迭代器对象 ¶

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 ¶

属于 稳定 ABI (应用程序二进制接口) .

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 ( PyObject * op ) ¶

Return true if the type of op is PySeqIter_Type . This function always succeeds.

PyObject * PySeqIter_New ( PyObject * seq ) ¶

返回值：新引用。 属于 稳定 ABI (应用程序二进制接口) .

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 ¶

属于 稳定 ABI (应用程序二进制接口) .

Type object for iterator objects returned by PyCallIter_New() and the two-argument form of the iter() 内置函数。

int PyCallIter_Check ( PyObject * op ) ¶

Return true if the type of op is PyCallIter_Type . This function always succeeds.

PyObject * PyCallIter_New ( PyObject * callable , PyObject * sentinel ) ¶

返回值：新引用。 属于 稳定 ABI (应用程序二进制接口) .

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.