfile is the ability to use version control to manage your build system. When you use freestyle jobs you can loose you configuration due to limit history depth. Descriptive vs Scripted Jenkinsfiles come in two flavours: Declarative pipelines always begin with the word pipeline…
Sometimes you want to delete a folder in Python. You know that os.rmdir() can do that for you. But then you realize it can only remove empty folders. If you want to remove the content before deleting the folder you come up with: def remove_non_empty_dir(path_to_dir): if os.path.exists(path_to_dir): files_in_dir = os.listdir(path_to_dir) for file in files_in_dir: os.remove(os.path.join(path_to_dir,…
I’ve written a piece about logging Log4j2 for Kotlin and the motivation to use logging in Python is the same: Logging is a common good practice in software engineering. It enables you to monitor applications in production to gather information about crashes and other malfunctions for further analysis. It is the “little brother” of debugging…
It started with a simple question from my apprentice: “How can I remember more of the stuff I need to learn?” My simple answer: “Write about it!” An hour later I had finished ranting about why writing is such a crucial skill when becoming a software engineer. tl;dr; Writing fosters learning. Writing clears your mind.…
Motivation Over the years I gathered some nice books about space exploration, rocketry and space in general. The List To Space and Back Endurance: My Year in Space, A Lifetime of Discovery Von Braun: Dreamer of Space, Engineer of War Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future Flying to the Moon:…
Foundation Annotated Turing Statistics For Dummies The Practically Cheating Statistics Handbook Artificial Intelligence: A Modern Appoach Prediction & Data Science The Signal and the Noise: The Art and Science of Prediction The Elements of Statistical Learning: Data Mining, Inference, and Prediction Philosophical Hello World: How to be Human in the Age of the Machine The…
Determine the file extension os.path.splitext() is used to split the path name into a pair root and ext. e.g. C:\Users\memyselfandi\projects\file_extension_test\data.csv is split into C:\Users\memyselfandi\projects\file_extension_test\data and .csv Here is a working snippet for identifying CSV and XLS: import os if os.path.isfile(input_file): file_extension = os.path.splitext(input_file)[1].lower() if file_extension == “.csv”: logger.info(“It’s a CSV”) # do something with CSV…
I really like SQL. But sometimes I struggle to undestand some of the concepts. So I write about it. Meanwhile there are a bunch of articles, so time for a overview page: SQL-Basics: Create, Read, Update & Delete SQL-Basics: Relations SQL-Functions – SQL-Basics 3 SQLite3: Python and SQL Subqueries: Update column with values from another…
This article is a guest post from Caroline Riekert Motivation There are a lot of reasons to use Dependency Injection, or even a Framework for it. In this Article you’ll learn what Dependency Injection is, what benefits and downsides it has and how to use it with the usage of the Koin Framework. Let’s look…
These little “life hacks” saved me a lot of trouble Never leave your flat / house without your keys Kids can lock you out when you just bring out the trash, wind can blow the door shut. Do it even when your partner pretends to have a key on his/her own 🙂 Stow away spare…