netCDF4 ImportError: symbol not found in flat namespace '_H5get_libversion'

[fpavogt]

Describe the bug

After a simple pip-install of dvas, running the high-level command dvas_optimize triggers the following error:

...
  File "/opt/miniconda3/envs/py310/lib/python3.10/site-packages/netCDF4/__init__.py", line 3, in <module>
    from ._netCDF4 import *
ImportError: dlopen(/opt/miniconda3/envs/py310/lib/python3.10/site-packages/netCDF4/_netCDF4.cpython-310-darwin.so, 0x0002): symbol not found in flat namespace '_H5get_libversion'

This is a caused by netCDF4 not being installed properly. In particular, pip is unable to handle the necessary underlying C-dependencies of netCDF4.

The easiest way to install these is via conda ... assuming you are lucky enough to have access to the tool ...