user-interfaces

[kind kraken]

it's a shit ton faster if only the last column/row has weight, and pretty fast if only the second last ones do

so maybe think about redesigning your layout

what does your real use case look like

[proper glade]

no weighting happening yet, im just packing everything for testing atm.

it was quite sluggish. feels better now after the reboot though.

[kind kraken]

i think the key issue is how many widgets it has to move

and/or resize

so maybe make sure your overall layout is anchored to the top left corner and not, like, centered

[proper glade]

will keep that in mind, ty

[kind kraken]

though if your layout really is a grid of buttons like that, your choices might just be not make it resizable or deal with slowness

[proper glade]

yeah. im thinking i wont make it freely resizable but i do intend on adding/removing entire columns of buttons later on

[kind kraken]

maybe like

each button is 24x24 pixels or whatever seems reasonable

[proper glade]

another thing i was considering was switching to a canvas for each row and drawing them manually.

[kind kraken]

and you have something that lets you control the amount of rows and columns

canvas for the whole thing maybe

and maybe also a way for the user to directly control the size of the cells

so if they want them to be bigger (or smaller, fit more) they can

[proper glade]

good idea

[kind kraken]

you'll want a canvas for the whole thing anyway, even if you do use buttons

canvas is iirc the only way you can make something containing widgets scrollable

[proper glade]

hm i see. was just thinking of hiding/showing whole rows instead of scrolling by pixel.

[kind kraken]

that could work

looks like scrollbar commands aren't particularly hard, see http://effbot.org/tkinterbook/scrollbar.htm

[proper glade]

unfortunately not much in the way of customizing how it looks though

so yet another canvas... 😛

holy crap i just made a huge discovery

pyqt4 works in reaper

albeit with one issue

after the first run, this happens for all subsequent runs:

Traceback (most recent call last):
  File "pyqt_test.py", line 3, in <module>
    from PyQt4 import QtGui
RuntimeError: the sip module has already registered a module called PyQt4.QtCore

easy enough to sidestep by wrapping the imports in a try/except

oh nevermind... if you do that this happens

Traceback (most recent call last):
  File "defer", line 1, in <module>
  File "pyqt_test.py", line 11, in main
    app = QtGui.QApplication(sys.argv)
NameError: name 'QtGui' is not defined

[grizzled creek]

if tkinter sucks at everything, what should one use?

[bleak smelt]

PyQt

[wraith forge]

tkinter doesn't really suck. If you're just looking for a small project thing, it's perfect.

Right tool for the right job

[weak sapphire]

Each problem has the best package to work with

[grizzled creek]

thanks

I think given how pretty qt is i'll use pyqt

I wished they called it qtpy though.

Missed opportunity

[proper glade]

is there a way in PyQt5 to make one window always appear on top of another?

[urban ravine]

yes

[proper glade]

both have the always on top flag set. but the active one always moves to the top of the other

oh cool

how do i make that happen?

[urban ravine]

some slightly lower level methods that you pass some flag stuff to. it's definitely around on the web

[proper glade]

ive looked around

the only ones ive found are for setting the basic always on top flag

not for ordering two always on top windows

[urban ravine]

so you gotta code that out right

where it swaps around flags between the two windows or something

[proper glade]

swap around flags?

they're both on top i dont want either of them to not be on top

i just want one to be on top of the other

regardless of focus

[urban ravine]

so the two windows are basically glued?

[proper glade]

is that a pyqt term?

what do you mean by glued?

see that window at the bottom?

i want that to always be on top

[urban ravine]

yeah

[proper glade]

comes to the top when you click it

[urban ravine]

i think i get you but i recall doing this before

what does your current attempt do wrong?

[proper glade]

when the top window is focused the bottom window moves behind it again

[urban ravine]

why not have an if statement

if focus is toggled onto the bigger window, just always bring the small window into the top most layer with that flag or low level qt call in python

[proper glade]

the issues i can see with that are 1. i dont want to turn off the always on top flag of the top window at any point and 2. if done with a manual call, the bottom window is likely gonna flicker behind first before moving to the top

i was just hoping for some kind of z-level setting or parent-child setting that'll sort it out automatically

[urban ravine]

hey i get you

and actually you'd be surprised how clean this kind of fix is

i did something even more complicated with this window management in my pyqt project from years ago

and the flash/buffer or whatever is basically instant, it's nothing computation heavy to sit on a resting loop

i mean in this context - you should have no problems with the fix mentioned above. but of course i agree with you in that i wish someone else coded it for me instead 😉

[proper glade]

im not asking you or anyone else to write the code for me. i was wondering if pyqt had the functionality built in.

and it's not the computational heaviness of it im worried about. i just think it'll look ugly.

[urban ravine]

no i understand, i wasn't intending on that coming off cheeky

well it's a pretty bizarre way of handing your gui, right? how many programs actually do something like that. you should bring it all into one gui and have that be resizeable etc

or "dock" it to the side of the window with a toggle button, like you see in IDEs for example

[proper glade]

added a bottom_window._raise() to the top window's move event

seems to be doing the job

just wondering why it's movement in particular that needs the raise called over and over. the ordering doesnt change if the top window is resized.

huh. that's weird. the focus in/out events aren't being activated at all. for both windows.

ah solved, you gotta do setFocusPolicy first

[charred coral]

In tkinter Is there any widget that can popup with a message when you hover over another widget?

Can you @mention me if you reply?

[charred coral]

Can someone please help me out? I am still having trouble.. I know to detect if the mouse is hovering over a widget but how do I make it show a tooltip.. I googled this but all I am getting is stack overflow and I don't understand how they did it..

[dapper breach]

http://www.voidspace.org.uk/python/weblog/arch_d7_2006_07_01.shtml

@charred coral Not experienced in Tkinter, but this seemed pretty styraight forward

[charred coral]

I'll read through it

Thanks

[proper glade]

https://imgur.com/nRmu16H

expectation

https://imgur.com/VZ6mKcg

reality

[weak sapphire]

I can't even make a grid of buttons scrolling in a bidimensional array of text

[dense whale]

Hey. How can I edit a label in PySide2?

[dense whale]

AttributeError: 'NoneType' object has no attribute 'setText'``` I get this error everytime. ```py
self.loggedin.setText("DONE")```

And I've already defined it : py self.loggedin = self.window.findChild(QLabel, 'loggedin')

[dense whale]

^^fixed it

[dense whale]

hey again. 😄

I'm making a dashboard for my bot.

    def ok_handler(self):
        # token = self.line.text()
        self.workerThread.start()
        return self.loggedin.setText("Logged in")
        return self.cname.setText(f"Logged In as: {client.user.name}")
    def threadDone(self):
        token = self.line.text()
        botrun(token)
        print("running")```
SO it logs in, but it doesnt print ("running") and it doesnt change the tag to the bots username. Anyone know what I'm doing wrong?

[wet patio]

anyone know if cefpython or flexx is better than one another?

[charred thunder]

i don't, but flexx looks interesting

[proper glade]

@digital rose didnt have the line drawing algo worked out yet there

switched the whole thing over from tkinter to pyqt5

here's what it looks like now

https://imgur.com/sG8UsVs

these damn buttons man, they just dont wanna shrink

i didnt do any tutorials personally. just googled random examples and dived into it. stackoverflow and the pyqt reference have been getting me through it so far.

there's a lot of scattering of stuff among different submodules without really explaining why stuff goes where

@digital rose https://github.com/baoboa/pyqt5/tree/master/examples http://zetcode.com/gui/pyqt5/firstprograms/

these might help

https://pythonspot.com/pyqt5/ this looks good too

[bright knoll]

hey all

does anyone know of a debugger that can debug PyQT qthreads ?

So far using ipdb and sublime text ... going to try Pycharm next. After some googling it seems like debugging qthreads is problematic

[wind birch]

PyCharm has the best AFAIK so I'm assuming it can, might be a #tools-and-devops question too

[bright knoll]

OK thanks

[bright knoll]

yeah Pycharm works great, phew such a time saver

[hollow hamlet]

I am going to give PyQt5 a try for GUI

[hollow hamlet]

With PyQt5 could I firstly write the code of the file then design the GUI and implement it on it or is there a special way of doing things?

[tawny gust]

both

[winter gazelle]

How do I go about transforming an image and updating the UI with the new image without everything freezing?

(in PyQt5)

Also, why are all of the PyQt multithreading tutorials awful? The example code doesn't even run

[proper glade]

@winter gazelle how are you doing it at the moment?

[sick basin]

@winter gazelle Unsure if this would work in pyqt5 as well, but it should..

import threading

class CLASSNAMEHERE(threading.Thread):

    def __init__(self):
        # threading.Thread.__init__(self, *args, **kwargs)
        super(CLASSNAMEHERE, self).__init__()
        self.daemon = True
        self.start()

    def run(self):

Which works perfectly in tkinter

[tawny gust]

use a QThread

[proper glade]

is there a way in pyqt5 to override what dragging the edges of a window (i.e. to resize it) does?

[digital rose]

is it possible to append a list of full pathnames to a tkinter listbox, but only show basename in the box? can I make it so the full path is tied to like, index 0 in listbox?

until now have used two lists, and using output from listbox onto the full path list to get the file, but now when I have added a filter entry with trace to update the shown items, the index is all thrown off

[final flicker]

@tawny gust you ever worked with toga/beeware

[tawny gust]

no

[proper glade]

@final flicker i tried it once. didnt work at all. got the set up all done and completed the first tutorial. app didnt open. no erros, nothing. just silently failed.

and i was ignored when i asked for help on their gitter room

@digital rose would you mind showing the code for how youre doing it at the moment?

[final flicker]

@proper glade hm weird

its working perfectly for me

you sure your code isnt wrong?

[proper glade]

i literally copy/pasted the tutorial code

[final flicker]

same

unix?

[proper glade]

windows

10 x64

[final flicker]

can you post code?

[proper glade]

import toga
from toga.style import Pack
from toga.style.pack import COLUMN, ROW


class HelloWorld(toga.App):
    def startup(self):
        # Create a main window with a name matching the app
        self.main_window = toga.MainWindow(title=self.name)

        # Create a main content box
        main_box = toga.Box()

        # Add the content on the main window
        self.main_window.content = main_box

        # Show the main window
        self.main_window.show()


def main():
    return HelloWorld('Hello World', 'com.example.helloworld')

word for word from https://briefcase.readthedocs.io/en/latest/tutorial/tutorial-0.html

tried it with 3.7, 3.6 and 3.5

[final flicker]

do you ever call main().main_loop()?

[proper glade]

no. that's all the code. that's it.

[final flicker]

ik

but if you add that it works

says that inthe docs

@proper glade

[proper glade]

you'd think theyd mention something so important as, oh, idk, how to actually run the app, in the tutorial

[final flicker]

lol

ikr

they do in the other toutorials

but those dont use classes

[proper glade]

wait though, will this work for briefcase or just running in python?

i thought the whole point of returning the Toga app was to let briefcase work its magic with it or something?

[final flicker]

both

briefcase makes it a exe/app/whatever unix uses these days

but to use it with only python

you use:

python -m my_file_without_the_py_ending```

[tawny gust]

unix uses anything

[final flicker]

lul

[lethal bobcat]

how would you guys name a multiplatform article reader app?

[proper glade]

MARA

Multiplatform Article Reader App

@lethal bobcat

[lethal bobcat]

@proper glade nice one

[proper glade]

i get %75 of all profits

😄

[lethal bobcat]

lol

wish i would have seen the name

or ARAM

Raam reader

how about 50% @proper glade

[proper glade]

60

150%

im doubling my original offer

it's a great deal you should take it

[lethal bobcat]

lol

such percentage much wow

[clever socket]

how do i make a ui for python? can i use VS for that

[tawny gust]

vs? visual studio?

pygame, tkinter, pyqt5, pyside2, kivy

those are all "good" libraries

[clever socket]

vs as in visual studio yes

and thanks for the suggestions

[final flicker]

@tawny gust hey ive switched to pyqt simply because it has more

but i dont remember how to use the .py file generated by the designer

[tawny gust]

designer shouldnt generate a py file

use pyuic5 <uic_file> -o <py_file> to convert it to a python module

[grizzled creek]

there seems to be an issue with jedi intellisense and pyqt5 on VSCode and maybe other editors.

intellisense for me doesn't quite work with pyqt5

[final flicker]

@tawny gust yeah i have that

import sys
from PyQt5.QtWidgets import QDialog, QApplication
from ui_untitled import Ui_Dialog

class AppWindow(QDialog):
    def __init__(self):
        super().__init__()
        self.ui = MyDialog()
        self.ui.setupUi(self)
        self.show()  

app = QApplication(sys.argv)
w = AppWindow()
w.show()
sys.exit(app.exec_())```

[grizzled creek]

It seems to be because pyQT is a compiled library so ...there's no information about return types in them

[final flicker]

i get an error on the 2nd line

i remember they changed the api but not to what

[tawny gust]

oh i couldnt tell you right now

[grizzled creek]

is the error you get No name?

[tawny gust]

@final flicker go look in the Qt C++ docs

should be good for this

[final flicker]

C++ docs say its there

ok seems i dont have pqt5 installed

???

but i can import PyQt

[tawny gust]

pyqt is v4 i think

[digital rose]

@proper glade I got some help from Reddit with my problem, but here's how I did it before

def checkdir(self, event):
        del self.second_list[:]
        del self.my_list[:]
        
        # choose folder
        self.value = self.selector.get()

        [self.my_list.append(os.path.join(r, fi)) for r, d, f in os.walk(self.path + "/" + self.value) for fi in
         f if fi.endswith('.xlsx')]

        self.second_list = self.my_list
        self.filer.delete(0, tk.END)

        [self.filer.insert(tk.END, os.path.basename(n)) for n in self.my_list]

    def write_selected(self):

        del self.chosen_files[:]

        self.items = map(int, self.filer.curselection())
        self.items = self.filer.curselection()

        self.selected_list_of_items = list(self.items)

        [self.chosen_files.append(self.second_list[i]) for i in self.selected_list_of_items]

and here's how I do it now:

# init dict to for searching files
file_dict = {}

# for full path of file, in my_list, add the full path to file_dict with the key of "basename"

for fullpath in self.my_list:
    file_dict[os.path.basename(fullpath)] = fullpath

# for every item chosen in self.itemstrings,
# if the key exists in file_dict, append its value(fullpath) to self.chosen_files list.

for item in self.itemstrings:
    if item in file_dict:
        self.chosen_files.append(file_dict[item])```

hm, missing a piece on the last bit, but basically I'm searching in a dict

[grizzled creek]

Would I be able to build something like this with PyQT?

https://www.designyourway.net/diverse/5/uidash/2205322.jpg

[digital rose]

I think kivy is more in that neighborhood

[grizzled creek]

well i guess another gui to learn

i'm hoping that the more guis i learn

the better i get

[final flicker]

@digital rose kivy can do that?

Isn't kivy for mobile?

[fallen blaze]

you can use kivy on desktop as well afaik

[sinful ingot]

Could someone help with making this layout in tkinter?

[digital rose]

@final flicker from the website: Kivy runs on Linux, Windows, OS X, Android, iOS, and Raspberry Pi. You can run the same code on all supported platforms.

@sinful ingot doing that in tkinter will take some serious amount of code. You're better off with something like kivy

but if youre serious about doing it in tkinter, a good start would be here: https://tkdocs.com/tutorial/styles.html

[grizzled creek]

@sinful ingot i think you can probably do that with frames.

three columns, a frame in each, then two or three columns in the middle frame.

make the top label span the 2 columns

make the bottom button span the three columns.

[digital rose]

Is it possible to share a tkinter.StringVar() through classes? I have set up my frames in separate classes, and i have one entry that i would like to share on all entries.

[summer storm]

What's the easier one to use VS or Tkiner? Just feel like Tkinter has issues in terms of its difficult to work with as you need to continuously run the program. With VS you can just simply design it an then code beneath it right?

Had a go at tkinter but it just feels a bit... How do I put it? ’shit’

Maybe it's just me?

[digital rose]

VS ?

whats VS ?

[summer storm]

Visual studio

[sinful ingot]

@digital rose Thanks for the advice

I'm going to try to create it using kivy

Do you know if you can embed matplotlib into kivy

[digital rose]

@sinful ingot First answer here: https://stackoverflow.com/questions/44905416/how-to-get-started-use-matplotlib-in-kivy/44922317

But what do you mean make layout and code beneath it in VS? Do you mean like in C# ? Wysiwyg ?

[grizzled creek]

i'm failing at kivy

I'm trying to make a bezier line with points attached to two different widget's positions

but it's not working

[grizzled creek]

does anyone here have experience with Kivy?

[grizzled creek]

I've managed to drawable beziers now to the next step how to connect it to a widget: https://cdn.discordapp.com/attachments/283631895273537546/501023829360115722/unknown.png

gotta get a widget by reference

[grizzled creek]

I'm gonna figure this out but i need more information. I should do more tutorials.

[grizzled creek]

or i guess we don't share discord links to other places.

I found a kivy discord that helped solve my problem and i got nodes working. links here:

https://www.reddit.com/r/kivy/

[subtle slate]

slowly getting the hang of GTK

its a weird beast but there's some things about it I rather like

some things are

really not straightfoward

but I can generally figure out how to get them done

packaging a pygi program on windows tho is beyond me

[quick jewel]

im making a game thatll mostly be using GUIs than player movement n such as its a pet game, yall think i should use kivy or pygame? i dont know which is better for guis but both have been recommended to me

[grizzled creek]

@quick jewel i'm not sure. kivy is great for my purposes, but I've found it rudimentary in that it's highly customizeable. you'll need to customize a lot when you get it out of the box...which is prolly fair of any library.

[sage umbra]

does anyone know any good thorough pyqt tutorials? completed watching sentdex's tutorials and still not confident enough

[proper glade]

that looks neat @grizzled creek

what you making?

https://github.com/baoboa/pyqt5/tree/master/examples
http://zetcode.com/gui/pyqt5/firstprograms/
https://pythonspot.com/pyqt5/
@sage umbra

havent tried these myself but they might help

[grizzled creek]

@proper glade I'm making a nodal editor

[proper glade]

editing what

just abstract nodes?

[grizzled creek]

it's a mission editor.

And it represents steps and conditions at each step as nodes.

[proper glade]

ah right

cool cool

[grizzled creek]

I figured it would be easier for who doesn't want to write long multi parameter statement that might be confusing

[proper glade]

definitely

i know that feel

[digital rose]

is it much work to plug a progressbar into my existing code? like, can I write a class that gets called before every time consuming task? Working with tkinter. was hoping to use ttk

[grizzled creek]

this is where i'm at with my application.

[twilit wind]

That looks nice, what did you write it in?

@grizzled creek

[grizzled creek]

Python Kivy and Kivymd

[twilit wind]

Hmm, that looks interesting

Looks like kivyMD is not that well looked after anymore

[grizzled creek]

I have to kitbash a bit

kivyMD still works.

but it's not a library i want to use right out of the box... except for the theme stuff.

i have to customize a fair few bits.

[twilit wind]

I liked that it is inspired by Material

And has a few bits in it but I can see how you need to kitbash a bit

[grizzled creek]

it's good to load the kitchensink demo to see what's in it

this is my chain of widgets

WindowLayout: (FloatLayout)
    WindowMover: (Label)
        BoxLayout:
            MainLayout: (BoxLayout)
                BoxLayout:
                    ImageButton:
                        Image:
                    '''
                ScreenManager:
                    Screen:
                        NavigationLayout:
                            MDNavigationDrawer:
                                NavigationDrawerToolbar:
                                NavigationDrawerIconButton:
                                '''
                            ScrollView:
                                MissionDetails:
                                    Toolbar:
                                    Image:
                                    loads of Label widgets:
                                    BoxLayout:
                                        MDRaisedButton:
                    '''
            StatusBar```

I'm hoping this is normal...

but i reckon i'm not doing things as well as i could.

[twilit wind]

Thanks, I've been looking for a new UI framework for cross platform apps and this looks good

[grizzled creek]

Which Ui frameworks have you used?

What can you tell me about how the ones you've used handles?

I should mention kivy only supports one window.

You can have pop ups but that exist in the kivy app.

[twilit wind]

I have not really used that many, I'm a Web dev so tried electrum but the whole Chromium deal is not my jam

Then I did some dipping the toes into Qt but I want something a bit more lightweight for the project I have in mind

[digital rose]

@grizzled creek looks good

elite dangerous?

[grizzled creek]

yes

I don't know if my project (and kivy) is lightweight

[digital rose]

ugh.. I'm having such a hard time understanding how to tie a ttk progressbar to the duration of my functions.. for cleanliness I want a class that I just run right after I call my function wich pops up a ttk progressbar, is something like that available? I've seen some examples using tqdm_gui but then I would have to know the time the operations take, and that is not really set since I can choose the amount of files to do the operation on.

[grizzled creek]

can't you tie a float for the progress bar to a variable that's set to accept float

[digital rose]

I think I'm just going to migrate to pyqt 😑

[sage umbra]

good choice

[stiff elm]

Where can I find an easy to understand guide for creating interfaces in the terminal?

I've been trying to search around for guides and I can't find anything that does anything close to explaining how to learn.

[grizzled creek]

Building a terminal interface from scratch?

[digital rose]

pyqt4 or 5?

i mean, Wich should I go for?

[fallen oxide]

5

[digital rose]

and that is free to use ? I heard there were some licensing stuff with 5

[fallen oxide]

They're both free to use for non-commercial purposes

[digital rose]

well.. it's for an internal use app at my work place. grey area? 😅

[fallen oxide]

You're probably okay if nobody tries to sell it

IANAL though

[digital rose]

hehe, ok

anyway, i think ill go for 5 then. But if i want to use the designer. How hard is it to design, convert and then import my design to my project and then tie stuff up from there? I mean, it would be great if i could never touch my design file in case i want to change it later on?

are there any good tutorials that take the designer in to account?

[desert sapphire]

on PyPi it says PyQt5 is gpl v3, that allows commercial use

But you'll have to license your app with a gpl v3 compatible license

If it's only internal that's not really a problem

[digital rose]

Ok, thanks for clarifying

[fallen oxide]

PyQt5 is gpl, yeah

the official implementation, pyside2, is under the usual Qt license though

[digital rose]

ok

So.. installing pyqt5 in a venv did not go so well

i did pip install pyqt5 and also the pyqt5-tools

but when i try to pyuic5 -x file.ui -o output.ui i only get a dll error.

from PyQt5 import QtCore
import error: DLL Load failed```

my python3.dll is inside Scripts in the venv

[fallen oxide]

Sounds like it was compiled for the wrong architecture or something

I have no idea how to help with it unfortunately

[digital rose]

is it possible to install pyqt5 in a virtual environment? or does that require tinkering?

hm.. worked fine on windows 10, but not on windows 7. oh well :p

[digital rose]

if i want to get the current text from my combobox, i am told to do combobox.currentText().. but that does not get anything. Do i have to store the combobox stuff in a variable? like in tkinter? I populate the combobox with a py combobox.addItems(next(os.walk(self.path))[1])

nevermind, was using the wrong combobox value.. >.<

[digital rose]

is it possible to make a tracing filter for a QListWidget?

[digital rose]

ha!

    def filterClicked(self):
        filter_text = str(self.ui.filter_box.text()).lower()
        for index in range(self.ui.list_box.count()):
            if filter_text in str(self.ui.list_box.item(index).text()).lower():
                self.ui.list_box.setRowHidden(index, False)
            else:
                self.ui.list_box.setRowHidden(index, True)

\o/

[stiff elm]

The interface I want to create would use something like ncurses or urwid. I can't find anything that has a sane explanation. Good explanation for a lot of things is hard to come by.

[digital rose]

trying to use a QThread on my progressbar. But it does not seem to work. My task gets done, and then the progressbar fires off

wrote it like this:

class TaskThread(QtCore.QThread):
    notifyProgress = QtCore.pyqtSignal(int)

    def run(self):
        for i in range(101):
            self.notifyProgress.emit(i)
            time.sleep(0.001)

        self.notifyProgress.emit(0)

class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None):
        super().__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)  

        # progress bar
        self.ui.progressBar.setValue(0)
        self.ui.progressBar.setRange(0, 100)
        self.task = TaskThread()
        self.task.notifyProgress.connect(self.onProgress)

        def onProgress(self, i):
            self.ui.progressBar.setValue(i)

    def task_iterate(self):
        self.task.start()```

[digital rose]

hm.. should I switch things around perhaps? run the task in a thread?

[sinful finch]

So, I need to make a borderless frame, it has to look like Discord loading widget.

The one with the updates and stuff.

I was using Kivy, but I realized I can't make it borderless.

Well, I can, but it becomes undraggable so it's not a good idea.

[desert sapphire]

why must it look like discords loading widget

[sinful finch]

That's what I want it to look like.

[sinful finch]

hmm I'm using window.top/window.left

[umbral plinth]

hallo
someone can pls helpings with tkinter?
how do i make the key presses more smooth
like atm. it looks like this
https://gyazo.com/2b1a6aa425ca2ee40957635b75f63a67
when i hold it for more than a second. its smooth
but it suddenly pauses at 1 second of holding it

canvas.move(circle,10,0)
thats what im moving atm to move 10pxls to the right

[digital rose]

is there any GUI builders out there for Python 3?

[pure cypress]

@digital rose there’s pyqt which has qtdesigner

[digital rose]

so you can design a form and add stuff to it?

[pure cypress]

Yeah you can layout all the components and then all you need to do is hook it up to your code. It’s very similar to JavaFX

[digital rose]

thanks

[pure cypress]

No worries 👍🏻

[sage umbra]

I’m trying to make a social media program in pyqt - and I’m not sure if there’s a way to upload pictures using pyqt?

[fallen oxide]

I mean... sure? You're still writing Python

[sage umbra]

Yea but like how discord has the upload image when you add a profile picture - is there a way I could do that?

[fallen oxide]

well sure, you make the UI elements and then you write some python to do it

and tie it togther

Maybe you need to ask a better question :P

[digital rose]

get this when i try launch pythons command line

oof realised wrong channel

[digital rose]

there is a gui builder for tkinter as well, but it is pretty outdated

http://page.sourceforge.net/

[dense whale]

I'm using PySide2 and QTDesigner,
I saved my ui as a .ui file.

class Form(QObject):
 
    def __init__(self, ui_file, parent=None):
        super(Form, self).__init__(parent)
        ui_file = QFile(ui_file)
        ui_file.open(QFile.ReadOnly)
 
        loader = QUiLoader()
        self.window = loader.load(ui_file)
        ui_file.close()```
```py
if __name__ == '__main__':

    app = QApplication(sys.argv)
    form = Form('main.ui')
    sys.exit(app.exec_())
```How can I edit the stylesheet considering that I'm using a form class.

idk if that even makes sense. ^ .But whenever I try to edit the stylesheet by doing self.setStylesheet ,it gives me this error : 'Form' object has no attribute 'setStyleSheet'

[tawny gust]

you know, you can just use pyuic5 to convert your ui file to a python module

and, I don't believe that Qobject implements setStyleSheet, it may be a more specific class

[dense whale]

Oh. K. Thanks!!! @tawny gust

[dense whale]

just found out for pyside, you can use pyside2-uic.exe

[shy herald]

Hello, any ideas on how to make a tkinter app be only in the system tray and not in the task bar when running?

[final flicker]

im using qt and if i remember you cant realy use normal threads with qt. is this true and if so how can i work around this?

[unique lodge]

hey there ! Do you guys know out of the bat how i could access an item from a tree model ? Like getting the text from selected item?

[digital rose]

pyqt ?

@unique lodge

http://pyqt.sourceforge.net/Docs/PyQt4/qtreewidget.html

@final flicker Use QThread

QtCore.QThread

[unique lodge]

yes exactly that @digital rose

attributes = ["Translate", "Rotate"]
attribute_axis = ["X","Y","Z"]

   for attr in attributes:
       self.label =QtWidgets.QLabel(attr + ":" )
       self.hbox_mirror_attr.addWidget(self.label)
       spacer = QtWidgets.QSpacerItem(100,0)
       self.hbox_mirror_attr.addSpacerItem(spacer)
       for axis in attribute_axis:
            self.checkbox = QtWidgets.QCheckBox(axis)
            self.hbox_mirror_attr.addWidget(self.checkbox)

If iam doing it like this - how could i acces the created checkbox later on? Since only the last checkbox will be saved in the variable?

[final flicker]

@digital rose i can use a qthread to run normal threads?

[final flicker]

yes i can

wtf

[patent palm]

hi, could anyone help me figure out why i can't properly install the pyqt4 .whl? my problem is that i can't run my python code for the ui because there is no pyqt4 module.

i copied the whl file in my python directory and then tried to pip install it and it says it's not suitable. i got the right whl file but it's still not working for me

[final flicker]

you might need Qt4

[patent palm]

i downloaded winpython basically and i assumed it would have everything i need

[final flicker]

have you used pythonbefore this?

@patent palm

[patent palm]

no, i've been using c/c++ but i have a project for this year where i have to build a software in python

i tried doing my research beforehand but i can't wrap my head around this

[final flicker]

ok try just learning python first, because uis in python are VERY complex

unless its due next week. then just start copy pasting form stack overflow

[patent palm]

haha it's due like next year

i've been starting to learn simpler things but i wanted to have everything i need downloaded

[final flicker]

what os are you on

[patent palm]

i'm on win10 but good news: deleted a bunch of stuff and it now runs perfectly

thanks for trying to help me

[final flicker]

Np

[tender spruce]

Can matplotlib be done differently somehow?

I'm not asking for alternatives that exist.

Just thinking there has to be a better way

[odd hamlet]

counter question

what is there to improve

@tender spruce

[tender spruce]

Nothing I guess. Functionally does everything. I liken it to some sort of analog audio apparatus with several dozen knobs to fine-tune things

Minus my ability to see all the knobs at once,

Or speed with which fine-tuning these knobs gets me the results I need

Maybe some higher abstraction or design principle can either reduce the amount of knobs or make the process of inferring which knobs exists easier

[boreal loom]

@tender spruce seaborn

https://seaborn.pydata.org/

Seaborn is a Python data visualization library based on matplotlib. It provides a high-level interface for drawing attractive and informative statistical graphics.

its pretty much exactly what you are asking for 😄

[tawny gust]

seaborn is it

[tender spruce]

This is an mpl wrapper?

[desert sapphire]

Probably a python wrapper for boosts metaprogramming library

[tender spruce]

Metaprogramming sounds really cool what is it?

That is to say can you provide an incredibly short answer or analogy that Google can't

[tawny gust]

programming the programming language with the programming language

[tender spruce]

I think you responded in less than a second

Thanks for the quick and otherwise use full response

Wait I'm now trying to imagine a compelling reason anyone would want to program the programming language they're programming with

[tawny gust]

why not

syntax extensions, etc

[boreal loom]

Metaprogramming = code as data

parsing code, analysing it and generating new code

can be used to save time by generating code you would want to write by hand
can be used to extend syntax as Jack said
can be used to create a DSL (Domain-Specific Language)

[tender spruce]

In what case does generating code help you?

[digital rose]

what is the proper way to execute stuff on load in pyqt? just call a function in the mainui? or in object.exec() ?

[grizzled creek]

does anyone here know how to do zoom in on point?

[digital rose]

zoom in on a what now?

[grizzled creek]

on mouse position

i've been trying to write the code for it for a kivy app but i'm failing

[short walrus]

Hi there! I'm having trouble displaying a cv2 image in a QWidget continuously. I managed to display it for some time using setPixmap on a QImage generated from my cv2 image, but after a while the interface stops getting updated. I'm using the threading module to get new camera frames. Does someone have an idea why this is happening?

[raven hedge]

Hey, what would your guys suggestion be for creating a GUI for a desktop application for trading and managing a stock portfolio. I want to utilize material design but I'm not sure where to start since it's my first time creating any sort of GUI

[drifting sundial]

A web gui might be easiest if you're looking for material design

Pywebview is a good host for that sort of thing

[raven hedge]

I was hoping to just keep it limited to a desktop application but would that not be feasiblem

[tidal spruce]

HTML is the best looking

you can sacrifice looks for a desktop app

[sinful finch]

Anyone knows how to package kivy properly?

I package my app and it works only in my PC

[meager heart]

Hello folks!

Anyone got a second to help me with something?

[dapper breach]

I see your issue

openFile needs to be indented just like __init__ AND you need the call back to be self.openFile

@meager heart

[meager heart]

What do you mean callback to the self.openFile?

[dapper breach]

Button(frame2, text = "Browse", command = self.openFile).pack(side = LEFT)

the command.

it works like a callback.

[meager heart]

Okay. I see.

[dapper breach]

Whenver a Class accesses its own fields and/or methods they need to be prefaced with self.

[meager heart]

I need help with getting it to open the file manager so one can actually "browse."

[dapper breach]

did it run your function?

[meager heart]

What do you mean? After I changed the code?

[dapper breach]

yes

making sure we tackle 1 issue at a time

[meager heart]

Yes, it did run it

[dapper breach]

its just not doing what you want, which is browse.

I'm less help there, unfortunatly.

[meager heart]

Yeah. It's throwing me an error, but that's related to askopenfilename(), which doesn't even have a definition as of yet

[dapper breach]

I noticed that

wasnt sure it if that was some imported function or not.

[meager heart]

Man. I don't understand why this is so difficult. I can't seam to find an answer anywhere.

You'd think if the book is going to give you a problem like this, it'd at least define something like that.

[dapper breach]

hehe gimmie a second.

this kinda what you want?

[meager heart]

Hmm. It's not running for me.

[dapper breach]

you on windows?

[meager heart]

yeah

[dapper breach]

that code is for linux

python 3 or 2?

[meager heart]

3

[dapper breach]

oops

from tkinter import filedialog
from tkinter import *
 
root = Tk()
root.filename =  filedialog.askopenfilename(initialdir = "/",title = "Select file",filetypes = (("jpeg files","*.jpg"),("all files","*.*")))
print (root.filename)

pasted the wrong code. here is the py3 one

still linux.

[meager heart]

Yeah. That's exactly what I wanted!

[dapper breach]

Yay!

[meager heart]

I'll work that into what I've got. Thank-you so much!

[dapper breach]

you are welcome

[meager heart]

Easy enough to put in. Now to finish this bad boy up.

[sage umbra]

PyQt4 Ive got one program that users sign in and then a main script for the main profile area. The thing i cant find anything on is how do I pass variables from one window to another

ie username

[final flicker]

@sage umbra save the username or whatever to a file if you need to save something cross process

Or if you are calling one window from the other pass it as an arg

[sage umbra]

how

i did it mom!

[final flicker]

Yay

[digital rose]

How do i make a popup window class in PyQt5 ? i cannot get it to show when i call it.

class PopupResult(object):
    def __init__(self, master, sheet_type, name):
        self.sheettype = sheet_type
        self.name = name

    def run(self):

        if self.sheettype == "Helium":
            text, result = QtWidgets.QInputDialog.getText(self, f"Result for {self.name}", "Enter result:")
            if result:
                return text

I am trying to replicate what i have previously done in tkinter

and then i call it with: ```py
self.popup(self.file_dict[item], sheet_type="Helium")

[digital rose]

ofcourse i forgot to paste something:

    def popup(self, file, sheet_type):
        sheetval = sheet_type
        self.w = PopupResult(self, file, sheetval)
    self.popup(self.file_dict[item], sheet_type="Helium")

[tidal spruce]

flexx or wx or tkinter?

[dense whale]

So, I was testing out this example: https://github.com/pyside/pyside2-examples/blob/dev/examples/designer/calculatorform/calculatorform.py .
But when I tried it for my app, it doesn't work and gives me an error: Traceback (most recent call last): File "C:\Users\avib\Desktop\Python - Programming\disrp\mainmain.py", line 9, in <module> class MyApplication(QtGui.QWidget): AttributeError: module 'PySide2.QtGui' has no attribute 'QWidget'.```py
import sys
##################
from PySide2 import QtCore, QtGui

##################
from main_ui import *
#################

class MyApplication(QtGui.QWidget):
def init(self, parent=None):
QtGui.QWidget.init(self, parent)

    self.ui = Ui_MainWindow()

    self.ui.setupUi(self)

if name == "main":
app = QtGui.QApplication(sys.argv)
Formm = MyApplication()
Formm.show()
sys.exit(app.exec_())

Anyone know what I'm doing wrong?

[digital rose]

is pyside using pyqt4 or 5 ?

because QtWidget is moved to just QtWidgets i think, in pyqt5

[dense whale]

pyside2 @digital rose

[frigid reef]

Hey all, I'm using PyQt5 for this:
https://i.imgur.com/q3TB7FT.png
So as you can see I am making a simple IM application as a personal project - each message is it's own widget as I will want the ability to delete, edit etc. The problem I am having is that I want the three dot icon (a skinned push button) to expand to be at the edge of the ScrollArea rather than sit next to the message like it currently does. This confuses me, as in the designer, it expands to the edge of the window:
https://i.imgur.com/CnzG8ZB.png
Is there a setting in the FormLayout/ScrollArea of the main UI that I should change to allow it to expand properly? I attempted to set the width in code to match the ScrollArea width but that didn't seem to work - I've been fiddling with various settings in the designer and have run out of options to try. Thanks!

[frigid reef]

If there's a more niche qt/pyqt place I can ask please point me there!

[bleak smelt]

@frigid reef Have you tried a horizontal spacer?

[frigid reef]

How would you recommend I use it in this regard?

I attempted to set the width of it but not much seemed to happen

[placid swallow]

Hi everyone! I'm new with pyhton and i would like to create a GUI app for raspberry.

Wich GUI library could you recomend me? I found kivy very interesting

[bleak smelt]

@frigid reef Depends on how your window structure honestly. are you using a layout for the window where the text is being displayed?

@placid swallow Depends what you're wanting to do. Tkinter is quick and easy, very basic, or you have PyQt which is very expansive

[placid swallow]

I just need 4 windows, with not so much buttons... and it will only be for raspberry not cross-platform

@bleak smelt

[bleak smelt]

@placid swallow You may want to explore tkinter then.

[placid swallow]

Perfect! Thank you very much!

[frigid reef]

@bleak smelt They're being loaded into a QScrollArea with a QFormLayout inside of it

[bleak smelt]

What does your code look like when adding to the scoll area?

[frigid reef]

newWidget = MessageWidget() # Create a new message widget
      newWidget.timeLabel.setText(message.timeSent)
      newWidget.usernameLabel.setText(message.senderName)
      newWidget.messageLabel.setText(message.contents)
      rowCount = self.messageLayout.rowCount() # Get the amount of rows in the message container
      self.messageLayout.setWidget(rowCount, QFormLayout.LabelRole, newWidget) # Append the new message widget to the end of the container 

[bleak smelt]

So are you creating each message as its own widget and appending it to the scroll area?

[frigid reef]

That is correct yes

[bleak smelt]

Where does the button get tossed into the mix?

[frigid reef]

The button is part of the widget, loaded from XML, let me get you the class

[bleak smelt]

You could try setting the alignment for the button , instead of using a spacer

[frigid reef]

class MessageWidget(QWidget):
  def __init__(self, parent=None):
      super(MessageWidget, self).__init__(parent)
      loadUi("message.ui", self)

[bleak smelt]

are you using python 3?

[frigid reef]

yes

[bleak smelt]

change your super to super()

no need to specify anymore

[frigid reef]

ah ok

[bleak smelt]

also, see if you're able to set the alignment for the button to the right, let me know how that goes

[frigid reef]

The button doesn't seem to have an alignment property

[bleak smelt]

are you adding the button to a layout?

[frigid reef]

I thought so

I have one within the scroll area

[bleak smelt]

so the layout of the scrollarea is a form layout.. but, what is the layout of the message widget you're adding each time?

[frigid reef]

ah right

Grid I think

[bleak smelt]

and if you're tacking the button to that widget, you'll want to add a layout to that widget so you can use alignment.

Maybe grid isn't the best option?

[frigid reef]

changed to horizontal, doesn't seem to have effected it

[bleak smelt]

maybe you're adding it all to one cell of the layout

[frigid reef]

In the designer, as I scale up the widget size, the button sticks to the right fine

[bleak smelt]

ok.. but does it not when you first open?

[frigid reef]

Not when loaded as a widget rather than a window, no

[bleak smelt]

hmm.. without seeing all of the code, I can't say for sure

[frigid reef]

eg:

[bleak smelt]

maybe an update() or repaint() is in order..

[frigid reef]

what do I call the update() on, the main window?

[bleak smelt]

depends on how the button is getting added.. maybe the entire widget, maybe the widgets your adding..

[frigid reef]

Attempted to repaint/update on the entire window, the widget and the scroll area

no dice

[bleak smelt]

hmm

[frigid reef]

https://github.com/darthmorf/Photon/blob/27484c7f43ba08e58e0a979d19e125bc0ce3efcf/Client/main.py#L86

That's the source btw

[bleak smelt]

let give it a look'

[frigid reef]

thank you!

[tropic ferry]

hey i was asking a q in help-0

about using tkinters entry func to then grab the inputs and use them in a function like they were defined

[frigid reef]

It may be easier to delete the button and start again with more info on how to align/add it properly

[digital rose]

how would I connect up a signal to a pop-up class I am creating in pyqt5? I have a main UI Wich starts a threaded loop operation/iteration, and in that operation I need to spawn a pop-up Wich I can input some text Wich then will get stored in a variable I use later in the same operation.

[digital rose]

self.trigger.connect(QtCore.Qt.DirectConnection, self.popup, self.threadDone)
TypeError: Qt.ConnectionType expected, not 'ConnectionType'

Seriously this is confusing as heck

[craggy hollow]

what are some fast python GUIs to use

[bleak smelt]

Anyone know how to use PyQt QTimer for hours, not milliseconds?

[final flicker]

yes

1 hour = 3600000 milliseconds

@craggy hollow how fast do you want it?

[bleak smelt]

yikes.. thanks

[final flicker]

hahaha

sry do you mean if you can pass it a arg that specifies hours or min or whatever? @bleak smelt

[bleak smelt]

@final flicker I was looking for a better option. After some research, I think the module sched is what I want to use, instead of a QTimer. I think the QTimer usage in PyQt is more for timing widget elements.. and I want to do is call a function after an amount of time lapses, in the background, not affecting any widget element, in that manner.. sched has an option for hours, so I'm going to go with that instead.

[final flicker]

Sure

[dense whale]

Anyone know how to package a PySide2 app.

[small compass]

if you're on linux and you need to package your app into .deb or .rpm, package it as you would do and add qt (or whatever they are using) and python to deps

on mac I think you need to add a python and qt frameworks

on windows I think you need to add qt libs alongside your python interpreter?

[rain quarry]

Is anyone here familiar with making prompt_toolkit interfaces? I'm having issues comprehending how to use it

Also @fallen oxide it's fine to ask about CUIs here too despite the channel description saying it's only GUIs, right?

[fallen oxide]

Does it?

I don't think it does

[rain quarry]

I see what you did there 😉

[tall reef]

For some reason when I run my tkinter program the entry fields are not t lining up properly with their assigned grid placements. I have marked the issue under the Engineers class. Would any one be willing to help me and take a look please 😃

https://hastebin.com/ezojoviniw.rb

This is my output

[sage umbra]

Is there a way to close the main window and then open it again? Ie ive made a login window and when you login you get the main program - is there a way to get back to the login screen?

[kind kraken]

@bronze tusk you didn't pass self when you created the Entry objects, so it assigns the parent to be the Tk root instead of the Frame.

Also, I would suggest creating the navigation buttons outside the Frame, and possibly using a tab control [ttk.Notebook], but that's a mroe general design thing

@sage umbra would have to know more about the structure of your program

you could just create another login screen

Oh, here - you can hide without destroying by doing withdraw() - https://stackoverflow.com/questions/1406145/how-do-i-get-rid-of-python-tkinter-root-window

(Some parts of that answer also explain how to not use the root window at all, or at least not show it at program startup)

[abstract ice]

Has anyone here worked with kivy?

[near lagoon]

@abstract ice I'm working on my first kivy project atm

[bleak smelt]

Anyone know if its possible to enable and disable the console from a compile pyinstaller app? I have a spec file that disables it on compiling, but I'm looking for a way to enable it when I need it without having to recompile again..

[dense whale]

I'm using PySide2. Any one know how I can get a drop shadow on my QFrame?

[bleak smelt]

With PyQt5, anyone know if there is a way to detected when the mainwindow is moved by dragging the windows frame title bar?

[frigid reef]

@bleak smelt there's a widget move event, which might help: http://doc.qt.io/qt-5/qwidget.html#moveEvent

[bleak smelt]

@frigid reef Yeah, i was looking more for when the window is moved by the titlebar that WDM creates...

[frigid reef]

ah

[bleak smelt]

I just decided to implement a timer that grabs the x and y on interval

[dense whale]

hey. how can i add a drop shadow using QT Styling. im using pyside2.
I want a shadow on the white boxes.

[raven hedge]

could anyone help with a grid layout im trying to do? Im following a PyQt tutorial and im trying to do a grid layout for a calculator and I have the exact same code as the tutorial but nothing is showing up

grid = QGridLayout()
self.setLayout(grid)

    names = ['Cls', 'Bck', '', 'Close',
             '7', '8', '9', '/',
             '4', '5', '6', '*',
             '1', '2', '3', '-',
             '0', '.', '=', '+']
    positions = [(i,j) for i in range(5) for j in range(4)]

    for position, name in zip(positions, names):

        if name == '':
            continue
        button = QPushButton(name)
        grid.addWidget(button, *position)

[delicate wharf]

Hello people! I want to make an application that has a window icon and a file icon and I want to be able to compile it into an exe

what should I use?

I tried tkinter but I couldn't really figure out how to do it

[winter gazelle]

I'd like some advice. I've been making a small program involving some photo editing using Python GUIs. I got started by using Pygame, and because of that, I had to do a lot of work manually. The good thing is that most of that work is already done, and finishing the project in Pygame wouldn't take too long.
However, I've been wanting to switch over the PyQt5, not only because it's more professional, but also because it has some really useful widgets. However, I don't understand it at all, and I've gotten stuck very early into the rewrite. If I finish it in Pygame, it'll be done faster, but if I finish it in PyQt, it'll function better. But I'm not sure if the time I'll take fully learning PyQt5 will be worth it. Thoughts?

[sudden coral]

Using pygame solely to create a GUI application is strange. I would advocate to switching to something more proper like PyQt5. "Is it worth it" is tough for someone else to answer. In terms of improving your coding skills, yes it's a good opportunity and worth it. However, if you have some sort of deadline then that complicates the answer.

I imagine using PyQt5 will make your project more maintainable and extendable as well

[tight bear]

Pygame only really provides help with basic graphics and user input. You would have to build quite the foundation yourself, although it depends on how advanced of a GUI you want.

[winter gazelle]

I'm not on a time limit. The nice thing about Pygame is that I can use a simple while loop to control everything, while PyQt's events are forcing me to learn stuff like multithreading on such a simple project

Plus I'm just having a much harder time finding good PyQt tutorials

[tight bear]

So what kind of GUI are you making?

[winter gazelle]

It's kind of complicated to explain, but it involves replacing colors from the image(s) with other colors

I need to cycle through a few images and make transformations to each before displaying them.

In Pygame, this is simple. You just do the transformation, and the rest of the GUI responds instantly after the image is displayed. But in PyQt, I think you have to move the image editing to a separate thread, which is just turning out to be insanely complicated for some reason

[tight bear]

Do you want the application to be interactive, pressing buttons and such live?

[winter gazelle]

Yup. Keeping the rest of the GUI responsive is the problem I'm facing in PyQt

[tight bear]

I'm thinking it could be worth investing in PyQt because it seems more appropriate for the task, but it's up to you. In Pygame you're going to have to create a lot of things from scratch.

Well, as in generic GUI elements such as buttons, sliders, check boxes, what have you.

[winter gazelle]

I guess I'll keep pressing on in my attempts to implement the multithreading, then.

[tight bear]

Might be worth mastering something new! Multithreading is found everywhere.

[winter gazelle]

Thanks for the advice.

[wind locust]

Label(win, text='AccountManager').pack()
how would I color the text? i tried bg='red' but it doesnt work
this is tkinter

nevermind

[winter gazelle]

How would I run a QColorDialog window while still having the QMainWindow run?

[raven hedge]

If anyone could help me that would be great, Im trying to just make so that in one window, theres a search bar and a open space to information. The user would type something into the search bar and if what they entered is a predetermined set of items, than that item will appear just below the search bar

[serene spoke]

@raven hedge its easier to help if you share what code you have. Preferably on github, or hastebin

[bleak smelt]

Anyone know of a working spell checker module? Looking to implement it into a PyQt plain text field, not to auto correct, but to find misspelled words and offer a list of acceptable replacements via right click.

[grizzled creek]

does anyone here know kivy?

[fluid stump]

Guys. What would you use for a GUI that is both nice to see and easy to use. Tkinter ? PyQT ? other idea ?

I'm a total noob in term of GUI dev

[dense whale]

Hmm... I would say PyQT/Pyside2. It's quite simple to use and you can make some really good looking GUI's with the help of QT Designer.

It doesn't look that great at the moment but this was made on QT Designer (I'm trying to create a screenshot software just for practice). @fluid stump

[fluid stump]

I'll look at ot

Thx

[dense whale]

np

[fluid stump]

@dense whale do you have any link to QT Designer ?

[dense whale]

Wdum

You get Qt Designer when you install PyQT @fluid stump .

[fluid stump]

okay

is pyQT free ?

i'm reading that you need to buy a licence

for closed source projects

[dense whale]

PyQT is free, but yes, there is a licence.. I don't think PySide2 has a licence tho.

@fluid stump

[wide shuttle]

Hey, if I send it here, can somebody help me with my tkinter code?

I'm coding a game called 'Mastermind', based off of the board game, but I can't get the GUI to work.

[frigid reef]

Certainly can't help without the code/error!

[wide shuttle]

I'll send it in a minute, the code's on my laptop rn

here

[sand void]

anyone here know some good tutorials for PyQt5?

found the docs nvm 😄

[frigid reef]

Sent you a link in #python-discussion 😃

[wide shuttle]

Here's the code I sent earlier in a pastebin: https://paste.pydis.com/azalezasox.py

Any help would be appreciated 😄

[bleak smelt]

I need a way to have my PyQt app ignore windows dpi scaling. Google searching isn't providing me good results.

[sinful ingot]

Does anyone here have experience with wxpython?

[half vapor]

How can I make a label that's text repeatedly updates every couple of seconds with an api call? (in tkinter) window.mainloop doesn't seem to work

[storm latch]

What did you use for concurrency?

[kind kraken]

@half vapor set a timer in tkinter

[half vapor]

how do I do that?

[kind kraken]

def my_callback():
   ...do api stuff
   root.after(2000, my_callback) # call again after 2000 milliseconds
root.after(0, my_callback) # set up to call first time```

or you could use threading

but once you've started mainloop, nothing else happens on the main thread but tkinter related stuff [including timer execution]

[half vapor]

label1 = Label(window, text="")
label1.pack()
label2 = Label(window, text="")
label2.pack()

while True:
    data1 = api request
    data2 = 2nd api request
    label1.text = data1
    label2.text = data2

    sleep(3)

I still don't understand how I'd get this to work?

[swift merlin]

where random put ... do api stuff you can put your

    data1 = api request
    data2 = 2nd api request
    label1.text = data1
    label2.text = data2

however if api request takes more than like 100ms the user will notice

thats why he suggested threading

[wraith sparrow]

hi

I'm quite new to this GUI thing, I'm using appJar for now and I can't figure out how it works ```py
app = gui("Crossroads")
app.setSize(1920, 1080)
photo = ImageTk.PhotoImage(Image.open("feed_output.jpg"))
app.addImageData("Feed", photo, fmt="PhotoImage")
app.go()

print("after gui")``` that print doesn't fire? does app.go() interrupt the code execution?

because I have a loop after that code that basically would replace the image at every second, but that code never executes because app.go() somehow stops the code from going forward

how would I solve that?

[frigid reef]

I'm not familiar with that framework, but most GUI frameworks have a blocking function call that waits until the GUI is closed before continuing

I would guess that app.go() is the same

you may want to investigate multithreading - it's often good practice to have the gui in a seperate thread to the main workings of the program, which avoids this problem

@wraith sparrow (tagging as I'm late to answer)

[kind kraken]

@wraith sparrow you could also consider using a timer (after in tkinter) to replace the image instead of a loop

[wraith sparrow]

yeah the reason I moved to appJar because I couldn't figure out tkinter, but now I kinda realized I had the same problem there

[kind kraken]

http://appjar.info/pythonLoopsAndSleeps/

[wraith sparrow]

oh that's convenient

[kind kraken]

I wish they'd make an asyncio version of tkinter, but the fact that tkinter doesn't support file events on windows makes it complicated to implement one

[frigid reef]

(PyQt, PyQt)

slowly chants

[kind kraken]

does pyqt support asyncio

[frigid reef]

There's a module for it: https://github.com/harvimt/quamash

[kind kraken]

Like in theory you could write a hybrid half-asyncio loop that does asyncio I/O on one thread and the GUI on another thread

[digital rose]

Eclipse is a good GUI for Java/Python to get the perfect GUI(99$).

[final flicker]

@kind kraken im working with something like that atm.

what exactly are you trying to do?

[kind kraken]

I wasn't the one with a problem really

just it's a pretty common mistake to try to write procedural code with loops sleep etc after starting the gui and i was thinking asyncio might be an alternate solution for that instead of teaching everyone to make all their stuff event-driven with timers

[final flicker]

event driven is the way. That and threads

lots of threads

or QObjects

whatever they are called

[kind kraken]

of course, if any of your stuff hits the network you've got to use asyncio anyway if you want your app to be responsive

[final flicker]

hmm lol i built a chat application (not really but it can work as that) without asnycio cus im just to lazy to learn that hah

@kind kraken do you happen to know how to create pop up dialogs?

[wanton tangle]

Did someone ping me?

[final flicker]

yeah, sorry pinged the wrong guy

hit enter too soon

[kind kraken]

@final flicker in what, tkinter?

[final flicker]

oh sorry

PyQt5

[kind kraken]

i've never used pyqt, sorry

[bleak smelt]

@final flicker https://srinikom.github.io/pyside-docs/PySide/QtGui/QMessageBox.html

[final flicker]

thanks @bleak smelt !

[proper glade]

I have a QMainWindow. Inside its __init__ i've got:

self.setMenuBar(MenuBar())

This is MenuBar:

class MenuBar(QMenuBar):
    def __init__(self):
        super().__init__()

        self.file_menu = self.addMenu(FileMenu())
        self.view_menu = self.addMenu(ViewMenu())

And these are FileMenu and ViewMenu:

class FileMenu(QMenu):
    def __init__(self):
        super().__init__()

        self.setTitle('File')
        self.addAction('Open')
        self.addAction('Save')

class ViewMenu(QMenu):
    def __init__(self):
        super().__init__()

        self.setTitle('View')

the problem: the menu bar doesn't show up at all.

idk what i've done wrong

[proper glade]

solved

you gotta create separate references to the menus first

class MenuBar(QMenuBar):
    def __init__(self):
        super().__init__()

        self.file_menu = FileMenu()
        self.view_menu = ViewMenu()

        self.addMenu(self.file_menu)
        self.addMenu(self.view_menu)

[cinder prairie]

anyone here free to help ?

it involves pygame

[storm latch]

Just post your question 😃

[wraith forge]

Okay, Hemlock's dumb question for the day. If you were to pick a GUI library to try and learn, which would be your pick? I'm looking at tkinter wxPython and PySide. I wasn't overly impressed with tkinter when I tried it before, I couldn't find very many tutorials for PySide, and wxPython has been an interesting option to me after a user came in needing help with it the other day. Didn't know if anyone had any strong opinions one way or another.

Ah, sorry, didn't see that question was so recent

[storm latch]

I'm really only familiar with tkinter, it's definitely not the most elegant library, but you can get stuff up and running pretty fast. I would suggest either wxPython or PyQt. I've heard Pyside is good too, haven't really looked at it though.

[wraith forge]

Noted. Thanks Zer0. Any other thoughts out there? Just trying to get a feel for what people have liked using

[kind kraken]

Maybe also look at pygobject (gtk)

I haven't tried it myself though

[wraith forge]

So many options it makes your head spin, you know?

[twin warren]

Been using PySide2 for the past few days. I prefer it over Tkinter, even though there's a lot more that goes into PySide2.

[frigid reef]

@wraith forge I would choose pyqt, has lots of features and you can get a really nice looking app with it

Though it can be a little tricky to get used to at first

I wrote a getting started guide recently if you're interested I'll share the link

Tkinter was painful to use to make a complicated gui, for me at least

[wraith forge]

Eh, I'm less worried about lots of features and more wanting something just fun and easy to use. This is more for just tinkering around than building a big thing

[frigid reef]

How experienced are you with event driven programming and async programming?

Because if you're not used to that style pyqt is probably overkill

[wraith forge]

I mean I did a fair bit of that with discord.py but other than that not terribly

I know the basics and could figure it out

[cinder prairie]

Oh well i posted my question in stack overflow and I'm waiting but if anyone can help here it is https://stackoverflow.com/questions/53363940/how-do-i-include-my-standings-sprites-after-my-character-stops-running

if needed i can provide all my files 😃 i just need help figuring out how to do that thing ^^^

[cinder prairie]

if someone needs more detail i can text in private :))

[final flicker]

@wraith forge I would go with PyQt5. if you download the whole QT suite you get the QT Designer. That lets you whip up ui fast af with simple drag n drop. most questions you will find answered on stackoverflow. since its just a port of Qt to python you can always look at the QT docs to find something because it will be very similar to the python bindings

only problem is if you end up wanting to make money of your apps

pyqt has some weird lisences...

feel free to @ me with any more questions about QT and other frameworks. ive tried quite a lot of them

[wraith forge]

@final flicker Is it possible to use the QT Designer with PySide?

[final flicker]

not as far as i know

QT designer itself just creates c++ code

in pyqt5s case you have pyuic that then converts that to python code

maybe there is a tool that converts the c++ code to pyside code

@wraith forge

[wraith forge]

Appreciate the follow up. I'll look into my options

[final flicker]

np

[twin warren]

@final flicker This might interest you.
I have an image I want to lay as a background to my QMainWindow, but when I do so using self.setStyleSheet() in my class, the function will style everything and not just the background of the Application. Is there another way to do what I would want?

[final flicker]

hmmmmmm. im kinda scared of stylesheets and anything that looks like css so ive never styled anything lol

[twin warren]

That's fine.
Just wanted to poke your brain a bit (and make a public inquisition) about it.

[final flicker]

ok @twin warren check this out!

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QPixmap bkgnd("/home/user/Pictures/background.png");
    bkgnd = bkgnd.scaled(this->size(), Qt::IgnoreAspectRatio);
    QPalette palette;
    palette.setBrush(QPalette::Background, bkgnd);
    this->setPalette(palette);
}```

this is how you do it in c++ so now all you need to do is google the equivalent steps in python

like how to initialize a qpixmap

[proper glade]

holy cow

stay away from QWebEngineView

it is severely bugged

opened one to go to google as a test and later on my pc started acting wierdly. screens shutting off, programs closing

opened up task manager and there's a qtwebengineprocess.exe using 18 GB of RAM and maxing the CPU

all i did with it was literally go to the google homepage. as a test. and then I closed the app.

the memory leaks are real

[frigid reef]

@wraith forge the pyqt designer creates an XML file that is then loaded via a function within pyqt, which is implemented as QUiLoader().

Essentially, yes, you can use the qt designer for pyside

[proper glade]

anyone have experience working with QFileSystemModel?

I want to make a proxy model that can combine multiple QFileSystemModels into one but i have no idea how to and the Qt docs are really quite unhelpful

something like this:

class ProxyModel:
    def __init__(self):
        super().__init__()
        self.models = {}
    
    def add_model(self, path):
        model = QFileSystemModel()
        model.setRootPath(path)
        self.models[path] = model
    
    def remove_model(self, path):
        self.models.pop(path)

and then with all the various overrides to handle accessing items from multiple models in sequence

the motivation: i want to create a QTreeView and add any directory/file into it as a root node

but unfortunately QTreeView only allows one model

[wraith forge]

@frigid reef Oh sick, I'll keep that in mind. I appreciate the heads up

[frigid reef]

No worries, give me a shout if you need anything, I have moderate pyqt experiment

[cinder prairie]

can anyone help me ?
Traceback (most recent call last):
File "H:\Game 3\main.py", line 102, in <module>
g = Game()
TypeError: init() missing 4 required positional arguments: 'game', 'x', 'y', and 'dir'

it's pygame

[final flicker]

you need to call Game like this:
g = Game(game,x,y,dir)

Game requires those args

if you post more code i can help you

also please post it like this:
```py
my code here
```

[cinder prairie]

ah thanks well imma tell you in a second if i need more help :3 thanks

[final flicker]

np

[twin warren]

How do I move a QPushButton within a PySide2 app?
I found a QPushButton.move() function while digging around, but I haven't been able to find any information about it, nor have I been able to find any information about moving buttons otherwise.

My example (that I didn't steal from somewhere):

removed code to save space

And the outcome:

And it seems like I have already found my answer: https://stackoverflow.com/questions/45100018/increase-height-of-qpushbutton-in-pyqt

[bleak smelt]

Anyone know why this is emitted twice?

def wheelEvent(self, event):

    y = event.angleDelta().y()
    print(y)

[proper glade]

using pyqt5
this crashes when on_context_menu is called:

    def open_in_explorer(self):
        subprocess.Popen(['explorer', '/select', self.path_object.absolute()])

    def on_context_menu(self):
        if not self.context_menu:
            self.context_menu = Qt.QMenu()
            self.explorer_action = Qt.QAction('Show in Explorer')
            self.explorer_action.triggered.connect(self.open_in_explorer)
            self.context_menu.addAction(self.explorer_action)
        self.context_menu.popup(Qt.QCursor.pos())

but this doesn't:

    def on_context_menu(self):
        if not self.context_menu:
            self.context_menu = Qt.QMenu()
            self.explorer_action = Qt.QAction('Show in Explorer')

            def open_in_explorer():
                subprocess.Popen(['explorer', '/select,', str(self.path_object.absolute())])

            self.explorer_action.triggered.connect(open_in_explorer)
            self.context_menu.addAction(self.explorer_action)

        self.context_menu.popup(Qt.QCursor.pos())

anyone have any idea why?

[sand void]

Why does the placement of the .addStretch() method matter in adjusting the window size?

Why do I have to .addStretch, then add widget to UI and then .addStretch() again?(lines 15-18)
https://pastebin.com/GN1xGqzk

[twin warren]

@sand void Have you tried removing the first one and finding the result?
I would assume that you adding the widget to the layout is causing you to have to stretch it twice.

[orchid prawn]

Hi, so what would be best practice to make parser for command line cisco, junos style ?

for start I used shlex and do some manual parsing regarding position and similar...

[hoary panther]

Does anyone know how to get a Material style background color for a frame using qt quick? Ive got a Rectangle as background but idk how to get the material color applied to it

[desert sapphire]

https://doc.qt.io/qt-5.11/qtquickcontrols2-material.html here they set the Material.background value to do that

[limber zenith]

@hoary panther also interested, please tag me when you get the answer

@desert sapphire oh, great

[hoary panther]

Okay so for some reason I was not able to set the background color when I was using a Pane, in the end I ended up setting a Pane as the Background from the frame

I would still like to know if there is any way to set the color of a rectangle to a material color tho

[red furnace]

Hello! I am a lost on how to do what I want to do, make a Python app somewhat like reddit including:
-Crossplataform
-Nice interface
-P2P connections

So after long research I think using Electron would be the way to go, but I am not sure since after seeing this: https://www.fyears.org/2017/02/electron-as-gui-of-python-apps-updated.html I don't know if using zerorpc (Since it uses host-client communication) it will conflict the communications between different users.

Thank you in advance!

[swift merlin]

you need to start over with a p2p tech demo before you do anything else

write a regular python console app that can connect to your p2p network and send messages

the ui, crossplatform etc wont matter until then

i would look into existing open source decentralized social media things like gnu social, federated will likely be much easier than true p2p and give you most of what you want

[red furnace]

@swift merlin Thanks for the tips, I guess the main code will be what it will need to be independently of whether it is crossplatform or not? I am not sure if GNU Social would be good enough, It i want it to be resistant to censorship, anonymous, and with no single point of failure

[swift merlin]

yeah the main code will be the same as long as you are using python so you should get that working first. there are several protocols like that but If you really dont like federated you will have to look at stuff like freenet, which has no real servers at all. its a huge pain to build up a network on a system like this. who are your peers? where do you find them? does everyone need to learn to open ports? what if my ip changes? etc @red furnace

you almost certainly dont want to be like freenet which is like a distributed hash table, but i know they have to solve the problem of 'who are my peers'

i think modern bitttorent also has a way to do this

but iirc they all have a basic starting seed of peers

and that means you are getting close to being federated anyway since you have to trust those first peers

here by federated i mean "a main server that users log in to but that anyone can run and connects to other servers'

that way your peers are people on your server and ones its connected to

but you can make your own if you want

[red furnace]

I am (Hope fully) aware of the problem and pain it is to make it. I have been thinking of ways to solve it, my thoughts on this are: Direct Connections, and Broadcast. To discover peers, the IP changes would be "announced" to other peers

Direct Connections in the way, that since this would be a social net of sorts you could possibly have friends to invite you, joining "his" net, while his net could potentially be merged into other nets

I want to create something like https://peerdium.com, but with comments, subs, and reactions like Reddit

Whilst being 100% P2P so it would be incensurable

@swift merlin

[swift merlin]

how do you plan to establish trust in those updates? if you have no authority for a user other than themself youll have to make it all based on pub key crypto, like i am the same user because i signed it with the same key. but if you do that wont the network be susceptible to broadcast floods?

and ofc you still need your initial seed of peers since you cant do actual broadcasts over the internet

which will have to be pretty hefty since every single user will connect to them at least once

the direct connects becomes federation, and people would almost certainly just choose a trusted friend and all connect through his

at least once

imo

but you also run in to the issue with no censorship, that also means no antispam

freenet has a chat system and they tried to make it censorship free, but it got spammed to hell and since its also anonymous there is nothing they can do about it

they tried stuff like forcing you to post proof that you solved captchas etc but it ended up just annoying regular users

[swift merlin]

oh if you want to chat more about this we should prob swap over to a diff channel

[limber zenith]

@red furnace So let me get this straight

You're using neo-nazi imaginery in your avatar and arguebly in your name

https://en.wikipedia.org/wiki/Black_Sun_(symbol)

And you want to make a censorship-resistant platform

[proper glade]

can someone with pyqt5 help me test something?

import PyQt5.Qt as Qt

class MusicPlayerWidget(Qt.QWidget):
    def __init__(self):
        super().__init__()

        self.media_player = Qt.QMediaPlayer()
        self.media_player_playlist = Qt.QMediaPlaylist()
        self.media_player.setPlaylist(self.media_player_playlist)

        self.play_pause_button = None
        self.stop_button = None
        self.loop_button = None

        self.seek_bar = None
        self.volume_slider = None

        self.cache = {}


    def play_url(self, path):
        buffered_data = self.cache.get(path)
        if not buffered_data:
            with open(path, 'rb') as file:
                buffered_data.setData(file.read())
            self.cache[path] = buffered_data

        buffered_data.open(Qt.QIODevice.ReadOnly)
        buffered_data.seek(0)

        url: Qt.QUrl = Qt.QUrl()
        url.setScheme('file')
        url.setPath(path)
        self.media_player.setMedia(Qt.QMediaContent(url), buffered_data)
        self.media_player.play()

if __name__ == '__main__':

    app = Qt.QApplication([])

    url = r'T:\__SORTED\__KITS\20-Wavy_Neon\20-Wavy_Neon\lp_110_am_c_guitar_chord_delay.wav'
    music_widget = MusicPlayerWidget()

    button = Qt.QPushButton()
    button.clicked.connect(lambda: music_widget.play_url(url))

    window = Qt.QWidget()
    window.setLayout(Qt.QVBoxLayout())
    window.layout().addWidget(button)
    window.show()

    app.exec()

replace the url variable under if __name__ == '__main__': with a path to an audio file somewhere on disk

and then run the script and click the button

on my pc it just freezes

[red furnace]

@swift merlin I have thought on this problems, the updates on posts (If that is what you meant with updates) would be much like freenet works IIRC, the way of seeding the posts would be with something like faving a post, (Since you faved it you support it seeding the post), the net mapping I understand might be an issue, (The central server could be used for bootstrapping but in any case it wouldn't be much different from a direct connect to a "friend", what i mean by this is, anyone could publish their direct connection link and join "his" net)

Regarding anticensorship and spam, I have thought on this, and my solution is: Direct Block, and Black Lists. The Direct Block blocks any and all communication with that user, bydirectionally, and blacklists would be community created, anyone could (Using a built-in function) create a black list, name it, and describe it; like Spammer BlackList by Marques (I have collected this users which have been spammers), you could adhere to such blacklist and the app would block all users for you. To prevent spammers creating multiple accounts my intention is that you only have one user linked directly to your device.

@limber zenith The black sun yes, but my nickname has nothing to do with that or anything similar.
I have a strong belief that making something like this is essential for our societies, liberties and destiny.
Free speech is what i look for, free speech to be able to share my political views, be them communists or fascists, or whatever. I really think that the standard way of social networks, like facebook, or twitter are toxic, hiding "incorrect political views" doesn't change the fact that those views exist, and the impotence it creates is dangerous. I really wish we could all share everything and anything freely, and if anyone is too unconfortable sharing this common space with others they can block them/selves from them, but no one could be banned for this, and thus censored.

[haughty birch]

That’s nice. You’ll want to change your avatar to continue using this server. This isn’t a safe space for Nazis

[limber zenith]

@red furnace give me a break

@red furnace and yes, you could be banned according to the TOS. You very well know that half your groups and users are banned

[red furnace]

Sorry but reading the rules didn't see anything relating avatars, what did I miss?

@haughty birch @limber zenith

[limber zenith]

Discord TOS

[haughty birch]

And rule 3 of this server

[red furnace]

@haughty birch 3: Don't intentionally make other people uncomfortable - if someone asks you to stop discussing something, you should stop ?

[haughty birch]

This isn’t a discussion

[red furnace]

Yeah thats why I was asking

Which 3 rule

[haughty birch]

Last chance to change your avatar

[red furnace]

I comply

Give me a sec

There

Could you please tell me which rule 3 I was breaking now?

[haughty birch]

I would advise you to keep your commentary strictly related to Python

[limber zenith]

@red furnace let's go to a help channel

[digital rose]

come someone hep me add up and down to this script

import pygame

pygame.init()
screen = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Paddle Movement')


PADDLE_WIDTH = 50
PADDLE_HEIGHT = 10
paddleSpeedX = 0
p1Paddle = pygame.Rect(10, 430, PADDLE_WIDTH, PADDLE_HEIGHT)
PADDLE_COLOR = pygame.color.Color("red")

# clock object that will be used to make the game
# have the same speed on all machines regardless
# of the actual machine speed.
clock = pygame.time.Clock()

while True:
    # limit the demo to 50 frames per second
    clock.tick( 50 );

    # clear screen with black color
    screen.fill( (0,0,0) )

    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
            pygame.display.update()

    keys = pygame.key.get_pressed()
    if keys[K_LEFT]:
        p1Paddle.left = p1Paddle.left + paddleSpeedX - 5

    if keys[K_RIGHT]:
        p1Paddle.left = p1Paddle.left + paddleSpeedX + 5

    # draw the paddle
    screen.fill( PADDLE_COLOR, p1Paddle );

    pygame.display.update()

[tight bear]

Is left and right working?

Or are you getting an error when running the code?

[kindred iris]

@digital rose

[tight bear]

He moved to a help channel.

[kindred iris]

got it, sorry

[half vapor]

In tkinter, how can I make something that looks like an entry box, that takes a hotkey when you click on it (eg: 'Ctrl + Alt + X')

[supple kayak]

someone help me in #help-coconut

:(

[proper glade]

@half vapor

http://effbot.org/tkinterbook/tkinter-events-and-bindings.htm

scroll down to 'capturing keyboard events'

basically what you gotta do is call .bind for your entry box to bind a key event to a callback

[proper glade]

im still having some strange issues with connecting pyqt signals to bound methods.

in some cases it just completely crashes

no errors at all

if i replace the bound method with a local method that does the same thing it works though

i.e. ```python
def init(self):
super().init()

    self.test_signal.connect(self.test_callback)

vs ```python
def init(self):
super().init()

    def test_callback():
            pass

    self.test_signal.connect(test_callback)

first one causes a crash, second one works

but not for all signals. it just happens for random ones.

idk what the common factor is

[mighty frigate]

@proper glade is the class of the sender and receiver QObject ? did you declare the signal ? did you decorate the slot func ?

@proper glade here's an example for custom signals/slots: (PyQt5)

class TestWidget(QWidget):

    test_signal = pyqtSignal()

    def __init__(self):
        super().__init__()
        self.test_signal.connect(self.test_callback)

    @pyqtSlot()
    def test_callback(self):
        print("here")

if __name__ == "__main__":
    app = QApplication(sys.argv)

    widget = TestWidget()
    for i in range(10):
        widget.test_signal.emit()
        
    app.exec_()

[proper glade]

@mighty frigate they're all qwidget, which if im not mistaken are derived from qobject

as for declaring the signals, it has happens for some declared ones, but also some built in ones. for example, a QAction's triggered signal

i havent found that decorating the slots solves the problem, in the case of the built-in signals.

the weird thing is, it works for one qaction's triggered being connected to a bound method and then crashes for another one

the behaviour just seems kind of arbitrary

[mighty frigate]

@proper glade can you give some minimal code so I can take look ?

[proper glade]

sure, ill try to distill it down to a couple examples

[proper glade]

@mighty frigate in trying to breakdown the code into examples i think i found the issue and solved it

i had a class that QTreeWidgetItem class whose signature was this:

class CustomTreeWidgetItem(QTreeWidgetItem, QObject):

i think i'd added the QObject for testing .connect for some signals or something

either way I took it out and everything seems to work ok now

😅

[mighty frigate]

@proper glade which is a bit weird since QTreeWidgetItem is not a QObject

[proper glade]

basically i have a QAction whose triggered signal im connecting to a QTreeWidgetItem bound method

[mighty frigate]

that I created yourself I suppose

[proper glade]

yep

[mighty frigate]

usually - in c++ at least - one would connect to the QTreeWidget, retrieve the wanted QTreeWidgetItem and do things on it there

but if it's working, it's all good

[proper glade]

class FileTreeWidgetItem(Qt.QTreeWidgetItem):
# ...

    def show_in_explorer(self):
        subprocess.Popen(['explorer', '/select,', str(self.path_object.absolute())])

# ...

    def on_context_menu(self):
        context_menu = ContextMenu()
        context_menu.add_action('Show in Explorer', self.show_in_explorer)
        context_menu.add_action('Expand All', self.expand_all)
        context_menu.show()

and this is ContextMenu:

from PyQt5.Qt import QMenu, QAction, QCursor, QPoint

open_context_menu = None

class ContextMenu:
    def __init__(self):
        global open_context_menu
        self.menu = QMenu()
        self.actions = []
        open_context_menu = self

    def add_action(self, name, callback):
        action = QAction()
        action.setText(name)
        action.triggered.connect(callback)
        self.menu.addAction(action)
        self.actions.append(action)

    def show(self, point: QPoint = None):
        point = point or QCursor.pos()
        self.menu.popup(point)

QTreeWidget calls on_context_menu for the item when it's received

that's done manually, no signals

[mighty frigate]

ooh !

[proper glade]

oh and the code in ContextMenu was all handled inside FileTreeWidgetItem before. The refactoring happened just now after I fixed the issue.

[mighty frigate]

and youre connecting a QMenu to a QAction

and both are QObject

that's why

[proper glade]

'fixed' even though i have no idea why it happened 😅

am i??

[mighty frigate]

no you're right

I don't understand, but it's working 😄

[proper glade]

me neither

[mighty frigate]

mb some PyQt black magic

[proper glade]

QObject + multiple inheritance is a dumb idea. lesson learned. 😃

[mighty frigate]

also the slots are not decorated

[proper glade]

didnt make a difference when they were

[mighty frigate]

I need to take a look to all this

[proper glade]

in pyqt you dont have to decorate them unless you have your own custom slots and want to send objects through the signal i think

[mighty frigate]

for now I don't get howw it is working

[proper glade]

or maybe it was across threads.

[mighty frigate]

yeah maybe

[proper glade]

https://stackoverflow.com/a/40330912/10444096

[mighty frigate]

thanks

I wanted to ask you, the PyQt import line

it's the first time I saw it like this, does it allow you to import stuff without specifying the actual lib ?

because I was stuck with things like
from PyQt.QtCore import (things, other_things)

[proper glade]

yeah, i think it's an amalgamation of all of them

[mighty frigate]

soooo nice

[proper glade]

haven't encountered anything that couldnt be imported through PyQt5.Qt yet

[mighty frigate]

it was getting so old so fast to import things like this

[proper glade]

though you do get the awkward Qt.Qt.something now and then to access Qt class' constants

[mighty frigate]

ah :/

[proper glade]

other than that, smooth sailing

[mighty frigate]

nice

[proper glade]

Qt class is literally just this:

class Qt(__sip.simplewrapper):
    # no doc
    def __init__(self, *args, **kwargs): # real signature unknown
        pass

    __weakref__ = property(lambda self: object(), lambda self, v: None, lambda self: None)  # default
    """list of weak references to the object (if defined)"""


    AA_CompressHighFrequencyEvents = 25
    AA_CompressTabletEvents = 29
    AA_DisableHighDpiScaling = 21
    AA_DisableShaderDiskCache = 27
    AA_DisableWindowContextHelpButton = 30
    AA_DontCheckOpenGLContextThreadAffinity = 26
    AA_DontCreateNativeWidgetSiblings = 4
    AA_DontShowIconsInMenus = 2
    AA_DontShowShortcutsInContextMenus = 28
    AA_DontUseNativeDialogs = 23
    AA_DontUseNativeMenuBar = 6
    AA_EnableHighDpiScaling = 20
    AA_ForceRasterWidgets = 14
    AA_ImmediateWidgetCreation = 0
    AA_MacDontSwapCtrlAndMeta = 7
    AA_MacPluginApplication = 5
# ...

constants til the end of the page

would be nice if they renamed it to Constants instead

[mighty frigate]

maybe one could trick the thing a bit, like QtCon = Qt.Qt or something

[proper glade]

ooh good idea. a simple monkey patch

[mighty frigate]

y

[proper glade]

well according to pycharm...

all the modules get imported through Qt.pyd

and since you cant really edit the pyd directly the best you can do is edit this stub file

either that or having to add QtCon = Qt.Qt at the top of every file you want to use Qt.Qt in

[mighty frigate]

sorry I don't know python very well, I'm kind of new :/ what's pycharm

[proper glade]

(imo best) python ide

[mighty frigate]

oh alright

[proper glade]

it generates these stubs i think of code completion purposes

for*

not sure if the actual import PyQt5.Qt happens through the stub too

http://doc.qt.io/qt-5/qt.html

ah i see, it's a namespace. that expains the awkward translation to python

[young marten]

Hello, I'm trying to add a custom widget into a QStackedWidget, although it's not being shown when I'm in the stack

# The Custom Widget

times_font_18 = QFont('Times', 18)

class InstancesPage(QWidget):

    def __init__(self, parent):
        super().__init__(parent)
        self.setStyleSheet('color: white')
        self.initUI()

    def initUI(self):
        self.instanceLbl = QLabel('Available Instances')
        self.instanceLbl.setFont(times_font_18)
        self.show()

# Inside initUI method of Main Window

def initUI(self):
    self.stack = QStackedWidget(self)
    self.stack.setGeometry(widgetStackY,
                           widgetStackX,
                           widgetStackWidth,
                           widgetStackHeight)
    self.stack.setStyleSheet('')

    instancesPage = InstancesPage(self)
    self.stack.addWidget(instancesPage)

the other widget I added to the stack displays fine, so I don't know what the problem is, I couldn't find any good resources about creating custom widgets or any good resources/references for PyQt5 honestly, I did search before I asked though

[proper glade]

@young marten make sure you keep a reference to instancesPage alive

so self.instancesPage rather than just instancesPage

pyqt doesnt play well with python's scope rules all the time

[young marten]

Ah alright, I'll try that, thanks

[proper glade]

unfortunately it's not a consistent behaviour which sucks

some functions like setLayout will keep the QLayout alive without an additional reference

other stuff doesnt

it's a matter of trial and error to find out which ones

and if keeping a reference doesn't solve it then at least you can cross that possibility off the list 😛

oh @young marten taking another look at your code

just noticed, you're not adding the child labels to the widget itself

for qwidgets you have to set a layout first, then add widgets to the layout

class CustomWidget(QWidget):
    def __init__(self, parent):
        super().__init__(parent)
        
        layout = QVBoxLayout()
        self.setLayout(layout)
        layout.addWidget(some_widget)

http://doc.qt.io/qt-5/layout.html#qt-s-layout-classes

list of different layout classes here

[young marten]

Oh so all widgets use layouts, but in the main window I don't have to? I just use setGeometry for my buttons and stuff

[proper glade]

they serve two different functions

setGeometry sets the size/position of a widget, layouts describe how child widgets should be arranged

[young marten]

Ah alright, at the moment I have this window, the red box is the stackedwidget, and the buttons on the left, red and blue, switch between pages, I guess I will want to use a layout in the custom widget since I will be generating arbitrary number of widgets I want to add to it

[proper glade]

right right

[young marten]

If there is a better way to achieve what I'm trying I'd love to know lol, but my searches and scarce examples got me here

[proper glade]

not that im aware of

[young marten]

It worked, thanks dude

[proper glade]

👍

[young marten]

nice avatar too aha

[proper glade]

thanks i spent a gruelling 10 secodns in ms paint creating this masterpiece

[young marten]

[young marten]

Heyy, I'm back for something more complex than I can do/understand about widgets at the moment

I want to create a widget to sort of mimic the user profile with a circular image, status indicator, and a second half where I can just have some information, I have no clue how to create a widget like this though, thanks for any references/help in advance

[proper glade]

looks like what you might want for the circular image https://stackoverflow.com/a/12734881

the other stuff can be done easily enough with a bunch of widgets inside widgets

you can set the height of the top area to a fixed value and let the bottom part stretch out

using QWidget setFixedHeight

@young marten

[young marten]

Cheers, I'll try some stuff out

[mighty frigate]

you could also work with the border-radius prop using qss I believe