How To Install And Use PyQt In Python

In this article, I will tell you what is PyQt and how to install PyQt in python, and a hello world example implemented in PyQt. It will introduce both PyQt5 and PyQt6.

1. What Is PyQt?

1. PyQt is an extensive collection of GUI tools and libraries for creating user interfaces for Python applications.
2. PyQt allows developers to create highly customizable user interfaces that can be tailored to the specific needs of their applications.
3. In addition to standard GUI creation tools, PyQt also includes a wide range of useful tools for creating custom widgets and dialogs.

2. How To Install PyQt In Python?

1. Installing and using PyQt in Python is a relatively simple process.
2. First, you need to make sure that you have Python installed on your system.
3. You can check to see if you have Python installed by typing “python –version” in the command line.
4. Once you have confirmed that you have Python installed, you can proceed with installing PyQt using pip.
5. To do this, type “pip install pyqt5” into the command line.
6. If you want to install PyQt6, you need to run the below command in the command line.

   # Install the PyQt6 package
   pip install PyQt6
   
   # Install the QtDesigner package
   pip install pyqt6-tools
   
   # Install the Qt.py package
   pip install qt.py

3. How To Use PyQt In Your Python Project?

1. Once PyQt is installed, you can begin using it in your Python projects.
2. In order to use PyQt in a project, you will first need to import it.
3. To do this, type “import PyQt5” into your Python script to use PyQt5.
4. If you want to use PyQt6, you should use the command import PyQt6 to import the PyQt6 modules and functions into your project.
5. After this, you can begin creating your PyQt applications.

4. PyQt Hello World Example Code.

1. Below is the basic hello world example that is implemented using PyQt5.

   import sys
   from PyQt5.QtWidgets import QApplication, QWidget
   
   if __name__ == '__main__':
   
       app = QApplication(sys.argv)
   
       w = QWidget()
       w.resize(250, 150)
       w.move(300, 300)
       w.setWindowTitle('Hello World')
       w.show()
   
       sys.exit(app.exec_())

2. Below source code use PyQt6 to implement the hello world example.

   import PyQt6
   
   app = QApplication([])
   
   # Create a simple window
   window = QWidget()
   window.setWindowTitle('Hello World')
   window.resize(400, 300)
   
   # Create two labels
   label1 = QLabel('Label 1', window)
   label2 = QLabel('Label 2', window)
   
   # Set label positions
   label1.move(10, 10)
   label2.move(10, 50)
   
   window.show()
   
   app.exec_()