$ mio
mio 0.1.8.dev
mio> it = iter(range(4))
===> it(Object) at 0x7f39655149a8:
       N               = 3
       i               = -1
       iterable        = range(4)
mio> next(it)
===> 0
mio> next(it)
===> 1
mio> next(it)
===> 2
mio> next(it)
===> 3
mio> next(it)

  StopIteration: 
  --------------
  raise(StopIteration) 

  ifFalse(
 raise(StopIteration) 
) 

  __next__ 

  next(it)

mio> it i = -1
===> -1
mio> next(it)
===> 0
mio> next(it)
===> 1
mio> next(it)
===> 2
mio> next(it)
===> 3
mio> next(it)

  StopIteration: 
  --------------
  raise(StopIteration) 

  ifFalse(
 raise(StopIteration) 
) 

  __next__ 

  next(it)