Sf-anomalies notebook

Software and Tools
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1

Greetings,
I hope this message can reach the right person. I'm trying to run the notebook for seasonal forecast anomalies
https://ecmwf-projects.github.io/copernicus-training-c3s/sf-anomalies.html
Unfortunately, I get the below error. I've been trying to solve this for a long time. I had this bug on mac and recently on a new windows computer. Have you experienced this before? if so, could you please help me to solve this problem?
Thank you very much,
Carlo

---------------

ds = xr.open_dataset(f'{DATADIR}/ecmwf_seas5_1993-2016_05_hindcast_monthly_tp.grib', engine='cfgrib')
ds


1817×851 103 KB

2

Hi Carlo!

is it ecCodes installed in your system? have the notebook cells installing and importing the relevant modules run properly on your notebook?

Have a look at the system dependencies section here: https://pypi.org/project/cfgrib/0.8.4.5/

Regards!

Edu

3

Thank you Edu,
Yes, I have ecCodes installed.

python -m cfgrib selfcheck
Found: ecCodes v2.24.2.
Your system is ready.

I'm not sure about the dependencies, I'm on a windows machine and the instructions are for linux and mac only. Also, this link is broken https://software.ecmwf.int/wiki/display/ECC/ecCodes+installation
Any ideas?
Thank you!
Carlo

4

I'm sorry I can't help you further.

If no other users can provide helpful feedback... have you tried contacting User Support? http://support.ecmwf.int

5

Do you get the same error also when you run the script from the terminal? Try checking if Jupyter is using the right kernel (the one with cfgrib installed). 

Also, have you tried installing cfgrib both with conda and pip? 

6

thank you for the clues

I'm using a base kernel, I wasn't able to find the kernel cfgrid installs 

7

I ran it as a py file and I got the same error

8

So, if you open a python terminal and you type import cfgrib you don't get any errors? 

9

same thing. But it seems eccodes is the problem



{
    "name": "RuntimeError",
    "message": "ecCodes library not found using ['eccodes', 'libeccodes.so', 'libeccodes']",
    "stack": "---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\gribapi\\bindings.py:29
     28 try:
---> 29     from ._bindings import ffi, lib
     30 except ModuleNotFoundError:

ModuleNotFoundError: No module named 'gribapi._bindings'

During handling of the above exception, another exception occurred:

RuntimeError                              Traceback (most recent call last)
Cell In[2], line 15
     13 from dateutil.relativedelta import relativedelta
     14 import calendar
---> 15 import cfgrib
     16 # Libraries for plotting and geospatial data visualisation
     17 from matplotlib import pyplot as plt

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\cfgrib\\__init__.py:20
     18 # cfgrib core API depends on the ECMWF ecCodes C-library only
     19 from .abc import Field, Fieldset, Index, MappingFieldset
---> 20 from .cfmessage import COMPUTED_KEYS
     21 from .dataset import (
     22     Dataset,
     23     DatasetBuildError,
   (...)
     27     open_from_index,
     28 )
     29 from .messages import FieldsetIndex, FileStream, Message

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\cfgrib\\cfmessage.py:29
     26 import attr
     27 import numpy as np
---> 29 from . import abc, messages
     31 LOG = logging.getLogger(__name__)
     33 # taken from eccodes stepUnits.table

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\cfgrib\\messages.py:28
     25 import typing as T
     27 import attr
---> 28 import eccodes  # type: ignore
     29 import numpy as np
     31 from . import abc

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\eccodes\\__init__.py:15
     12 from __future__ import absolute_import
     13 import sys
---> 15 from .eccodes import *
     16 from .eccodes import __version__
     17 from .eccodes import bindings_version

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\eccodes\\eccodes.py:12
      1 #
      2 # (C) Copyright 2017- ECMWF.
      3 #
   (...)
     10 #
     11 #
---> 12 from gribapi import __version__
     13 from gribapi import bindings_version
     15 from gribapi import GRIB_CHECK as CODES_CHECK

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\gribapi\\__init__.py:13
      1 #
      2 # (C) Copyright 2017- ECMWF.
      3 #
   (...)
     10 #
     11 #
---> 13 from .gribapi import *  # noqa
     14 from .gribapi import __version__
     15 from .gribapi import bindings_version

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\gribapi\\gribapi.py:32
     29 import os
     30 import numpy as np
---> 32 from .bindings import ENC, ffi, lib
     33 from .bindings import __version__ as bindings_version  # noqa
     34 from . import errors

File c:\\Users\\cmont\\anaconda3\\Lib\\site-packages\\gribapi\\bindings.py:60
     58             pass
     59     if lib is None:
---> 60         raise RuntimeError(f\"ecCodes library not found using {LIBNAMES}\")
     62 # default encoding for ecCodes strings
     63 ENC = \"ascii\"

RuntimeError: ecCodes library not found using ['eccodes', 'libeccodes.so', 'libeccodes']"
}

10

it seems this solved my problem

!pip install ecmwflibs

thank you very much for taking the time to help me

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