Iterator Objects — Python documentation
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Python/docs/3.6/c-api/iterator
Iterator Objects
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.
- 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.
- 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.