在pyqt5 ListWidget中引用单个儿童小部件

Question

我有很多小部件要添加到qlistwidget中。到目前为止，该代码似乎正在起作用，如果不是因为它看起来不像小部件本身或其他小部件可以引用小部件，因为我是如何用笨拙的循环构造的：

for i in self.csv:
                self.constructListItem(i,
                                       type,
                                       {
                                       'Option1':[False],
                                       'Option2':[True,'desc1'],
                                       'Option3':[True,'desc2'],
                                       'Option4':[False],
                                        })

where code> self。 constructListItem 看起来像这样：

def constructListItem(self, columnName, defaultOption, listOptions):
        listFeatureWidget = QtWidgets.QListWidgetItem()
        featureWidget = QtWidgets.QWidget()
        #widget details
        featureWidget.setStyleSheet('background-color:transparent')
        featureWidget.setGeometry(QtCore.QRect(50, 210, 901, 91))
        featureWidget.setObjectName("featureWidget")
        verticalLayout = QtWidgets.QVBoxLayout(featureWidget)
        verticalLayout.setContentsMargins(0, 0, 0, 0)
        verticalLayout.setSpacing(0)
        verticalLayout.setObjectName("verticalLayout")
        feature = QtWidgets.QWidget(featureWidget)
        feature.setObjectName("feature")
        horizontalLayout_8 = QtWidgets.QHBoxLayout(feature)
        horizontalLayout_8.setObjectName("horizontalLayout_8")
        featureLabel = QtWidgets.QLabel(feature)
        featureLabel.setObjectName("featureLabel")
        featureLabel.setText(columnName)
        horizontalLayout_8.addWidget(featureLabel)
        comboBox = QtWidgets.QComboBox(feature)
        comboBox.setStyleSheet('background-color:white')
        comboBox.setObjectName("comboBox")
        comboBox.currentTextChanged.connect(updateSelf)
        #add items from dict into comboBox
        for i in listOptions.keys():
            comboBox.addItem(i)
        comboBox.setCurrentIndex(defaultOption)
        horizontalLayout_8.addWidget(comboBox)
        verticalLayout.addWidget(feature)
        parameterWidget = QtWidgets.QWidget(featureWidget)
        parameterWidget.setObjectName("parameterWidget")
        horizontalLayout = QtWidgets.QHBoxLayout(parameterWidget)
        horizontalLayout.setObjectName("horizontalLayout")
        parameterLabel = QtWidgets.QLabel(parameterWidget)
        parameterLabel.setObjectName("parameterLabel")
        horizontalLayout.addWidget(parameterLabel)
        spinBox = QtWidgets.QSpinBox(parameterWidget)
        spinBox.setButtonSymbols(QtWidgets.QAbstractSpinBox.UpDownArrows)
        spinBox.setMinimum(1)
        spinBox.setObjectName("spinBox")
        horizontalLayout.addWidget(spinBox)
        spacerItem = QtWidgets.QSpacerItem(653, 0, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
        horizontalLayout.addItem(spacerItem)
        verticalLayout.addWidget(parameterWidget)
        listFeatureWidget.setSizeHint(featureWidget.sizeHint())
        self.featureList.addItem(listFeatureWidget)
        self.featureList.setItemWidget(listFeatureWidget,featureWidget)

所需的行为是，每次小部件的combobox值更改时，它都会根据传递的字典进行检查，并根据值为collaspe/explang afffent commeterwidget并设置其中一个标签的文字。那么，如何编写此更新函数，以便它可以引用正确的小部件？

编辑： 稍后，我意识到它需要上课，所以我想到了：

class featureItemInstance:
        def __init__(self, master, columnName, defaultOption, listOptions) -> None:
            self.listOptions = listOptions
            self.listFeatureWidget = QtWidgets.QListWidgetItem()
            self.featureWidget = QtWidgets.QWidget()
            self.featureWidget.setStyleSheet('background-color:transparent')
            self.featureWidget.setGeometry(QtCore.QRect(50, 210, 901, 91))
            self.featureWidget.setObjectName("featureWidget")
            self.verticalLayout = QtWidgets.QVBoxLayout(self.featureWidget)
            self.verticalLayout.setContentsMargins(0, 0, 0, 0)
            self.verticalLayout.setSpacing(0)
            self.verticalLayout.setObjectName("verticalLayout")
            self.feature = QtWidgets.QWidget(self.featureWidget)
            self.feature.setObjectName("feature")
            self.horizontalLayout_8 = QtWidgets.QHBoxLayout(self.feature)
            self.horizontalLayout_8.setObjectName("horizontalLayout_8")
            self.featureLabel = QtWidgets.QLabel(self.feature)
            self.featureLabel.setObjectName("featureLabel")
            self.featureLabel.setText(columnName)
            self.horizontalLayout_8.addWidget(self.featureLabel)
            self.comboBox = QtWidgets.QComboBox(self.feature)
            self.comboBox.setStyleSheet('background-color:white')
            self.comboBox.setObjectName("comboBox")
            self.comboBox.currentTextChanged.connect(self.updateSelf)
            for i in listOptions.keys():
                self.comboBox.addItem(i)
            self.comboBox.setCurrentIndex(defaultOption)
            self.horizontalLayout_8.addWidget(self.comboBox)
            self.verticalLayout.addWidget(self.feature)
            self.parameterWidget = QtWidgets.QWidget(self.featureWidget)
            self.parameterWidget.setObjectName("parameterWidget")
            self.horizontalLayout = QtWidgets.QHBoxLayout(self.parameterWidget)
            self.horizontalLayout.setObjectName("horizontalLayout")
            self.parameterLabel = QtWidgets.QLabel(self.parameterWidget)
            self.parameterLabel.setObjectName("parameterLabel")
            self.horizontalLayout.addWidget(self.parameterLabel)
            self.spinBox = QtWidgets.QSpinBox(self.parameterWidget)
            self.spinBox.setButtonSymbols(QtWidgets.QAbstractSpinBox.UpDownArrows)
            self.spinBox.setMinimum(1)
            self.spinBox.setObjectName("spinBox")
            self.horizontalLayout.addWidget(self.spinBox)
            self.spacerItem = QtWidgets.QSpacerItem(653, 0, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
            self.horizontalLayout.addItem(self.spacerItem)
            self.verticalLayout.addWidget(self.parameterWidget)
            self.listFeatureWidget.setSizeHint(self.featureWidget.sizeHint())
            master.featureList.addItem(self.listFeatureWidget)
            master.featureList.setItemWidget(self.listFeatureWidget,self.featureWidget)
            self.updateSelf()
        
        def updateSelf(self):
            expand = self.listOptions[self.comboBox.currentText()]
            if expand[0]:
                self.parameterWidget.show()
                self.parameterLabel.setText(expand[1])
            else:
                self.parameterWidget.hide()

但是出于某种原因updateself（）它说'farterainiteMinstance'对象没有属性'parameterWidget '尽管在__ Init __中被声明，但不知道怎么了。