Because it doesn't take long to get past the whitespace syntax and get on with programming.
Agreed. I really don't understand why everyone complains about whitespace, when Python's almost religious insistence on counting from 0 is much more difficult to get used to. I mean, i get why range(8) counts from 0 to 7, but range(1,8) counts from 1 to 7? That makes no sense at all.