Why does my PyQGIS standalone script not work

Question

I wrote a pyqgis script that should iterate over a folder with xyz files, check if the bouding box overlaps with a polygon in my QGIS project and if yes, it should copy the file into a new folder.

I don't get an error message but nothing happens either. My output Folder remains empty. I just don't see the problem. Can someone please help me find the error, I've already spent too much time on this.

def moveFiles(self):
 mask = self.getBoundingBox() #BoundingBox of polygon layer
 inputDir = self.dlg.input_folder.text() #directory of xyz files - "Users/denni/Desktop/xyz_data"
 outDir = self.dlg.output_folder.text() #output directory - "C:/Users/denni/Desktop/output/"
 crs = "EPSG:25832"
 for file in glob.glob("*.xyz"):
 uri = "file:///" + inputDir +"/"+ file + "?type=csv&delimiter=%s&crs=%s&xField=%s&yField=%s" % (" ", crs, "field_1", "field_2")
 name = file.replace('.xyz', '')
 lyr = QgsVectorLayer(uri, name, "delimitedtext")
 lyr.selectAll()
 lyr.boundingBoxOfSelected()
 outputPath = outDir + file
 self.iface.addVectorLayer(file)
 if mask.xMinimum() <= lyr.xMinimum() <= mask.xMaximum() and mask.yMinimum() <= lyr.yMinimum() <= mask.yMaximum():
 QgsVectorFileWriter.writeAsVectorFormat(lyr, outputPath, 'utf-8', lyr.crs(), "CSV", layerOptions='GEOMETRY=AS_XYZ')
 if mask.xMinimum() <= lyr.xMaximum() <= mask.xMaximum() and mask.yMinimum() <= lyr.yMinimum() <= mask.yMaximum():
 QgsVectorFileWriter.writeAsVectorFormat(lyr, outputPath, 'utf-8', lyr.crs(), "CSV", layerOptions='GEOMETRY=AS_XYZ')
 if mask.xMinimum() <= lyr.xMaximum() <= mask.xMaximum() and mask.yMinimum() <= lyr.yMaximum() <= mask.yMaximum():
 QgsVectorFileWriter.writeAsVectorFormat(lyr, outputPath, 'utf-8', lyr.crs(), "CSV", layerOptions='GEOMETRY=AS_XYZ')
 if mask.xMinimum() <= lyr.xMinimum() <= mask.xMaximum() and mask.yMinimum() <= lyr.yMaximum() <= mask.yMaximum():
 QgsVectorFileWriter.writeAsVectorFormat(lyr, outputPath, 'utf-8', lyr.crs(), "CSV", layerOptions='GEOMETRY=AS_XYZ')

I'm using QGIS 3.4

Answer 1

Type of layerOptions should be list of strings, not just string. Try to change layerOptions='GEOMETRY=AS_XYZ' as layerOptions=['GEOMETRY=AS_XYZ'].

writeAsVectorFormat documentation:

writeAsVectorFormat(..., layerOptions: Iterable[str] = [], ...)

• DGIS: The next error message is strange again. Its telling me ''QgsVectorLayer' object has no attribute 'xMinimum" But mask = self.getBoundingBox() gets the bounding box as a QgsRectangle and according to the documentation (qgis.org/api/…) I can access the xMinimum with xMinimum(). Any ideas what the problem here is?
• Kadir Şahbaz: The error is about lyr.xMinimum(), not mask.xMinimum.
• Kadir Şahbaz: Use extent = lyr.extent(), then if mask.xMinimum() <= extent.xMinimum().
• DGIS: That solved the 2nd problem, thank you very much! There was also a 3rd problem that I had to use elif instead of if. But now it finally works