This isn't available in PySide's version. In Python 2. The solution used in both PyQt4 and PySide was to rename uses of. Python 3 removed the exec keyword, freeing the name up to be used. As a result from PyQt6. However, PySide6 still uses. For [[ activeDiscount.
Defining custom slots and signals uses slightly different syntax between the two libraries. The behavior of them both is identical for defining and slots and signals.
If you want to ensure consistency across PyQt6 and PySide6 you can use the following import pattern for PyQt6 to use the Signal and Slot style there too. You could of course do the reverse from PySide6. You must use the. The example below shows the impact of these changes on code These feature flags are a nice improvement for code readability, however as they are not supported in PyQt6 it makes writign portable code more difficult.
You don't need to worry about this if you're writing a standalone app, just use whichever API you prefer. If you're writing a library, widget or other tool you want to be compatible with both PyQt6 and PySide6 you can do so easily by adding both sets of imports. This is the approach used in our custom widgets library, where we support for PyQt6 and PySide6 with a single library import.
The only caveat is that you must ensure PyQt6 is imported before as in on the line above or earlier when importing this library, to ensure it is in sys.
To account for the lack of shorthand enum and flags in PyQt6 you can generate these yourself. The code would only need to be run under PyQt6. When passed an object and a PyQt6 compatible long-form name, this function will return the correct enum or flag on both PyQt6 and PySide6. You can work around this by implementing a function to check the presence of each method and call whichever exists. If you're doing this in multiple files it can get a bit cumbersome. A nice solution to this is to move the import logic and custom shim methods to their own file, e.
You must remember to add any other PyQt6 modules you use browser, multimedia, etc. You can then import Qt6 into your own application as follows —. There's not much more to say — the two libraries really are that similar.
PyQt6 vs PySide6 was published in faq on March 12, updated September 18, and tagged pyqt6 pyside pyqt pyside6 qt qt6 python. This allows a person to develop commercial applications with PySide. The GPL license however prevents you from withholding the source code in a distributed program. In short, if you want to develop and distribute commercial programs in PyQt, you should purchase a commercial license for Qt.
You could still sell the software for money without a commercial license , but you would have to share the source code. Doing a PyQt vs PySide comparison at the time of the split would have shown that both were roughly equal.
However as the time went on, the development of PySide lagged behind PyQt. Following the release of Qt5, PyQt5 the python binding for Qt5 was released in This two year gap is likely the major reason that PyQt5 is more common amongst the Python developers of today. Aside from a few syntax differences in how they are imported and launched, the syntax of both libraries is exactly the same.
They use the same widgets Qt widgets so you can learn about PySide from a PyQt tutorial too, and vice versa. Below are both the methods listed, first PyQt5 then PySide2. If you ever want to create your own custom slots or signals in PyQt5 or PySide , keep in mind that the functions are slightly different. Take a look at the below code to see the difference between PyQt5 and PySide when creating a signal or slot object.
Both of these are part of the QtCore class, so the import is like QtCore. If you master all these differences, migrating a PyQt5 app to PySide2 or vice versa will be a piece of cake!
I'm so freaking lost. Do I just need instructions telling people how to install PySide2? A text file with pip install PySide2? You shouldn't use Python if you need closed source. Even if you freeze your project into a single executable, the scripts will be right there for everyone to read. That's not exactly true, Python bytecode is not very readable - at least it loses all the formatting. If you really want to make sure nobody can read your source code, you can also compile it using Cython.
The same goes for the QML code. But to be honest, most applications these days don't need this level of source code protection since the business logic is somewhere on a server and it's a lot of work to disassemble Python bytecode after all. You kind of throw all the different namings in a mixer and choose to reference to whatever pops up in your mind. In the Wrappers section it gets even more confusing, what are the wrappers using?
PySide2 or PyQt5? The point of this article is to show the differences between the different bindings. So yes, of course, I have to switch between the different names all the time. The wrappers use whatever version is available on the system. Usually, they prefer PyQt5 or the preference can be modified. Please see the documentation of the wrapper for more details. I'm reading the article, googling for an hour and still don't understand the licensing model.
Sorry new to Qt and would appreciate if you make it clear for me. I'm writing a Python application. My question is at the end of the day I want to sell my application. I do not want to give my source code to users. In fact, the access to file system will be locked for them so all they see is a GUI which they can interact with.
As I said, I don't want to make my application open source neither will give the user my source code. If your system is locked, you are dealing with an embedded device. In terms of the LGPL license the user needs to be able to replace the Qt version with its own modified version.
Therefore, you need to give the user access to the file system in order to comply. So, I have a slightly different question, or set of questions, than what I see after searching this topic. So, say I write a tool for my fellow internal admins to use at my company. I also would open source the code for the tool for other IT admins to use in their own organizations. So no plans to sell. Not doing anything crazy here. If you don't share any Qt source code and binaries, you can in theory even use a more permissive license.
Note that the way Python modules are linked into an application, the license boundary is a legal gray zone. Some people argue that you can even close-source the application code and stay compatible with OSS licenses as long as you don't deploy them as a binary. If its closed-source you need to provide instructions on how to replace the Qt libraries. If you make it publically available, then probably too, although as long as the tool is open-source nobody will care. If it's just for internal use, then it's very unlikely someone will be interested in whether you include the license in the GUI or not.
But in general, it doesn't hurt to add it. I'm missing some kind of appreciation of your helpful, well-structured and apparently objective article in these comnents.
You helped me a lot in not choosing one of the two ways, but the third: a wrapper.
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