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<font face="Ubuntu">Hi Mélanie,<br>
<br>
Thanks for the script, I was able to reproduce the segmentation
fault with a dummy gpkg I made.<br>
<br>
After some investigations, it seems that the symbol named
"style_layer" used in<br>
1. the addSymbol() method for the first layer<br>
2. & 3. the QgsRendererCategory() constructor for the
second and third layer<br>
is None (nullptr -> hence the segfault).<br>
<br>
If I add the following<br>
<br>
</font><font face="Ubuntu"> if style_layer is None:<br>
style_layer =
QgsSymbol.defaultSymbol(Layer_Pressure_Center.geometryType())<br>
<br>
just before using style_layer as a safe check (for each layer of
course) everything works fine.<br>
Maybe it's simply because I don't have these symbols
pre-configured, but it's worth the check on your side.<br>
<br>
Also, I encapsulated the code like this, which prevents another
segfault to occur due to local/global scope stuff I think:<br>
<br>
---<br>
<br>
all imports<br>
<br>
def main():<br>
the main code<br>
<br>
if__name__ == '__main__':<br>
set prefix path<br>
create qgs application<br>
append plugins path to sys.path and import processing stuff<br>
main()<br>
qgs.exitQgis()<br>
<br>
---<br>
<br>
<br>
Regards,<br>
Jacky<br>
<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">Le 28/10/2022 à 17:10, Mélanie Dol via
QGIS-Developer a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:3e64046b-dddc-4c81-4eca-2274110ee959@sat-ocean.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Hi Jacky,<br>
<br>
Yes of course. Please find attached my script.<br>
<br>
Regards,<br>
<br>
Mélanie<br>
<br>
<div class="moz-cite-prefix">On 10/28/22 4:55 PM, Jacky Volpes via
QGIS-Developer wrote:<br>
</div>
<blockquote type="cite"
cite="mid:a384c6a6-231f-818e-c372-9184d116fed2@oslandia.com">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
<font face="Ubuntu">Hi Mélanie,<br>
<br>
Have you initialized your standalone script as shown in <a
class="moz-txt-link-freetext"
href="https://docs.qgis.org/3.22/en/docs/pyqgis_developer_cookbook/intro.html#using-pyqgis-in-standalone-scripts"
moz-do-not-send="true">https://docs.qgis.org/3.22/en/docs/pyqgis_developer_cookbook/intro.html#using-pyqgis-in-standalone-scripts</a>
?<br>
<br>
Best regards,<br>
Jacky<br>
<br>
</font><br>
<div class="moz-cite-prefix">Le 28/10/2022 à 16:40, Mélanie Dol
via QGIS-Developer a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:742f80e5-e96e-245f-c1d4-93fe694b7c37@sat-ocean.com">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
Hi Andrea,<br>
<br>
Thank you. I've updated with QGIS 3.26 Buenos Aires. The
warning message have disappeared. Unfortunately, the script
still generates a segmentation fault.<br>
<br>
Best regards,<br>
<br>
Mélanie Dol<br>
<br>
<div class="moz-cite-prefix">On 10/28/22 11:47 AM, Andrea
Giudiceandrea via QGIS-Developer wrote:<br>
</div>
<blockquote type="cite"
cite="mid:bec35ce9-a7eb-0757-3b15-1431307d5053@libero.it">
<meta http-equiv="Content-Type" content="text/html;
charset=UTF-8">
Il 27/10/2022 16:34, Mélanie Dol via QGIS-Developer ha
scritto:<br>
<blockquote type="cite"
cite="mid:a7be7c28-51d0-d7e9-d55f-a8f2be904089@sat-ocean.com">
<meta http-equiv="content-type" content="text/html;
charset=UTF-8">
<font color="#e11111">/usr/share/qgis/python/plugins/processing/algs/grass7/Grass7Utils.py:191:
SyntaxWarning: "is" with a literal. Did you mean "=="?<br>
if path is '':</font><br>
</blockquote>
<br>
Hi Mélanie,<br>
while I don't know why that script generates a segmentation
fault, It seems you are using QGIS 3.10 which is a three
years old version. The QGIS repository for Ubuntu 20.04
currently offers the latest available QGIS LTR 3.22.12.<br>
<br>
Best regards.<br>
<br>
Andrea Giudiceandrea<br>
<br>
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Ingénieur SIG - Oslandia</pre>
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