Testing application

Create a directory named advanced_course_qt. We can put all of our tutorial files here. Name the first script button_and_label.py and use the following code to create a button and a label for that button (refer to the code file on the following GitLab link for the full code: https://gitlab.com/arjunaskykok/hands-on-blockchain-for-python-developers/blob/master/chapter_09/advanced_course_qt/button_and_label.py):

from PySide2.QtWidgets import QWidget, QApplication, QLabel, QPushButton, QVBoxLayoutfrom PySide2.QtCore import Qtimport sysclass ButtonAndLabel(QWidget):......if __name__ == "__main__":    app = QApplication(sys.argv)    button_and_label = ButtonAndLabel()    button_and_label.show()    sys.exit(app.exec_())

Run the preceding ...

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