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.

PyCodeObject

The C structure of the objects used to describe code objects. The fields of this type are subject to change at any time.

PyTypeObject PyCode_Type

This is an instance of PyTypeObject representing the Python code type.

int PyCode_Check ( PyObject  *co )

Return true if co is a code object.

int PyCode_GetNumFree ( PyObject  *co )

Return the number of free variables in co.

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 PyCode_NewEmpty() instead. Calling PyCode_New() directly can bind you to a precise Python version since the definition of the bytecode changes often.

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 exec or eval() the resulting code object.