Selected Verts in Python

Couple of quick questions I haven’t been able to turn up answers to…

1: If I select a number of verts in edit mode, how do I access these selected verts within a Python script?

2: If and when I do access them, do they come in a specific order (hopefully the order in which I selected them in the first place)?

I dont think you do have access to them.

You do however have access to selected faces.

Id like somebody to prove me wrong though.