I'm facing a problem with QgsMapLayer. I want to use it on QGIS in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of PyQGIS. This is the script I'm using:

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash','Color': 'red'})
symbol= lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here is the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

I have QGIS 3.22

Is there is any solution for that?

In QGIS 3.22 I'm facing a problem with QgsMapLayer. I want to use it on QGIS in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of PyQGIS. 

This is the script I'm using:

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash', 'Color': 'red'})
symbol = lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here is the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

Is there is any solution for that?

I'm facing a problem with QgsMapLayer. I want to use it on QGIS in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of PyQGIS. This is the script I'm using:

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash','Color': 'red'})
symbol= lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here it is, the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

I have QGIS 3.22

Is there is any solution for that?

I'm facing a problem with QgsMapLayer. I want to use it on QGIS in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of PyQGIS. This is the script I'm using:

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash','Color': 'red'})
symbol= lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here is the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

I have QGIS 3.22

Is there is any solution for that?

I'm facing a problem with QgsMapLayer , I want to use it on qgis in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of pyqgis ,This is the script I'm using  :

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash','Color': 'red'})
symbol= lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here it is, the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

I have Qgis 3.22

Is there is any solution for that?

I'm facing a problem with QgsMapLayer. I want to use it on QGIS in order to modify the symbology of line, point & polygon in each layer but every time it gives me an error on using the library of PyQGIS. This is the script I'm using:

from PyQt5.QtGui import *
from qgis.core import * 

lyr = QgsVectorLayer("PATH", 'ligne', 'ogr')
QgsProject.instance().addMapLayer(lyr)
sym = QgsLineSymbol.createSimple({'Line_style': 'dash','Color': 'red'})
symbol= lyr.QgsMapLayer.createMapRenderer().symbols(QgsRenderContext())
sym = symbols[0]
lyr.triggerRepaint()

And here it is, the error message:

AttributeError: 'QgsVectorLayer' object has no attribute 'QgsMapLayer'

I have QGIS 3.22

Is there is any solution for that?