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+.. highlightlang:: c
+
+.. _codeobjects:
+
+Code Objects
+------------
+
+.. sectionauthor:: Jeffrey Yasskin <jyasskin@gmail.com>
+
+
+.. index::
+   object: code
+
+Code objects are a low-level detail of the CPython implementation.
+Each one represents a chunk of executable code that hasn't yet been
+bound into a function.
+
+.. c:type:: PyCodeObject
+
+   The C structure of the objects used to describe code objects.  The
+   fields of this type are subject to change at any time.
+
+
+.. c:var:: PyTypeObject PyCode_Type
+
+   This is an instance of :c:type:`PyTypeObject` representing the Python
+   :class:`code` type.
+
+
+.. c:function:: int PyCode_Check(PyObject *co)
+
+   Return true if *co* is a :class:`code` object
+
+.. c:function:: int PyCode_GetNumFree(PyObject *co)
+
+   Return the number of free variables in *co*.
+
+.. c:function:: PyCodeObject *PyCode_New(int argcount, int nlocals, int stacksize, int flags, PyObject *code, PyObject *consts, PyObject *names, PyObject *varnames, PyObject *freevars, PyObject *cellvars, PyObject *filename, PyObject *name, int firstlineno, PyObject *lnotab)
+
+   Return a new code object.  If you need a dummy code object to
+   create a frame, use :c:func:`PyCode_NewEmpty` instead.  Calling
+   :c:func:`PyCode_New` directly can bind you to a precise Python
+   version since the definition of the bytecode changes often.
+
+
+.. c:function:: int PyCode_NewEmpty(const char *filename, const char *funcname, int firstlineno)
+
+   Return a new empty code object with the specified filename,
+   function name, and first line number.  It is illegal to
+   :func:`exec` or :func:`eval` the resulting code object.