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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Camille,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Great resources to start with are:<o:p></o:p></span></p>
<p class="MsoNormal"><a href="https://github.com/wenzeslaus/python-grass-addon"><span lang="EN-US">wenzeslaus/python-grass-addon: How to write a Python GRASS GIS 7 addon (github.com)</span></a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">and<o:p></o:p></span></p>
<p class="MsoNormal"><a href="https://github.com/wenzeslaus/r.example.plus"><span lang="EN-US">wenzeslaus/r.example.plus: An example of a GRASS GIS module for processing rasters (github.com)</span></a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">If you want your module to return not maps or tables but output on stdout (what read_command() captures), just use the print() function in python.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hope that helps to get started!?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If there is a module that has a UI that could be a good template for what you want to do, you can use e.g. “r.info –script” to get a script template for the UI and general content.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cheers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Stefan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> grass-user <grass-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Cam Morlus<br>
<b>Sent:</b> torsdag 14. januar 2021 21:23<br>
<b>To:</b> grass-user@lists.osgeo.org<br>
<b>Subject:</b> [GRASS-user] How to create a GRASS addon that returns something when using read_command()<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dear All, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am using grass 7.8.4. I'm calling commands externally using the Grass Python Scripting Library in Python. I wanted to know when you create an addon in python how to end the addon script so that when you call that addon with read_command() it
returns something. I would like to have something similar to what happens when calling read_command(g.gisenv) which returns the grass variables settings so that you can store them into a variable. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank you in advance for your answer. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Camille Morlighem <o:p></o:p></p>
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