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A package to validate ESM Collection files

Project description

GitHub Workflow Status GitHub Workflow Status PyPI

Earth System Model (ESM)Collection specification Validator

This utility allows users to validate esm-collection json files against the esm-collection-spec.


The validator can be installed in any of the following ways:

Using Pip via PyPI:

python -m pip install esmcol-validator

Using Conda:

conda install -c conda-forge esmcol-validator

Or from the source repository:

python -m pip install git+


$ esmcol-validator --help
Usage: esmcol-validator [OPTIONS] ESMCOL_FILE

  A utility that allows users to validate esm-collection json files against
  the esm-collection-spec.

  --esmcol-spec-dirs TEXT
  --version TEXT           [default: master]
  --verbose                [default: False]
  --timer                  [default: False]
  --log-level TEXT         [default: CRITICAL]
  --help                   Show this message and exit.


$ esmcol-validator sample-pangeo-cmip6-collection.json
{'collections': {'valid': 1, 'invalid': 0}, 'catalogs': {'valid': 1, 'invalid': 0}, 'unknown': 0}
    "collections": {
        "valid": 1,
        "invalid": 0
    "catalogs": {
        "valid": 1,
        "invalid": 0
    "unknown": 0

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