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Maybe that would be useful for <a href="https://github.com/OSGeo/grass/discussions/3501">https://github.com/OSGeo/grass/discussions/3501</a>. We didn’t know where to go with this, but there seems to be a way with what you did
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<div dir="ltr">Edouard Choinière</div>
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<blockquote type="cite">Le 23 mars 2024 à 18:42, Barry Keeling <barryfoxbat1@gmail.com> a écrit :<br>
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<p>Anna, and Hernán (and @grass-users),</p>
<p>Many thanks for your helpful suggestions. In fact you both helped me in finding the solution to the issue I've had getting Grass compiled against a newer Python than the one in the OpenSuse 15.5 base system. Your replies gave me the confidence to pursue
building the Grass application with Python v3.11, and to use a Python virtual environment in doing so.</p>
<p>I'm very happy to report, that today [Sat] I managed to build the latest development release Grass from source, and the python-related errors are now gone :
<br>
</p>
<p>System Info :
<br>
GRASS version: 8.4.0dev <br>
Code revision: exported <br>
Build date: 2024-03-23 <br>
Build platform: x86_64-pc-linux-gnu <br>
GDAL: 3.8.4 <br>
PROJ: 9.3.1 <br>
GEOS: 3.12.1 <br>
SQLite: 3.44.0 <br>
Python: 3.11.8 <br>
wxPython: 4.2.1 <br>
Platform: Linux-5.14.21-150500.55.52-default-x86_64-with-glibc2.31 <br>
</p>
<p>The steps :</p>
<p>1. Build wxPython in a temporary Python v3.11 virtual environment (using this as a go by:
<a class="moz-txt-link-freetext" href="https://wxpython.org/blog/2017-08-17-builds-for-linux-with-pip/index.html">
https://wxpython.org/blog/2017-08-17-builds-for-linux-with-pip/index.html</a> ).</p>
<p> - Note: this was made more difficult because there is a wxPython bug relating to setup on OpenSuse (see this link for details :
<br>
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<p> <a class="moz-txt-link-freetext" href="https://github.com/wxWidgets/Phoenix/issues/1067">
https://github.com/wxWidgets/Phoenix/issues/1067</a>,</p>
<p> and specifically this comment by Frank78 : <a class="moz-txt-link-freetext" href="https://github.com/wxWidgets/Phoenix/issues/1067#issuecomment-685175041">
https://github.com/wxWidgets/Phoenix/issues/1067#issuecomment-685175041</a>)<br>
</p>
<p>2. Create a wheel file, from the wxPython build using pip (still in the same venv).</p>
<p>3. Exit that venv, and then activate my usual Python v3.11 venv, navigate to the the directory containing the new wxPython wheel and install it with pip.</p>
<p>4. Then, still in my usual Python v3.11 venv, change directory to a clean instance of the Grass 8.4 development snapshot I'd downloaded previously.</p>
<p>5. In the bash console, set the following : export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local:/usr/local/lib64</p>
<p>6. Run the configure command with all the required options, then when that finishes successfully ...</p>
<p>7a. set this : export GRASS_RANDOM_SEED=1234</p>
<p>7b. initiate the build with this : make prefix=/usr/local PREFIX=/usr/local -j4</p>
<p>8. The build finished :</p>
<p>GRASS GIS 8.4.0dev exported compilation log<br>
--------------------------------------------------<br>
Started compilation: Sat 23 Mar 15:01:20 GMT 2024<br>
--<br>
Errors in:<br>
No errors detected.<br>
--<br>
Finished compilation: Sat 23 Mar 15:05:17 GMT 2024<br>
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<p>9. Finally, install to the desired directory location (in this case /usr/local/bin and /usr/local/grass84) with this : sudo make install<br>
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<p>10. create a desktop launcher that activates the Python3.11 and runs the /usr/local/bin/grass executable, all in one go with this setting :</p>
<p> Exec=/bin/bash -c 'source ~/.venv/py311env/bin/activate && /usr/local/bin/grass'<br>
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<p>Hopefully the above workflow will be of help to others just beginning to attempt compiling Grass on their Linux system.</p>
<p>Once again, thanks Anna, and Hernán.</p>
<p>Regards,</p>
<p>Barry.<br>
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<div class="moz-cite-prefix">On 22/03/2024 14:00, Anna Petrášová wrote:<br>
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<div dir="ltr">There is GRASS_PYTHON variable you can try. Running GRASS in virtual environment should work too.</div>
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<div dir="ltr" class="gmail_attr">On Thu, Mar 21, 2024 at 2:39 AM Hernán De Angelis via grass-user <<a href="mailto:grass-user@lists.osgeo.org" moz-do-not-send="true" class="moz-txt-link-freetext">grass-user@lists.osgeo.org</a>> wrote:<br>
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<div dir="auto">I understand you are using openSUSE Leap. At the moment I cannot check which Python version is offered there as base. Are you sure you cant install a newer version? If that is not possible you could perhaps install a newer version using your
own separate local environment, using miniforge, for example.
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<div dir="auto"><br>
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<div dir="auto">I use openSUSE Tumbleweed and always build from source. Python 3.11 is the base version now, with 3.12 starting to be rolled in. Perhaps it is not too crazy to try TW?</div>
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<div dir="auto">Good luck!</div>
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<div dir="auto">Hernán </div>
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<div dir="ltr" class="gmail_attr">Den tors 21 mars 2024 01:23Barry Keeling via grass-user <<a href="mailto:grass-user@lists.osgeo.org" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">grass-user@lists.osgeo.org</a>> skrev:<br>
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Hi @grass-users,<br>
<br>
I posted the following on libera.chat#grass but it seemed like there <br>
isn't much activity on there (pls. excuse if I'm wrong on that).<br>
<br>
I spent the day learning how to compile the grass8.4dev source, and <br>
managed to get the app to compile, and fire up<br>
but there's a glitch, it compiled against the system python which is <br>
only v3.6 (not compatible based on REQUIREMENTS file)<br>
and I don't know how to point it at python v3.11.<br>
<br>
This is on OpenSuse 15.5 Linux, btw, and though the Grass application <br>
windows work well, I get errors in the console related mostly to python,<br>
when trying to use the various modules, for example using r.in.png.<br>
<br>
I've tried per-user setting python3 aliased to v3.11 in my .bashrc, but <br>
no luck Grass still shows v3.6 in Help/about/system ..<br>
<br>
I'm wondering whether I should use update-alternatives approach, and <br>
also wondering whether the problem might be related to wxpython3 being <br>
linked to the system python and not v3.11.<br>
<br>
I haven't compiled wxpython separately.<br>
<br>
I'm just hoping someone might be able to point me in the right direction :-)<br>
<br>
Barry<br>
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