Calling an exe within Python

[Dockeen]

If I were to use Python as a controller / integrator for a number of
stand-alone executables, then I would need to call those exe files from within
Python

(1) Easy question, is this possible?
(2) When I do such a call, does execution within the Python script wait for the
exe to finish or does it spawn a new threat for the exe and move on?

Wayne

However dumb you think my questions are, they are nowhere near as
intellectually challenged as I am.