This is happening because Google Colab and Jupyter run on virtual environments which do not support GUI outputs as you cannot open new windows through a browser. Running it locally on a code editor(Spyder, or even IDLE) ensures that it can open a new window for the GUI to initialize. For coding the GUI it … Read more
I found the solution through the help of this SO post, which links to this free sample chapter of a book I’m probably gonna need to buy. As sort of mentioned in a number of other posts, one needs to “Promote” the blank QtWidget to a MplWidget using the header mplwidget. After doing this, and … Read more
The problem in your case is that the classes you try to inherit from have different metaclasses: >>> type(QStandardItem) <class ‘sip.wrappertype’> >>> type(ConfigParser) <class ‘abc.ABCMeta’> Therefore python can’t decide which should be the metaclass for the newly created class. In this case, it would have to be a class inheriting from both sip.wrappertype (or PyQt5.QtCore.pyqtWrapperType … Read more
QtWebKit got deprecated upstream in Qt 5.5 and removed in 5.6. You may want to switch to PyQt5.QtWebEngineWidgets.QWebEngineView. For basic use of PyQt5.QtWebKitWidgets.QWebView, it can simply be updated to use PyQt5.QtWebEngineWidgets.QWebEngineView in the source code, but there may be some differences in the new component which require further adjustments.
I’ve figured out the issue, apparently Pylint doesn’t load any C extensions by default, because those can run arbitrary code. So I found that if you create a system file in your project directory with the file named .pylintrc the rc file can whitelist this package to stop throwing errors by adding the following code … Read more
Mainly I use the following command under the cmd pip install pyqt5 And it works with no problem!
Calling QCoreApplication.quit() is the same as calling QCoreApplication.exit(0). To quote from the qt docs: After this function has been called, the application leaves the main event loop and returns from the call to exec(). The exec() function returns returnCode. If the event loop is not running, this function does nothing. [emphasis added] So quit() or … Read more
Suppose you had a file called create.py like def square (num) return num ** 2 Another file in the same directory called input.py from . import create def take_input(): x = input(“Enter Input”) return create.square(x) And finally your main.py from . import input if __name__ == ‘__main__’: ip = input.take_input() You will call the command … Read more
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
When building an app with cx_Freeze on MacOSX all dependent libraries (.so files on MacOSX) are packaged into the application bundle. It is this that makes the application portable to other systems, without requiring a second install of Qt. When launching the Application, the libraries should therefore be loaded from within the bundle. However, in … Read more