In this tutorial, I explain how to import .ui files created using PyQt5’s designer tool in Python and how to connect widgets from the GUI to methods in Python.

Introduction

In my tutorial on Python GUI’s with PyQt, I had many people bring up the fact that when modifying the GUI, as soon as pyuic5 is executed again to rebuild the Python file, all original changes will be lost.

In a sense, this is true. For demonstration proposes, I had put all code into the Python file generated, but a smarter way to add code would be have been to import the generated file so that when it changes (executed pyuic5 again to create an updated .py file), it would only have affected the imported file. This method also allows for separation of the GUI and logic.

In this tutorial, I am going to cover a method that allows you to import the .ui file generated by PyQt Designer directly in Python. Please be aware that there is a lot more effort when importing it this way and it can be a lot harder to find where errors are occurring.

#python #pyqt5