problem to set the colour of the 0 column

[FaTr]

Hi
When i colour the column 1 of QTableWidget I have no issue at all. see the picture

once i change the coloumn in the cycle for number at 0

self.ui.table_testpoint.item(r, 0).setBackground(QtGui.QColor(204, 255, 255))

I have the error : AttributeError: 'NoneType' object has no attribute 'setBackground'

below my code. Please dont look the indentations.

with open(namefile, newline='') as csvfile:
				
    reader = csv.DictReader(csvfile)
    self.ui.table_testpoint.setRowCount(lines)  #insert the index coloum in the table
				
    r = 0

    for row in reader:
			
        self.ui.table_testpoint.setItem(r, 1, QTableWidgetItem(row["V1"]))
        self.ui.table_testpoint.setItem(r, 3, QTableWidgetItem(row["V2"]))
        self.ui.table_testpoint.setItem(r, 5, QTableWidgetItem(row["Freq"]))
        self.ui.table_testpoint.setItem(r, 6, QTableWidgetItem(row["load"]))
        self.ui.table_testpoint.setItem(r, 11, QTableWidgetItem(row["StepTime"]))
        try:
	    self.ui.table_testpoint.item(r, 0).setBackground(QtGui.QColor(204, 255, 255))
        except:
	    print(f"no color set for row {r}")
         r +=1

[jsulm]

@FaTr You do not set any items in column 0 as far as I can see (so item(r, 0) returns None), that is why you get this error.