If you are looking for a pure python tutorial, you should have a look at these:

ASE Tutorial 1:
Introduction to the ListOfAtoms class.
ASE Tutorial 2:
Manipulation of atoms and unitcell.
ASE Tutorial 3:
STM images of a Al(100) surface
ASE Tutorial 4:
Localized Wannier Orbitals
ASE Tutorial 5:
Electron Transport Calculations
ASE Tutorial 6:
Electron Transport Calculations with Siesta