Yes, there is QComboBox.findText, which will return the index of the matched item (or -1, if there isn’t one). By default, the search does exact, case-sensitive matching, but you can tweak the behaviour by passing some match-flags as the second argument. For example, to do case-insensitive matching: index = combo.findText(text, QtCore.Qt.MatchFixedString) if index >= 0: … Read more
Assume you are running under Windows. Application Error code 0xc0000005, also known as Access Violation error, is a common problem experienced by Windows users, regardless of os version. There are various causes to trigger Application Error 0xc0000005. For my case, I’m running debug mode in PyCharm (or Eclipse) with code that includes the following: from … Read more
It is because of missing Python3.dll (stub dll, that re-exports Python3x.dll functions, so that one version of extension can work for multiple versions of python). If your Python distro doesn’t bundle python3.dll, you can try one from WinPython (https://winpython.github.io/). At least the 2017/04/01 versions should have it. 1) Download WinPython (‘Zero’ version suffices; must be … Read more
I struggled with this as well. The pyqt5-tools approach is cumbersome so I created a standalone installer for Qt Designer. It’s only 40 MB. Maybe you will find it useful!
What helped me is upgrading pip from 20.2.3 to the latest one (in my case 21.1.1)
You can define your own slot (any python callable) and connect that to the signal, then call the other slots from that one slot. class Example(QWidget): def __init__(self): super().__init__() self.initUI() def printLabel(self, str): print(str) def logLabel(self, str): ”’log to a file”’ pass @QtCore.pyqtSlot(int) def on_sld_valueChanged(self, value): self.lcd.display(value) self.printLabel(value) self.logLabel(value) def initUI(self): self.lcd = QLCDNumber(self) self.sld … Read more
Assuming everything was installed correctly, you need to adjust your imports slightly to port from PyQt4 to PyQt5. The main GUI elements are in the QtWidgets module, whilst the more basic GUI elements are in QtGui. See the Qt modules page for more details. The example code needs to be changed to something like: from … Read more
No, but you may use my fairly comprehensive stylesheets that should look excellent on most platforms (it’s inspired by KDE’s Breeze Theme, which is a dark theme that is quite elegant). This was (hard) forked from the excellent QDarkStylesheet, which I felt had theme issues in numerous areas, so I modified it extensively for my … Read more
If you are on ubuntu, just install pyqt5 with apt-get command: sudo apt-get install python3-pyqt5 # for python3 or sudo apt-get install python-pyqt5 # for python2 However, on Ubuntu 14.04 the python-pyqt5 package is left out [source] and need to be installed manually [source]
My first suggestion is to use Qt Designer to create your GUIs. Typing them out yourself sucks, takes more time, and you will definitely make more mistakes than Qt Designer. Here are some PyQt tutorials to help get you on the right track. The first one in the list is where you should start. A … Read more