There are two functions specifically for working with iterators.
intPyIter_Check(
*o)
Part of the
since version 3.8.Return non-zero if the object o can be safely passed to
, and 0 otherwise. This function always succeeds.
intPyAIter_Check(
*o)
Part of the
since version 3.10.Return non-zero if the object o provides the AsyncIterator protocol, and 0 otherwise. This function always succeeds.
New in version 3.10.
*PyIter_Next(
*o)
Return value: New reference. Part of the
.Return the next value from the iterator o. The object must be an iterator according to
(it is up to the caller to check this). If there are no remaining values, returns NULL with no exception set. If an error occurs while retrieving the item, returns NULL and passes along the exception.
To write a loop which iterates over an iterator, the C code should look something like this:
PyObject*iterator=PyObject_GetIter(obj);PyObject*item;if(iterator==NULL){/* propagate error */}while((item=PyIter_Next(iterator))){/* do something with item */.../* release reference when done */Py_DECREF(item);}Py_DECREF(iterator);if(PyErr_Occurred()){/* propagate error */}else{/* continue doing useful work */}typePySendResult
The enum value used to represent different results of
.
New in version 3.10.
PyIter_Send(
*iter,
*arg,
**presult)
Part of the
since version 3.10.Sends the arg value into the iterator iter. Returns:
PYGEN_RETURN if iterator returns. Return value is returned via presult.
PYGEN_NEXT if iterator yields. Yielded value is returned via presult.
PYGEN_ERROR if iterator has raised and exception. presult is set to NULL.
New in version 3.10.