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.
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.
Return true if the type of op is PySeqIter_Type. This function
always succeeds.
Return an iterator that works with a general sequence object, seq. The
iteration ends when the sequence raises IndexError for the subscripting
operation.
Type object for iterator objects returned by PyCallIter_New() and the
two-argument form of the iter() built-in function.
Return true if the type of op is PyCallIter_Type. This
function always succeeds.
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.
The type object for range objects.
These are built-in iteration types that are included in Python’s C API, but provide no additional functions. They are here for completeness.
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Type objects for iterators of various built-in objects.
Do not create instances of these directly; prefer calling
PyObject_GetIter() instead.
Note that there is no guarantee that a given built-in type uses a given iterator
type. For example, iterating over range will use one of two iterator
types depending on the size of the range. Other types may start using a
similar scheme in the future, without warning.