PyQt5 Tutorial: Create a Python GUI in 2018

Post by rkeene2 » Tue, Sep 25, 2018, 6:37 PM UTC

AnIdiotOnTheNet wrote: post #88

toyg wrote: post #41

Earlier quoted context omitted.

If you use the complete Qt installer, you get QtDesigner. If you use the PyQT-provided wheels and/or you don'want to mess with the whole Qt, then you can separately install QtCreator, which is very simple and embeds QtDesigner.

Looking at a tutorial, it looks like all it does is layout the form for you. That's a shame. Things closer to what the original VB was are sorely missed in modern computing.

Post by mishurov » Tue, Sep 25, 2018, 6:43 PM UTC

solarkraft wrote: post #42

DanFeldman wrote: post #23

We use Qt heavily at Starsky Robotics. We initially used it because it has tight integration with ROS via RQT [1], but I'm pretty impressed with the framework in general. Lots of great tools out of the box, QtCreator is awesome and once you get the right signal/slot model in your head everything is a breeze. Plus getting to prototyping in python is always fast! For our use case, relative speed of the GUI isn't a fact…

Thank you for not using Electron.

Post by blattimwind » Tue, Sep 25, 2018, 6:47 PM UTC

ehsankia wrote: post #96

minimaxir wrote: post #35

This is a case where the "in 2018" in the title is very helpful, as Googling information about Python and Qt usually returns something dreadfully out of date. (and as other comments note, there are lots of new companion tools/competitors like Electron)

The API still looks messy and unpythonic though, sadly. Look at the basic hello world example. Why do I need to pass QApplication an empty array? Why am I calling a method ending with _ to launch the program? And the fact the label magically attaches to the app through some side effect is also confusing. Does anyone know if there's any good shim/wrapper around PyQt that has a better API?

Post by blattimwind » Tue, Sep 25, 2018, 6:48 PM UTC

gusmd wrote: post #91

chaz6 wrote: post #2

Just to note, there are official [1] Python bindings available for Qt and this can usually be installed with `pip install pyside2` . [1] https://www.qt.io/qt-for-python

We use (and pay for) PyQt5 at work. Do you have experience with both and if so can you comment on any tangible differences? If possible, I would rather get behind the "official" one since we also already pay for commercial Qt licenses.

    def f(): pass

    signal.connect(f)
    signal.disconnect(f)

Post by usefulidiot » Tue, Sep 25, 2018, 6:50 PM UTC

kbumsik wrote: post #75

dev_dull wrote: post #26

I gave up on QT and decided instead to invest time learning javascript frameworks, which provide a lot more flexibility for creating apps.

Then try QML! You can create Qt apps using JavaScript (it's ES5 though).