Dear Stefan, The GRASS version is 8.4.1. and the simple commands I used are the ones in my previous email. You helped me solve the problem; I had not added the addons and "C:\Program Files\GRASS GIS 7.8\scripts" into the PATH variable. Now I did and it solved the mistake. Thank you very much!
Cheers, Camille Le ven. 15 janv. 2021 à 15:08, Stefan Blumentrath < [email protected]> a écrit : > Dear Camille, > > > > I don`t get that error in GRASS 7.8.3 with your example. > > > > Can you post the exact command (if it was different from your example), > and GRASS version as well as OS? > > Addons need to be on your PATH / ADDON_PATH. > > > > Cheers > > Stefan > > > > > > *From:* grass-user <[email protected]> *On Behalf Of *Cam > Morlus > *Sent:* fredag 15. januar 2021 11:37 > *To:* [email protected] > *Subject:* [GRASS-user] Can't use simple GRASS modules in python when not > using ".py" in module call > > > > Dear All, > > > I am using grass 7.8.4. I'm trying to run some simple commands using the > Grass Python Scripting Library in Python. For modules for which the source > code is written in C or any other language than Python, it works without > problem but for the modules written in Python it does not. Here is an > example of a simple command I tried to run: > > import grass.script as gscript > gscript.run_command("v.db.dropcolumn", flags="help") > > > It raises the error: > > grass.exceptions.CalledModuleError: Module run None v.db.dropcolumn --help > ended with error. > Process ended with non-zero return code 9009 > > > > I already checked and I know that return code 9009 means it does not find > the python script. I solved the error by just adding ".py" in the command: > > gscript.run_command("v.db.dropcolumn.py > <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fv.db.dropcolumn.py%2F&data=04%7C01%7C%7C6777bf389f194dc3954a08d8b941928a%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637463038877120044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ra6Nu%2FwP%2BDmHIPxzKtlzwo%2FzLJuve01OwcqqXQweW7k%3D&reserved=0>", > flags="help") > > > > I would like the command to work without the ".py" because I'm writing a > python script that makes use of some addons. For the addons to work in my > python script I sometimes need to modify them because there are running > commands like "v.db.dropcolumn" without the ".py", so I have to add it. But > then, the addons do not work anymore when I use them directly in the grass > GUI. I tried to use pygrass and it also raises an error if I'm using > Module("v.db.dropcolumn") instead of Module("v.db.dropcolumn.py > <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fv.db.dropcolumn.py%2F&data=04%7C01%7C%7C6777bf389f194dc3954a08d8b941928a%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637463038877120044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ra6Nu%2FwP%2BDmHIPxzKtlzwo%2FzLJuve01OwcqqXQweW7k%3D&reserved=0> > "). > > > > Does anybody know how to solve this? > > > > Thank you in advance for the answer, > > > > Best, > > > > Camille Morlighem >
_______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
