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Conda is a cross-platform, language-agnostic binary package manager. It is apackage manager used in conda distributions likeMiniforgeand theAnaconda Distribution, but it may beused for other systems as well. Conda makes environments first-classcitizens, making it easy to create independent environments even for Clibraries. The conda command line interface is written entirely in Python,and is BSD licensed open source.

Conda is enhanced by organizations, tools, and repositories created and managed bythe amazing members of theconda community. Some of themcan be foundhere.

To bootstrap a minimal distribution, use a minimal installer such asMiniconda orMiniforge.

Conda is also included in theAnaconda Distribution.

To updateconda to the newest version, use the following command:

$ conda update -n base conda

$ conda install -n base conda=22.11.1$ conda update conda

If you install the Anaconda Distribution, you will already have hundreds of packagesinstalled. You can see what packages are installed by running:

$ conda list

to see all the packages that are available, use:

$ conda search

and to install a package, use

$ conda install<package-name>

The real power of conda comes from its ability to manage environments.In conda, an environment can be thought of as a completely separate installation.Conda installs packages into environments efficiently usinghard links by default when it is possible, soenvironments are space efficient, and take seconds to create.

The default environment, whichconda itself is installed into, is calledbase.To create another environment, use theconda create command.For instance, to create an environment with PyTorch, you would run:

$ conda create --name ml-project pytorch

This creates an environment calledml-project with the latest version of PyTorch, and its dependencies.

We can now activate this environment:

$ conda activate ml-project

This puts thebin directory of theml-project environment in the front of thePATH,and sets it as the default environment for all subsequent conda commands.

To go back to the base environment, use:

$ conda deactivate

You can easily build your own packages for conda, and upload themtoanaconda.org, a free service for hostingpackages for conda, as well as other package managers.To build a package, create a recipe. Package building documentation is availablehere.SeeAnacondaRecipes for the recipes that make up the Anaconda Distribution anddefaults channel.Conda-forge andBioconda are community-driven conda-based distributions.

To upload to anaconda.org, create an account. Then, install theanaconda-client and login:

$ conda install anaconda-client$ anaconda login

Then, after you build your recipe:

$ conda build<recipe-dir>

you will be prompted to upload to anaconda.org.

To add your anaconda.org channel, or other's channels, to conda sothatconda install will find and install their packages, run:

$ conda config --add channels https://conda.anaconda.org/username

(replacingusername with the username of the person whose channel you wantto add).

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Contributions to conda are welcome. See thecontributing documentationfor instructions on setting up a development environment.