The
**for**
statement works directly with
`set`

s, because they are iterable. A
`set`

is not a sequence, but it is like a sequence
because we can iterate through the elements using a
**for**
statement.

Here we create three `set`

s:
`even`

, `odd`

and
`zero`

to reflect some standard outcomes in Roulette.
The union of all three `set`

s is the complete
`set`

of possible spins. We can iterate through
this resulting `set`

.

>>> even= set( range(2,38,2) )
>>> odd= set( range(1,37,2) )
>>> zero= set( (0,'00') )
>>> for n in even|odd|zero:
print n