1 from cpython.ref cimport PyObject
3 cdef extern from "Python.h":
5 ############################################################################
7 ############################################################################
9 bint PyTuple_Check(object p)
10 # Return true if p is a tuple object or an instance of a subtype
13 bint PyTuple_CheckExact(object p)
14 # Return true if p is a tuple object, but not an instance of a subtype of the tuple type.
16 tuple PyTuple_New(Py_ssize_t len)
17 # Return value: New reference.
18 # Return a new tuple object of size len, or NULL on failure.
20 tuple PyTuple_Pack(Py_ssize_t n, ...)
21 # Return value: New reference.
22 # Return a new tuple object of size n, or NULL on failure. The
23 # tuple values are initialized to the subsequent n C arguments
24 # pointing to Python objects. "PyTuple_Pack(2, a, b)" is
25 # equivalent to "Py_BuildValue("(OO)", a, b)".
27 Py_ssize_t PyTuple_Size(object p) except -1
28 # Take a pointer to a tuple object, and return the size of that tuple.
30 Py_ssize_t PyTuple_GET_SIZE(object p)
31 # Return the size of the tuple p, which must be non-NULL and point
32 # to a tuple; no error checking is performed.
34 PyObject* PyTuple_GetItem(object p, Py_ssize_t pos) except NULL
35 # Return value: Borrowed reference.
36 # Return the object at position pos in the tuple pointed to by
37 # p. If pos is out of bounds, return NULL and sets an IndexError
40 PyObject* PyTuple_GET_ITEM(object p, Py_ssize_t pos)
41 # Return value: Borrowed reference.
42 # Like PyTuple_GetItem(), but does no checking of its arguments.
44 tuple PyTuple_GetSlice(object p, Py_ssize_t low, Py_ssize_t high)
45 # Return value: New reference.
46 # Take a slice of the tuple pointed to by p from low to high and return it as a new tuple.
48 int PyTuple_SetItem(object p, Py_ssize_t pos, object o)
49 # Insert a reference to object o at position pos of the tuple
50 # pointed to by p. Return 0 on success. Note: This function
51 # ``steals'' a reference to o.
53 void PyTuple_SET_ITEM(object p, Py_ssize_t pos, object o)
54 # Like PyTuple_SetItem(), but does no error checking, and should
55 # only be used to fill in brand new tuples. Note: This function
56 # ``steals'' a reference to o.
58 int _PyTuple_Resize(PyObject **p, Py_ssize_t newsize) except -1
59 # Can be used to resize a tuple. newsize will be the new length of
60 # the tuple. Because tuples are supposed to be immutable, this
61 # should only be used if there is only one reference to the
62 # object. Do not use this if the tuple may already be known to
63 # some other part of the code. The tuple will always grow or
64 # shrink at the end. Think of this as destroying the old tuple and
65 # creating a new one, only more efficiently. Returns 0 on
66 # success. Client code should never assume that the resulting
67 # value of *p will be the same as before calling this function. If
68 # the object referenced by *p is replaced, the original *p is
69 # destroyed. On failure, returns -1 and sets *p to NULL, and
70 # raises MemoryError or SystemError.