Only show check box for Boolean Values

I'm doing an implementation of a CheckBox that inherits from QSyledItemDelegate, to put it into a QTableView.

The problem is that I am only trying to show the checkbox for Boolean Values, but it's show both the check box and "true" or "false."

Here is my code for my delegate, where it is marked "TODO: Make the bool character more optimal" is where I believe I need to edit the implementation:

def createEditor(self, parent, option, index):
            """ Creates the widget used to change data from the model and can be
            reimplemented to customize editing behavior"""
            data = index.internalPointer()

            if type(data) == Property:
                if index.column() == 1:
                    t = data.getType()
                    if t == str:
                        return QLineEdit(parent)
                    elif t == int:
                        return QSpinBox(parent)
                    elif t == bool:
                        # TODO: Make the bool character more optimal
                        return QCheckBox(parent)
                    elif t == float:
                        return QDoubleSpinBox(parent)
                    else:
                        #TODO:Handle drop down menus later
                        pass
            return QStyledItemDelegate.createEditor(self, parent, option, index)


        def setEditorData(self, editor, index):
            """ Provides the widget with data to manipulate."""
            data = index.internalPointer()

            if type(data) == Property:
                value = data.getValue()
                if index.column() == 1:
                    t = data.getType()
                    if t == str:
                        editor.setText(value)
                    elif t == int:
                        editor.setValue(value)
                    elif t == bool:
                        # TODO: Make the bool character more optimal
                        editor.setChecked(value)
                    elif t == float:
                        editor.setValue(value)
                    else:
                        # TODO:Handle drop down menus later
                        pass

        def setModelData(self, editor, model, index):
            """ Returns updated data to the model"""
            data = index.internalPointer()

            if type(data) == Property:

                if index.column() == 1:
                    t = data.getType()
                    if t == str:
                        data.setValue(editor.text())
                    elif t == int:
                        data.setValue(editor.value())
                    elif t == bool:
                        # TODO: Make the bool character more optimal
                        data.setValue(editor.isChecked())
                    elif t == float:
                        data.setValue(editor.value())
                    else:
                        # TODO:Handle drop down menus later
                        pass

I would appreciate proper instruction, I am super new to Qt and have only being programming in Python for 4 months.