Cell Objects¶
„Cell” objects are used to implement variables referenced by multiple scopes. For each such variable, a cell object is created to store the value; the local variables of each stack frame that references the value contains a reference to the cells from outer scopes which also use that variable. When the value is accessed, the value contained in the cell is used instead of the cell object itself. This de-referencing of the cell object requires support from the generated byte-code; these are not automatically de-referenced when accessed. Cell objects are not likely to be useful elsewhere.
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PyCellObject
¶ The C structure used for cell objects.
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PyTypeObject
PyCell_Type
¶ The type object corresponding to cell objects.
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int
PyCell_Check
(ob)¶ Return true if ob is a cell object; ob must not be
NULL
. This function always succeeds.
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PyObject*
PyCell_New
(PyObject *ob)¶ - Return value: New reference.
Create and return a new cell object containing the value ob. The parameter may be
NULL
.
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PyObject*
PyCell_Get
(PyObject *cell)¶ - Return value: New reference.
Return the contents of the cell cell.
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PyObject*
PyCell_GET
(PyObject *cell)¶ - Return value: Borrowed reference.
Return the contents of the cell cell, but without checking that cell is non-
NULL
and a cell object.