PyQt vs PySimpleGUI

PyQt has a straightforward API with its classes corresponding to Qt C++’s, and as such, the API documentation for C++ works for Python — the namespaces, properties, methods are all the same. If you have experience working with Qt and/or C++, you will find PyQt easy to work with.

PyQt is used in many large-scale applications and has stood the test of time.

GUI programming with Qt is built around the concept of signals and slots for communication between objects. A signal is emitted when an event occurs (e.g. a button is clicked), and slots are callable functions that handle the event (e.g. show a pop-up, when a button is clicked). This allows for flexibility when handling GUI events and results in a cleaner codebase.

Qt provides many widgets (buttons, textboxes, menus, et al.) out of the box, and they have a native look to them across all supported platforms: the same widget looks similar to the platform's native widget (e.g. a button in a PyQt application looks the same as a button on macOS, or Windows). On Linux systems, it changes according to the desktop environment.

PyQt has support for loading UIs built with Qt Designer, a drag-and-drop WYSIWYG interface builder, which allows you to design and build interfaces without writing any code.

PyQt is one of the most popular UI frameworks for Python. It has an active community with many third-party code examples and tutorials available.

Qt wraps several native platform APIs for networking, databases, etc. and provides standardized access to them through a single API — one codebase can cater to many platforms and perform the same across them.

Python GUI For Humans - Transforms tkinter, Qt, Remi, WxPython into portable people-friendly Pythonic interfaces.

• Requires 1/2 to 1/10th the amount of code as underlying frameworks.
• One afternoon is all that is required to learn the PySimpleGUI package and write your first custom GUI.
• Students can begin using within their first week of Python education.
• No callback functions. You do not need to write the word "class" anywhere in your code.

"I've been working to learn PyQT for the past week in my off time as an intro to GUI design and how to apply it to my existing scripts... Took me ~30 minutes to figure out PySimpleGUI and get my scripts working with a GUI."

"Python GUI has been an absolute nightmare for me and I've avoided it like the plague. Until I saw PysimpleGUI."

"I've been pretty amazed at how much more intuitive it is than raw tk/qt. The dude developing it is super active on the project too so if you come across situations that you just can't get the code to do what you want you can make bug/enhancement issues that are almost assured to get a meaningful response."

"This library is the easiest way of GUI programming in Python! I'm totally in love with it"

"Wow that readme is extensive and great." (hear the love for docs often)

"Coming from R, Python is absolutely slick for GUIs. PySimpleGUI is a dream."

"I have been writing Python programs for about 4 or 5 months now. Up until this week I never had luck with any UI libraries like Tkinter, Qt, Kivy. I went from not even being able to load a window in Tkinter reliably to making a loading screen, and full program in one night with PySimpleGUI."

"I love PySimpleGUI! I've been teaching it in my Python classes instead of Tkinter."

Either pip install or copy single source file to your project.

The same PySimpleGUI code written by the user can be executed on multiple GUI platforms without changing the source code. Only the import statement needs to be changed. Write the GUI once, run on multiple platforms including a web browser

• Create windows that look and operate identically to those created directly with tkinter, Qt, WxPython, and Remi.

Wraps tkinter and does not require any other packages be installed.

300+ Demo Programs teach you how to integrate with many popular packages like OpenCV, Matplotlib, PyGame, etc.
Tons of documentation, a Cookbook, built-in help using docstrings - in short, it's heavily documented.

Python code with GUI will run on Windows, Linux, Raspberry Pi and Android (PyDroid3) with very minor changes. one to 4 lines of boilerplate type code.

PySimpleGUI leverages the Python language constructs in clever ways that shorten the amount of code and return the GUI data in a straightforward manner. When a widget is created in a form layout, it is configured in place, not several lines of code away.

With most GUIs, arranging GUI widgets often requires several lines of code… at least one or two lines per widget. PySimpleGUI uses an "auto-packer" that automatically creates the layout. No pack or grid system is needed to lay out a GUI window.

What makes PySimpleGUI superior for newcomers is that the package contains the majority of the code that the user is normally expected to write. Button callbacks are handled by PySimpleGUI, not the user's code. Beginners struggle to grasp the concept of a function, and expecting them to understand a call-back function in the first few weeks is a stretch.

New releases, new Demo Programs, documentation, online resources as constantly being added.

Has a 61 lecture course on Udemy now that's got more than the free older courses on YouTube.