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PyQGIS (3.2) and H5PY DLL problem

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2

I am working in a project in which I need to use PyQGIS and H5PY. The problem comes when I load qgis library and h5py, for example:

import qgis

import h5py

I get this error:

from ._conv import register_converters as _register_converters
File "h5pyh5r.pxd", line 21, in init h5py._conv
File "h5py_objects.pxd", line 12, in init h5py.h5r
File "h5py_objects.pyx", line 1, in init h5py._objects
ImportError: DLL load failed: No se encontró el proceso especificado.

I am using QGIS 3.2 and H5py 2.8.0 with Python36 interpreter contained in QGIS installation folder. H5py was installed through the command:

python -m pip install h5py 

I tried other versions of H5py (2.6.0, 2.7.1) but I had the same problem.

Is there anyone who knows how to solve this dll interaction problem?

python pyqgis hdf5

share|improve this question

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

bumped to the homepage by Community♦ 4 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe this: stackoverflow.com/questions/45046796/…
  
  – Marc Pfister
  Dec 10 '18 at 15:40
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  As Marc Pfister's link shows, there is an osgeo4w package for that library and it's recommended to install those instead of pip packages. It's name for python3 is python3-h5py, Version: 2.8.0-1 (32 bit, 64bit may differ)
  
  – Andreas Müller
  Dec 10 '18 at 15:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I tried with OSGEO4w package but a new problem comes up. When I install the version 2.7.0-1 it throws a message saying that the version of the HDF5 library does not match with the version of the library (QGIS). Version 2.8.0-1 comes with Python37 which has some strange behaviour with Qt module (I think it does not find the correct qt.conf file) that I have to solve. Thanks!
  
  – serge
  Dec 11 '18 at 15:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I have checked with QGIS 3.4 and even loading h5py module from python console inside QGIS 3.4 program the dll problem still persist...
  
  – serge
  Dec 11 '18 at 16:52
  

  
  
  
  

add a comment | 

2

I am working in a project in which I need to use PyQGIS and H5PY. The problem comes when I load qgis library and h5py, for example:

import qgis

import h5py

I get this error:

from ._conv import register_converters as _register_converters
File "h5pyh5r.pxd", line 21, in init h5py._conv
File "h5py_objects.pxd", line 12, in init h5py.h5r
File "h5py_objects.pyx", line 1, in init h5py._objects
ImportError: DLL load failed: No se encontró el proceso especificado.

I am using QGIS 3.2 and H5py 2.8.0 with Python36 interpreter contained in QGIS installation folder. H5py was installed through the command:

python -m pip install h5py 

I tried other versions of H5py (2.6.0, 2.7.1) but I had the same problem.

Is there anyone who knows how to solve this dll interaction problem?

python pyqgis hdf5

share|improve this question

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

bumped to the homepage by Community♦ 4 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe this: stackoverflow.com/questions/45046796/…
  
  – Marc Pfister
  Dec 10 '18 at 15:40
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  As Marc Pfister's link shows, there is an osgeo4w package for that library and it's recommended to install those instead of pip packages. It's name for python3 is python3-h5py, Version: 2.8.0-1 (32 bit, 64bit may differ)
  
  – Andreas Müller
  Dec 10 '18 at 15:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I tried with OSGEO4w package but a new problem comes up. When I install the version 2.7.0-1 it throws a message saying that the version of the HDF5 library does not match with the version of the library (QGIS). Version 2.8.0-1 comes with Python37 which has some strange behaviour with Qt module (I think it does not find the correct qt.conf file) that I have to solve. Thanks!
  
  – serge
  Dec 11 '18 at 15:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I have checked with QGIS 3.4 and even loading h5py module from python console inside QGIS 3.4 program the dll problem still persist...
  
  – serge
  Dec 11 '18 at 16:52
  

  
  
  
  

add a comment | 

I am working in a project in which I need to use PyQGIS and H5PY. The problem comes when I load qgis library and h5py, for example:

import qgis

import h5py

I get this error:

from ._conv import register_converters as _register_converters
File "h5pyh5r.pxd", line 21, in init h5py._conv
File "h5py_objects.pxd", line 12, in init h5py.h5r
File "h5py_objects.pyx", line 1, in init h5py._objects
ImportError: DLL load failed: No se encontró el proceso especificado.

I am using QGIS 3.2 and H5py 2.8.0 with Python36 interpreter contained in QGIS installation folder. H5py was installed through the command:

python -m pip install h5py 

I tried other versions of H5py (2.6.0, 2.7.1) but I had the same problem.

Is there anyone who knows how to solve this dll interaction problem?

python pyqgis hdf5

share|improve this question

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

import qgis

import h5py

python -m pip install h5py 

share|improve this question

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

share|improve this question

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

edited Dec 10 '18 at 15:47

Jochen Schwarze

6,55031957

asked Dec 10 '18 at 15:37

sergeserge

161

asked Dec 10 '18 at 15:37

sergeserge

161

2 Answers
2

active

oldest

votes

0

I think your issue is that you don't have HDF5 built on your machine. All that h5py does is it creates a more pythonic API for accessing the compiled libraries on your machine. If you don't have the base libraries (DLLs), it will fail.

Start by uninstalling h5py with python -m pip uninstall h5py and then proceed through the installation/configuration instructions for HDF5 (https://www.hdfgroup.org/downloads/hdf5/). After that, reinstall h5py. Hope that helps!

share|improve this answer

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

add a comment | 

0

I had python package gdal installed using OSGeo4W environment. And then I installed h5py using PyCharm (maybe it is important). And realized, that when importing gdal (osgeo, ogr, ...) before importing h5py library, I get the same error as you. But when I import h5py first, no error appears. Don't know why, but maybe it helps someone.

Well I have tried it also with qgis library and it's the same. So I would try first import h5py library and then qgis:

import h5py

import qgis

share|improve this answer

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

add a comment | 

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0

I think your issue is that you don't have HDF5 built on your machine. All that h5py does is it creates a more pythonic API for accessing the compiled libraries on your machine. If you don't have the base libraries (DLLs), it will fail.

Start by uninstalling h5py with python -m pip uninstall h5py and then proceed through the installation/configuration instructions for HDF5 (https://www.hdfgroup.org/downloads/hdf5/). After that, reinstall h5py. Hope that helps!

share|improve this answer

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

add a comment | 

0

I think your issue is that you don't have HDF5 built on your machine. All that h5py does is it creates a more pythonic API for accessing the compiled libraries on your machine. If you don't have the base libraries (DLLs), it will fail.

Start by uninstalling h5py with python -m pip uninstall h5py and then proceed through the installation/configuration instructions for HDF5 (https://www.hdfgroup.org/downloads/hdf5/). After that, reinstall h5py. Hope that helps!

share|improve this answer

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

add a comment | 

I think your issue is that you don't have HDF5 built on your machine. All that h5py does is it creates a more pythonic API for accessing the compiled libraries on your machine. If you don't have the base libraries (DLLs), it will fail.

Start by uninstalling h5py with python -m pip uninstall h5py and then proceed through the installation/configuration instructions for HDF5 (https://www.hdfgroup.org/downloads/hdf5/). After that, reinstall h5py. Hope that helps!

share|improve this answer

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

share|improve this answer

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

answered Dec 10 '18 at 16:00

Trevor J. SmithTrevor J. Smith

1,005722

0

I had python package gdal installed using OSGeo4W environment. And then I installed h5py using PyCharm (maybe it is important). And realized, that when importing gdal (osgeo, ogr, ...) before importing h5py library, I get the same error as you. But when I import h5py first, no error appears. Don't know why, but maybe it helps someone.

Well I have tried it also with qgis library and it's the same. So I would try first import h5py library and then qgis:

import h5py

import qgis

share|improve this answer

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

add a comment | 

0

I had python package gdal installed using OSGeo4W environment. And then I installed h5py using PyCharm (maybe it is important). And realized, that when importing gdal (osgeo, ogr, ...) before importing h5py library, I get the same error as you. But when I import h5py first, no error appears. Don't know why, but maybe it helps someone.

Well I have tried it also with qgis library and it's the same. So I would try first import h5py library and then qgis:

import h5py

import qgis

share|improve this answer

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

add a comment | 

I had python package gdal installed using OSGeo4W environment. And then I installed h5py using PyCharm (maybe it is important). And realized, that when importing gdal (osgeo, ogr, ...) before importing h5py library, I get the same error as you. But when I import h5py first, no error appears. Don't know why, but maybe it helps someone.

Well I have tried it also with qgis library and it's the same. So I would try first import h5py library and then qgis:

import h5py

import qgis

share|improve this answer

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

import h5py

import qgis

share|improve this answer

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355

answered Feb 13 at 2:14

CzendaZdendaCzendaZdenda

355