The scripts pylupdate5.exe, pyrcc5.exe and pyuic5.exe are installed in 'd:Scripts' which is not on PATH.

If the scripts pylupdate5.exe, pyrcc5.exe, and pyuic5.exe are installed in a directory that is not on the PATH, you have a few options to resolve this issue:

1. Add the directory 'd:Scripts' to the PATH environment variable:
- Open the Control Panel and go to System > Advanced system settings.
- Click on the "Environment Variables" button.
- In the "System variables" section, find the "Path" variable and click "Edit".
- Add the directory 'd:Scripts' to the list of paths, separating each path with a semicolon (;).
- Click "OK" to save the changes.

2. Specify the full path to the scripts in your code:
If you don't want to modify the PATH variable, you can specify the full path to the scripts in your code. For example:

   import os
   os.system("d:Scripts/pylupdate5.exe")

3. Move the scripts to a directory that is already on the PATH:
Alternatively, you can move the scripts pylupdate5.exe, pyrcc5.exe, and pyuic5.exe to a directory that is already included in the PATH environment variable. This way, you won't need to modify the PATH or specify the full path in your code.

Choose the method that suits your needs best and ensure that the scripts are accessible by either adding the directory to the PATH or specifying the full path in your code.