Hi,
I don't know what's wrong, but when I had similar problems, switching to
Python 3.12 solved them for me.
Cheers,
Björn
On 21.07.2025 16:58, Alessandro Pasotti via QGIS-Developer wrote:
Hi,
I am trying to build QGIS with QT6 on Ubuntu (tried 24.10 and 25.04),
it builds without errors but when I run it, the following error
appears:
Couldn't load PyQGIS.
Python support will be disabled.
Traceback (most recent call last):
File "", line 1, in
File
"/home/ale/dev/QGIS/build/Desktop_QT6-Debug/output/python/qgis/gui/__init__.py",
line 25, in
from qgis._gui import *
RuntimeError: qgis._gui cannot import type '���A� ' from
PyQt6.QtCore
Python version:
3.13.3 (main, Jun 16 2025, 18:15:32) [GCC 14.2.0]
QGIS version:
3.99.0-Master 'Master', e717e3cd2b9
Python path:
['/home/ale/dev/QGIS/build/Desktop_QT6-Debug/output/python',
'/home/ale/.local/share/QGIS/QGIS3/profiles/default/python',
'/home/ale/.local/share/QGIS/QGIS3/profiles/default/python/plugins',
'/home/ale/dev/QGIS/build/Desktop_QT6-Debug/output/python/plugins',
'/home/ale/dev/gdal/desktop-install/local/lib/python3.13/dist-packages',
'/home/ale/dev/gdal/autotest/pymod', '/usr/lib/python313.zip',
'/usr/lib/python3.13', '/usr/lib/python3.13/lib-dynload',
'/usr/local/lib/python3.13/dist-packages',
'/usr/lib/python3/dist-packages']
I checked the QGIS/build/Desktop_QT6-Debug/output/python/qgis content
and it looks legit.
PyQt6 installation also looks ok, importing core works ok, only gui
does not work.
Any idea about what's going wrong?
--
Alessandro Pasotti
QCooperative: www.qcooperative.net [1]
ItOpen: www.itopen.it [2]
Links:
------
[1] https://www.qcooperative.net
[2] http://www.itopen.it
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