Installation of filters.python

[Spfeil2]

When i run the pipeline

[
    "path/to/normal_100.las",  
    {  
        "type":"filters.python",
        "script":"path/to/angle.py",
        "function":"calcAngle",
        "module":"anything"
    },
    {
        "type":"writers.las",
        "filename":"path/to/angle.las"
    }
]

pdal triggers this error:

PDAL: Couldn't create filter stage of type 'filters.python'.
You probably have a version of PDAL that didn't come with a plugin
you're trying to load.  Please see the FAQ at https://pdal.io/faq

when i run pdal --drivers filters.python isn't there

filters.planefit             Plane Fit (Kutz et al., 2003)
filters.pmf                  Progressive morphological filter
filters.poisson              Poisson Surface Reconstruction Filter
filters.projpipeline         Transform coordinates using Proj pipeline string, WKT2 coordinate operations or URN definition

im using a virtual env and run this command conda create --yes --name pdalenv --channel conda-forge pdal python-pdal gdal

My question is, how can I get the filters.python driver to be installed to run my pipeline and embed python in pdal?

[hobu]

try manually setting the PDAL_DRIVER_PATH and verify there actually are the .so or .dylib files in that path.

export PDAL_DRIVER_PATH=$CONDA_PREFIX/lib/python3.10/site-packages/pdal

[Spfeil2]

im sorry, i didn't mention that im using windows10

i tried

set PDAL_DRIVER_PATH=$CONDA_PREFIX\Lib\site-packages\pdal

but it's still not working. I guess the problem is on my windows machine is, that there aren't any similar files like .so or .dylib The libpdalpython.pyd should be the extension which i installed with pip, but i look forward to the embeddeding and not extension

$CONDA_PREFIX\Lib\site-packages\pdal> dir

----- WSL ----- I also tried to install the conda env and the fitlers.python driver on a Windows-Subsystem for Linux. here, everything works as expected, but for my Project I need to run it on Windows

[ClementAlba]

Hi @Spfeil2,

I had the same problem, try to watch if your $CONDA_PREFIX$\bin contains these files :

• libpdal_plugin_filter_python.dll
• libpdal_plugin_reader_numpy.dll

If they are, just change your PDAL_DRIVER_PATH value to this :

set PDAL_DRIVER_PATH=$CONDA_PREFIX$\bin

Tip : to see if your PDAL_DRIVER_PATH is correct, you can verify it's value with this command : conda info --system

[Spfeil2]

That works. Great! Thanks @ClementAlba a lot for this quick solution Also thanks @hobu for the previous reply!

[hobu]

does your conda path have a space in it? The activate script attempts to set this for you, but maybe it isn't appropriately handling spaces?

[hobu]

Please try a fresh conda environment. I have pushed a fixed that should account for spaces in conda prefix names in the activate script there.

[Spfeil2]

I had no spaces in my path. I tried the push in a new env but the above error is still there