How to insert QWidgets in the middle of a Layout?

Question

I\'m using the Qt framework to build my graphical user interface. I use a QGridLayout to position my QWidgets neatly.
The GUI looks like this:

My

Answer 1

Thank you @ekhumoro, @Stuart Fisher, @vahancho and @mbjoe for your help. I eventually found a way to solve the issue. I no longer use the QGridLayout(). Instead, I built a wrapper around the QVBoxLayout to behave as if it was a GridLayout, with an extra function to insert new rows:

class CustomGridLayout(QVBoxLayout):
    def __init__(self):
        super(CustomGridLayout, self).__init__()
        self.setAlignment(Qt.AlignTop)  # !!!
        self.setSpacing(20)


    def addWidget(self, widget, row, col):
        # 1. How many horizontal layouts (rows) are present?
        horLaysNr = self.count()

        # 2. Add rows if necessary
        if row < horLaysNr:
            pass
        else:
            while row >= horLaysNr:
                lyt = QHBoxLayout()
                lyt.setAlignment(Qt.AlignLeft)
                self.addLayout(lyt)
                horLaysNr = self.count()
            ###
        ###

        # 3. Insert the widget at specified column
        self.itemAt(row).insertWidget(col, widget)

    ''''''

    def insertRow(self, row):
        lyt = QHBoxLayout()
        lyt.setAlignment(Qt.AlignLeft)
        self.insertLayout(row, lyt)

    ''''''

    def deleteRow(self, row):
        for j in reversed(range(self.itemAt(row).count())):
            self.itemAt(row).itemAt(j).widget().setParent(None)
        ###
        self.itemAt(row).setParent(None)

    def clear(self):
        for i in reversed(range(self.count())):
            for j in reversed(range(self.itemAt(i).count())):
                self.itemAt(i).itemAt(j).widget().setParent(None)
            ###
        ###
        for i in reversed(range(self.count())):
            self.itemAt(i).setParent(None)
        ###

    ''''''