How to add Qt to Python With Example

Categories Python

Here’s a simple example of using PyQt to create a basic GUI application with a button that displays a message when clicked:

First, you’ll need to make sure you have PyQt installed. You can install it using pip:

pip install PyQt5Code language: Python (python)

Now, let’s create a simple PyQt application:

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QMessageBox

class MyApplication(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setGeometry(100, 100, 300, 200)
        self.setWindowTitle('PyQt Example')

        self.button = QPushButton('Click Me!', self)
        self.button.setGeometry(100, 80, 100, 30)
        self.button.clicked.connect(self.showMessageBox)

        self.show()

    def showMessageBox(self):
        QMessageBox.information(self, 'Message', 'Hello, PyQt is working!')

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MyApplication()
    sys.exit(app.exec_())
Code language: Python (python)

In this example, we create a simple PyQt application with a window (QWidget) containing a button (QPushButton). When the button is clicked, it calls the showMessageBox function, which displays a message box using QMessageBox.information.

Save this code in a file named pyqt_example.py, for example. Then, run the script:

python pyqt_example.pyCode language: Python (python)

A window should appear with a button labeled “Click Me!” in the center. When you click the button, a message box will pop up with the text “Hello, PyQt is working!”.

This is just a basic example to get you started. PyQt offers a vast array of widgets and features to create more complex and sophisticated GUI applications. You can explore the official PyQt documentation and examples to learn more about the possibilities with PyQt.

Can Qt be used with Python?

Yes, Qt can be used with Python. Qt is a popular cross-platform application framework that provides a wide range of tools and libraries for developing graphical user interfaces (GUIs) and applications. It is originally written in C++, but it has official support for Python as well.

The official Python binding for Qt is called PyQt. PyQt allows developers to create Qt applications using Python programming language. PyQt is essentially a set of Python modules that wrap the Qt libraries, making it easy to utilize Qt functionalities from Python code.

Another alternative to PyQt is PySide, which is also a set of Python bindings for Qt. PySide is sponsored by the Qt Company and has official support from Qt, similar to PyQt.

Both PyQt and PySide offer similar functionality and can be used to develop robust and feature-rich GUI applications using Python. The choice between the two depends on personal preference, licensing requirements, and the specific needs of your project.

What is the difference between PyQt and Qt for Python?

The difference between PyQt and Qt for Python lies in their origins and the companies that support them. Let’s delve into each:

  1. PyQt: PyQt is a set of Python bindings for the Qt application framework. It is developed and maintained by Riverbank Computing Limited, a software company founded by Phil Thompson. PyQt provides a comprehensive set of Python modules that wrap the Qt C++ libraries, allowing developers to create Qt applications using Python programming language. The most commonly used version of PyQt is PyQt5, which corresponds to Qt 5.One key point to note is that PyQt comes in two editions, each with different licensing models:
    • PyQt5: Available under both the GPL (General Public License) and a commercial license. If your project is open-source and also uses a compatible license, you can use PyQt5 for free under the GPL. If you want to use PyQt5 in a proprietary or closed-source project, you need to purchase a commercial license from Riverbank Computing.
    • PyQt6: PyQt6 is the latest version of PyQt, which is designed to work with Qt 6. Similar to PyQt5, it is also available under the GPL and a commercial license.
  2. Qt for Python (PySide): Qt for Python, formerly known as PySide, is another set of Python bindings for the Qt framework. It is developed and maintained by The Qt Company, the same organization that develops Qt itself. Qt for Python is designed to provide Python bindings for Qt, similar to PyQt, but it follows a different licensing model.Qt for Python is released under the LGPL (Lesser General Public License) version
  3. This means that you can use it freely in both open-source and commercial projects without purchasing a separate license. This licensing difference makes Qt for Python an attractive option for many developers and organizations.Similar to PyQt, Qt for Python provides Python modules that mirror the functionality of Qt C++ libraries and allows developers to build Qt applications using Python.

Both PyQt and Qt for Python (PySide) offer similar functionality, allowing developers to create GUI applications using Qt with the Python programming language. The choice between the two often comes down to licensing considerations, personal preference, and the specific needs of the project or organization. Developers should be aware of the licensing implications of using either binding in their projects.

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  • Yaryna Ostapchuk

    I am an enthusiastic learner and aspiring Python developer with expertise in Django and Flask. I pursued my education at Ivan Franko Lviv University, specializing in the Faculty of Physics. My skills encompass Python programming, backend development, and working with databases. I am well-versed in various computer software, including Ubuntu, Linux, MaximDL, LabView, C/C++, and Python, among others.

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