[Qgis-user] Problem using Grass 7 functions in Processing Toolbox

[Jonathan Moules]

I confirm this. On the Advanced Interface, the "GRASS commands" all appear
to be fine, but anything under "GRASS GIS 7 commands" fails with a wall of
Python error:

An error has occured while executing Python code:
> Traceback (most recent call last):
>   File
> "C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins\processing\gui\ProcessingToolbox.py",
> line 181, in executeAlgorithm
>     message = alg.checkBeforeOpeningParametersDialog()
>   File
> "C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins\processing\algs\grass7\Grass7Algorithm.py",
> line 511, in checkBeforeOpeningParametersDialog
>     msg = Grass7Utils.checkGrass7IsInstalled()
>   File
> "C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins\processing\algs\grass7\Grass7Utils.py",
> line 361, in checkGrass7IsInstalled
>     cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
>   File "C:\PROGRA~1\QGISCH~1\apps\Python27\lib\ntpath.py", line 96, in join
>     assert len(path) > 0
> TypeError: object of type 'NoneType' has no len()
> Python version:
> 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)]
>
> QGIS version:
> 2.4.0-Chugiak Chugiak, 8fdd08a
> Python path:
> ['C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins\\processing',
> 'C:/PROGRA~1/QGISCH~1/apps/qgis/./python', u'C:/Users/jmou1/.qgis2/python',
> u'C:/Users/jmou1/.qgis2/python/plugins',
> 'C:/PROGRA~1/QGISCH~1/apps/qgis/./python/plugins',
> 'C:\\PROGRA~1\\QGISCH~1\\bin\\python27.zip',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\DLLs',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\plat-win',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\lib-tk',
> 'C:\\PROGRA~1\\QGISCH~1\\bin', 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\PIL',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\jinja2-2.7.2-py2.7.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\markupsafe-0.23-py2.7-win-amd64.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\pytz-2012j-py2.7.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\win32',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\win32\\lib',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\Pythonwin',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\Shapely-1.2.18-py2.7-win-amd64.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\six-1.3.0-py2.7.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\xlrd-0.9.2-py2.7.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\Python27\\lib\\site-packages\\xlwt-0.7.5-py2.7.egg',
> 'C:\\PROGRA~1\\QGISCH~1\\apps\\qgis\\python\\plugins\\fTools\\tools']



This is QGIS 2.4 64bit, Windows 7 64bit. Using the standalone installer
package.

Cheers,
Jonathan



On 4 July 2014 18:24, mtreg <mtreglia at gmail.com> wrote:

> Hi All,
>
> I was trying to access some GRASS 7 functions through the Processing
> toolbox
> in QGIS 2.4 (32 bit), but none work (see error message below).  The other
> packages I've tied in the Processing toolbox seem to work fine. My machine
> is running Win7 64 bit. I've gotten this with versions installed from both
> OSGEO4W and the basic QGIS installer.  I've tried suggestions recommended
> in
> this bug report thread with no success: http://hub.qgis.org/issues/10714
>
> Any suggestions or useful interpretations in of the error message?
>
> Thanks!
> Mike
>
> Here is the entirety of the error message that pops up:
>
> An error has occured while executing Python code:
>
> Traceback (most recent call last):
>   File
>
> "C:/OSGeo4W/apps/qgis/./python/plugins\processing\gui\ProcessingToolbox.py",
> line 181, in executeAlgorithm
>     message = alg.checkBeforeOpeningParametersDialog()
>   File
>
> "C:/OSGeo4W/apps/qgis/./python/plugins\processing\algs\grass7\Grass7Algorithm.py",
> line 511, in checkBeforeOpeningParametersDialog
>     msg = Grass7Utils.checkGrass7IsInstalled()
>   File
>
> "C:/OSGeo4W/apps/qgis/./python/plugins\processing\algs\grass7\Grass7Utils.py",
> line 361, in checkGrass7IsInstalled
>     cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
>   File "C:\OSGeo4W\apps\Python27\lib\ntpath.py", line 96, in join
>     assert len(path) > 0
> TypeError: object of type 'NoneType' has no len()
>
>
> Python version:
> 2.7.4 (default, Apr  6 2013, 19:54:46) [MSC v.1500 32 bit (Intel)]
>
>
> QGIS version:
> 2.4.0-Chugiak Chugiak, 8fdd08a
>
>
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/Problem-using-Grass-7-functions-in-Processing-Toolbox-tp5149668.html
> Sent from the Quantum GIS - User mailing list archive at Nabble.com.
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