GRASS gives python error if input layer path contains non ascii chars

[qgib]

Author Name: Pedro Costa (Pedro Costa)
Original Redmine Issue: 5420
Affected QGIS version: 2.4.0
Redmine category:processing/grass

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Hello to all,

This is my first intervention here so i hope that i'm doing this right.
My versions are:

OS: Windows 7 64 bits
QGIS: 1.7.4 revision 411aff6
sextante 1.0.4

If I tried execute any grass algorithm like v.buffer, without any vector in the qgis project, the tool seems to be working well (like image '1'.
But if i have a shapefile open in the project give me a error (like the image '2') and I can't execute any tool.

Is very strange. Does anyone know the resolution? This only happen with grass algorithms.

Thanks

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• 1.png (Pedro Costa)
• 2.png (Pedro Costa)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Hi Pedro,

check also the sextante log and post any message that can be useful (of there is something more than the python error already attached).

[qgib]

Author Name: Pedro Costa (Pedro Costa)

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Hi Giovanni,

I found the problem. If my shapes have in a directory named with special characters, like 'ã' or 'ç' gives me the error.
Only happen with some algorithms.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• subject was changed from Grass give a python error to GRASS gives python error if input layer path contains non ascii chars

[qgib]

Author Name: Giovanni Manghi (@gioman)

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this seems to be still true, the message is

Traceback (most recent call last):
File "C:\OSGeo4W\apps\qgis-dev\python\plugins\sextante\core\GeoAlgorithm.py", line 117, in execute
self.processAlgorithm(progress)
File "C:\OSGeo4W\apps\qgis-dev\python\plugins\sextante\grass\GrassAlgorithm.py", line 324, in processAlgorithm
self.consoleOutput = GrassUtils.executeGrass(commands, progress, outputCommands);
File "C:\OSGeo4W\apps\qgis-dev\python\plugins\sextante\grass\GrassUtils.py", line 262, in executeGrass
command = GrassUtils.prepareGrassExecution(commands)
File "C:\OSGeo4W\apps\qgis-dev\python\plugins\sextante\grass\GrassUtils.py", line 241, in prepareGrassExecution
GrassUtils.createGrassScript(commands)
File "C:\OSGeo4W\apps\qgis-dev\python\plugins\sextante\grass\GrassUtils.py", line 167, in createGrassScript
output.write(command + "
")
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe7' in position 54: ordinal not in range(128)

[qgib]

Author Name: Pedro Venâncio (Pedro Venâncio)

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Hi Giovanni,

Confirmed also on Linux:

Traceback (most recent call last):
  File "/usr/share/qgis/python/plugins/sextante/core/GeoAlgorithm.py", line 117, in execute
    self.processAlgorithm(progress)
  File "/usr/share/qgis/python/plugins/sextante/grass/GrassAlgorithm.py", line 324, in processAlgorithm
    self.consoleOutput = GrassUtils.executeGrass(commands, progress, outputCommands);
  File "/usr/share/qgis/python/plugins/sextante/grass/GrassUtils.py", line 262, in executeGrass
    command = GrassUtils.prepareGrassExecution(commands)
  File "/usr/share/qgis/python/plugins/sextante/grass/GrassUtils.py", line 248, in prepareGrassExecution
    GrassUtils.createGrassBatchJobFileFromGrassCommands(commands)
  File "/usr/share/qgis/python/plugins/sextante/grass/GrassUtils.py", line 176, in createGrassBatchJobFileFromGrassCommands
    fout.write(command + "\
")
UnicodeEncodeError: 'ascii' codec can't encode character u'\\xc1' in position 38: ordinal not in range(128)

Works fine if the same data is stored on a path without non ascii characters.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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still true on qgis 2.0.1

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Should be fixed in 3d6f17b. Please test

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• status_id was changed from Feedback to Closed

[qgib]

Author Name: Nicole Stoffels (Nicole Stoffels)

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Still not working on qgis 2.4.0 (this qgis uses python 2.7.3, gcc 4.6.3). I have 64-bit linux machine with ubuntu 12.4.

As far as I can see, in the commit 3d6f17b 'open' is replaced by 'codecs.open' allowing utf-8 encoding. However, that does not fix the problem with non-ascii characters in the path.

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• assigned_to_id was changed from Victor Olaya to Giovanni Manghi
• status_id was changed from Closed to Reopened

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Nicole Stoffels wrote:

Still not working on qgis 2.4.0 (this qgis uses python 2.7.3, gcc 4.6.3). I have 64-bit linux machine with ubuntu 12.4.

As far as I can see, in the commit 3d6f17b 'open' is replaced by 'codecs.open' allowing utf-8 encoding. However, that does not fix the problem with non-ascii characters in the path.

It works fine here on the very same OS. You are probably using an old version of Processing. Check in ~./qgis2/pyhton/plugins

if there is a "processing" folder then delete it, close qgis and try again.

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• status_id was changed from Reopened to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• project_id was changed from 78 to 17
• category_id removed 59
• version was configured as 2.4.0
• crashes_corrupts_data was configured as 0

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• category_id was configured as Processing/GRASS

[qgib]

Author Name: Giovanni Manghi (@gioman)

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closing for lack of feedback, please reopen if necessary.

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• resolution was changed from to worksforme
• status_id was changed from Feedback to Closed
• assigned_to_id removed Giovanni Manghi