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Kivy can be used to develop multi-touch applications and games on iOS and Android. One popular example showcasing the capabilities of Kivy, with source code provided for reference, is “2048 with Kivy” on the iOS App Store and Google Play Store. See More
It can be hard to accomplish things that requires APIs not supported by Kivy — while it is possible to interface with the platform's system libraries with third-party Python libraries (pyobjc for macOS, pyjnius for Android, etc.), it provides a level of indirection and can be hard to work with if you are not familiar with the platform's native API. See More
Cross-platform frameworks implementing native APIs usually have one issue in common: performance across platforms. Kivy solves this by implementing performance-critical features in C / Cython, and it’s graphics engine is built on OpenGL ES — hardware-acceleration out of the box with many smart under-the-hood optimizations to ensure high performance. See More
Compared to other GUI frameworks, Kivy is a lot more dynamic and versatile - it is essentially an OpenGL canvas; the graphics API is an abstraction of low-level OpenGL commands. This means you can use it to draw any kind of graphics, and makes Kivy suitable for game development. See More
PyQt is dual-licensed with GPL v3 and the Riverbank Commercial License. If you do not intend on releasing your application under a GPL-compatible license (i.e. make your application open-source), you must pay for a commercial license. See More
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. See More
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. See More
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. See More
Compared to other GUI libraries, building executables for TkInter applications are simpler because TkInter is included in Python and has no other dependencies. This results in less complicated packaging requirements and smaller binary size. See More
Particularly good at putting a front-end onto a Python script in under 5 or 10 minutes. See More
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