<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>@Andrea<br>
Thank you - I posted my case to that issue.<br>
<br>
@Benjamin<br>
Thanks, wow this looks comprehensive. <br>
<br>
I thought of that shutil way but dismissed it, I'd have to try
then for 'python', 'python3'. And it would not work in case<br>
user set up a shell alias (say, python3.9) for the python
executable in their env. <br>
Although in that case they probably know how to install packages
themselves.<br>
<br>
I see shutil tries for the python command here:
<a class="moz-txt-link-freetext" href="https://bitbucket.org/hu-geomatics/enmap-box/src/966a75ffbe903775c03f54e5dc0e663dfb98b2de/enmapbox/dependencycheck.py#lines-166:178">https://bitbucket.org/hu-geomatics/enmap-box/src/966a75ffbe903775c03f54e5dc0e663dfb98b2de/enmapbox/dependencycheck.py#lines-166:178</a><br>
<br>
Did this give you any trouble when you rolled it out to the users?<br>
<br>
Best regards,<br>
Aron<br>
</p>
<div class="moz-cite-prefix">On 06-04-2022 15:17, Benjamin Jakimow
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:b2c2323fdbb08c742d206698818bff43@geo.hu-berlin.de">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p id="reply-intro">Hi Aron,</p>
<p>with the EnMAP-Box plugin we are confronted with missing PIP
packages quite often. Therefore we implemented a "PIP Package
Installer" (screenshot below, source code here: <a
href="https://bitbucket.org/hu-geomatics/enmap-box/src/develop/enmapbox/dependencycheck.py"
moz-do-not-send="true" class="moz-txt-link-freetext">https://bitbucket.org/hu-geomatics/enmap-box/src/develop/enmapbox/dependencycheck.py</a>)</p>
<p>In case of missing admin rights you can use the PIP "--user"
argument to install packages to the user's home folder</p>
<p>D:\OSGeo4W\bin\python3.EXE -m pip install --user lightgbm</p>
<p>The absolute python executable path can be retrieved with
"shutil.which('python') "</p>
<p><br>
</p>
<p><img src="cid:part1.nZEsaZU0.5RI9dZ80@rasterra.nl" class=""></p>
<p><br>
</p>
<p>Greetings,</p>
<p>Benjamin</p>
<p>On 2022-04-06 14:01, Aron Gergely via QGIS-Developer wrote:</p>
<blockquote type="cite" style="padding: 0 0.4em; border-left:
#1010ff 2px solid; margin: 0">
<div id="replybody1">
<div>
<p>@Pedro:<br>
Tried it today on Windows w OSGeo QGIS and failed right
away. But in a different way:<br>
<br>
If I launch OSGeo QGIS and ask for the python executable's
path (sys.executabe), I get 'C:/OSGeo4W/bin/qgis-bin.exe'.
which looks like entry point is for QGIS. So subprocess
calls that and a new QGIS window opens.<br>
<br>
Not feeling like tackling this and probably other cases.<br>
So back to download+including those bins I reckon.<br>
<br>
@Johannes:<br>
Thank you. Yes realizing that now..<br>
<br>
<br>
Cheers,<br>
Aron<br>
<br>
<br>
<br>
</p>
<div class="v1moz-cite-prefix">On 06-04-2022 12:12, Johannes
Kröger (WhereGroup) wrote:</div>
<blockquote type="cite" style="padding: 0 0.4em;
border-left: #1010ff 2px solid; margin: 0">
<p>Trying to find a smart way to install Python
dependencies for the users that will not potentially not
work or even break stuff is a very hard thing(tm). Check
out these two QEPs for a lot of discussion and possible
approaches:<br>
<br>
<a class="v1moz-txt-link-freetext moz-txt-link-freetext"
href="https://github.com/qgis/QGIS-Enhancement-Proposals/issues/202"
target="_blank" rel="noopener noreferrer"
moz-do-not-send="true">https://github.com/qgis/QGIS-Enhancement-Proposals/issues/202</a><br>
<a class="v1moz-txt-link-freetext moz-txt-link-freetext"
href="https://github.com/qgis/QGIS-Enhancement-Proposals/issues/179"
target="_blank" rel="noopener noreferrer"
moz-do-not-send="true">https://github.com/qgis/QGIS-Enhancement-Proposals/issues/179</a></p>
<p>Cheers, Hannes</p>
<div class="v1moz-cite-prefix">Am 06.04.22 um 00:10
schrieb Pedro Camargo via QGIS-Developer:</div>
<blockquote type="cite" style="padding: 0 0.4em;
border-left: #1010ff 2px solid; margin: 0">
<div style="font-family: Verdana, Arial, Helvetica,
sans-serif; font-size: 10pt;">
<div>Hey Aron,</div>
<div> I did explore that route, but
I found out that it would fail when the user did not
have administrator rights (or even if QGIS had not
been ran as administrator on Windows). Did you find
it to be different?</div>
<div> </div>
<div>Cheers,</div>
<div>Pedro</div>
<div> </div>
<div> </div>
<div class="v1zmail_extra">
<div> </div>
<div id="v1Zm-_Id_-Sgn1">---- On Wed, 06 Apr 2022
03:28:09 +1000 <strong>Aron Gergely <a
class="v1moz-txt-link-rfc2396E"
href="mailto:aron.gergely@rasterra.nl"
rel="noreferrer" moz-do-not-send="true"><aron.gergely@rasterra.nl></a></strong>
wrote ----</div>
<div> </div>
<blockquote style="border-left: 1px solid #cccccc;
padding-left: 6px; margin: 0px 0px 0px 5px;">
<div>
<p>Thank you, I checked out your plugin - yes
that seems also a good way.<br>
I already had the logic to detect, throw
message, guide to dialog, etc... implemented
similar to yours.<br>
<br>
But I wanted to let pip manage the actual
package, so I went with the subprocess+pip
route. Here is a minimum working example:</p>
<pre style="background-color: #2b2b2b; color: #a9b7c6; font-family: 'JetBrains Mono', monospace; font-size: 9.8pt;"><span class="v1colour" style="color: #cc7832;">import </span>subprocess
<span class="v1colour" style="color: #cc7832;">import </span>sys
<span class="v1colour" style="color: #cc7832;">try</span>:
subprocess.check_call((sys.executable<span class="v1colour" style="color: #cc7832;">, </span><span class="v1colour" style="color: #6a8759;">'-m'</span><span class="v1colour" style="color: #cc7832;">, </span><span class="v1colour" style="color: #6a8759;">'pip'</span><span class="v1colour" style="color: #cc7832;">, </span><span class="v1colour" style="color: #6a8759;">'install'</span><span class="v1colour" style="color: #cc7832;">, </span><span class="v1colour" style="color: #6a8759;">'h3<=3.99'</span>))
<span class="v1colour" style="color: #cc7832;">except </span>subprocess.CalledProcessError <span class="v1colour" style="color: #cc7832;">as </span>e:
<span class="v1colour" style="color: #cc7832;">raise </span>e <span class="v1colour" style="color: #808080;"># handle any errors here instead</span>
</pre>
<p>I connected it to a button in a dialog. And
catch stdout, stderr and the exit code of the
subprocess so I can show the user what is
happening.<br>
<br>
Have not yet tried on other platforms than
Linux. But sys.executable is there to solve
the ambiguity of python executable path.<br>
<br>
<br>
Best regards,<br>
Aron<br>
<br>
<br>
</p>
</div>
</blockquote>
</div>
</div>
</blockquote>
<pre class="v1moz-signature">--
Johannes Kröger / GIS-Entwickler/-Berater
---------------------------------------------
Schon gewusst?
In unserem Blog geben wir Tipps & Tricks zu Open-Source-GIS-Software
und berichten aus unserem Experten-Alltag:
<a class="v1moz-txt-link-freetext moz-txt-link-freetext" href="https://wheregroup.com/blog/" target="_blank" rel="noopener noreferrer" moz-do-not-send="true">https://wheregroup.com/blog/</a>
---------------------------------------------
WhereGroup GmbH
Grevenweg 89
20537 Hamburg
Germany
Tel: +49 (0)228 / 90 90 38 - 36
Fax: +49 (0)228 / 90 90 38 - 11
<a class="v1moz-txt-link-abbreviated v1moz-txt-link-freetext moz-txt-link-freetext" href="mailto:johannes.kroeger@wheregroup.com" rel="noreferrer" moz-do-not-send="true">johannes.kroeger@wheregroup.com</a>
<a class="v1moz-txt-link-abbreviated" href="http://www.wheregroup.com" target="_blank" rel="noopener noreferrer" moz-do-not-send="true">www.wheregroup.com</a>
Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885
-------------------------------
</pre>
</blockquote>
<div class="v1moz-signature">-- <br>
Kind Regards,<br>
<br>
Aron Gergely<br>
+31 (0) 6 38 70 97 66<br>
<br>
<strong>Rasterra</strong> | <a
class="v1moz-txt-link-abbreviated"
href="http://www.rasterra.nl" target="_blank"
rel="noopener noreferrer" moz-do-not-send="true">www.rasterra.nl</a><a
moz-do-not-send="true"><br>
</a></div>
</div>
</div>
<br>
<div class="pre" style="margin: 0; padding: 0; font-family:
monospace">_______________________________________________<br>
QGIS-Developer mailing list<br>
<a href="mailto:QGIS-Developer@lists.osgeo.org"
moz-do-not-send="true" class="moz-txt-link-freetext">QGIS-Developer@lists.osgeo.org</a><br>
List info: <a
href="https://lists.osgeo.org/mailman/listinfo/qgis-developer"
target="_blank" rel="noopener noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://lists.osgeo.org/mailman/listinfo/qgis-developer</a><br>
Unsubscribe: <a
href="https://lists.osgeo.org/mailman/listinfo/qgis-developer"
target="_blank" rel="noopener noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://lists.osgeo.org/mailman/listinfo/qgis-developer</a></div>
</blockquote>
<p><br>
</p>
<div id="signature">-- <br>
<div class="pre" style="margin: 0; padding: 0; font-family:
monospace">--<br>
Benjamin Jakimow, Doctoral Researcher<br>
Earth Observation Lab | Geography Department |
Humboldt-Universität zu Berlin<br>
<br>
e-mail: <a href="mailto:benjamin.jakimow@geo.hu-berlin.de"
moz-do-not-send="true" class="moz-txt-link-freetext">benjamin.jakimow@geo.hu-berlin.de</a><br>
<br>
phone: +49 (0) 30 2093 6894<br>
mobile: +49 (0) 157 5656 8477<br>
fax: +49 (0) 30 2093 6848<br>
mail: Unter den Linden 6 | 10099 Berlin | Germany<br>
room: 2'222</div>
</div>
</blockquote>
<div class="moz-signature">-- <br>
<title>Email Signature</title>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
Kind Regards,<br>
<br>
Aron Gergely<br>
+31 (0) 6 38 70 97 66<br>
<br>
<b>Rasterra</b> | <ahref="https: www.rasterra.nl"=""><a class="moz-txt-link-abbreviated" href="http://www.rasterra.nl">www.rasterra.nl</a><a><br>
</a></ahref="https:></div>
</body>
</html>