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svn+ssh://pythondev@svn.python.org/python/trunk ........ r60876 | georg.brandl | 2008-02-17 16:14:10 +0100 (Sun, 17 Feb 2008) | 2 lines Fix function name. ........ r60877 | facundo.batista | 2008-02-17 17:21:13 +0100 (Sun, 17 Feb 2008) | 4 lines Now we handle different the backup copy, because of security issues regarding user/group and permissions. Fixes 1050828. ........ r60878 | facundo.batista | 2008-02-17 19:59:29 +0100 (Sun, 17 Feb 2008) | 4 lines Issue 2112. mmap does not raises EnvironmentError no more, but a subclass of it. Thanks John Lenton. ........ r60882 | amaury.forgeotdarc | 2008-02-17 21:56:31 +0100 (Sun, 17 Feb 2008) | 5 lines Compilation was broken on Windows since the introduction of Advanced String Formatting. Only PCBuild (vs9) was really tested. Changes for older compilers were done manually. ........ r60883 | georg.brandl | 2008-02-17 22:18:55 +0100 (Sun, 17 Feb 2008) | 2 lines #2133: fix HTML color spec. ........ r60884 | facundo.batista | 2008-02-18 04:43:43 +0100 (Mon, 18 Feb 2008) | 5 lines Issue #1916. Added isgenerator() and isgeneratorfunction() to inspect.py. Thanks Javi Mansilla for patch review and corrections. ........ r60885 | facundo.batista | 2008-02-18 13:48:43 +0100 (Mon, 18 Feb 2008) | 4 lines Issue 1224. Now we support again the double slash in the URL. Thanks Anthony Lenton. ........ r60887 | eric.smith | 2008-02-18 15:25:02 +0100 (Mon, 18 Feb 2008) | 1 line Temporarily removed float tests. See issue 1600. ........ r60891 | kristjan.jonsson | 2008-02-18 18:40:47 +0100 (Mon, 18 Feb 2008) | 1 line Perform correct handling of stack overflow for windows: Catch the correct exception code and reset the overflow condition when handled. ........
111 lines
3.4 KiB
ReStructuredText
111 lines
3.4 KiB
ReStructuredText
.. highlightlang:: c
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.. _tupleobjects:
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Tuple Objects
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-------------
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.. index:: object: tuple
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.. ctype:: PyTupleObject
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This subtype of :ctype:`PyObject` represents a Python tuple object.
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.. cvar:: PyTypeObject PyTuple_Type
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.. index:: single: TupleType (in module types)
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This instance of :ctype:`PyTypeObject` represents the Python tuple type; it is
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the same object as ``tuple`` and ``types.TupleType`` in the Python layer..
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.. cfunction:: int PyTuple_Check(PyObject *p)
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Return true if *p* is a tuple object or an instance of a subtype of the tuple
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type.
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.. cfunction:: int PyTuple_CheckExact(PyObject *p)
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Return true if *p* is a tuple object, but not an instance of a subtype of the
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tuple type.
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.. cfunction:: PyObject* PyTuple_New(Py_ssize_t len)
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Return a new tuple object of size *len*, or *NULL* on failure.
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.. cfunction:: PyObject* PyTuple_Pack(Py_ssize_t n, ...)
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Return a new tuple object of size *n*, or *NULL* on failure. The tuple values
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are initialized to the subsequent *n* C arguments pointing to Python objects.
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``PyTuple_Pack(2, a, b)`` is equivalent to ``Py_BuildValue("(OO)", a, b)``.
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.. cfunction:: Py_ssize_t PyTuple_Size(PyObject *p)
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Take a pointer to a tuple object, and return the size of that tuple.
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.. cfunction:: Py_ssize_t PyTuple_GET_SIZE(PyObject *p)
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Return the size of the tuple *p*, which must be non-*NULL* and point to a tuple;
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no error checking is performed.
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.. cfunction:: PyObject* PyTuple_GetItem(PyObject *p, Py_ssize_t pos)
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Return the object at position *pos* in the tuple pointed to by *p*. If *pos* is
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out of bounds, return *NULL* and sets an :exc:`IndexError` exception.
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.. cfunction:: PyObject* PyTuple_GET_ITEM(PyObject *p, Py_ssize_t pos)
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Like :cfunc:`PyTuple_GetItem`, but does no checking of its arguments.
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.. cfunction:: PyObject* PyTuple_GetSlice(PyObject *p, Py_ssize_t low, Py_ssize_t high)
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Take a slice of the tuple pointed to by *p* from *low* to *high* and return it
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as a new tuple.
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.. cfunction:: int PyTuple_SetItem(PyObject *p, Py_ssize_t pos, PyObject *o)
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Insert a reference to object *o* at position *pos* of the tuple pointed to by
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*p*. Return ``0`` on success.
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.. note::
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This function "steals" a reference to *o*.
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.. cfunction:: void PyTuple_SET_ITEM(PyObject *p, Py_ssize_t pos, PyObject *o)
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Like :cfunc:`PyTuple_SetItem`, but does no error checking, and should *only* be
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used to fill in brand new tuples.
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.. note::
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This function "steals" a reference to *o*.
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.. cfunction:: int _PyTuple_Resize(PyObject **p, Py_ssize_t newsize)
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Can be used to resize a tuple. *newsize* will be the new length of the tuple.
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Because tuples are *supposed* to be immutable, this should only be used if there
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is only one reference to the object. Do *not* use this if the tuple may already
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be known to some other part of the code. The tuple will always grow or shrink
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at the end. Think of this as destroying the old tuple and creating a new one,
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only more efficiently. Returns ``0`` on success. Client code should never
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assume that the resulting value of ``*p`` will be the same as before calling
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this function. If the object referenced by ``*p`` is replaced, the original
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``*p`` is destroyed. On failure, returns ``-1`` and sets ``*p`` to *NULL*, and
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raises :exc:`MemoryError` or :exc:`SystemError`.
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.. cfunction:: int PyTuple_ClearFreeList(void)
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Clear the free list. Return the total number of freed items.
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