ImportError probelm on Windows 10

[Martin Fencl]

Hi all,

I need help with wardlib installation on Windows 10. I have installed wradlib using conda and all the dependencies seems to be up to date but I get ImportError when importing wradlib. Any idea how to proceed? Traceback is below:

Thanks and all the best for the new year,

Martin

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

(wradlib) C:\Users\K141-B881-6>python
Python 3.9.9 | packaged by conda-forge | (main, Dec 20 2021, 02:36:06) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import wradlib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\__init__.py", line 33, in <module>
    from . import adjust  # noqa
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\adjust.py", line 118, in <module>
    from wradlib import ipol, util
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\ipol.py", line 51, in <module>
    from wradlib import georef, util, zonalstats
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\zonalstats.py", line 69, in <module>
    from wradlib import georef, io
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\io\__init__.py", line 33, in <module>
    from .xarray import *
  File "C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\wradlib\io\xarray.py", line 103, in <module>
    from xarray.backends.api import _MultiFileCloser, combine_by_coords
ImportError: cannot import name '_MultiFileCloser' from 'xarray.backends.api' (C:\Users\K141-B881-6\Anaconda3\envs\wradlib\lib\site-packages\xarray\backends\api.py)

[Kai Mühlbauer]

Hi Martin,

you are probably on an old version of wradlib. Can you check, that you
are on the latest version (1.13.0)?

Best,
Kai

Am 06.01.22 um 15:20 schrieb Martin Fencl:

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[Martin Fencl]

You are right, I was on wradlib version 1.8.0. Updating solved the problem.

Thanks a lot,

Martin

[Kai Mühlbauer]

Great! Happy New Year!

- Kai

Am 06.01.22 um 15:34 schrieb Martin Fencl:

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[Syed Hamid Ali]

Hi Martin,

I also faced the same problem once, however, I was on Mac. I was able to import wradlib in terminal based python but not in jupyter.

I tried hard to solve this issue, but I failed. The quick possible solution is to uninstall the anaconda and install it again. However, you can also try to create an another environment with latest python version and install everything again using conda.

Best regards,

Syed

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[Martin Fencl]

Hi Kai,

just one note to the installation guide https://docs.wradlib.org/en/stable/installation.html:

step5 "(wradlib) $ conda install wradlib" did not install the latest version in my case but the version 1.8.0 which caused the problem. Maybe adding there recommendation to check for update after installation could help also others. Either as step 6 or somewhere else.

Best Regards,

Martin

[Kai Muehlbauer]

Hi Martin, all,

a PullRequest adding this information is very welcome. This is the
location where it should be applied:

https://github.com/wradlib/wradlib-docs/blob/main/source/installation.rst

Best,
Kai

Am 06.01.22 um 15:52 schrieb Martin Fencl:

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--
Kai Muehlbauer
Institute of Geosciences, Meteorology Section, University of Bonn
Auf dem Huegel 20 | +49 228 739083
D-53121 Bonn | kai.mue...@uni-bonn.de