This launches JupyterLab in a Qt application. If you look at running kernels in the left tab, you will see a kernel named qt-python. Right-click on it and choose "New Console for Kernel". This console ...
Here are 2 examples of the Collapsable Frame in action. The first one is in a standard Python application, the second one is inside a Maya session. The content of the collapsable frame widget can be ...