Sequence Protocol

int PySequence_Check(PyObject *o)

Part of the Stable ABI.

Return 1 if the object provides the sequence protocol, and 0 otherwise. Note that it returns 1 for Python classes with a __getitem__() method, unless they are dict subclasses, since in general it is impossible to determine what type of keys the class supports. This function always succeeds.

Py_ssize_t PySequence_Size(PyObject *o)

Py_ssize_t PySequence_Length(PyObject *o)

Part of the Stable ABI.

Returns the number of objects in sequence o on success, and -1 on failure. This is equivalent to the Python expression len(o).

PyObject *PySequence_Concat(PyObject *o1, PyObject *o2)

Return value: New reference. Part of the Stable ABI.

Return the concatenation of o1 and o2 on success, and NULL on failure. This is the equivalent of the Python expression o1 + o2.

PyObject *PySequence_Repeat(PyObject *o, Py_ssize_t count)

Return value: New reference. Part of the Stable ABI.

Return the result of repeating sequence object o count times, or NULL on failure. This is the equivalent of the Python expression o * count.

PyObject *PySequence_InPlaceConcat(PyObject *o1, PyObject *o2)

Return value: New reference. Part of the Stable ABI.

Return the concatenation of o1 and o2 on success, and NULL on failure. The operation is done in-place when o1 supports it. This is the equivalent of the Python expression o1 += o2.

PyObject *PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count)

Return value: New reference. Part of the Stable ABI.

Return the result of repeating sequence object o count times, or NULL on failure. The operation is done in-place when o supports it. This is the equivalent of the Python expression o *= count.

PyObject *PySequence_GetItem(PyObject *o,