I'm almost sure this is not the ideal forum to ask this, but maybe someone has a quick response.
  I want to deploy my Delphi application that uses Python4Delphi. 
Because I wanted my application standalone, during the installation, I deployed to the Python version needed without registering it.   This allows me to not ask the user for the need to have a particular version of Python on his computer, but...   Hat happens with the rest of the third-party modules, like Pyvista?   On my computer, for developing the Delphi Application, I've installed Pyvista with pip, but I don't know how to install it at the same time that the Delphi Application.   One option is from the installer, call pip to install it, but my Python is unregistered. I don't know if this is going to be possible.    Another option is to deploy the files I have on my developing computer, but I don't know if this will work on the target machine.   Are there other options?   Do you know a "correct" form of doing this?

  Many thanks for considering my request.