import sys
from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QLabel, QPushButton, QLineEdit

# 1. Import QApplication and all the required widgets
# from PyQt5.QtWidgets import QApplication, QLabel, QWidget

def addLabel(layout, text):
    layout.addWidget(QLabel(text))

if __name__ == "__main__":
   app = QApplication([])

   window = QWidget()
   layout = QVBoxLayout(window)
   # Create a label Widget and add it to the layout
   label = QLabel('Enter some text!')
   layout.addWidget(label)

   line_edit = QLineEdit()
   layout.addWidget(line_edit)

   # Create a QPushButton object with a caption on it
   qbtn= QPushButton('Add Label')

   # Add the QPushButton to the layout
   layout.addWidget(qbtn)

   # Close the application when the button is pressed
   # Here I am using slots & signals, which I will demonstrate later in this tutorial
   qbtn.clicked.connect(lambda:addLabel(layout, line_edit.text()))

   window.setWindowTitle("PyQt App")
   window.setGeometry(100, 100, 280, 80)
   # helloMsg = QLabel("<h1>Hello, World!</h1>", parent=window)
   # helloMsg.move(60, 15)

   window.show()

   # 5. Run your application's event loop
   sys.exit(app.exec())