Hands-On Blockchain for Python Developers

Crash course on Qt for Python

Let's write a simple application using our GUI library:

1. Create a file named hello.py:

import sysfrom PySide2.QtWidgets import QApplication, QWidgetapp = QApplication(sys.argv)window = QWidget()window.resize(400, 400)window.show()sys.exit(app.exec_())

2. Then run it using the following command:

(qt-venv) $ python hello.py

You will now see a blank window:

Let's go through this file to better understand Qt for Python:

import sysfrom PySide2.QtWidgets import QApplication, QWidget

The sys import is from the standard Python library. This is required because we want to get the arguments from the command line when we ...