How control a GUI for an unrelated application from a Python script?

[Christian Seberino]

I have a third party GUI that manages some hardware.

I want to control the hardware from a Python script.

This seems to mean I need to somehow have Python code
  that imitates a human doing the necessary
    actions on the GUI (selecting menu options, pressing buttons, etc.)

Is this possible / easy / doable?

Thanks!

Chris