Conda

Concepts

  • Conda

    Package manager

  • Anaconda

    A pre-built distribution of Python and other packages for data science

Cheatsheet

Set up shell environment

# e.g. conda init bash or conda init zsh
# This will append the conda initialization script into the end of your .bashrc or .zshrc file.
conda init $shell_name

Display info about conda

# Display info about conda
conda info

Create an environment by importing an environment definition file

conda env create -f $env_yaml

Create an environment with specified Python version

# Create a new environment
conda create -n $env_name python=$python_version

List all environments

conda env list

Example:

> conda env list
# conda environments:
#
                       C:\Users\Takechiyo\scoop\apps\miniconda3\25.7.0-2
base                 * C:\Users\Takechiyo\scoop\apps\miniconda3\current
deltalake-minimal      C:\Users\Takechiyo\scoop\apps\miniconda3\current\envs\deltalake-minimal
python                 C:\Users\Takechiyo\scoop\apps\miniconda3\current\envs\python

Determine the current active environment

# The active environment is labelled with asterisk.
conda env list

Activate an existing environment

# Activate the environment
conda activate $env_name

Deactivate the current environment

conda deactivate

Remove all packages in an environment

The environment must be deactivated first.

conda deactivate
conda remove -n $env_name --all --keep-env

Install a package in an environment

conda install -n $env_name "$package_name=$version"

Determine Python version of an environment

conda list -n $env_name -f python

Change Python version of an existing environment

conda install -n $env_name python=$python_version

Display dependencies of an environment

conda list -n $env_name

Export an environment to an environment definition file

conda export -n $env_name -f $env_yaml

Remove an environment

conda env remove -n $env_name

Reference

麻婆豆腐Assembly