put button inside qtablewidget cells - python-3.x

Question

I am a beginner and I designed two windows with QT Designer
I have a table that I want to put a button in the second and third columns and clicking on them will open a window.
I wrote the code, but only if the last button is clicked, the "Form" window opens and the other buttons do nothing.
And that I want the buttons to be in the center of the column. I could not do it with "setTextAlignment".
Can you tell me what to do?
from PyQt5 import QtCore, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(567, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.tabWidget = QtWidgets.QTabWidget(self.centralwidget)
self.tabWidget.setObjectName("tabWidget")
self.tab = QtWidgets.QWidget()
self.tab.setObjectName("tab")
self.gridLayout_2 = QtWidgets.QGridLayout(self.tab)
self.gridLayout_2.setObjectName("gridLayout_2")
self.tableWidget = QtWidgets.QTableWidget(self.tab)
self.tableWidget.setObjectName("tableWidget")
self.tableWidget.setColumnCount(3)
self.tableWidget.setRowCount(0)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(1, item)
item = QtWidgets.QTableWidgetItem()
self.tableWidget.setHorizontalHeaderItem(2, item)
self.tableWidget.horizontalHeader().setStretchLastSection(True)
self.gridLayout_2.addWidget(self.tableWidget, 0, 0, 1, 1)
self.tabWidget.addTab(self.tab, "")
self.gridLayout.addWidget(self.tabWidget, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 567, 22))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
self.tabWidget.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
item = self.tableWidget.horizontalHeaderItem(0)
item.setText(_translate("MainWindow", "name"))
item = self.tableWidget.horizontalHeaderItem(1)
item.setText(_translate("MainWindow", "transactions"))
item = self.tableWidget.horizontalHeaderItem(2)
item.setText(_translate("MainWindow", "more"))
self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("MainWindow", "Tab 1"))
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(400, 300)
self.openGLWidget = QtWidgets.QOpenGLWidget(Form)
self.openGLWidget.setGeometry(QtCore.QRect(9, 9, 382, 282))
self.openGLWidget.setObjectName("openGLWidget")
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
Form = QtWidgets.QWidget()
f = Ui_Form()
f.setupUi(Form)
# In the main program, the data is read from the database.
data = ['ahmed','joy','joly']
ui.tableWidget.setRowCount(len(data) + 1)
print(* data, sep='-')
for i,ii in enumerate(data):
itm = QtWidgets.QTableWidgetItem(ii)
ui.tableWidget.setItem(i,0,itm)
ui.btn = QtWidgets.QPushButton("...")
ui.btn.setMaximumSize(QtCore.QSize(50, 25))
ui.btn2 = QtWidgets.QPushButton("+")
ui.btn2.setMaximumSize(QtCore.QSize(25, 25))
ui.tableWidget.setCellWidget(i, 1, ui.btn)
ui.tableWidget.setCellWidget(i, 2, ui.btn2)
ui.btn2.clicked.connect(Form.show)
MainWindow.show()
sys.exit(app.exec_())