LTR-QGIS crashes after edit a Modell

[qgib]

Author Name: Claas Leiner (@claasleiner)
Original Redmine Issue: 19046
Affected QGIS version: 2.18.20
Redmine category:processing/modeller

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Dear developers,

Since qgis 2.19 QGIS models can not be closed after processing without QGIS crashes.
Occurs on Linux, Windows, Mac

This significantly limits the usability of the LTR-QGIS for power-users.
In addition to bug report # 18939, I'd like to suggest giving this bug a high priority.

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Ein Fehler trat bei der Ausführung von Python-Code auf:

RuntimeError: maximum recursion depth exceeded
Traceback (most recent call last):
File "/usr/share/qgis/python/plugins/processing/gui/ProcessingToolbox.py", line 163, in updateProvider
item.refresh()
File "/usr/share/qgis/python/plugins/processing/gui/ProcessingToolbox.py", line 377, in refresh
Processing.updateAlgsList()
File "/usr/share/qgis/python/plugins/processing/core/Processing.py", line 184, in updateAlgsList
Processing.reloadProvider(p.getName())
File "/usr/share/qgis/python/plugins/processing/core/Processing.py", line 189, in reloadProvider
algList.reloadProvider(providerName)
File "/usr/share/qgis/python/plugins/processing/core/alglist.py", line 55, in reloadProvider
p.loadAlgorithms()
File "/usr/share/qgis/python/plugins/processing/core/AlgorithmProvider.py", line 56, in loadAlgorithms
self._loadAlgorithms()
File "/usr/share/qgis/python/plugins/processing/modeler/ModelerAlgorithmProvider.py", line 76, in _loadAlgorithms
self.loadFromFolder(f)
File "/usr/share/qgis/python/plugins/processing/modeler/ModelerAlgorithmProvider.py", line 86, in loadFromFolder
alg = ModelerAlgorithm.fromFile(fullpath)
File "/usr/share/qgis/python/plugins/processing/modeler/ModelerAlgorithm.py", line 641, in fromFile
alg = ModelerAlgorithm.fromJsonFile(filename)
File "/usr/share/qgis/python/plugins/processing/modeler/ModelerAlgorithm.py", line 630, in fromJsonFile
alg = ModelerAlgorithm.fromJson(s)
File "/usr/share/qgis/python/plugins/processing/modeler/ModelerAlgorithm.py", line 623, in fromJson
raise WrongModelException(e.args[0])
RuntimeError: maximum recursion depth exceeded

Python-Version: 2.7.12 (default, Dec 4 2017, 14:50:18) [GCC 5.4.0 20160609]
QGIS-Version: 2.18.20 Las Palmas, e8e15d5

Python-Pfad:
/usr/share/qgis/python/plugins/processing
/usr/share/qgis/python
/home/leiner/.qgis2/python
/home/leiner/.qgis2/python/plugins
/usr/share/qgis/python/plugins
/usr/lib/python2.7
/usr/lib/python2.7/plat-x86_64-linux-gnu
/usr/lib/python2.7/lib-tk
/usr/lib/python2.7/lib-old
/usr/lib/python2.7/lib-dynload
/usr/local/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/PILcompat
/usr/lib/python2.7/dist-packages/gtk-2.0
/home/leiner/.qgis2//python

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Related issue(s): #26709 (duplicates)
Redmine related issue(s): 18877

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[qgib]

Author Name: Giovanni Manghi (@gioman)

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do you mean "2.18.19"?

Can you add exact steps on how replicate the issue? thanks.

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Claas Leiner (@claasleiner)

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Hi Giovanni,

Yes i mean 2.18.19

When editing a model, e.g. If a new algorithm is added, the model can still be successfully saved but not closed without the error message coming up. The error message can not be closed. The program must be aborted via the task manager.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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I cannot confirm here (ubuntu 16.04)-

[qgib]

Author Name: Matthias Kuhn (@m-kuhn)

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Pull request pending in #7116

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• status_id was changed from Feedback to In Progress
• pull_request_patch_supplied was changed from 0 to 1

[qgib]

Author Name: Martin Dobias (@wonder-sk)

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• duplicates was configured as Maximum recursion depth exceeded after adding a model or script to the Processing algorithm list (since 2.18.18!) #26709

[qgib]

Author Name: Martin Dobias (@wonder-sk)

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PR merged few days ago - closing.

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• resolution was changed from to fixed/implemented
• status_id was changed from In Progress to Closed