6.3 Sequence Protocol

int PySequence_Check(PyObject *o)

Return 1 if the object provides sequence protocol, and 0 otherwise. This function always succeeds.

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

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, int count)

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_GetItem(PyObject *o, int i)

Return the ith element of o, or NULL on failure. This is the equivalent of the Python expression "o[i]".

PyObject* PySequence_GetSlice(PyObject *o, int i1, int i2)

Return the slice of sequence object o between i1 and i2, or NULL on failure. This is the equivalent of the Python expression "o[i1:i2]".

int PySequence_SetItem(PyObject *o, int i, PyObject *v)

Assign object v to the ith element of o. Returns -1 on failure. This is the equivalent of the Python statement "o[i] = v".

int PySequence_DelItem(PyObject *o, int i)

Delete the ith element of object v. Returns -1 on failure. This is the equivalent of the Python statement "del o[i]".

int PySequence_SetSlice(PyObject *o, int i1, int i2, PyObject *v)

Assign the sequence object v to the slice in sequence object o from i1 to i2. This is the equivalent of the Python statement "o[i1:i2] = v".

int PySequence_DelSlice(PyObject *o, int i1, int i2)

Delete the slice in sequence object o from i1 to i2. Returns -1 on failure. This is the equivalent of the Python statement "del o[i1:i2]".

PyObject* PySequence_Tuple(PyObject *o)

Returns the o as a tuple on success, and NULL on failure. This is equivalent to the Python expression tuple(o).

int PySequence_Count(PyObject *o, PyObject *value)

Return the number of occurrences of value in o, that is, return the number of keys for which o[key] == value. On failure, return -1. This is equivalent to the Python expression "o.count(value)".

int PySequence_In(PyObject *o, PyObject *value)

Determine if o contains value. If an item in o is equal to value, return 1, otherwise return 0. On error, return -1. This is equivalent to the Python expression "value in o".

int PySequence_Index(PyObject *o, PyObject *value)

Return the first index i for which o[i] == value. On error, return -1. This is equivalent to the Python expression "o.index(value)".