Conda-activate

Activate Conda virtual environments in Vim.

Introduction

Conda-activate picks the inheritance of vim-conda by providing the same features in a Vim9 fashion. It further accommodates changes that conda experienced throughout the years.

Conda-activate sets various environment variables such as $CONDA_DEFAULT_ENV, $CONDA_PREFIX, $PATH, etc., and set the pythonthreehome and pythonthreedll options.

The internal sys.path used by Vim is also set.

This plugin has been tested on Conda 23.3.1 and it work-ish on such a release. Work-ish means that there could be some use-cases where it performs poorly.

Requirements

You need conda and Vim9.

You also need your python environment set properly. Be sure that you get 1 in response to :echo has('python3') and Hello World in response to :python3 print('Hello World').

Caution

Vim shall be started from an activated virtual environment. Don't start Vim from the base environment or from a shell where conda has not been initialized! To be safe, you may consider to add the following in your .basrc/.zshrc/whatever:

conda activate myenv

or to create a .bat file with something like the following content:

@echo off
call C:\Users\yourname\Miniconda3\condabin\activate.bat C:\Users\yourname\Miniconda3\envs\myenv
gvim

if you are a Windows user. For such users, names like Miniconda3, Anaconda, etc. in the list of available virtual environments represent the base environment.

Make sure that the version of Python installed in the virtual environment you use to start Vim matches the version of Python used to compile Vim.

Usage

This plugin has one command CondaActivate that takes one (optional) argument:

:CondaActivate # Show a popup menu
:CondaActivate myenv # Activate myenv without popup menu

It further exposes an autocommand-event named CondaEnvActivated that you can use to perform other actions just after you activated a virtual environment. Here is a simple example on how to use it:

autocmd! User CondaEnvActivated :echom $"{$CONDA_DEFAULT_ENV} activated."

Credits

Thanks to vim-conda that paved the way. I would have never done this plugin without reading (and learning) from vim-conda source code.

Contributing

Feel free to send a PR if have any improvement ideas.
For more info check :h condaactivate.txt.

License

BSD-3 Clause.