1.. highlightlang:: c 2 3.. _function-objects: 4 5Function Objects 6---------------- 7 8.. index:: object: function 9 10There are a few functions specific to Python functions. 11 12 13.. c:type:: PyFunctionObject 14 15 The C structure used for functions. 16 17 18.. c:var:: PyTypeObject PyFunction_Type 19 20 .. index:: single: MethodType (in module types) 21 22 This is an instance of :c:type:`PyTypeObject` and represents the Python function 23 type. It is exposed to Python programmers as ``types.FunctionType``. 24 25 26.. c:function:: int PyFunction_Check(PyObject *o) 27 28 Return true if *o* is a function object (has type :c:data:`PyFunction_Type`). 29 The parameter must not be *NULL*. 30 31 32.. c:function:: PyObject* PyFunction_New(PyObject *code, PyObject *globals) 33 34 Return a new function object associated with the code object *code*. *globals* 35 must be a dictionary with the global variables accessible to the function. 36 37 The function's docstring, name and *__module__* are retrieved from the code 38 object, the argument defaults and closure are set to *NULL*. 39 40 41.. c:function:: PyObject* PyFunction_GetCode(PyObject *op) 42 43 Return the code object associated with the function object *op*. 44 45 46.. c:function:: PyObject* PyFunction_GetGlobals(PyObject *op) 47 48 Return the globals dictionary associated with the function object *op*. 49 50 51.. c:function:: PyObject* PyFunction_GetModule(PyObject *op) 52 53 Return the *__module__* attribute of the function object *op*. This is normally 54 a string containing the module name, but can be set to any other object by 55 Python code. 56 57 58.. c:function:: PyObject* PyFunction_GetDefaults(PyObject *op) 59 60 Return the argument default values of the function object *op*. This can be a 61 tuple of arguments or *NULL*. 62 63 64.. c:function:: int PyFunction_SetDefaults(PyObject *op, PyObject *defaults) 65 66 Set the argument default values for the function object *op*. *defaults* must be 67 *Py_None* or a tuple. 68 69 Raises :exc:`SystemError` and returns ``-1`` on failure. 70 71 72.. c:function:: PyObject* PyFunction_GetClosure(PyObject *op) 73 74 Return the closure associated with the function object *op*. This can be *NULL* 75 or a tuple of cell objects. 76 77 78.. c:function:: int PyFunction_SetClosure(PyObject *op, PyObject *closure) 79 80 Set the closure associated with the function object *op*. *closure* must be 81 *Py_None* or a tuple of cell objects. 82 83 Raises :exc:`SystemError` and returns ``-1`` on failure. 84