python's for not like c++'s?

[jerry smith]

for(int x=3;x<10;x+=3)
	cout << x << " ";
cout << endl;
for(int y=9;y>0;y-=3)
	cout << y<< " ";

how would i do something similiar to this in python?
all i see on the for loops for python are iterating through
the whole sequence of a list. as far as i could see there doesnt
seem to be an easy way to start somewhere in the middle of a
list. also no way to iterate through a list other than the incrament
by one and no decramenting through a list.
please help?

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