python - How to fix "could not find or load the Qt platform plugin ...
2017年2月2日 · Instead of adding QT_PLUGIN_PATH to your machine locally, one can add the environment variable in PyCharm's python interpreter setting as shown below: This method not only allow your PyCharm's python.exe able to search those DLLs but also not breaking other systems' QT lookup PATH. Thanks
python - How can I check if a keyboard modifier is pressed (Shift, …
2021年3月21日 · I am building a UI with Qt Creator and I want buttons to perform different actions with different modifiers. So I thought I could call functions with dynamic string properties that would perform the
python - PyQt Widget connect() and disconnect() - Stack Overflow
Python Qt QListWidget Double Clicked. 8. pyqt disconnect slots. New style. 1. PyQt disconnect and connect ...
pyqt - Dark theme for Qt widgets? - Stack Overflow
2018年1月15日 · In Qt 6.5 (PyQt6), there is a proper built-in way to get the system light/dark theme. If all you want is for your widgets to respect the system settings, you can set your application style to 'fusion', and let Qt do the rest. Beware that this might make stuff look horrible if you have stylesheets or are using custom colors.
python - Proper way to quit/exit a PyQt program - Stack Overflow
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 exit() are nothing like sys.exit(). The latter will terminate the ...
python - Refreshing a QWidget - Stack Overflow
2015年6月9日 · This function does not cause an immediate repaint; instead it schedules a paint event for processing when Qt returns to the main event loop. This permits Qt to optimize for more speed and less flicker than a call to repaint() does. Calling update() several times normally results in just one paintEvent() call.
python - Best way to display logs in pyqt? - Stack Overflow
2015年2月22日 · Qt included. Don't underestimate this aspect: even some Qt classes that are thread safe are actually not single threaded; for instance, QFileSystemModel is a thread safe object, but it does use threading for file system crawling. If it faces a problem for any reason (ie. access permissions), it will output some debug messages from those threads ...
python qt : automatically resizing main window to fit content
2016年1月6日 · I have a main window which contains a main widget, to which a vertical layout is set. To the layout is added a QTableWidget only (for the moment). When I start the application and call show on the
python - Equivalent to time.sleep for a PyQt application - Stack …
2021年10月14日 · Another option would be to process Qt events while waiting: def num(): for i in range(1, 999): print(i) # Sleep five seconds in total for _ in range(5 * 10): # Process events between short sleep periods QtWidgets.QApplication.processEvents() time.sleep(0.1)
python - Is the PySide Slot Decorator Necessary? - Stack Overflow
2015年12月15日 · Although PyQt4 allows any Python callable to be used as a slot when connecting signals, it is sometimes necessary to explicitly mark a Python method as being a Qt slot and to provide a C++ signature for it. PyQt4 provides the …