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7.5.7 Slice Objects
- PyTypeObject PySlice_Type
- The type object for slice objects. This is the same as
types.SliceType.
-
| int PySlice_Check( |
PyObject *ob) |
- Returns true if ob is a slice object; ob must not be NULL.
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| PyObject* PySlice_New( |
PyObject *start, PyObject *stop, PyObject *step) |
-
Return value: New reference.
Return a new slice object with the given values. The start, stop,
and step parameters are used as the values of the slice object attributes of
the same names. Any of the values may be NULL, in which case the
None will be used for the corresponding attribute. Returns NULL if the new object could not be allocated.
-
| int PySlice_GetIndices( |
PySliceObject *slice, int length, int *start, int *stop,
int *step) |
- Retrieve the start, stop and step indices from the slice object slice,
assuming a sequence of length length. Treats indices greater than length
as errors.
Returns 0 on success and -1 on error with no exception set (unless one of the indices
was not None and failed to be converted to an integer, in which
case -1 is returned with an exception set).
You probably do not want to use this function. If you want to use slice objects in
versions of Python prior to 2.3, you would probably do well to incorporate the source of PySlice_GetIndicesEx, suitably renamed, in the source of your
extension.
-
| int PySlice_GetIndicesEx( |
PySliceObject *slice, int length, int *start, int *stop,
int *step, int *slicelength) |
- Usable replacement for PySlice_GetIndices. Retrieve the
start, stop, and step indices from the slice object slice assuming a sequence
of length length, and store the length of the slice in slicelength.
Out of bounds indices are clipped in a manner consistent with the handling of normal
slices.
Returns 0 on success and -1 on error with exception set.
New in version 2.3.
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