Qt for Python

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  UNSOLVED python3/Qt5/gnuplot
  • erg_erg  

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  UNSOLVED Cache QImage
  • krzysieklfc  

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  @krzysieklfc said in Cache QImage:

  @Kent-Dorfman I totally missed the concept that QImage references the buffer, not copies it. I included it in my dictionary and now it works. Thank you.

  Well yeah, reuse of the buffer ist verboten. Gotta make a copy. Glad you figured it out

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  UNSOLVED Place Image in PyQt QTableWidget Header
  • luke.whitehorn  

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  Anyone have any clues at all?
  As you can see from my Stack Exchange question here a user showed that he managed to do it, but then he disappeared.

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  UNSOLVED PySide2- Clicked signal of QPushButton doesn't appear
  python qt for python pyside2 • • Aruto  

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  UNSOLVED PySide2 Build from Source Windows 10
  • james0807  

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  Better use Anaconda and install PySide2 with conda.

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  This topic is deleted!
  • Alfalfa  

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  UNSOLVED QThread create in PyQt5
  • VijayalakshmiSundaravaradhan  

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  #!/usr/bin/python3 # Threading example with QThread and moveToThread (PyQt5) import sys import time from PyQt5 import QtWidgets, QtCore class WorkerThread(QtCore.QObject): signalExample = QtCore.pyqtSignal(str, int) def __init__(self): super().__init__() @QtCore.pyqtSlot() def run(self): while True: # Long running task ... self.signalExample.emit("leet", 1337) time.sleep(5) class Main(QtWidgets.QMainWindow): def __init__(self): super().__init__() self.worker = WorkerThread() self.workerThread = QtCore.QThread() self.workerThread.started.connect(self.worker.run) # Init worker run() at startup (optional) self.worker.signalExample.connect(self.signalExample) # Connect your signals/slots self.worker.moveToThread(self.workerThread) # Move the Worker object to the Thread object self.workerThread.start() def signalExample(self, text, number): print(text) print(number) if __name__== '__main__': app = QtWidgets.QApplication([]) gui = Main() sys.exit(app.exec_())
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  UNSOLVED Compile with icon.
  • priscilla v  

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  my approach to this very issue will be to create a python class that holds the binary data (as arrays) that makes up the icons, then feed that data to QPixmap, and then to QIcon instances.

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  UNSOLVED How to convert .py to .ui?
  • kingdelee  

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  I'm not aware of any tool to do that. UI is an XML description of the interface. PY is the processed output of that description. I'm not sure anyone has ever identified enough need to go the other direction.

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  UNSOLVED How to use QTermWidget in PySide2?
  • BEACON118  

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  Let's take it from the other end, why should the Qt project do it ?

  There's already a Qt based terminal that exists: Konsole from the KDE project.

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  SOLVED How to set the style (for instance Material) for QtQuick QML PySide2 app?
  • rafaldc  

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  Thanks, it works!

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  UNSOLVED Request for Comments - on my PyQt app
  • nshiell  

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  Tip: add the search/filter input :) to search through the logs.

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  UNSOLVED QtWebEnginePage.runJavaScript
  • Rolln  

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  Here is a basic example...
  When using QT, temp = None.
  When the same script is run using Selenium, temp = 5.

  import sys import time from PySide2 import QtCore, QtGui, QtWidgets from PySide2 import QtWebEngineWidgets from PySide2.QtWebEngineWidgets import QWebEngineView app = QtWidgets.QApplication(sys.argv) view = QtWebEngineWidgets.QWebEngineView() view.setUrl(QtCore.QUrl("https://google.com")) view.show() temp = view.page().runJavaScript('return 1+4') print(temp) import sys import time from selenium import webdriver browser_options = webdriver.FirefoxOptions() browser_options.add_argument('-headless') browser = webdriver.Firefox(firefox_options=browser_options) browser.get('https://google.com') temp = browser.execute_script('return 1+4') print(temp) browser.close() browser.quit()
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  UNSOLVED __init__ question
  • jimmyvegas29  

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  there are two ways to use forms:

  The first way is to run the setupUi() method on a target widget. The other way is to subclass the Ui_xxxx class itself. You're probably seeing examples of the second method where the subclass has its own init() method.

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  SOLVED QListWidget signal in pyside2 and attach a dictionary to listwidget
  • blossomsg  

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  Superb @Erudite-Monkey,
  This is what i was looking for

  I am working in a 3d package Maya
  the reference code i created was

  from PySide2 import QtWidgets from PySide2 import QtGui from PySide2 import QtCore test_lay = QtWidgets.QVBoxLayout() test_lay_wid = QtWidgets.QWidget() test_parentwid = QtWidgets.QWidget() test_button = QtWidgets.QPushButton() test_listwid = QtWidgets.QListWidget(test_parentwid) #QtWidgets.QListWidgetItem(testing_print.out_var, test_listwid) QtWidgets.QListWidgetItem("Test_01", test_listwid) QtWidgets.QListWidgetItem("Test_02", test_listwid) QtWidgets.QListWidgetItem("Test_03", test_listwid) test_lay.addWidget(test_parentwid) test_lay.addWidget(test_button) test_lay_wid.setLayout(test_lay) test_listwid.insertItem(10, QtWidgets.QListWidgetItem("Test_04")) test_lay_wid.show() def print_someting(): print str(test_listwid.currentItem().text()), "apna time aayega" #test_listwid.currentItem().text() test_listwid.itemClicked.connect(print_someting)

  which i figured out yesterday night :)
  I rarely have used lambda but with your eg i'll even learn something better

  when i select an item(key) from the listwidget it should display data(value) stored in it in texteditwid without any looping -- checked want to use only dict to display data on widget as per model/view want to know its possible, if yes will appreciate examples -- checked

  You nailed it man

  didn't even require the last point
  3) this query relates partially to the first one, if the dict option isn't handy enough kindly suggest provide an example of loop with itemselected signal because whenever i try i prompts Qt native signal

  Thank You, @Erudite-Monkey

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  SOLVED How to interact with widgets that are in cells of a tablewidget.
  • Erudite Monkey  

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  @mrjj Thankyou very very much for your help! I guess its time for me to get my hands dirty and do some more suffering experimentation :D

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  This topic is deleted!
  • tovikonioput  

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  UNSOLVED QMetaObject.invokeMethod() does not work with arguments
  • rweickelt  

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  UNSOLVED Python QT designer Updating Label and Other stuff in python code issue and error
  • scientist1995  

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  UNSOLVED How to create a String of character with PyQt (Plugin on modeling software)
  • Qtzo  

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  SOLVED PySide2.QtSql, How to load the available driver?
  • Volodymyr14  

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  @-KRS- Thank You, Solved! Didn`t use QtSql before. :)

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  UNSOLVED GIF smooth resize
  • PetPython  

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  UNSOLVED PySide2 licensing when using PyInstaller, cx_freeze
  • mame  

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  UNSOLVED PySide2/PyQt, zooming in and out UI.
  • VladStudent  

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  SOLVED For loop problem!
  • monamour  

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  @jsulm

  for proc in psutil.process_iter(): if proc.name()==x: proc.kill() QMessageBox.information(self, "Success", x2 +"has been terminated") return for proc in psutil.process_iter(): if proc.name()!=x: QMessageBox.information(self, "Error","The process " +x2 + " is not found") return
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  SOLVED Impossible to connect slots in TabWidget
  • AdamF42  

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  I found out the error and I feel so stupid. I used the same name (ui) for two variables in

  ClassifyPage = QWidget() ui = ClassifyPageUIClass() ui.setupUi(ClassifyPage)

  and

  MainWindow = QMainWindow() ui = MainWindowUIClass() ui.setupUi(MainWindow)

  so the the slots connects of my QTabWidget were overwrighted.

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  SOLVED Execute command and display it problem
  • monamour  

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  Solved!

  self.textBrowser.append("The PC is " +s.SystemName +" and the Speed is 1GB ")

  Thanks,

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  UNSOLVED using strings and floats in QTableView, QStandardItemModel, QStandardItem
  qt for python • • consumererik  

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  UNSOLVED Overwritemode don't work in QTextEdit / QTextBrowser
  • seediq  

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  SOLVED QCoreApplication: How to Exit non-GUI application
  • crankin360  

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  @crankin360 Try instead:

  QtCore.QCoreApplication.quit()

  this line:

  sys.exit()
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  UNSOLVED QTableView - where to get model?
  • sequence  

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  Use

  data = TableData() table.setModel(data)

  where data derives from QAbstractTableModel e.g.

  class TableData(QAbstractTableModel): def __init__(self, parent: QObject = None): super().__init__(parent) # The number of rows to display def rowCount(self, parent: QModelIndex = QModelIndex()): return 3 # The number of columns to display def columnCount(self, parent: QModelIndex = QModelIndex()): return 3 # Return the data you want to display in the table (could be stored e.g. in a list of tuples) def data(self, index: QModelIndex, role: int = Qt.DisplayRole) -> object: if role == Qt.DisplayRole: return index.row() * 10 + index.column() return None
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  UNSOLVED QWebEnginePage - how to get html source code
  • womz  

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  UNSOLVED PySide2 default Icons ?
  • Volodymyr14  

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  UNSOLVED How to add logo
  • priscilla v  

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  @priscilla-v You need to find the folder with PyQt application, then find the file with main application (you_qt_app.py), In this file find the class which realizes the application window and usually in the init function of this class add something like this:

  self.setWindowIcon(QtGui.QIcon("Path/To/logo.png"))

  or if

  window = QtGui.QWidget() window.setWindowIcon(QtGui.QIcon("Path/To/logo.png"))

  with buttons, labels, other elements, they are usually in the init function of the application/widget class

  self.some_button.setIcon(QtGui.QIcon("Path/To/logo.png"))

  or

  some_button.setIcon(QtGui.QIcon("Path/To/logo.png"))

  the names of the buttons (any elements) can be any.
  Usually, buttons have a declaration:

  self.some_but = QtGui.PushButton()

  but it will not necessarily be like this.
  Need to read by the content in the app files.
  The images is recommended to place in the one folder with app. For example, if app path App/app.py can create in the App folder Icons folder and put to Icons folder logo.png file.
  The path will be:

  self.setWindowIcon(QtGui.QIcon("Icons/logo.png"))

  You can put here some part of the file with the application if You have a problems with code.

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  This topic is deleted!
  • priscilla v  

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  UNSOLVED PySide2 seems a bit slow
  qt for python pyside2 • • METLAB  

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  UNSOLVED PySide2 on Linux 32-bit ARM system
  • VijayalakshmiSundaravaradhan  

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  I have the same problem with Ubuntu16.04 on a arm64 64-bit . Now I use docker container with Ubuntu18 as base image.

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  UNSOLVED Stock Chart view
  • immmomm  

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  @immmomm See https://qwt.sourceforge.io/

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  UNSOLVED PySide2 QtWayland
  • Earendil  

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  UNSOLVED QAbstractListmodel / ListView manual positioning
  • dadara  

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