Code Objects - Python 3.10.9 documentation 编辑
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.
- 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.
- PyTypeObject
PyCode_Type
This is an instance of
PyTypeObject
representing the Pythoncode
type.
- int
PyCode_GetNumFree
(PyCodeObject *co) Return the number of free variables in co.
- PyCodeObject *
PyCode_New
(int argcount, int kwonlyargcount, 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 value: New reference.
Return a new code object. If you need a dummy code object to create a frame, use
PyCode_NewEmpty()
instead. CallingPyCode_New()
directly can bind you to a precise Python version since the definition of the bytecode changes often.
- PyCodeObject *
PyCode_NewWithPosOnlyArgs
(int argcount, int posonlyargcount, int kwonlyargcount, 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 value: New reference.
Similar to
PyCode_New()
, but with an extra “posonlyargcount” for positional-only arguments.New in version 3.8.
- PyCodeObject *
PyCode_NewEmpty
(const char *filename, const char *funcname, int firstlineno) - Return value: New reference.
Return a new empty code object with the specified filename, function name, and first line number. It is illegal to
exec()
oreval()
the resulting code object.
- int
PyCode_Addr2Line
(PyCodeObject *co, int byte_offset) Return the line number of the instruction that occurs on or before
byte_offset
and ends after it. If you just need the line number of a frame, usePyFrame_GetLineNumber()
instead.For efficiently iterating over the line numbers in a code object, use the API described in PEP 626.
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