Pass Data Between Windows - PyQt5 GUI Thursdays #25

In this video I'll show you how to pass data from one window to another with PyQT5 and Python!
Passing data from one window to another with PyQT5 is pretty easy.
In this video we'll type something into a box on one window, and then when we click a button - whatever we typed in the box will appear in the other window.
#pyqt5 #codemy #JohnElder
Timecodes
0:00​​ - Introduction
0:50 - Create GUI in PyQT5 Designer
3:12 - Convert UI files To Python
3:56 - Import Second File To Main Program
4:12 - Create Function To Open Second Window
5:46 - Create Function To Pass Data Between Windows
8:27 - Understanding Program Flow Between Windows
9:50 - Conclusion

[@Codemycom]

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[@RyanDanielG]

great video! Feed the algorithm! It helps the creators of the videos we love

[@Codemycom]

Thanks for that!

[@abrarmulla1196]

Less goooo Thanks for clearing all my doubts.

[@Codemycom]

Sure thing

[@codeKeshav]

Thanks for using my suggestion about clicking on the widget to change the name or text.

[@Codemycom]

:-p

[@eduardozaratemontalvo6405]

Thanks a lot..!! You made an awesome job..!! Keep going..!! :D You have a new subscriber.!! 🤘

[@maxrichey5711]

I have really enjoyed your channel, John. Would you consider a PyQt5 tutorial where a TreeView is used to drag and drop image files into Labels and text files into TextEdits? That would be extremely useful; especially, if someone like you can cut through the online maze.

[@WaleFolorunso]

Great work. Your tutorials are awesome. How do i check if second window is opened before passing the data?

[@shashvatsingh6812]

It is normally at 3x. Haha. Great Content!

[@kunrath]

Hi John, I'm not sure where to ask this but I'll do it here. I've made a GUI to my program and converted the ui to py. Then I did some changes to the object names, and some values.. the question is: is there any way to 'convert' the '.py' back to '.ui' so I can have both equal in IDE and designer? thx in advance. I'm learning a lot from your videos, great job!

[@sinacoder]

Nice :)

[@Codemycom]

thanks

[@abrarmulla1196]

Lessss goooooooooooo

[@Codemycom]

Ha!

[@pdep]

If the second window was not open when text submitted, it doesn't show - but could you check second window exists as part of the submit method? If it does not, then run the open second window method first, then the submit method. Would that work? BTW I am finding it better practice to import the UI files rather than doing 'hard-coded' conversions. That way I can make any number of updates to the UI file without repeated conversions every time. [loadUi("foo.ui", self) ]

[@integralofthederivative2744]

Hey i had a doubt. i want to input stuff in the second window and show it in a list widget in the first window how do i do that?

[@jerryc5716]

Did you ever figure it out? I'm wondering the same thing.

[@integralofthederivative2744]

@@jerryc5716 a little Long story. I was making a clinic management software for my 12th grade CS Assessment. So that was for the list of patients. What I did was I used tabs so the refresh call could happen in one class. If you are using a database then you can try adding that data into the database and then put a reload option in the first one and feed the database into the list widget or table on click.

[@RichSchupbach]

​@@jerryc5716 I also wanted to get information from the second window to the first window. I found a different video that does a good job of answering how. It is here: kzbin.info/www/bejne/rYDbq5uOZbahd9k

[@StalkedByLosers]

What about the other way? If we want the second window to send info to the main window?

[@RichSchupbach]

I had the same question. I found a different video that does a good job of answering it. It is here: kzbin.info/www/bejne/rYDbq5uOZbahd9k

[@MrEverydaynormalguy]

why are you not using load ui?

[@songokussj4cz]

My thoughts exactly... And his answer would be "I'm simplifying things". For that, I would answer "Yeah, 99 % videos are simplifying things... How would you know how to use it in production if nobody shows you how to do it...". The second problem with this video is "how to pass information and then open window with the label changed. He told 9:39 "you can't change the window if you haven't shown the window yet, right?", well you can... Instantiate, edit, show...

[@Izzat-bj1le]

Hell yeee , can u make this tutorial in kivyMd?

[@Codemycom]

We'll see

[@gagannagpal6687]

why not use py creator, you wouldn't need to convert the ui files into python and it has it's own text editor so you can edit simultaneously, though to be honest sublime looks way better so I can see why lol. Also great tutorials!

[@Codemycom]

because this is better

[@MayankKumar-yx8dp]

Can you Make tutorial on TornadoFx (Kotlin language)..?

[@Codemycom]

No sorry, I have no idea what that is