Conda

Create an environment

conda create -n myenv python=3.6 scipy=0.15.0 numpy

Create an environment from an environment file:

conda env create -f environment.yml

You can create the environment file from an existing environment using the command:

conda env export > environment.yml

Exemple of an environment file:

name: myenv
channels:
  - conda-forge
  - anaconda
dependencies:
  - python=3.6
  - bokeh=0.9.2
  - numpy=1.9.*
  - nodejs>=0.10.*
  - conda-forge::matplotlib
  - anaconda::numpy
  - flask
  - pip
  - pip:
    - Flask-Testing
    - package_name==2.3.0
variables:
  PATH: "/example/additional/path:$PATH"

Delete an environment

conda remove --name myenv --all

List the environments

conda info --envs

View the list of packages in an environment

conda list -n myenv

Search for package availables

conda search -f package_name

Install a specific package

conda install [-c channel_name] package_name

Remove a specific package

conda remove [--force] package_name

Use the –force argument to remove only the package without removing its dependencies.

Configure your environment with .condarc

You can get info on your settings using the following command

conda info

To update the default path of the folder where the environments will be created you can edit the envs_dirs variable in your your .condarc using the following syntax: (You may need to update the pkgs_dirs if you don’t have write access to the packages directory)

envs_dirs:
  - ~/.conda/envs  # The first path will be the one chosen by default to create new environments
  - /data/envs

pkgs_dirs:
  - ~/.conda/pkgs

(More infos on condarc here: https://docs.conda.io/projects/conda/en/latest/user-guide/configuration/use-condarc.html)

Sources: