[Qgis-user] Python error on startup

Tue Nov 22 13:06:30 PST 2016

Oddly, I was able to fix it by simply reinstalling/upgrading numpy in my existing Python 2.7 install.

It doesn’t make any sense to me, but it works.

From: Qgis-user [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of Nicolas Cadieux
Sent: November 22, 2016 12:22 PM
To: qgis-user at lists.osgeo.org
Subject: Re: [Qgis-user] Python error on startup

Hi,

You need to change your default Python to the one that qgis uses.  You can change that in the windows environment variables

Nicolas

Le 22 nov. 2016 à 14:38, Stephen Ban [via OSGeo.org <http://OSGeo.org> ] <[hidden email]> a écrit :

Hi,

I recently started getting an error message when launching QGIS. I can’t pinpoint exactly when it started happening, but I’m pretty sure it must be related to a recent install of Python when I had both Python 2.7 and 3.5 installed. I also have ArcGIS on my machine, so that was the only Python version installed for awhile. I then installed Python 3.5 to do some testing, but have since uninstalled it so the only remaining standalone Python version is ArcGIS’s 2.7. I’ve purged any extraneous Python environment variables and cleaned the Windows registry to no effect. I’m running Windows 10 64-bit edition, and have always installed the 64-bit versions of QGIS.

I was originally running GQIS 2.16.1, then uninstalled it and installed QGIS 2.18. Both versions give me the same error message on startup: “Python error: Couldn’t load plugin ‘processing’ See message log (Python Error) for more details.” The Python message log contains the following:
“1 Traceback (most recent call last):

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 308, in loadPlugin

__import__(packageName)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\__init__.py", line 29, in <module>

from processing.tools.general import * # NOQA

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\tools\general.py", line 31, in <module>

from processing.core.Processing import Processing

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\core\Processing.py", line 55, in <module>

from processing.algs.qgis.QGISAlgorithmProvider import QGISAlgorithmProvider

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\algs\qgis\QGISAlgorithmProvider.py", line 109, in <module>

from .RasterLayerStatistics import RasterLayerStatistics

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\algs\qgis\RasterLayerStatistics.py", line 36, in <module>

from processing.tools import raster

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python/plugins\processing\tools\raster.py", line 29, in <module>

import numpy

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:\Users\steph\AppData\Roaming\Python\Python27\site-packages\numpy\__init__.py", line 180, in <module>

from . import add_newdocs

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:\Users\steph\AppData\Roaming\Python\Python27\site-packages\numpy\add_newdocs.py", line 13, in <module>

from numpy.lib import add_newdoc

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:\Users\steph\AppData\Roaming\Python\Python27\site-packages\numpy\lib\__init__.py", line 8, in <module>

from .type_check import *

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:\Users\steph\AppData\Roaming\Python\Python27\site-packages\numpy\lib\type_check.py", line 11, in <module>

import numpy.core.numeric as _nx

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

File "C:\Users\steph\AppData\Roaming\Python\Python27\site-packages\numpy\core\__init__.py", line 14, in <module>

from . import multiarray

File "C:/PROGRA~1/QGIS21~1.1/apps/qgis/./python\qgis\utils.py", line 607, in _import

mod = _builtin_import(name, globals, locals, fromlist, level)

ImportError: DLL load failed: %1 is not a valid Win32 application.”

Any help or advice on resolving this error would be appreciated.

Stephen

Stephen Ban, Ph.D., RPBio.

National Ocean Spatial Analysis Manager

Canadian Parks and Wilderness Society

#410-698 Seymour Street, Vancouver, B.C. V6B 3K6

Tel: 604 685-7445 ext. 30            

Fax: 604 629-8532 

Email: [hidden email]

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