wrf-python installed from conda-forge produces import error

在 Windows 7 上使用报告中的 python -c "import wrf" 命令重现 conda-forge 安装。阅读 _wrffortran 导入附近的 wrf/__init__.py 和 wrf/config.py，然后将 conda 软件包与可正常工作的 wheel 进行比较；完成的标准是 conda 安装能够成功导入，并且无需 DLL 故障即可读取 wrfout NetCDF 文件。

Installed wrf-pyhton through conda-forge on windows 7 64 bit. Post installation, checked if the package is installed correctly using following command:-

 python -c "import wrf"

and it worked without an error. However, when I ran the script the following error is produced:-

Python 3.7.6 (default, Jan  8 2020, 20:23:39) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import wrf
Traceback (most recent call last):
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\__init__.py", line 6, in <module>
    from . import api
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\api.py", line 1, in <module>
    from .config import (xarray_enabled, disable_xarray, enable_xarray,
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\config.py", line 6, in <module>
    from ._wrffortran import (fomp_enabled, fomp_set_num_threads,
ImportError: DLL load failed: The specified path is invalid.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\__init__.py", line 18, in <module>
    from . import api
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\api.py", line 1, in <module>
    from .config import (xarray_enabled, disable_xarray, enable_xarray,
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\config.py", line 6, in <module>
    from ._wrffortran import (fomp_enabled, fomp_set_num_threads,
ImportError: DLL load failed: The specified path is invalid.

I am not sure what causes the problem. Could someone help on this t rectify...

Edit:-

Just to clarify that the same works on Linux version of miniconda.

Edit-2

Uninstalled latest version of wrf-python and installed older version (1.3.0). This time I am getting following error:-

Traceback (most recent call last):
  File "insdvp_app.py", line 30, in <module>
    import utils
  File "Y:\project\insdvpgit\insdvp\utils.py", line 34, in <module>
    from wrf import interplevel
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\__init__.py", line 16, in <module>
    from . import api
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\api.py", line 1, in <module>
    from .config import (xarray_enabled, disable_xarray, enable_xarray,
  File "C:\Users\Sundar\miniconda3\envs\insdvp\lib\site-packages\wrf\config.py", line 6, in <module>
    from ._wrffortran import (fomp_enabled, fomp_set_num_threads,
ImportError: DLL load failed: The specified path is invalid.

Edit-3

Fiddled around with package from https://www.lfd.uci.edu/~gohlke/pythonlibs/. This time it successfully installed (version 1.2.0 as it was the latest at that point of time) and imported without an error. However, while reading the wrfout file, the script closed without producing an error.

To check if the problem exist in window 10, I installed the module on a freshly installed miniconda. This time it did not show any error as I have observed in windows 7. However, It simply closes without producing any error when reading a wrfout netcdf file as seen in latest try on windows 7.

Edit-4
Checked the wheel package today again at https://www.lfd.uci.edu/~gohlke/pythonlibs/#wrf_python and found the latest version 1.3.2. Uninstalled the conda version and installed whell package from link. Finally, It worked :-)

Something is wrong with conda install on windows. You guys may want to chack it out...