Error when calling Python ecCodes module from Matlab

I am trying to run a Python function from Matlab, but I get an error due to a missing library (the ecCodes library).

I tried to check the missing library by simply importing the module using:

>> py.importlib.import_module('eccodes')
Error using bindings><module> (line 35)
Python Error: RuntimeError: Cannot find the ecCodes library

However, I am perfectly able to import the module directly in Python through the Spyder IDE.

Furthermore, the ecCodes module should be in the Matlab search path, as it is located in:

C:\Users\username\AppData\Local\Continuum\anaconda3\Lib\site-packages\eccodes

Calling

>> py.sys.path

in Matlab shows that the parent-folder is in fact included:

C:\Users\username\AppData\Local\Continuum\anaconda3\Lib\site-packages

Has anyone faced similar issues when calling Python in Matlab?

Thank you in advance!

[Madison Hetlage]

Hi, I am having this problem as well. Did you ever find a solution?

Answer 1

[Pratyush Swain]

Hi Oscar Bondo,

I understand you are receiving an import error as MATLAB cannot find the python library named 'eccodes'. Please try the following workarounds for this issue:

1- Uninstall or delete the existing package library.

2- There is a conda package 'eccodes' for the C library, please make sure it is installed using the following command

conda install -c conda-forge eccodes

3- There is a pypi package 'eccodes' that contains only the Python bindings, please install using the following command.

pip install eccodes

Please try to install both, as the error message may be caused if you have the Python bindings, but not the underlying C library. Alternately, you may also install the package outside of your conda environment by compiling from source.

Hope this helps.