Concepts

conda package

A conda package is a compressed tarball file (.tar.bz2) or .conda file

It contains:

• system-level libraries.
• Python or other modules.
• executable programs and other components.
• metadata under the info/ directory.
• a collection of files that are installed directly into an install prefix.

conda channels

Conda channels are the locations where packages are stored.

They serve as the base for hosting and managing packages.

conda environments

A conda environment is a directory that contains a specific collection of conda packages that you have installed.

Commands

Package

Search

$ conda search <package_name>  [--info]

$ conda search python

$ conda search --full-name python

$ conda search --override-channels --channel defaults scipy

Install

$ conda install --name <env_name> <package_name>

$ conda install <package_name> # current environment

$ conda install [--channel <channel_name>] <package_name>

$ conda install -c <package_name> # from Anaconda.org

$ conda install "PKGNAME[version='3.1.2|3.1.4']"

$ conda install "PKGNAME>2.5,<3.2"

List

$ conda list

$ conda list --name <env_name>

$ conda list --revisions

Info

$ conda info <package_name>

Update

$ conda update <package_name | python | conda >

$ conda update --all --name <env_name>

$ conda uninstall -n <env_name> <package_name> [...<package_name>]

Clean

$ conda clean --all

Channel

Add

$ conda config --add channels <new_channel>

Environment

Create

$ conda create --name <env_name>

$ conda create -n <env_name> python=3.9

$ conda create -n <env_name> pandas=1.3

$ conda create -n <env_name> python=3.9 scipy=0.15.0 astroid babel

$ conda create --no-default-packages -n <env_name> python

$ conda create --prefix ./envs jupyterlab=0.35 matplotlib=3.1 numpy=1.16

Activate & Deactivate

$ conda activate <env_name>

$ conda activate ./envs

$ conda deactivate

Info

$ conda info --envs

$ conda env list

File

$ conda env create -f environment.yml

Update

$ conda env update --prefix ./env --file environment.yml  --prune

Cloning

$ conda create --name <env_name> --clone <new_env_name>

Configuration

Conda configuration

$ conda config --add channels <channel_name>

$ conda config --describe <key>

$ conda config --set <key> <value>
$ conda config --set ssl_verify false

$ conda config --show

$ conda config --show-sources

Conda

$ conda info

$ conda --version

$ conda update -n base conda

$ conda --help