Explicitly setting `DockWidgetFeature` properties disables those properties.

[RokeJulianLockhart]

toolbar_dock = PyQt6.QtWidgets.QDockWidget()
toolbar_dock.setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable)
toolbar_dock.setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable)
toolbar_dock.setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
toolbar_dock.setWindowTitle("Actions")

To my knowledge, explicitly setting the DockWidgetFeatures should grant the QDockWidget them. However, that example produces:

...whereas the undermentioned code:

toolbar_dock = PyQt6.QtWidgets.QDockWidget()
toolbar_dock.setWindowTitle("Actions")

...produces:

[RokeJulianLockhart]

@Pl45m4, thanks. That works:

#!/usr/bin/env python3.13
main_content_dock.setFeatures(
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable  | \
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable | \
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable
)

[Pl45m4]

@RokeJulianLockhart

QDockWidget::setFeatures(QDockWidget::DockWidgetFeatures), for both the C++ and the Qt Py wrappers, sets the given features... but just the recent ones you pass with the function (overriding everything else that was set before).
Meaning if you setFeatures(DockWidgetFloatable) last like you do in your first example, this flag is the only one that is set, while the default config includes an OR'ed combination of floatable, closable and movable.

So set all the preferred flags in one step.

[RokeJulianLockhart]

So set all the preferred flags in one step.

@Pl45m4, embarrassingly, how do I do that for this method? I ask because:

1. main_content_dock.setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable).setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable).setFeatures(PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
   

   setFeatures(self, features: QDockWidget.DockWidgetFeature): too many arguments

2. main_content_dock.setFeatures([PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable, PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable, PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable])
   

   setFeatures(self, features: QDockWidget.DockWidgetFeature): argument 1 has unexpected type 'list'

[Pl45m4]

@RokeJulianLockhart

As mentioned above, OR them using binary OR operator:

dock_widget.setFeatures(QDockWidget.DockWidgetClosable | QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)

(not tested)

[RokeJulianLockhart]

@Pl45m4, thanks. That works:

#!/usr/bin/env python3.13
main_content_dock.setFeatures(
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable  | \
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable | \
    PyQt6.QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable
)