Python provides two general-purpose iterator objects. The first, a sequence
iterator, works with an arbitrary sequence supporting the __getitem__()
method. The second works with a callable object and a sentinel value, calling
the callable for each item in the sequence, and ending the iteration when the
sentinel value is returned.
PyTypeObject PySeqIter_Type
Type object for iterator objects returned by PySeqIter_New() and the
one-argument form of the iter() built-in function for built-in sequence
types.
int PySeqIter_Check(op)
Return true if the type of op is PySeqIter_Type.
PyObject* PySeqIter_New(PyObject *seq)
Return value: New reference.Return an iterator that works with a general sequence object, seq. The
iteration ends when the sequence raises IndexError for the subscripting
operation.
PyTypeObject PyCallIter_Type
Type object for iterator objects returned by PyCallIter_New() and the
two-argument form of the iter() built-in function.
int PyCallIter_Check(op)
Return true if the type of op is PyCallIter_Type.
PyObject* PyCallIter_New(PyObject *callable, PyObject *sentinel)
Return value: New reference.Return a new iterator. The first parameter, callable, can be any Python callable object that can be called with no parameters; each call to it should return the next item in the iteration. When callable returns a value equal to sentinel, the iteration will be terminated.