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Development environment

  1. I had git installed since before and is using version 2.39.5 from git --version
  2. I have a repository for this course in GitHub repository
  3. I use mamba which can be installed from Miniforge3

Mamba cheet sheet

  1. Creating empty environment: 

    mamba create -n my_env
    With that command you are creating an empty environment with the name my_env.

  2. Creating environment from environment yaml file: 

    mamba env create -f environment.yml
    With that command is a environment created from the environment environemnt.yml file with the -f flag, indicating that a enviroment should be created from a file. The name of the environment is indicated in the file itself.

  3. List enviroments: 

    mamba env list
    That command gives you a list of all environments installed on your system and the path to where they are installed.

  4. Activate/deactivate enviroments: 

    mamba activate my_env
mamba deactivate
    With the first command you activate a environment called my_env, which has to be in your list of installed environments. The second command you deactivate the environment return you to the base environment.

Editor shortcuts

My workflow when coding actually relay on more than only editor shortcuts. On my personal system I mainly work with tiling window managers, such as i3 or hyprland on Arch linux, btw (xD). I pair this with tmux and neovim to control most of what I want to do to my keyboard. However on my work system I use a MacBook Air, but there are applications that you can install to make the system work as an tiling window manager. I use a application called Aerospace and it can be configured to work similar to i3. which I will talk more about in Homework assignment 3

Neovim

Neovim is a very customizable editor which utilizing the movement from vim and its predecessor vi. Neovim, or for short, nvim have several different modes that you can choose from and each have their own usage

Navigation (Normal mode)

  • l → Move cursor right
  • h → Move cursor left
  • k → Move cursor up
  • j → Move cursor down

You can also use a commands to navigate your code: You enter command mode by pressing :. Below is a list of commands I use to navigate my code:

  • /substring → Searches to the substring that you want to navigate to. If it appears by more than one time in the code you jump to the next instance of it by pressing n
  • num → Jumps to line num where num is an integer

Editing: The next mode is the Insert mode which is for writing and editing code. You get into that mode by pressing i and return to normal mode again by pressing Esc. If you want to perform a multiline edit you can do so by first enter Visual Blocke mode with Ctrl + v you then can select where you want to edit by vim navigation then by pressing I you gone in to insert mode for the block you have chosen. You can then write what you want to have in that block and escape with Esc by writing everything in that block.

You can also do search and replace, the way I usually do it is by first enter into Visual line mode with Shift + v I then choose the lines where I want to make the search and replacement by navigating with vim navigaton. I when enter command mode with : and make the following for the example where I want to replace foo with bar

  • s/foo/bar/g → Searches the visual block I have selected for foo and replace it with bar

I sometimes also do this without selecting in Visual line mode and this can be done with a command

  • .,$s/foo/bar/g → Searches from where the cursor is located to the end of the file and replaces foo with bar

To save and quit nvim you do this from commands, which is opened with :

  • w → Write to file
  • wa → Write to all files in all buffers
  • wqa → Write to all files in all buffers and quit nvim

Plugins: nvim have a multitude of very helpful plugins, written mainly in lua. Many of them are for aesthetics, such as color schemes. However, there are many extremely helpful plugins which I use that speeds up my workflow. One of them are for example linters and formatters. In my configuration for nvim I have setup that I have a specal key that I use as a prefix, called a Leader. Mine is Spacebar. For my linting and formatting I use the very strict linter pylint for my linting and ruff for formatting in Python. See below shortcuts:

  • Leader gf → Formats my code with ruff
  • Leader ca → Gives me code actions, where I get a list of actions, I can for example format my imports and other things.

I Also have a very useful plugin to navigate between files called Telescope. This plugin utilizes fuzzy search to find files. See below for shortcuts

  • Leader Leader &rarr, Opens up a list with previous opened files with a preview og the content
  • Ctrl + p → Lists all the files in the current working directory

Update

Since this course I started using uv exclusively when working with Python projects, except when working with PyARTS, since it requires me to install via conda.