Install Anaconda for your operating system.
Create a virtual environment for your project
The default directory for conda env is:
Create env: Either use the GUI app or con the terminal:
conda create -n yourenvname python=x.x or
conda create -f=/path/to/environment.yml python=x.x
Activate it on macOS and Linux:
source activate yourenvname
Deactivate your virtual environment:
conda remove -n yourenvname -all
Show all env:
conda env list
List packages in an environment:
- If the environment is not activated, in your Terminal window or an Anaconda Prompt, run:
conda list -n myenv
- If the environment is activated, in your Terminal window or an Anaconda Prompt, run:
Install additional Python packages to a virtual environment:
conda install -n yourenvname [package]
Sharing an environment
You may want to share your environment with someone else—for example, so they can re-create a test that you have done. To allow them to quickly reproduce your environment, with all of its packages and versions, give them a copy of your
Exporting the environment file
NOTE: If you already have an environment.yml file in your current directory, it will be overwritten during this task.
- Activate the environment to export:
source activate myenv
- Export your active environment to a new file:
conda env export > environment.ymlNOTE: This file handles both the environment’s pip packages and conda packages.
- Email or copy the exported environment.yml file to the other person.
Building identical conda environments
conda list --explicitto produce a spec list of packages installed
- To create this spec list as a file in the current working directory, run:
conda list --explicit > spec-file.txt
Note: An explicit spec file is not usually cross platform, and therefore has a comment at the top such as # platform: osx-64 showing the platform where it was created. This platform is the one where this spec file is known to work. On other platforms, the packages specified might not be available or dependencies might be missing for some of the key packages already in the spec.
To use the spec file to create an identical environment on the same machine or another machine:
conda create --name myenv --file spec-file.txt
To use the spec file to install its listed packages into an existing environment:
conda install --name myenv --file spec-file.txt
Using pip in an environment
To use pip in your environment, in your Terminal window or an Anaconda Prompt, run:
conda install -n myenv pip
source activate myenv