1. When installed designer.exe position has changed.
Many blog tutorial said to be directly below the pyqt5-tools, now in its subdirectories Qt / bin below the.
2. The issue of code generatation faied
According issue pyqt5-tools submitted to solve:
If you do not create a virtual environment, then:
Run python folder in the Scripts / pyqt5toolsinstalluic.exe.
If you are pycharm virtual environment, then (red is the project name):
3. questions about your ui file generated py
The above Working dierctory .ui you to store files. $ ProjectFileDir $ represent the path of your project, and I put a sub path \ lib under, so the back added a lib