pyqt5 table

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'app.ui'
#
# Created by: PyQt5 UI code generator 5.13.0
#
# WARNING! All changes made in this file will be lost!


from PyQt5 import QtCore, QtGui, QtWidgets
import pymysql as mdb
import ast

def MyConverter(mydata):
    def cvt(data):
        try:
            return ast.literal_eval(data)

        except Exception:
            return str(data)
    return tuple(map(cvt, mydata))

class Ui_MainWindow(object):

    def LoadData(self):
        db = mdb.connect('192.168.1.65', '유저아이디','패스워드','디비아이디')

        with db:
            cur = db.cursor()
            rows = cur.execute("select * from sawon")
            data = cur.fetchall()

            for row in data:
                self.addTable(MyConverter(row))

            cur.close()

    def addTable(self, columns):
        rowPosition = self.tableWidget.rowCount()
        self.tableWidget.insertRow(rowPosition)

        for i, columns in enumerate(columns):
            self.tableWidget.setItem(rowPosition, i, QtWidgets.QTableWidgetItem(str(columns)))



    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(463, 427)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.horizontalLayout = QtWidgets.QHBoxLayout(self.centralwidget)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.verticalLayout = QtWidgets.QVBoxLayout()
        self.verticalLayout.setObjectName("verticalLayout")
        self.tableWidget = QtWidgets.QTableWidget(self.centralwidget)
        self.tableWidget.setRowCount(8)
        self.tableWidget.setColumnCount(3)
        self.tableWidget.setObjectName("tableWidget")
        self.verticalLayout.addWidget(self.tableWidget)
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.clicked.connect(self.LoadData)
        self.pushButton.setObjectName("pushButton")
        self.verticalLayout.addWidget(self.pushButton)
        self.horizontalLayout.addLayout(self.verticalLayout)
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "사원관리"))
        self.pushButton.setText(_translate("MainWindow", "Load"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())