pixi is a cross-platform, multi-language package manager and workflow tool built on the foundation of the conda ecosystem. It provides developers with an exceptional experience similar to popular package managers like cargo or yarn, but for any language.
Developed with ❤️ at prefix.dev.
Pixi is ready for production! We are working hard to keep file-format changes compatible with the previous versions so that you can rely on Pixi with peace of mind.
Some notable features we envision for upcoming releases are:
pixi can be installed on macOS, Linux, and Windows. The provided scripts will automatically download the latest version of pixi, extract it, and move the pixi binary to ~/.pixi/bin. If this directory does not exist, the script will create it.
To install Pixi on macOS and Linux, open a terminal and run the following command:
curl -fsSL https://pixi.sh/install.sh | sh # or with brew brew install pixi
The script will also update your ~/.bashrc to include ~/.pixi/bin in your PATH, allowing you to invoke the pixi command from anywhere. You might need to restart your terminal or source your shell for the changes to take effect.
Starting with macOS Catalina zsh is the default login shell and interactive shell. Therefore, you might want to use zsh instead of bash in the install command:
curl -fsSL https://pixi.sh/install.sh | zsh
The script will also update your ~/.zshrc to include ~/.pixi/bin in your PATH, allowing you to invoke the pixi command from anywhere.
To install Pixi on Windows, open a PowerShell terminal (you may need to run it as an administrator) and run the following command:
powershell -ExecutionPolicy ByPass -c "irm -useb https://pixi.sh/install.ps1 | iex"
Changing the execution policy allows running a script from the internet. Check the script you would be running with:
powershell -c "irm -useb https://pixi.sh/install.ps1 | more"
The script will inform you once the installation is successful and add the ~/.pixi/bin directory to your PATH, which will allow you to run the pixi command from any location. Or with winget
winget install prefix-dev.pixi
To get autocompletion follow the instructions for your shell. Afterwards, restart the shell or source the shell config file.
Bash (default on most Linux systems)Add the following to the end of ~/.bashrc:
# ~/.bashrc eval "$(pixi completion --shell bash)"
Add the following to the end of ~/.zshrc:
# ~/.zshrc eval "$(pixi completion --shell zsh)"PowerShell (pre-installed on all Windows systems)
Add the following to the end of Microsoft.PowerShell_profile.ps1. You can check the location of this file by querying the $PROFILE variable in PowerShell. Typically the path is ~\Documents\PowerShell\Microsoft.PowerShell_profile.ps1 or ~/.config/powershell/Microsoft.PowerShell_profile.ps1 on -Nix.
(& pixi completion --shell powershell) | Out-String | Invoke-Expression
Add the following to the end of ~/.config/fish/config.fish:
# ~/.config/fish/config.fish pixi completion --shell fish | source
Add the following to your Nushell config file (find it by running $nu.config-path in Nushell):
mkdir $"($nu.data-dir)/vendor/autoload" pixi completion --shell nushell | save --force $"($nu.data-dir)/vendor/autoload/pixi-completions.nu"
Add the following to the end of ~/.elvish/rc.elv:
# ~/.elvish/rc.elv eval (pixi completion --shell elvish | slurp)
You can install pixi from the extra repository using pacman:
pixi is available for Alpine Edge. It can be installed via apk after enabling the testing repository.
pixi is 100% written in Rust and therefore it can be installed, built and tested with cargo. To start using pixi from a source build run:
cargo install --locked --git https://github.com/prefix-dev/pixi.git pixi
We don't publish to crates.io anymore, so you need to install it from the repository. The reason for this is that we depend on some unpublished crates which disallows us to publish to crates.io.
or when you want to make changes use:
If you have any issues building because of the dependency on rattler checkout it's compile steps
To uninstall, the Pixi binary should be removed. Delete pixi from the $PIXI_DIR which is default to ~/.pixi/bin/pixi
So on Linux its:
and on Windows:
$PIXI_BIN = "$Env:LocalAppData\pixi\bin\pixi"; Remove-Item -Path $PIXI_BIN
After this command you can still use the tools you installed with pixi. To remove these as well just remove the whole ~/.pixi directory and remove the directory from your path.
The cli looks as follows:
➜ pixi
Pixi [version 0.50.1] - Developer Workflow and Environment Management for Multi-Platform, Language-Agnostic Workspaces.
Pixi is a versatile developer workflow tool designed to streamline the management of your workspace's dependencies, tasks, and environments.
Built on top of the Conda ecosystem, Pixi offers seamless integration with the PyPI ecosystem.
Basic Usage:
Initialize pixi for a workspace:
$ pixi init
$ pixi add python numpy pytest
Run a task:
$ pixi task add test 'pytest -s'
$ pixi run test
Found a Bug or Have a Feature Request?
Open an issue at: https://github.com/prefix-dev/pixi/issues
Need Help?
Ask a question on the Prefix Discord server: https://discord.gg/kKV8ZxyzY4
For more information, see the documentation at: https://pixi.sh
Usage: pixi [OPTIONS] <COMMAND>
Commands:
add Adds dependencies to the workspace [aliases: a]
auth Login to prefix.dev or anaconda.org servers to access private channels
build Workspace configuration
clean Cleanup the environments
completion Generates a completion script for a shell
config Configuration management
exec Run a command and install it in a temporary environment [aliases: x]
global Subcommand for global package management actions [aliases: g]
info Information about the system, workspace and environments for the current machine
init Creates a new workspace
import Imports a file into an environment in an existing workspace.
install Install an environment, both updating the lockfile and installing the environment [aliases: i]
list List workspace's packages [aliases: ls]
lock Solve environment and update the lock file without installing the environments
reinstall Re-install an environment, both updating the lockfile and re-installing the environment
remove Removes dependencies from the workspace [aliases: rm]
run Runs task in the pixi environment [aliases: r]
search Search a conda package
self-update Update pixi to the latest version or a specific version
shell Start a shell in a pixi environment, run `exit` to leave the shell [aliases: s]
shell-hook Print the pixi environment activation script
task Interact with tasks in the workspace
tree Show a tree of workspace dependencies [aliases: t]
update The `update` command checks if there are newer versions of the dependencies and updates the `pixi.lock` file and environments accordingly
upgrade Checks if there are newer versions of the dependencies and upgrades them in the lockfile and manifest file
upload Upload a conda package
workspace Modify the workspace configuration file through the command line
help Print this message or the help of the given subcommand(s)
Options:
-V, --version Print version
Global Options:
-h, --help Display help information
-v, --verbose... Increase logging verbosity (-v for warnings, -vv for info, -vvv for debug, -vvvv for trace)
-q, --quiet... Decrease logging verbosity (quiet mode)
--color <COLOR> Whether the log needs to be colored [env: PIXI_COLOR=] [default: auto] [possible values: always, never, auto]
--no-progress Hide all progress bars, always turned on if stderr is not a terminal [env: PIXI_NO_PROGRESS=]
Initialize a new project and navigate to the project directory
pixi init myproject
cd myproject
Add the dependencies you want to use
Run the installed package in its environment
pixi run cowpy "Thanks for using pixi"
Activate a shell in the environment
pixi shell cowpy "Thanks for using pixi" exitInstalling a conda package globally
You can also globally install conda packages into their own environment. This behavior is similar to pipx or condax.
pixi global install cowpy
You can use Pixi in GitHub Actions to install dependencies and run commands. It supports automatic caching of your environments.
- uses: prefix-dev/setup-pixi@v0.8.1 - run: pixi exec cowpy "Thanks for using pixi"
See the documentation for more details.
We would absolutely love for you to contribute to Pixi! Whether you want to start an issue, fix a bug you encountered, or suggest an improvement, every contribution is greatly appreciated.
If you're just getting started with our project or stepping into the Rust ecosystem for the first time, we've got your back! We recommend beginning with issues labeled as good first issue. These are carefully chosen tasks that provide a smooth entry point into contributing.These issues are typically more straightforward and are a great way to get familiar with the project.
Got questions or ideas, or just want to chat? Join our lively conversations on Discord. We're very active and would be happy to welcome you to our community. Join our discord server today!
To see what's being built with pixi check out the Community page.
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