Qt for Python

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  Unsolved Code generation failed
  • supriyo414

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  smells like a pyqt installation problem. Did you install it from a prepared package, or build from source?

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  Unsolved How can I get a semi-transparent 3DScatter?
  • Razors

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  Unsolved change target pyqt version without recompile
  • Kent-Dorfman

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  Unsolved [Advice wanted] Launch (show) widget from button click slot of the main window.
  • Carlos Diaz

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  After some thought i can open a second widget from the button clicked slot of the main window, is this the best approach?

  #!/usr/bin/env python3 from fbs_runtime.application_context import ApplicationContext from PySide2.QtCore import * from PySide2.QtWidgets import * from PySide2.QtUiTools import QUiLoader import sys class child_form(QObject): def __init__(self, ui_resource): QObject.__init__(self) self.ui_file = QFile(ui_resource) self.ui_file.open(QFile.ReadOnly) loader = QUiLoader() self.window = loader.load(self.ui_file) self.ui_file.close() self.window.pushButton.clicked.connect(self.on_push_button_clicked) @Slot() def on_push_button_clicked(self): print('Hi from child') def show(self): self.window.show() class AppContext(ApplicationContext): def run(self): self.app.setStyle('Fusion') main_window_ui = self.get_resource('main_window.ui') loader = QUiLoader() # Child form child_ui = self.get_resource('child_widget.ui') self.child = child_form(child_ui) self.window_file = QFile(main_window_ui) self.window_file.open(QFile.ReadOnly) self.window = loader.load(self.window_file) self.window_file.close() self.window.pushButton.clicked.connect(self.on_push_button_clicked) self.window.show() return self.app.exec_() @Slot() def on_push_button_clicked(self): self.child.show() if __name__ == '__main__': appctxt = AppContext() exit_code = appctxt.run() sys.exit(exit_code)
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  Unsolved Qml textfield qstr to python as integer
  • Marianagb

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  python can convert string values to integers if the string represents a valid integer...such as

  s="123" iVal=int(s)

  If the thing cannot be converted then it throws an exception.

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  Unsolved Numpy grayscale array (2D) to RGB QImage or QPixmap in either red, green or blue
  pyside2 qt for python • • Roulbac

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  So I solved my problem.
  It turns out QImage needs the image to be a flat numpy array.
  Here is how it's done:

  qrgb_dict = {'r': lambda x: QtGui.qRgb(x, 0, 0), 'g': lambda x: QtGui.qRgb(0, x, 0), 'b': lambda x: QtGui.qRgb(0, 0, x)} colortable = [qrgb_dict[color](i) for i in range(256)] img = QtGui.QImage(arr, w, h, w, QtGui.QImage.Format_Indexed8) img.setColorTable(colortable)

  Where arr is an array of shape (h,w) and with uint8 values in 0-255

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  Unsolved UI doesn't update when Python QAbstractListModel changes from a Thread
  pyside2 qt for python • • qtpublicname

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  Unsolved QML/Python/Excel
  • Marianagb

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  Unsolved QAuthenticator5 NTLMv2 not working in HTTPS
  • port

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  Unsolved Best practices for creating a UI in qt for python? QML, QuiLoadUI, or generate through python?
  • metalshreds

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  Solved Problems Importing PySide2.QCharts
  qt for python pyside2 • • metalshreds

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  I was able to solve this by switching to pycharm, for some reason spyder did not want to cooperate, kept getting DLL not found errors, "application failed could not find or load qt plugin could not be initialized", and importing QCharts would not work. everything seems to be working now thorough pycharm.

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  Unsolved Rendering Gif Image
  • VijayalakshmiSundaravaradhan

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  Unsolved Seems Pyside2-5.12.2 doesn't support the OSM offline map and mapboxgl
  • Cloudia

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  I' ve solved the first problem by using a local offline server instead of using "osm.mapping.offline.directory" parameter.

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  Solved qlineedit returnpressed obtain handle to it
  • hermes

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  QObject::sender()

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  Solved QAxContainer Module unavailable in pyqt5 Commercial License
  • Ketan

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  Appreciate your help. Thanks!

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  Unsolved Kill the process for a remote computer by Python in QT
  • monamour

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  @monamour Read the subprocess.call documentation or use QProcess (and read the documentation).

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  Unsolved Using Qt Quick Compiler/Cache for Deployment
  • strahlex

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  Unsolved Deploying QML/Python to android and windows
  qt for python • • qmlfan

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  In short use Qt/C++ for Android.

  PyQt claims to support Android, but nobody achieved to get it working. Qt for Python doesn't support it at all.

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  Unsolved Qt5Widget to PyQt5
  • illunara

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  what guide?

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  Unsolved `QPushButton` without left click animation
  • Atalanttore

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  QPushButton is a subclass of QAbstractButton that adds animation when clicked. Subclass QAbstractButton and implement whatever functionality you need.

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  Unsolved Do websocket module of PySide2 support ssl?
  • tham

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  I use asyncio, asyncqt and websockets to replace QWebsocket before Qt for python become more mature

  Edit : This seems like a known issue--Missing ssl support for QWebSocketServer and QWebSocket
  Edit : Check the source codes of PySide2, I am sure the websocket of Qt do not support ssl yet.

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  Unsolved Cannot import QtCore on ubuntu(anaconda3)
  • tham

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  Solved 'PySide2.QtCore.Signal' object has no attribute 'emit'
  • tham

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  @Kent-Dorfman Tried, do not work, the interpreter keep telling me emit do not exist

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  Unsolved Sender always is null(Invalid Signal signature: textMessageReceived(str))
  • tham

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  @Kent-Dorfman Thanks, this is just a minimum example to show the issues, do you know how could I solve the issue of "Sender is None"? Thanks

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  Unsolved How to control tab text size and corner widget in QTabWidget?
  • BEACON118

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  Unsolved Signal in pyqt5
  • alex_eri

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  Unsolved PySide2, v5.12.2 - "Internal C++ object already deleted."
  • JC89

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  So you're right, it does appear to be a logger issue rather than a Qt one. It wasn't crashing the program at any point, but rather complaining about object cleanup order. Because of the larger structure of our code files, I couldn't assign the logger to wholely be a child of the QMainWindow, but putting the following code in the quit procedure did silence the messages.

  import logging logging.raiseExceptions = False

  Thanks for your contributions.

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  Solved Building PySide2 against static Qt
  • snkaupe

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  Can you please take a look at my question and reply
  https://forum.qt.io/topic/101259/deploying-qml-python-to-android-and-windows

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  Unsolved Problem on list of checkbox signals
  • Moeka_Chan

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  Unsolved Overlay two graph
  qt for python python • • Booz

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  Unsolved Integrate matplotlib plot in a widget
  • Cheesygekko

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  Unsolved Cant find In Qt designer tool like writing text(any random data) while creating .ui file?
  • Narasimha

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  Unsolved Cant find pyqt5 project examples with mvc or mv pattern
  qt for python • • LarsR

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  Unsolved Qt "forbidden" Install Issue
  • Ratty

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  Sorry, I figured it just failed on the last item in the list above. In any case, I just downloaded the offline version of the installer and it worked fine. This gives me a short cut to Qt Designer so I don't need the kit for Python.

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  Unsolved Fitting Qimage to pdf page when printing QTextBrowser
  • krajcsi

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  Unsolved PySide2 - multi-threading cases Python crashs
  • wzzgdcn

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  You should use the default threading available as a standard python library for your threads. Its called "threading", just "threading". It's very, very simple.

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  Unsolved loading external UIs
  • RubbieKelvin

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  #!/usr/bin/python3 import os import sys from PyQt5 import QtCore, QtGui, QtWidgets , uic LOCAL_DIR = os.path.dirname(os.path.realpath(__file__)) + "/" class Main(QtWidgets.QMainWindow): def __init__(self): super().__init__() self.ui = uic.loadUi(LOCAL_DIR + "main.ui", self) self.show() if __name__== '__main__': app = QtWidgets.QApplication([]) gui = Main() sys.exit(app.exec_())
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  Unsolved How to manage loops with button clicks in PyQt5
  • ITSBINS

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  Unsolved Qt Designer Property Sheet plugin crashing
  • ivany4

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  Solved QProcess use on Windows
  pyside2 qt for python • • DeadParrot

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  OK, so the issue turned out to be something different. We are using QtPy and it needs the environment variable QT_API set to pyside2 for our Windows setup. For some reason the environment passed to QProcess isn't inheriting that variable and it was defaulting to pyside. Setting it manually to pyside2 by calling setProcessEnvironment on our QProcess before the start call gets everything working.

  Not sure if this is a PySide2 bug or not. The QProcess.execute documentation says:
  "The environment and working directory are inherited from the calling process."
  but it doesn't say this explicitly for start.