Поиск по тексту в listWidget

from PyQt5 import QtCore, QtWidgets
 
class Ui_MainWindow(QtWidgets.QMainWindow):
 
    def __init__(self):
        super(Ui_MainWindow, self).__init__()
        self.setupUi(self)
 
        lessons = ['Химия', 'Математика', 'Физкультура', 'Литература', 'Геометрия']
        self.listWidget.addItems(lessons)
        self.pushButton.clicked.connect(self.search)
 
    def search(self):
        item = self.lineEdit.text()
        find = self.listWidget.findItems(item, QtCore.Qt.MatchExactly)
        print(find)
 
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(366, 484)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
        self.verticalLayout.setObjectName("verticalLayout")
        self.listWidget = QtWidgets.QListWidget(self.centralwidget)
        self.listWidget.setObjectName("listWidget")
        self.verticalLayout.addWidget(self.listWidget)
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setObjectName("lineEdit")
        self.verticalLayout.addWidget(self.lineEdit)
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.verticalLayout.addWidget(self.pushButton)
        MainWindow.setCentralWidget(self.centralwidget)
 
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
 
    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "Поиск"))
 
 
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    window = Ui_MainWindow()
    window.show()
    sys.exit(app.exec_())

        #print(find)
        x = []
        for i in range(0, len(find)):
            x.append(find[i].text())
        print(x)