Processing toolbox: r.reclass failing on Windows

[qgib]

Author Name: Markus Neteler (Markus Neteler)
Original Redmine Issue: 16128
Affected QGIS version: 2.18.23
Redmine category:processing/grass

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From
https://gis.stackexchange.com/questions/225923/how-to-avoir-ioerror-errno-13-permission-denied-when-running-r-reclass-from

(also verified in 2.18 on Windows myself)

While it works fine on Linux, r.reclass is failing on Windows:

2017-01-26T12:25:14 2   Uncaught error while executing algorithm
            Traceback (most recent call last):
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\core\\GeoAlgorithm.py", line 203, in execute
                self.processAlgorithm(progress)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\Grass7Algorithm.py", line 274, in processAlgorithm
                func(self)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\ext\
_reclass.py", line 45, in processCommand
                with open(tempRulesName, "w") as tempRules:
            IOError: [Errno 13] Permission denied: u'tmp1485429914724

It seems that the TEMP dir is not set properly.

[qgib]

Author Name: Markus Neteler (Markus Neteler)

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Problematic code is here:

https://github.com/qgis/QGIS/blob/master/python/plugins/processing/algs/grass7/ext/r_reclass.py#L45

Maybe this is missing:

from processing.tools.system import getTempFilename

(I compared to https://github.com/qgis/QGIS/blob/master/python/plugins/processing/algs/grass7/ext/r_category.py )

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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• category_id was changed from Processing/Core to Processing/GRASS

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Fixed in changeset "2c188b2b0f00595ed4e2b3f0851250812b563456".

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• status_id was changed from Open to Closed

[qgib]

Author Name: matteo ghetta (@ghtmtt)

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Issue still valid on Windows systems.

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• priority_id was changed from Normal to High
• status_id was changed from Closed to Reopened
• description was changed from From
  https://gis.stackexchange.com/questions/225923/how-to-avoir-ioerror-errno-13-permission-denied-when-running-r-reclass-from

(also verified in 2.18 on Windows myself)

While it works fine on Linux, r.reclass is failing on Windows:

2017-01-26T12:25:14 2   Uncaught error while executing algorithm
            Traceback (most recent call last):
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\core\\GeoAlgorithm.py", line 203, in execute
                self.processAlgorithm(progress)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\Grass7Algorithm.py", line 274, in processAlgorithm
                func(self)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\ext\
_reclass.py", line 45, in processCommand
                with open(tempRulesName, "w") as tempRules:
            IOError: [Errno 13] Permission denied: u'tmp1485429914724

It seems that the TEMP dir is not set properly. to From
https://gis.stackexchange.com/questions/225923/how-to-avoir-ioerror-errno-13-permission-denied-when-running-r-reclass-from

(also verified in 2.18 on Windows myself)

While it works fine on Linux, r.reclass is failing on Windows:

2017-01-26T12:25:14 2   Uncaught error while executing algorithm
            Traceback (most recent call last):
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\core\\GeoAlgorithm.py", line 203, in execute
                self.processAlgorithm(progress)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\Grass7Algorithm.py", line 274, in processAlgorithm
                func(self)
              File "C:/PROGRA~1/QGIS2~1.18/apps/qgis/./python/plugins\\processing\\algs\\grass7\\ext\
_reclass.py", line 45, in processCommand
                with open(tempRulesName, "w") as tempRules:
            IOError: [Errno 13] Permission denied: u'tmp1485429914724

It seems that the TEMP dir is not set properly.

• assigned_to_id removed Victor Olaya
• regression was changed from 0 to 1
• version was changed from 2.18.2 to 2.18.23

[qgib]

Author Name: Giovanni Manghi (@gioman)

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matteo ghetta wrote:

Issue still valid on Windows systems.

I just tried on QGIS master and 2.18.24 on Windows 10 and it works as expected. Can you share the data and reclass rules?

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• status_id was changed from Reopened to Feedback

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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• resolution was changed from to no timely feedback
• status_id was changed from Feedback to Closed