I think the initial pip install woes were due to PyQt5 switching to the manylinux2014 platform tag for the latest release (see the wheels on PyPI for 5.14.1 vs 5.14.0). Only pip versions >= 19.3 recognize this platform tag (ref), so if you happen to have an older version of pip, it would instead try … Read more
Using as base the logic that is implemented in the solution of @xsquared modifying certain parts we obtain the following: PyQt4 version from PyQt4 import QtCore, QtGui class CollapsibleBox(QtGui.QWidget): def __init__(self, title=””, parent=None): super(CollapsibleBox, self).__init__(parent) self.toggle_button = QtGui.QToolButton( text=title, checkable=True, checked=False ) self.toggle_button.setStyleSheet(“QToolButton { border: none; }”) self.toggle_button.setToolButtonStyle( QtCore.Qt.ToolButtonTextBesideIcon ) self.toggle_button.setArrowType(QtCore.Qt.RightArrow) self.toggle_button.pressed.connect(self.on_pressed) self.toggle_animation = QtCore.QParallelAnimationGroup(self) … Read more
Put the loop variable in a default argument, like this: lambda state, instance=instance: findInstance.projectsInstance.myslot( “TWCH”, findInstance, instance.text(), instance.checkState(), instance) This will give each lambda its own local copy of the instance variable. EDIT Here’s a simple script that demonstrates how to use default lambda arguments: from PyQt4 import QtGui class Window(QtGui.QWidget): def __init__(self): QtGui.QWidget.__init__(self) layout … Read more
From your question you can presume that the structure of your project is as follows: ├── index.html ├── jquery.js ├── main.py ├── my_custom.js └── styles.css For your case there are 2 options: using –add-data import os import sys from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets def resource_path(relative_path): “”” Get absolute path to resource, works for dev … Read more
The getOpenFileName function in PyQt4 returns a string that is the name of the selected file, and if none is selected then it returns an empty string. filename = QFileDialog.getOpenFileName(self, “Open Template”, “c:\\”, “Templates (*.xml);;All Files (*.*)”) However in PyQt5 this returns a tuple of 2 elements where the first one is a string that … Read more
As you have noticed opencv reads the image in BGR format but QImage in RGB, in your first method you convert to QImage without doing the conversion and then you use rgbSwapped() method to do the conversion. By testing the first method I get: 1000 loops, best of 5: 291 usec per loop In the … Read more
Qt signals can have arguments that will be passed to the slots they are connected to; an example would be the new value as an argument in a signal changed. Therefore, while you can have a slot with arguments, you cannot define the actual values of those when connecting the signal to the slot, as … Read more
Here is a working example of a separate worker thread which can send and receive signals to allow it to communicate with a GUI. I made two simple buttons, one which starts a long calculation in a separate thread, and one which immediately terminates the calculation and resets the worker thread. Forcibly terminating a thread … Read more
Here I’m using the show method. Here is a working example (derived from yours): #!/usr/bin/env python # -*- coding: utf-8 -*- from PyQt4 import QtGui, QtCore import sys class Second(QtGui.QMainWindow): def __init__(self, parent=None): super(Second, self).__init__(parent) class First(QtGui.QMainWindow): def __init__(self, parent=None): super(First, self).__init__(parent) self.pushButton = QtGui.QPushButton(“click me”) self.setCentralWidget(self.pushButton) self.pushButton.clicked.connect(self.on_pushButton_clicked) self.dialog = Second(self) def on_pushButton_clicked(self): self.dialog.show() def … Read more
In the case of QTableView the data must be provided through a model since it implements the MVC (Model-View-Controller) paradigm, in the case of pandas there is no default model but we can create a custom as shown in the following part: class PandasModel(QtCore.QAbstractTableModel): def __init__(self, df = pd.DataFrame(), parent=None): QtCore.QAbstractTableModel.__init__(self, parent=parent) self._df = df.copy() … Read more