Python Pyqt5 Yeni Sayfaya Geçerken Durduruldu Hatası

from PyQt5 import QtCore, QtGui, QtWidgets.
from s2 import *

class Ui_MainWindow(object):
def ok(self):
self.windoww = QtWidgets.QMainWindow()
self.ui = Ui_MainWindow2.
self.ui.setup(self.windoww)
self.windoww.show()
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(281, 398)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(20, 220, 231, 23))
self.pushButton.setObjectName("pushButton")
self.pushButton.clicked.connect(self.ok)
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setGeometry(QtCore.QRect(100, 90, 81, 31))
font = QtGui.QFont()
font.setFamily("Tw Cen MT Condensed Extra Bold")
font.setPointSize(24)
font.setBold(False)
font.setWeight(50)
self.label_3.setFont(font)
self.label_3.setObjectName("label_3")
self.widget = QtWidgets.QWidget(self.centralwidget)
self.widget.setGeometry(QtCore.QRect(20, 160, 71, 51))
self.widget.setObjectName("widget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.label = QtWidgets.QLabel(self.widget)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.verticalLayout.addWidget(self.label)
self.label_2 = QtWidgets.QLabel(self.widget)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.verticalLayout.addWidget(self.label_2)
self.widget1 = QtWidgets.QWidget(self.centralwidget)
self.widget1.setGeometry(QtCore.QRect(100, 160, 151, 48))
self.widget1.setObjectName("widget1")
self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.widget1)
self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.lineEdit = QtWidgets.QLineEdit(self.widget1)
self.lineEdit.setObjectName("lineEdit")
self.verticalLayout_2.addWidget(self.lineEdit)
self.lineEdit_2 = QtWidgets.QLineEdit(self.widget1)
self.lineEdit_2.setObjectName("lineEdit_2")
self.verticalLayout_2.addWidget(self.lineEdit_2)
self.widget2 = QtWidgets.QWidget(self.centralwidget)
self.widget2.setGeometry(QtCore.QRect(40, 130, 189, 19))
self.widget2.setObjectName("widget2")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.widget2)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.radioButton = QtWidgets.QRadioButton(self.widget2)
self.radioButton.setObjectName("radioButton")
self.horizontalLayout.addWidget(self.radioButton)
self.radioButton_2 = QtWidgets.QRadioButton(self.widget2)
self.radioButton_2.setObjectName("radioButton_2")
self.horizontalLayout.addWidget(self.radioButton_2)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 281, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)

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", "Giriş"))
self.label_3.setText(_translate("MainWindow", "e-Okul"))
self.label.setText(_translate("MainWindow", "Kullanıcı Adı"))
self.label_2.setText(_translate("MainWindow", "Şifre"))
self.radioButton.setText(_translate("MainWindow", "Öğretmen Girişi"))
self.radioButton_2.setText(_translate("MainWindow", "Öğrenci Girişi"))

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_())

from PyQt5 import QtCore, QtGui, QtWidgets.

class Ui_MainWindow2(object):
def setup(self, MainWindow2):
MainWindow2.setObjectName("MainWindow2")
MainWindow2.resize(281, 398)
self.centralwidget = QtWidgets.QWidget(MainWindow2)
self.centralwidget.setObjectName("centralwidget")
self.yazi2 = QtWidgets.QLabel(self.centralwidget)
self.yazi2.setGeometry(QtCore.QRect(100, 90, 81, 31))
font = QtGui.QFont()
font.setFamily("Tw Cen MT Condensed Extra Bold")
font.setPointSize(24)
font.setBold(False)
font.setWeight(50)
self.yazi2.setFont(font)
self.yazi2.setObjectName("yazi2")
self.yazi1 = QtWidgets.QLabel(self.centralwidget)
self.yazi1.setGeometry(QtCore.QRect(90, 120, 101, 21))
font = QtGui.QFont()
font.setPointSize(10)
font.setBold(False)
font.setWeight(50)
self.yazi1.setFont(font)
self.yazi1.setObjectName("yazi1")
self.widget = QtWidgets.QWidget(self.centralwidget)
self.widget.setGeometry(QtCore.QRect(70, 160, 141, 83))
self.widget.setObjectName("widget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.ntlrbtn = QtWidgets.QPushButton(self.widget)
self.ntlrbtn.setObjectName("ntlrbtn")
self.verticalLayout.addWidget(self.ntlrbtn)
self.dvmszlkbtn = QtWidgets.QPushButton(self.widget)
self.dvmszlkbtn.setObjectName("dvmszlkbtn")
self.verticalLayout.addWidget(self.dvmszlkbtn)
self.cksbtn = QtWidgets.QPushButton(self.widget)
self.cksbtn.setObjectName("cksbtn")
self.verticalLayout.addWidget(self.cksbtn)
self.ogrenci_name = QtWidgets.QLabel(self.centralwidget)
self.ogrenci_name.setGeometry(QtCore.QRect(210, 340, 61, 20))
self.ogrenci_name.setObjectName("ogrenci_name")
MainWindow2.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow2)
self.menubar.setGeometry(QtCore.QRect(0, 0, 281, 21))
self.menubar.setObjectName("menubar")
MainWindow2.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow2)
self.statusbar.setObjectName("statusbar")
MainWindow2.setStatusBar(self.statusbar)

self.retranslateUi(MainWindow2)
QtCore.QMetaObject.connectSlotsByName(MainWindow2)

def retranslateUi(self, MainWindow2):
_translate = QtCore.QCoreApplication.translate.
MainWindow2.setWindowTitle(_translate("MainWindow2", "MainWindow"))
self.yazi2.setText(_translate("MainWindow2", "e-Okul"))
self.yazi1.setText(_translate("MainWindow2", "Öğrenci Sekmesi"))
self.ntlrbtn.setText(_translate("MainWindow2", "Notlar"))
self.dvmszlkbtn.setText(_translate("MainWindow2", "Devamsızlık"))
self.cksbtn.setText(_translate("MainWindow2", "Çıkış Yap"))
self.ogrenci_name.setText(_translate("MainWindow2", " "))

if __name__ == "__main__":
import sys.
app = QtWidgets.QApplication(sys.argv)
MainWindow2 = QtWidgets.QMainWindow()
ui = Ui_MainWindow2()
ui.setup(MainWindow2)
MainWindow2.show()
sys.exit(app.exec_())