14,809 questions
0
votes
0
answers
18
views
How to get rid of blank space around a QLabel in a QVBoxLayout() in PyQt5
I have a simple window that has a QLabel as a header and a QFrame that contains some input boxes.
I tried to make a layout for them, but I noticed that the QFrame always aligns to the bottom even when ...
- 1
-1
votes
0
answers
22
views
Widget now showing after .deleteLater on run time
I have an application where I create a QHBoxLayout with some widgets. They are displaying correctly. However, on run time I need to replace some of the widget that that portion is not working. If I ...
0
votes
0
answers
43
views
Login Button in Qt Designer [closed]
I created a login interface in Qt Designer and when I converted it to Python code and ran it, everything looked just fine up until I clicked the log-in button and that was when the program just ended ...
-1
votes
0
answers
38
views
PyQtGraph ImageView: ViewBoxes are Linked, How to Separate Them? [closed]
I am building a DICOM viewer using pyqtgraph.ImageView, but I'm facing an issue where all the views seem to share the same ViewBox.
I can display different images in each ImageView, but when I set the ...
0
votes
1
answer
46
views
qtodotxt / PyQt5 dumps core
Running the test.sh script below dumps core on various pcs running both fedora 40 and 41:
test.sh: (beware it destroys your ./tmp and your pip cache)
cat /etc/os-release
python --version
which python
...
- 118
0
votes
0
answers
21
views
"ERPNext Print/Preview Functionality Not Working in PyQt5 Desktop Application Integration"
I am integrating an ERPNext application (built on the Frappe framework) with a PyQt5-based desktop application. I can able to use erpnext application through pyqt5 windows now, everything is working ...
0
votes
0
answers
27
views
Can I use pyqtgraph to plot live serial data stream?
I'm trying to plot 10-100Hz datas coming from a distance meter sensor over a USB/serial interface on a raspberry.
I can read datas like this:
value = ser.readline().decode('utf-8')
data = value.split(&...
2
votes
1
answer
70
views
Placing label next to a slider handle
I want a label near the slider's handle, that displays the current value. I used the code provided on the forum and tried to adapt it to Python
from PyQt5 import QtCore, QtGui, QtWidgets
class test(...
- 51
0
votes
0
answers
38
views
Transparency in PyQt widgets & VTK
I have a few widgets such as a QLabel and QPushbuttons hovering over a VTK scene like below. As you can see, when I add a border-radius to the them, the remaining area around the labels or buttons is ...
0
votes
1
answer
54
views
How can I convert my python ( .py) file into an executable (.exe) file using pyinstaller?
I am working on a PySide6 application that consists of multiple Python files and folders. When I run the project using python main.py, everything works perfectly. However, I’m struggling to convert it ...
0
votes
0
answers
29
views
Why is my QPainterPath border not visible on the right and bottom of my window? [duplicate]
I am trying to build a custom shaped translucent QWidget using a QPainterPath which draws the shape using QBrush. When I draw the shape as a border (1.0 px), only the left and top edge shows up.
I am ...
- 49
2
votes
0
answers
41
views
Folium map displayed with PyQT5 flashes at every update
I am designing a map visualizer with PyQT5 and using folium. I created something but there are a few problems I couldn't solve. In this question I am only focusing on one of them and I will ask others ...
0
votes
1
answer
30
views
Unable to get PYQT5 headless print HTML to PDF work as Azure function App with Linux App service plan
I have a code something like below to print HTML as PDF using PyQt5 library. This code works fine when tested via VS code function core tools however when it is deployed as azure function app I get an ...
- 1
0
votes
0
answers
31
views
Drawing polygons using pyqt5
I am trying to create a program that allows users to draw different types of shapes by drawing simple lines using Pyqt5.
The program must detect if a shape is closed and then automatically fill the ...
- 13
0
votes
0
answers
30
views
"Unhandled exception in Script" on PyQt5 exe file
I've been trying to create an exe file through pyinstaller for my PyQt5 program. However, even after the exe file was create, everytime I tried to run it it gave me this error:
Failed to execute ...
1
vote
1
answer
33
views
PyQt WebEngine custom scheme crash
I am currently trying to implement a custom url scheme using an in-app browser made with PyQtWebEngine. The problem I am facing is that the whole app crashes right after loading the custom scheme url. ...
- 52
1
vote
0
answers
29
views
QThread msleep() vs. QTimer in PyQt5: Key Differences, Best Practices, and Use Cases [duplicate]
I am working on a PyQt5 application where I need to perform periodic tasks. I've come across two primary approaches:
Using time.sleep() or QThread.msleep() in a subclass of QThread.
Using QTimer.
...
1
vote
0
answers
24
views
How do I connect to inherited signals in PyQt? [duplicate]
I have a PyQt application where I need to connect signals inherited from a parent class in a few child classes.
Let's say my BaseClass defines two signals a and b:
class BaseClass(QObject):
...
- 195
1
vote
2
answers
48
views
Open file from QFileDialog in native file explorer via right-click in PyQt5?
In Firefox, if I download a file, there is a folder icon "Show in Folder":
... which when clicked, opens the native OS file explorer in the Downloads directory, with the target download ...
- 5,364
1
vote
1
answer
36
views
Drag Items from QListWidget and drop it to the QTableWidget in pyQT
I have a QListWidget and a QTableWidget in my main window. I need to drag an element from the QListWidget and place it in the QTableWidget as a row or column (depends on whether the event will be ...
- 11
0
votes
1
answer
44
views
Changing background color of inidividiual row (verticalHeader) labels in PyQt5 QTableView?
In my application, I would like to conditionally change the text and background color of arbitrary row labels (verticalHeader) of QTableView.
In the example below, to simplify things, all I'm trying ...
- 5,364
0
votes
0
answers
32
views
How to indent expandable row data in QTreeView, PyQt5 [duplicate]
This is a small example of my TableWidget:
from PyQt5.QtGui import QStandardItem, QStandardItemModel, QIcon
from PyQt5.QtWidgets import QVBoxLayout, QWidget, QStyledItemDelegate, QStyle, QTreeView, ...
- 25
1
vote
0
answers
36
views
MySQL causing the PyQT5 to quit suddenly
I started coding a data repository in Python. I have to use MySQL connector. There is an issue that's causing me headaches and I have to get the project read. I have coded the user interface in PyQT5 ...
- 110
0
votes
0
answers
22
views
Updating actor's scalar range of ImageData in PyVista - does not update
I am writing a GUI with PyQt5 integrating a PyVista scene to display a 3D volumetric image and its sections, specifically Magnetic Resonance Imaging data. My GUI lets the user select the colormap ...
- 1
0
votes
1
answer
30
views
Moving Items in QGraphicsScene with Collisions
I am trying to move multiple or single selected item(a rectangle) in a QGraphicsView with collision detection, so that they don't move through each other but snap to either end without blocking ...
-1
votes
1
answer
46
views
in pyqt5 I want to create Splash Screen in my WhatsApp Ui project but there is two window created how to solve it
I want to create a splash screen on my fluent Ui, but in this Ui window the title bar's button is there. I don't want this. I am beginner so help me please . I try to fix this code but I failed so ...
- 19
0
votes
0
answers
57
views
QtWebEngineView not working after compiling with nuitka in Python
Took some of the code from my launcher. I display the window with the site through PySide2 and QWebEngineView. Everything works fine with Python IDLE. When I compile with nuitka, the code crashes. If ...
- 1
0
votes
0
answers
21
views
In PyQT 5, always show a QCombobox using QStyledItemDelegate in QTableView (Not just when a cell is being edited)
I'm subclassing QStyledItemDelegate to show a dropdown QCombobox in a QTableView. The delegate detects the dataType from the table's model, and if the dataType == EnumMeta, shows a dropdown list of ...
- 317
1
vote
0
answers
32
views
Creating a 'Draw Line' Button with Mouse Clicks in PyQt5
I'm using PyQt5 to build a GUI program similar to Microsoft Paint, but specifically for drawing shapes (components) and lines (wires) on an adjustable circuit board. So far, I've created the circuit ...
- 111
1
vote
0
answers
33
views
Qt: how to calculate image coordinates on label? [duplicate]
I am writing an app, that displays an image and allows the User to interact with the image using mouse. The image size is predefined, and in the code below it is 2000x2000. Since the window size may ...
0
votes
1
answer
50
views
ui files made with qt creator have invalid syntax for qgis
I made a UI in QT Creator that only has QDialogButtonBox:
When I save it out, the .ui file looks like:
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0"&...
- 1,789
0
votes
0
answers
34
views
Stack Overflow Error (0xC0000409) in Python Drawing App with Pressure Sensitive Stylus [duplicate]
I'm developing a drawing app in Python, and everything works smoothly with mouse input. However, when I use a pressure-sensitive stylus, the application crashes after a short period with the following ...
- 23
0
votes
1
answer
41
views
Getting the size of an item (QStyledItemDelegate?) in a QTableView in PyQt5?
In the example below (at end of the post), what I want to do, is to
have an image applied to a QTableView item (cell) if it has empty contents (as a DecorationRole, since I might have other logic ...
- 5,364
0
votes
0
answers
56
views
Bokeh s.replaceAll
I am trying to create a PyQt5 app with a Bokeh plot in a QtWebEngineWidget.
While doing so I get an Error:
js: Uncaught (in promise) TypeError: s.replaceAll is not a function
For a proof of concept I ...
- 1
1
vote
0
answers
23
views
data from database- sqlite table not displayed in python pyqt5 [duplicate]
i am using python and sqlite3 with pyqt5, i designed form in pypt5 designer converting it to py xml file and connecting to sqlite database table called "teacher" , i fed in the data in the ...
- 21
0
votes
1
answer
42
views
Creating a custom diagonal line QBrush tiled pattern in PyQt5?
So, at first I wanted to use a gradient background to emphasize certain cells / items in my QTableView, but as it can be seen in Stretchable QLinearGradient as BackgroundRole for resizeable QTableView ...
- 5,364
0
votes
1
answer
65
views
Stretchable QLinearGradient as BackgroundRole for resizeable QTableView cells in PyQt5?
Consider this example, where I want to apply a "vertical" background to all cells in the third column of the table:
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore ...
- 5,364
0
votes
1
answer
35
views
My button's color seems transparent in QtDesigner but why?
I'm using QTDesigner 5.15.8 and trying to color buttons.
I have inserted one button and frame on my mainwindow.
Here is the stylesheet code of mainwindow
QPushButton{
background-color: red;
}
QFrame{
...
1
vote
0
answers
59
views
Problem with undefined symbol in QT6 in Archlinux
I installed anki with AUR package in this link: https://aur.archlinux.org/anki.git
But after install I see that's application is not launching,
I'm stuck how to resolve that "undefined symbol&...
- 11
0
votes
1
answer
23
views
Debounced Completer autoselects highlighted option when I stop arrowing through results?
I'm trying to create a debounced Typeahead widget that populates with data from my database. When I try to down arrow through the query results, the highlighted result autoselects when I stop pressing ...
- 359
1
vote
0
answers
36
views
Pyqtgraph Flask threading issue
I would like to ask whether it is possible to use Pyqtgraph in flask for plotting graphs.
My simplified code:
pg_layout = pg.GraphicsLayoutWidget(
title=title,
size=(2880, 960)
)
...
- 11
1
vote
0
answers
42
views
click a drop-down button without making its status tip disappear
A dialog has several widgets including a qpushbutton with a dropdown menu. A statustip appears when you hover over the button (I use an enterEvent() because the button is enabled only under certain ...
- 11
0
votes
1
answer
35
views
Why are the plotly graphs inside the QWebEngineViewn not synched?
I based the code on from the answer in this problem text
but when i put it on a QWebEngineView from PyQt5 it doesn't synch or do anything when i pan or zoom
Python Code:
import sys
from PyQt5....
0
votes
0
answers
45
views
Setup a javascript file .js with QWebEngineView in python
I have some trouble laoding a .js file into an HTML using QWebEngineView.
this the python:
the class WebEngine_PythonTerminal() is QWebEnginePage with python console.
the function LoadCSS is used to ...
0
votes
1
answer
52
views
Detach tabs with PyQt5 - keeping all widgets into the detached tabs
With a PyQt application, I wanted to deliver detachable tabs where user can by a double click detach a tab and reattach it to the main window by closing the detached tab.
I have minimize the problem ...
- 429
1
vote
1
answer
52
views
Command Failed: Is a directory
Trying to run PyQtDesigner through VSC and failed.
I was trying to use PyQt Designer through VSC's PyqT Integrator and sent the QTDesigner path as such:
/Users/atillayildirim/opt/anaconda3/pkgs/qt-...
4
votes
2
answers
107
views
How to set a QWidget hidden when mouse hovering and reappear when mouse leaving?
I am trying to create a small widget to display information. This widget is intended to be always on top, and set hidden when the mouse hovers over it so you can click or see whatever is underneath it ...
- 43
2
votes
0
answers
32
views
Unable to Capture Multiple Screens using PyQt5 Python
I'm trying to make a realtime data logger where I can select a portion of my screen using snipping tool kinda action and my code will log the changing values in that pixel range over time.
So far I ...
0
votes
1
answer
52
views
Problems with PyQt5
I try to change my Sankey Diagram Generator GUI from Tkinter to PyQt5. I try to go by documentation and bit of experimentation but can't find why some things are happening.
The code is divided into ...
1
vote
2
answers
95
views
How to draw a rectangle at (x,y) in a PyQt GraphicsView?
I'm learning Python and Qt, and as an exercise I designed a simple window in QT Designer with a QGraphicsView which would represent a stack data structure. It should hold the items on the stack as a ...
- 62