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python - Remove QPushButton from QVBoxLayout in QScrollArea

I have used the Code as given by:https://www.learnpyqt.com/tutorials/qscrollarea/. I only changed the Labels to QPushButtons. My Problem is that I cannot remove the PushButton 'Delete Me' from my QScrollArea... Does any one have an idea?

from PyQt5.QtCore import Qt, QSize
from PyQt5 import QtWidgets, uic
import sys
from PyQt5.QtWidgets import (QWidget, QSlider, QLineEdit, QLabel, QPushButton, QScrollArea,QApplication,
                         QHBoxLayout, QVBoxLayout, QMainWindow)

class MainWindow(QMainWindow):

def __init__(self):
    super().__init__()
    self.initUI()

def initUI(self):
    self.scroll = QScrollArea()             # Scroll Area which contains the widgets, set as the centralWidget
    self.widget = QWidget()                 # Widget that contains the collection of Vertical Box
    self.vbox = QVBoxLayout()               # The Vertical Box that contains the Horizontal Boxes of  labels and buttons

    for i in range(1,20):
        if i is not 4:
            object = QPushButton("TextLabel")
        else:
            object = QPushButton("Delete Me")
        self.vbox.addWidget(object)

    self.widget.setLayout(self.vbox)

    #Scroll Area Properties
    self.scroll.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn)
    self.scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
    self.scroll.setWidgetResizable(True)
    self.scroll.setWidget(self.widget)

    self.setCentralWidget(self.scroll)

    self.setGeometry(600, 100, 1000, 900)
    self.setWindowTitle('Scroll Area Demonstration')
    self.show()
    
    for index in range(self.vbox.count()):
        print(self.vbox.itemAt(index).widget().text())
        print(self.vbox.itemAt(index).widget().text())
        if self.vbox.itemAt(index).widget().text() == 'Delete Me':
            print('found it')
            self.vbox.removeWidget(self.vbox.itemAt(index).widget())

    return
def main():
    app = QtWidgets.QApplication(sys.argv)
    main = MainWindow()
    sys.exit(app.exec_())
question from:https://stackoverflow.com/questions/65924429/remove-qpushbutton-from-qvboxlayout-in-qscrollarea

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