1 from cpython.ref cimport PyObject
3 cdef extern from "Python.h":
5 ############################################################################
6 # 6.3 Sequence Protocol
7 ############################################################################
9 bint PySequence_Check(object o)
10 # Return 1 if the object provides sequence protocol, and 0
11 # otherwise. This function always succeeds.
13 Py_ssize_t PySequence_Size(object o) except -1
14 # Returns the number of objects in sequence o on success, and -1
15 # on failure. For objects that do not provide sequence protocol,
16 # this is equivalent to the Python expression "len(o)".
18 Py_ssize_t PySequence_Length(object o) except -1
19 # Alternate name for PySequence_Size().
21 object PySequence_Concat(object o1, object o2)
22 # Return value: New reference.
23 # Return the concatenation of o1 and o2 on success, and NULL on
24 # failure. This is the equivalent of the Python expression "o1 +
27 object PySequence_Repeat(object o, Py_ssize_t count)
28 # Return value: New reference.
29 # Return the result of repeating sequence object o count times, or
30 # NULL on failure. This is the equivalent of the Python expression
33 object PySequence_InPlaceConcat(object o1, object o2)
34 # Return value: New reference.
35 # Return the concatenation of o1 and o2 on success, and NULL on
36 # failure. The operation is done in-place when o1 supports
37 # it. This is the equivalent of the Python expression "o1 += o2".
39 object PySequence_InPlaceRepeat(object o, Py_ssize_t count)
40 # Return value: New reference.
41 # Return the result of repeating sequence object o count times, or
42 # NULL on failure. The operation is done in-place when o supports
43 # it. This is the equivalent of the Python expression "o *=
46 object PySequence_GetItem(object o, Py_ssize_t i)
47 # Return value: New reference.
48 # Return the ith element of o, or NULL on failure. This is the
49 # equivalent of the Python expression "o[i]".
51 object PySequence_GetSlice(object o, Py_ssize_t i1, Py_ssize_t i2)
52 # Return value: New reference.
53 # Return the slice of sequence object o between i1 and i2, or NULL
54 # on failure. This is the equivalent of the Python expression
57 int PySequence_SetItem(object o, Py_ssize_t i, object v) except -1
58 # Assign object v to the ith element of o. Returns -1 on
59 # failure. This is the equivalent of the Python statement "o[i] =
60 # v". This function does not steal a reference to v.
62 int PySequence_DelItem(object o, Py_ssize_t i) except -1
63 # Delete the ith element of object o. Returns -1 on failure. This
64 # is the equivalent of the Python statement "del o[i]".
66 int PySequence_SetSlice(object o, Py_ssize_t i1, Py_ssize_t i2, object v) except -1
67 # Assign the sequence object v to the slice in sequence object o
68 # from i1 to i2. This is the equivalent of the Python statement
71 int PySequence_DelSlice(object o, Py_ssize_t i1, Py_ssize_t i2) except -1
72 # Delete the slice in sequence object o from i1 to i2. Returns -1
73 # on failure. This is the equivalent of the Python statement "del
76 int PySequence_Count(object o, object value) except -1
77 # Return the number of occurrences of value in o, that is, return
78 # the number of keys for which o[key] == value. On failure, return
79 # -1. This is equivalent to the Python expression
82 int PySequence_Contains(object o, object value) except -1
83 # Determine if o contains value. If an item in o is equal to
84 # value, return 1, otherwise return 0. On error, return -1. This
85 # is equivalent to the Python expression "value in o".
87 Py_ssize_t PySequence_Index(object o, object value) except -1
88 # Return the first index i for which o[i] == value. On error,
89 # return -1. This is equivalent to the Python expression
92 object PySequence_List(object o)
93 # Return value: New reference.
94 # Return a list object with the same contents as the arbitrary
95 # sequence o. The returned list is guaranteed to be new.
97 object PySequence_Tuple(object o)
98 # Return value: New reference.
99 # Return a tuple object with the same contents as the arbitrary
100 # sequence o or NULL on failure. If o is a tuple, a new reference
101 # will be returned, otherwise a tuple will be constructed with the
102 # appropriate contents. This is equivalent to the Python
103 # expression "tuple(o)".
105 object PySequence_Fast(object o, char *m)
106 # Return value: New reference.
107 # Returns the sequence o as a tuple, unless it is already a tuple
108 # or list, in which case o is returned. Use
109 # PySequence_Fast_GET_ITEM() to access the members of the
110 # result. Returns NULL on failure. If the object is not a
111 # sequence, raises TypeError with m as the message text.
113 PyObject* PySequence_Fast_GET_ITEM(object o, Py_ssize_t i)
114 # Return value: Borrowed reference.
115 # Return the ith element of o, assuming that o was returned by
116 # PySequence_Fast(), o is not NULL, and that i is within bounds.
118 PyObject** PySequence_Fast_ITEMS(object o)
119 # Return the underlying array of PyObject pointers. Assumes that o
120 # was returned by PySequence_Fast() and o is not NULL.
122 object PySequence_ITEM(object o, Py_ssize_t i)
123 # Return value: New reference.
124 # Return the ith element of o or NULL on failure. Macro form of
125 # PySequence_GetItem() but without checking that
126 # PySequence_Check(o) is true and without adjustment for negative
129 Py_ssize_t PySequence_Fast_GET_SIZE(object o)
130 # Returns the length of o, assuming that o was returned by
131 # PySequence_Fast() and that o is not NULL. The size can also be
132 # gotten by calling PySequence_Size() on o, but
133 # PySequence_Fast_GET_SIZE() is faster because it can assume o is