Errors in opening PRISMA L2D product

[Former user]

Dear sirs, thanks a lot for your wonderful work. I used to open PRISMA L2d (he5 format) data previously, but it now gives me an error and it does not work. Here's the message: 2022-05-31T17:40:38 CRITICAL Traceback (most recent call last): File "C:\Users/Raffaele Casa/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\site-packages\typeguard__init__.py", line 903, in wrapper retval = func(args, *kwargs) File "C:\Users/Raffaele Casa/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\enmapboxplugin\enmapboxprocessing\algorithm\importprismal2dalgorithm.py", line 69, in processAlgorithm import h5py File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users\Raffaele Casa\AppData\Roaming\Python\Python39\site-packages\h5py__init__.py", line 33, in from . import version File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "C:\Users\Raffaele Casa\AppData\Roaming\Python\Python39\site-packages\h5py\version.py", line 15, in from . import h5 as _h5 File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) File "h5py\h5.pyx", line 1, in init h5py.h5 File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in _import mod = _builtin_import(name, globals, locals, fromlist, level) ImportError: DLL load failed while importing defs: Impossible to find the specified procedure.

[Andreas Rabe]

Please try to install the h5py package via OSGeo4W installaer as described here #868.

[Dimitris Poursanidis]

Is that also the situation with that message?

Reading data with h5py API failed. Fall back to GDAL API, which is very slow on PRISMA BIP interleaved data: HDF5:"""F:\PRISMA HERAKLION 2020\Data\PRS_L1_STD_OFFL_20220526092219_20220526092223_0001\PRS_L1_STD_OFFL_20220526092219_20220526092223_0001.he5"""://HDFEOS/SWATHS/PRS_L1_HCO/Data_Fields/VNIR_Cube

[Andreas Rabe]

Maybe, are you already using the experimental v3.10.0.20220524T082114, or an older version?

[Dimitris Poursanidis]

the experimental one

[Andreas Rabe]

I would suggest to try installing h5py via the OSGeo4W installer.

[Dimitris Poursanidis]

I will. However, in the next release (when?) shall you add that in the packages for automatic installation?

[Andreas Rabe]

The next release will be very similar to the experimental version you already have installed.

Not sure about the h5py package. It depends on your system and the QGIS version, if it works directly. I haven’t figured that out fully.

[Dimitris Poursanidis]

Thanks! Hope to see you in Potsdam in the conference.

[Andreas Rabe]

Ah nice, see you at the EARSeL