Conda

Generally useful commands

Exporting environments

• conda update --all: update all dependencies in env
• conda env export > environment.yml: export environment Note: use the –no-builds flag if planning to switch to a different operating system.

Installing conda environments from different environments to macos M1

Some conda environment dependencies don’t yet have arm64 support, which necessitates creating an x86 conda environment on macOS.

To do so:

1. Run:

   CONDA_SUBDIR=osx-64 conda create -n myenv_x86 python=3.9
   conda activate myenv_x86
   conda config --env --set subdir osx-64
   

   This new environment will now be able to use dependencies with osx-64 builds.

2. Then to install an existing environment.yml file into the new x86 environment run: conda env update --file environment.yml --prune