search

ecmwf / eccodes-python

Python interface to the ecCodes GRIB/BUFR decoder/encoder
Apache License 2.0
115 stars 33 forks source link

Module/attribute problem within Eccodes module #29

Closed jcorner1 closed 4 years ago

jcorner1 commented 4 years ago

I'm trying to use Eccodes in opening a file and I get this error message:

AttributeError Traceback (most recent call last)

in () ----> 1 ds = xr.open_dataset(os.path.join(pathfiles,datafile), engine='cfgrib') ~\Anaconda3\lib\site-packages\xarray\backends\api.py in open_dataset(filename_or_obj, group, decode_cf, mask_and_scale, decode_times, autoclose, concat_characters, decode_coords, engine, chunks, lock, cache, drop_variables, backend_kwargs, use_cftime) 515 elif engine == "cfgrib": 516 store = backends.CfGribDataStore( --> 517 filename_or_obj, lock=lock, **backend_kwargs 518 ) 519 ~\Anaconda3\lib\site-packages\xarray\backends\cfgrib_.py in __init__(self, filename, lock, **backend_kwargs) 36 37 def __init__(self, filename, lock=None, **backend_kwargs): ---> 38 import cfgrib 39 40 if lock is None: ~\Anaconda3\lib\site-packages\cfgrib\__init__.py in () 17 18 # cfgrib core API depends on the ECMWF ecCodes C-library only ---> 19 from .cfmessage import CfMessage 20 from .dataset import Dataset, DatasetBuildError, open_file, open_fileindex 21 from .messages import Message, FileStream ~\Anaconda3\lib\site-packages\cfgrib\cfmessage.py in () 27 import numpy as np # noqa 28 ---> 29 from . import messages 30 31 LOG = logging.getLogger(__name__) ~\Anaconda3\lib\site-packages\cfgrib\messages.py in () 47 # MULTI-FIELD support is very tricky. Random access via the index needs multi support to be off. 48 # ---> 49 eccodes.codes_grib_multi_support_off() 50 51 AttributeError: module 'pyeccodes.compat' has no attribute 'codes_grib_multi_support_off' Here is my line of code: ds = xr.open_dataset(os.path.join(pathfiles,datafile), engine='cfgrib') Not sure if it's a bug or just using pip instead of conda to install cfgrib as well as Eccodes. I tried to use conda but it wouldn't install in the base environment.
alexamici commented 4 years ago

@jcorner1 this is a tricky one, cfgrib didn't yet announce compatibility with eccodes-python and the use of CFGRIB_USE_EXTERNAL_ECCODES_BINDINGS is experimental. And in fact the support is broken starting from version 0.9.8.2. Please use version 0.9.8.1 for now.

@shahramn I should have finally solved the MULTI-FIELD message issues but I needed to use a number of internal interfaces. Now is a good time to sync up.

I'll review the latest version of eccodes-python and report back here.

jcorner1 commented 4 years ago

@alexamici That did indeed fix the issue I was having. Thanks!