Installation

Required dependencies

• Required

  • Python (3.7 or later)

  • xarray

  • dask

  • mypy_extensions (only for python-3.7)

  • python-blosc

  • wurlitzer

  • libwgrib2

• Build

  • Cython

  • gfortran_linux-64 from conda. Recommended when building in conda environment.

• Optional, used only by pywgrib2 and the test suite.

  • netcdf4

  • zarr

• Testing

  • pytest

  • dill

• Documentation

  • sphinx

  • sphinx_rtd_theme

  • sphinxcontrib-programoutput

  • matplotlib

  • cfgrib

  • cf_xarray

  • metpy

Instructions

With conda

From within conda environment:

conda install -c yt87 pywgrib2_xr

From the source

The best way to proceed is to install all required dependencies with conda:

conda create -n test python=3.8 cython gcc_linux-64 numpy
conda activate test
conda install dask python-blosc wurlitzer xarray
conda install pytest dill netcdf4 zarr      # to run tests
conda install -c yt87 libwgrib2

Then, from the base of the source directory:

python setup.py develop

The conda compiler will find libwgrib2 and its header files. Native gcc works as well, but one has to set library_dir and include_dir in setup.cfg.

pywgrib2_xr comes with the test suite. To run the tests, execute:

pytest tests