By default, PyQt5 or -6 won't install Qt Designer for us, we need to install another package called pyqt5-tool. Although from the name we know this package is developed for PyQt5, don't worry, PyQt6 can also use it.
Switch to our terminal, and use
pip to install pyqt5-tool:
(venv) E:\project\FluidIML> pip install pyqt5-tools
Something to be noticed here first is: the previous version of pyqt5-tool put the
designer.exe under a path like:
answers with this path can still be seen on stackoverflow.
However, if you read the update information of pyqt5-tools on Pypi, it's structure has been changed.
Now you may find the
designer.exe under directories like:
to start Qt designer, you can simply go to this path and double click the
designer.exe executable file.
also in our terminal:
(venv) E:\project\FluidIML> venv\Lib\site-packages\qt5_applications\Qt\bin\designer