JiaweiZhuang
commented
6 years ago Thanks for reporting. Problem confirmed. A workaround is making a softlink to libnetcdf.so in the conda environment (ref: modelica-3rdparty/netCDF-DataReader#15, conda/conda#3973)
The first time of running import ESMF should return a longer trace than what you've shown:
```python
In [1]: import ESMF
Traceback (most recent call last):
File "/home/ubuntu/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/interface/loadESMF.py", line 118, in
mode=ct.RTLD_GLOBAL)
File "/home/ubuntu/miniconda/envs/geo/lib/python3.6/ctypes/__init__.py", line 348, in __init__
self._handle = _dlopen(self._name, mode)
OSError: libnetcdf.so.11: cannot open shared object file: No such file or directory
---------------------------------------------------------------------------
OSError Traceback (most recent call last)
~/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/interface/loadESMF.py in ()
117 _ESMF = ct.CDLL(os.path.join(libsdir,'libesmf_fullylinked.so'),
--> 118 mode=ct.RTLD_GLOBAL)
119 except:
~/miniconda/envs/geo/lib/python3.6/ctypes/__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error)
347 if handle is None:
--> 348 self._handle = _dlopen(self._name, mode)
349 else:
OSError: libnetcdf.so.11: cannot open shared object file: No such file or directory
During handling of the above exception, another exception occurred:
ImportError Traceback (most recent call last)
in ()
----> 1 import ESMF
~/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/__init__.py in ()
54 #### IMPORT LIBRARIES #########################################################
55
---> 56 from ESMF.api.esmpymanager import *
57 from ESMF.api.grid import *
58 from ESMF.api.mesh import *
~/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/api/esmpymanager.py in ()
9 from ESMF.api.constants import *
10 from ESMF.util.exceptions import *
---> 11 from ESMF.interface.cbindings import *
12 from ESMF.util.decorators import initialize
13
~/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/interface/cbindings.py in ()
11 import ESMF.api.constants as constants
12 from ESMF.util.decorators import deprecated, netcdf
---> 13 from ESMF.interface.loadESMF import _ESMF
14
15 def copy_struct(src):
~/miniconda/envs/geo/lib/python3.6/site-packages/ESMF/interface/loadESMF.py in ()
119 except:
120 traceback.print_exc(file=sys.stdout)
--> 121 raise ImportError('The ESMF shared library did not load properly.')
ImportError: The ESMF shared library did not load properly.
```
In the above error message, notice the line:
OSError: libnetcdf.so.11: cannot open shared object file: No such file or directoryGo to the lib/ folder of your conda environment (mine is called geo, so the full path is ~/miniconda/envs/geo/lib)
$ ls libnetcdf*
libnetcdf.a libnetcdff.a libnetcdff.so libnetcdff.so.6 libnetcdff.so.6.1.1 libnetcdf.settings libnetcdf.so libnetcdf.so.13ESMPy is looking for libnetcdf.so.11 but it doesn't exist. So, simply create a new link:
$ ln -s libnetcdf.so libnetcdf.so.11This solves my problem. Please see if it works for you. I will raise the issue upstream (or tell me if you already did that).
jgerardsimcock
I've just installed the libraries as directed in the installation guide. When I
import xesmfI get the following stack trace.Should I also raise this upstream in the esmfpy channel?