macOS - Installation Using Pyenv

1. Pyenv and Python Installation

Use homebrew to install pyenv (see here for more information on homebrew).

  • Run

    brew update
brew install pyenv

    to install pyenv.

  • You need Xcode command line tools

    xcode-select --install

  • Then install dependencies

    brew install openssl readline sqlite3 xz zlib

2. Python Installation

  • Restart terminal

  • Type in to the terminal

    pyenv install <python_version>

    for example pyenv install 3.11.3.
    <python_version> is the Python version you want to install (3.11.3 or higher is suggested for NOMAD-CAMELS).

3. Install CAMELS

  • Create a folder where you want to install CAMELS (e.g. \NOMAD-CAMELS\)

  • Type in your powershell cd \NOMAD-CAMELS\;pyenv local <python_version>

  • If you have a working Python environment (python -V in /NOMAD-CAMELS/ returns <python_version>) then you can continue to install CAMELS.

  • Now run the command python -m venv .desertenv in this folder to create a virtual Python environment (using the Python version given by pyenv local <python_version>)

  • Now activate the environment with .\.desertenv\Scripts\activate

  • Now type

  • pip install nomad-camels

    to install CAMELS.

4. Run CAMELS

You can then run

nomad-camels

or

python -m nomad_camels

to start CAMELS.

If this does not work for you you can go to /.desertenv/Lib/site-packages/nomad_camels/ and run CAMELS using

python .\CAMELS_start.py

or run:

python ./desertenv/lib/python<version>/site-packages/nomad_camels/CAMELS_start.py