pyenv VS SDKMan

Personally, I’m a big fan of pyenv, so that’s what I’ll be using here. I’ve already got it installed on my laptop since it’s my go-to for work and personal projects.

PyFabricate queries pyenv for the developer installed Python versions. These are the only ones from which PyFabricate can create Python virtual environments.

We actively use environment managers pyenv, goenv and nvm for managing multiple versions of Python, Golang and NodeJS at Mantis. These provide us with an easily manageable, robust development environments.

Management of different language versions and interpreters is somewhat of a gray area in the Pythonic world as of September 2024, but of course the community has "unofficial" solutions that circumvent this problem. One particular good one is PyEnv, that borrows heavily from ruby's solutions for version management, which is something ruby does very well. PyEnv is basically a collection of shell scripts that help to install and select a specific python version or interpreter, in both global and localized scopes. It works by inserting a directory of shims in the PATH and will rehash the shim according to specific conditions in order to map the python binary (as well as other setup such as mapping pip, switching the PYTHON_VERSION env, etc). This guide will focus on MacOS and the Debian-family linux distros, and will cover setup on both bash and zsh. It will not cover pyenv-win.

In the case of pre-commit hooks, the runtime either has to be installed manually by every user (in the case of Husky) or is handled in Python (in the case of pre-commit). Running Node.js through Python/pyenv introduces an additional layer of complexity, which can lead to issues like OpenSSL library incompatibilities.

Install pyenv or pyenv-win

Let's get some initial setup out of the way, starting by an empty directory and a virtual environment. Create a new directory with any name you like, and a virtual environment with your preferred tool. I personally use Pyenv. It is worth noting that this tutorial was created with Python 3.11.3, and SQLAlchemy version 2.0.27.

If you have a requirement for multiple, specific Python versions, why not just use pyenv?

https://github.com/pyenv/pyenv

For more information visit: pyenv repository

I used sdkman for switching between multiple Java versions, and in this case I used java 17.0.12. For the Flutter version, I used fvm and used flutter 3.24.0 on this project.

The reason I picked this issue is because the project was in Java. I've wanted to work with Java for a while because despite it's popularity I haven't had much exposure to it. Meaning with this issue, I was working in a completely new language ecosystem. Luckily, the very week before, I'd started learning a bit of Java on the side. I still had to learn some tricks, like managing installations of different versions of Java and Gradle - SDKMAN! really came in clutch here, but to use this tool I had to work in WSL, because it only supports Linux, which meant I did have to figure out how to set up IntelliJ in WSL, but that was fine with me because my existing development setup for JavaScript is already entirely WSL-based.

Install SDKMAN

On Linux and macOS: SDKMAN! is a SDK manager specialzed in the Java ecosystem. Instructions on how to manage JDKs is provided here.

I use https://sdkman.io/ to manage JVM versions, have you tried that? I haven't used Cursive, maybe it does something weird, but in general IntelliJ seems to accept it just fine in my everyday work.

I would suggest learning how to use SDKMAN: https://sdkman.io/

It will manage the JDK for you. Usage is basically this:

   # Install a JDK, that version is now default

Alternatively, you can use sdkman. A great tool to install your Software Development Kit. The downside is that it only works on *nix systems. So for Widnows users, you will have to use WSL or Cygwin as the official page suggests. It is really simple to use sdkman. after a successful installation, just type those commands into your *nix shell:

To run the example, you must install the Auth0 CLI and create an Auth0 account. If you don't have an Auth0 account, sign up for free. I recommend using SDKMAN! to install Java 17+ and HTTPie for making HTTP requests.