xarray-schema
Schema validation for Xarray
installation
This package is in the early stages of development. Install it from source:
pip install git+git://github.com/carbonplan/xarray-schema
usage
Xarray-schema's API is modeled after Pandera. The DataArraySchema and DatasetSchema objects both have .validate() methods.
The basic usage is as follows:
import numpy as np
import xarray as xr
from xarray_schema import DataArraySchema, DatasetSchema
da = xr.DataArray(np.ones(4, dtype='i4'), dims=['x'], name='foo')
schema = DataArraySchema(dtype=np.integer, name='foo', shape=(4, ), dims=['x'])
schema.validate(da)
roadmap
This is a very early prototype of a library. Some key things are missing:
- Validation of
coords,chunks, andattrs. None of these are implemented yet. - Class-based schema's for parts of the Xarray data model. Most validations are currently made as direct comparisons (
da.name == self.name) but a more robust approach is possible that leverages classes for each component of the data model. We're already handling some special cases usingNoneas a sentinel value to allow for wildcard-like behavior in places (i.e.dimsandshape) - Exceptions: Pandera accumulates schema exceptions and reports them all at once. Currently, we are a eagerly raising
SchemaErrorswhen the are found.
license
All the code in this repository is MIT licensed, but we request that you please provide attribution if reusing any of our digital content (graphics, logo, articles, etc.).
about us
CarbonPlan is a non-profit organization working on the science and data of carbon removal. We aim to improve the transparency and scientific integrity of carbon removal and climate solutions through open data and tools. Find out more at carbonplan.org or get in touch by opening an issue or sending us an email.
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