Helpful or not so helpful links but see the Python QTDesigner at the end

https://www.qt.io/download?hsCtaTracking=f24f249b-61fb-4dec-9869-50512342f8d9%7Cf3adf380-4740-4f7e-9e49-d06fa99445fa

To load QTCreator but this does appear to work so install the full version of Xcode.

This install 11GB but why??For Appla MacOS, you need to install Xcode minimal toolsxcode-select –installYou could also try this: