RuntimeError: wrapped C/C++ object of type RasterizeStringAlgorithm has been deleted

[belliniAndre]

Hello good afternoon!
It is a pleasure to speak with you, and at the same time inform and perhaps contribute to make the rasterizestgring plugin the expected success. These three days have been tense for me. Tense why? for not being an expert in IT or programming languages, and reading errors is sometimes compromised.

Even because, what I was trying to do was a simple change in a Qgis SRC configuration, and the TAUDEM validation in the Qgis provider manager. As you can see nothing related to Plugins. And it was just uninstalling the plugin of his creation, that everything returned to normal operation .......!

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RuntimeError: wrapped C/C++ object of type RasterizeStringAlgorithm has been deleted

Traceback (most recent call last):
File "C:/Users/belli/AppData/Roaming/QGIS/QGIS3\profiles\default/python/****plugins\rasterizestring\rasterize_string_provider.py", line 60, in loadAlgorithms
self.addAlgorithm( alg )
RuntimeError: wrapped C/C++ object of type RasterizeStringAlgorithm has been deleted

Versão do Python: 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)]
Versão do QGIS: 3.10.11-A Coruña A Coruña, d2171173e4

[MathieuChailloux]

Hello Andre,

Thanks for feedback.
I don't understand when this error happens, you were working on something else ?
This error is a bad initialization so I guess rasterizestring was not installed after this but did it work to exit QGIS and relaunch it ?

This is due to bindings to C++ object in the GUI so this is hard to control this behavior, I remember dealing with it in another plugin and exiting/relaunching QGIS worked.

Regards,
Mathieu

[belliniAndre]

Thank you very much for responding! So, this was my great difficulty to understand what was happening. If I am not using the rasteristring plugin, then how can the error occur, and even more because I am trying to make a configuration change in the Qgis SRC window? And to my surprise, when trying to activate OTB and TAUDEN in the toolbox, as soon as I clicked "OK" the same error was reported. I don't even come close to being an expert in programming language or IT. But sometimes we have to try a little bit so that we don't depend on other people. And I was only able to begin to understand the problem through this forum. And the discussions there show that the problem occurs not only with your plugin, but with those who use the method in a for loop, as I said, I don't understand IT and I don't even know if it's the case with your plugin. Thank you very much and I hope I contributed to the improvement of your plugin. And any reading difficulties forgive me, as I don't speak your language, so I have to use an online translator. (forum: https://gis.stackexchange.com/questions/345163/runtimeerror-wrapped-c-c-object-of-type-x-has-been-deleted-in-qgis-plugin) Enviado do Correio para Windows 10 De: MathieuChailloux Enviado: sexta-feira, 4 de dezembro de 2020 11:15 Para: MathieuChailloux/rasterizestring Cc: belliniAndre; Author Assunto: Re: [MathieuChailloux/rasterizestring] RuntimeError: wrapped C/C++object of type RasterizeStringAlgorithm has been deleted (#1) Hello Andre, Thanks for feedback. I don't understand when this error happens, you were working on something else ? This error is a bad initialization so I guess rasterizestring was not installed after this but did it work to exit QGIS and relaunch it ? This is due to bindings to C++ object in the GUI so this is hard to control this behavior, I remember dealing with it in another plugin and exiting/relaunching QGIS worked. Regards, Mathieu — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[Gustry]

The error is in the provider.
You should remove the variable self.alglist https://github.com/MathieuChailloux/rasterizestring/blob/master/rasterize_string_provider.py#L44..L47 and call self.addAlgorithm( YourAlg() ).