[Qgis-user] [extern] Re: Problem with Python/Qgis

[Gael Kermarrec]

thanks chris for your help. I tried your suggestion, I was able to 
install Qgis but interestingly as I launched it I got immediatly the 
error message

Couldn't load plugin 'crayfish' due to an error when calling its 
initGui() method AttributeError: module 'pyqtgraph' has no attribute 
'GraphicsWindow' Traceback (most recent call last): File 
"/usr/lib/python3/dist-packages/qgis/utils.py", line 448, in startPlugin 
plugins[packageName].initGui() File 
"/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/crayfish/plugin.py", 
line 96, in initGui w = CrayfishPlotWidget(self.plot_dock_widget) File 
"/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/crayfish/gui/plot_widget.py", 
line 186, in __init__ self.gw = pyqtgraph.GraphicsWindow() 
AttributeError: module 'pyqtgraph' has no attribute 'GraphicsWindow' 
Python version: 3.8.10 (default, Nov 22 2023, 10:22:35) [GCC 9.4.0] QGIS 
version: 3.26.3-Buenos Aires Buenos Aires, 65e4edfdad Python Path: 
/usr/share/qgis/python 
/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python 
/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins 
/usr/share/qgis/python/plugins /usr/lib/python38.zip /usr/lib/python3.8 
/usr/lib/python3.8/lib-dynload /usr/local/lib/python3.8/dist-packages 
/usr/lib/python3/dist-packages 
/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python 
/home/kermarrec/.local/share/gis4wrf/python38/local/lib/python3.8/site-packages 
/home/kermarrec/.local/share/gis4wrf/python38/lib/python3/site-packages 
/home/kermarrec/.local/share/gis4wrf/python38/lib/python3.8/site-packages 
. 
/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/vrtbuilderplugin 
/home/kermarrec/.local/share/QGIS/QGIS3/profiles/default/python/plugins/vrtbuilderplugin/vrtbuilder

I have no idea what I could do to solve the problem.

gael.

On 12/12/23 18:36, chris hermansen wrote:
> Gael and list,
>
> On Tue, Dec 12, 2023 at 8:03 AM Gael Kermarrec via QGIS-User 
> <qgis-user at lists.osgeo.org> wrote:
>
>     Dear members,
>
>     I am trying to install Qgis from Ubuntu 20.04 but everytime I make
>     sudo
>     apt install qgis qgis-plugin-grass I become the following:
>
>
>     The following packages contain unsatisfied dependencies:
>     qgis: Depends on python3-qgis (= 1:3.22.16+32focal) but
>     1:3.26.3+32focal-ubuntugis needs to be installed
>     Depends on qgis-providers (= 1:3.22.16+32focal) but
>     1:3.26.3+32focal-ubuntugis needs to be installed
>     Depends on qgis-common (= 1:3.22.16+32focal) but
>     1:3.26.3+32focal-ubuntugis needs to be installed
>     qgis-plugin-grass: Depends on qgis-plugin-grass-common (=
>     1:3.22.16+32focal) but 1:3.26.3+32focal-ubuntugis needs to be
>     installed
>     Depends on grass782
>     E: Unable to correct problems, defective packages are in "keep in the
>     current state" mode.
>
>     I have no idea what I should do to make it works. Maybe somebody
>     had the
>     same problem, I would be grateful to get some support as I would
>     like to
>     work with QGis.
>
> It looks as though you might be trying to work with the ubuntugis 
> PPA.  If that's so, maybe you should consider trying the suggested 
> methodology on the QGIS site here:
>
> https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu
>
> If you just want to correct the unsatisfied dependencies, it's 
> probably worth trying your command again with the "-f" option:
>
> apt install -f qgis qgis-plugin-grass
>
> In any event, I suggest you read this useful mini-tutorial on fixing 
> unsatisfied dependencies.
>
> https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa
> -- 
> Chris Hermansen · clhermansen "at" gmail "dot" com
>
> C'est ma façon de parler.

-- 
-------********---------
Dr. Gael Kermarrec
Institute for meteorology and climatology
Leibniz Universität Hannover
Herrenhäuser Str. 2
D-30419 Hannover
Tel: +49 511 762 2679
Email:kermarrec at meteo.uni-hannover.de
Web:www.meteo.uni-hannover.de
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