Hi Michael,you need to add the python\plugins folder to the pythonpath as well, either in your batch file or PyCharm
Greetings, Benjamin Am 28/06/2022 um 15:17 schrieb Egenolf, Michael via QGIS-Developer:
Dear QGIS-Develeopers,
I was trying to figure out how to get going with the processing modul in Pyqgis.
It seems that I am not able to load the processing tool properly.
1)
I did make a bat file with the right pathes as followed:
@echo off
SET OSGEO4W_ROOT=C:\brk\programme\QGIS 3.16
call %OSGEO4W_ROOT%\bin\o4w_env.bat
call %OSGEO4W_ROOT%\apps\grass\grass78\etc\env.bat
path %path%;%OSGEO4W_ROOT%\apps\qgis-ltr\bin
path %path%;%OSGEO4W_ROOT%\apps\grass\grass78\lib
path %path%;C:\OSGeo4W\apps\qt5\bin
path %path%;C:\OSGeo4W\apps\Python37\Scripts
set PYTHONPATH=%PYTHONPATH%;%OSGEO4W_ROOT%\apps\qgis\python
set PYTHONHOME=%OSGEO4W_ROOT%\apps\Python37
start "Pycharm aware of QGIS" /B
"C:\brk\programme\PyCharm-Community_2021.3\bin\pycharm64.exe" %*
2)
After that I am loading Pycharm and I am using the following interpreter:
C:\brk\programme\QGIS 3.16\bin\python-qgis-ltr.bat
3)
This is my python code I want to run:
from qgis import processing
input = r'dein SHP Layer'
outputWithLayer = 'memory ' # kannst den Layer lokal in einem Ordner speichern
z.B. C:\test\shpfile.shp
def buffer(input, outputWithLayer):
buffer_result = processing.run("native:buffer", {
'INPUT': input,
'DISTANCE': 10000,
# 'DISSOLVE': True,# Falls du alle Polygonen mergen willst
'OUTPUT': outputWithLayer
})
bufferresult = buffer(input, outputWithLayer)
print(bufferresult)
# result_layer = buffer_result['OUTPUT']
# layer = QgsVectorLayer(result_layer,"test","ogr")
# QgsProject.instance().addMapLayer(layer)
4) Result
Stil if I want to import processing as suggested everywhere there will always
fail because the eather the modul is not importet or when I am using the buffer
the run() method is not found:
"C:\brk\programme\QGIS 3.16\bin\python-qgis-ltr.bat"
C:/Users/Egenolf/AppData/Roaming/JetBrains/PyCharmCE2021.3/scratches/Test_Pyqt.py
Traceback (most recent call last):
File
"C:/Users/Egenolf/AppData/Roaming/JetBrains/PyCharmCE2021.3/scratches/Test_Pyqt.py",
line 13, in <module>
import processing
ModuleNotFoundError: No module named 'processing'
Even after an intensive research on stackexchange/ GISstackexchange pages there
is not clear solucion to this point or the solucion is not adapted to Python 3.
Does anybody has a good loading script or some hints on how to solve this
problem?
Best regards
Michael Egenolf
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-- Benjamin Jakimow, Doctoral Researcher Earth Observation Lab | Geography Department | Humboldt-Universität zu Berlin e-mail:benjamin.jaki...@geo.hu-berlin.de phone: +49 (0) 30 2093 6846 mobile: +49 (0) 157 5656 8477 fax: +49 (0) 30 2093 6848 mail: Unter den Linden 6 | 10099 Berlin | Germany room: 2'211 web:https://hu-berlin.de/eo-lab
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