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Conda cheat sheet

Managing Conda, Miniconda, and Anaconda, Environments, Python, Configuration, Packages. Removing Packages or Environments

Install Miniconda

Install locally in a silent mode on linux-64

wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda.sh
bash ~/miniconda.sh -b -p $HOME/miniconda

Install in jupyter notebook on Google Colab

%%bash
MINICONDA_INSTALLER_SCRIPT=Miniconda3-latest-Linux-x86_64.sh
MINICONDA_PREFIX=/usr/local
wget https://repo.continuum.io/miniconda/$MINICONDA_INSTALLER_SCRIPT
chmod +x $MINICONDA_INSTALLER_SCRIPT
./$MINICONDA_INSTALLER_SCRIPT -b -f -p $MINICONDA_PREFIX

Install and update conda packages

%%bash
conda install --channel defaults conda python=3.9 --yes
conda update --channel defaults --all --yes

Check conda and python version

!conda --version 
!python --version 

Managing Conda, Miniconda, and Anaconda

conda --version Check conda version

conda info Verify conda is installed, check version

conda update conda Update conda package and environment manager

conda update anaconda Update the anaconda meta package

conda update --all Update all packages in the environment

conda update --all -y Update all packages in the environment

Managing Environments

conda info --envs Verify environment you are right now

conda info -e Get a list of all my environmentsActive environment shown with *

conda create --name snowflakes biopython

conda create -n snowflakes biopython Create an environment and install program(s)

conda activate snowflakes Activate the new environment to use it

conda deactivate Deactivate the environment

conda create -n bunnies python=3.9 astroid Create a new environment, specify Python version

conda create -n foo instrain awscli samtools python=3.8 Create a new environment with a set of packages and specific version of Python

conda create -n flowers --clone snowflakes Make exact copy of an environment

conda remove -n flowers --all Delete an environment

conda env list List all envs

conda env export > env.yml Save the current Package-specific environment to a file

conda env export --file env.yml Saving an entire environment to a file

conda env export --from-history > env.yml Save the current Cross-platform compitible environment to a file

conda env create -f env.yml Load the Package-specific environment from a file

conda env update -n coolbase --file environment.yml install and/or update packages from environment.yml

conda env remove --name bamqc Remove Virtual Environment

CONDA_SUBDIR=osx-arm64 conda create -n test_env --dry-run python=3.8 llvm-openmp cython numpy pip "matplotlib-base>=3.0.3" "protobuf >=3.11.2,<4.0.0" "scipy >=1.3.2,<2.0.0" Conda dry run environment on a specific platform

for py in 3.8 3.9 3.10; do echo -e "\n***** python $py *****"; conda create --dry-run --quiet -n __test__ python=$py pandas=1.4.2; done Conda dry run creating an environment and installing packages (pandas 1.4.2) for different python versions

Managing Python

conda search --full-name python

conda search -f python Check versions of Python available to install

conda search ipython=8.3.0 --info | sed '/file name/,/timestamp/d' For quick checking package dependencies (for example, for all python versions)

conda create -n snakes python=3.4 Install different version of Python in new environment

Managing .condarc Configuration

conda config --get Get all keys and values from my .condarc file

conda config --get channels Get value of the key channels from .condarc file

conda config --show channels Knowing the active channels

conda config --add channels pandas Add a new value to channels so conda looks for packages in this location

conda config --add channels defaults Adding a default channel

conda config --add channels conda-forge Adding a channel

conda config --add channels bioconda Adding a channel

conda config --set anaconda_upload yes Enable uploading to Anaconda Cloud

conda config --set anaconda_upload no Disable uploading to Anaconda Cloud

conda config --set auto_activate_base false Deactivating the activation of the base environment in Python

Managing Packages, Including Python

conda list View list of packages and versions installed in active environment

conda list | grep pandas Search package in the list

conda list --show-channel-urls List all installed packages along its channels

conda list --export > env.txt Save to a Requirements file all packages in an environment

conda list > env.txt Save a package list an a file

conda search beautiful-soup Search for a package to see if it is available to conda install

conda search -c conda-forge black Search Alternate Channels specify different channels as well, with the use of the -c flag

conda search conda-forge::black Search Alternate Channels

conda install -n bunnies beautiful-soup Install a new package NOTE: If you do not include the name of the environment, it will install in the current active environment.

conda update beautiful-soup Update a package in the current environment

conda search --override-channels -c pandas bottleneck Search for a package in a specific location (the pandas channel on Anaconda.org)

conda install -c conda-forge black Installing black from the conda-forge channel

conda install -c pandas bottleneck Install a package from a specific channel

conda install scipy --channel conda-forge --channel bioconda Specifying multiple channels when installing a package

conda search --override-channels -c defaults beautiful-soup Search for a package to see if it is available from the Anaconda repository

conda install iopro accelerate Install commercial Continuum packages

conda install black isort flake8 install python linter

conda install conda-build Install conda-build

conda install matplotlib=1.4.3 Install a certain package version

conda install m2-patch posix Windows only

conda install --use-local click

conda skeleton pypi pyinstrument

conda build pyinstrument Build a package from a Python Package Index (PyPi) Package

Removing Packages or Environments

conda remove --name bunnies beautiful-soup Remove one package from any named environment

conda remove beautiful-soup Remove one package from the active environment

conda remove --name bunnies beautiful-soup astroid Remove multiple packages from any environment

conda remove --name snakes --all Remove an environment (remove all packages)

conda uninstall packagename Remove one package. Alias for conda remove

conda clean --all Delete unused packages and caches

Conda World

Anaconda Cloud

anaconda login Login in to Anaconda Cloud

anaconda upload C:\ProgramData\Anaconda3\conda-bld\win-64\conda_gc_test-1.2.1-3.tar.bz2 Upload artifact for win64 to your own channel in Anaconda Cloud

anaconda upload my-notebook.ipynb Upload my-notebook.ipynb to http://notebooks.anaconda.org/<USERNAME>/my-notebook

conda-build

conda-build . Build a recipe from the current folder

conda build --test /home/user/miniconda3/conda-bld/noarch/pytest-cov-2.12.1-py_0.tar.bz2 test the package in your environment (for regression testing)

conda build gdal-feedstock

conda build sep

conda-build --python 2.7 click

conda build gdal-feedstock --variant-config-file conda_build_config.yaml

conda convert

conda convert --platform all ~/anaconda/conda-bld/linux-64/click-7.0-py37_0.tar.bz2 -o outputdir/

conda convert package-1.0-py33.tar.bz2 -p win-64

conda sekeleton

conda skeleton pypi --pypi-url <mirror-url> package_name

conda skeleton pypi <package name on pypi>

conda skeleton pypi click

conda skeleton pypi --recursive pyinstrument

conda + jake

conda install -y conda-forge::jake && conda list | jake ddt A helpful oneliner to check your conda environments for vulnerable Open Source packages

conda + boa + mambasolver

conda install boa -c conda-forge Install boa. Use the mamba solver through mambabuild. It not only has a faster solve speed but also prints better error messages that make debugging simpler.

conda mambabuild . build the recipe with mambasolver

conda mambabuild myrecipe build the recipe with mambasolver