| | co_flags | bitmap of ``CO_*`` flags, |

| | | read more :ref:`here |

| | | <inspect-module-co-flags>`|

.. _inspect-module-co-flags:

Code Objects Bit Flags

Python code objects have a ``co_flags`` attribute, which is a bitmap of

the following flags:

.. data:: CO_NEWLOCALS

If set, a new dict will be created for the frame's ``f_locals`` when

the code object is executed.

.. data:: CO_VARARGS

The code object has a variable positional parameter (``*args``-like).

.. data:: CO_VARKEYWORDS

The code object has a variable keyword parameter (``**kwargs``-like).

.. data:: CO_GENERATOR

The flag is set when the code object is a generator function, i.e.

a generator object is returned when the code object is executed.

.. data:: CO_NOFREE

The flag is set if there are no free or cell variables.

.. data:: CO_COROUTINE

The flag is set when the code object is a coroutine function, i.e.

a coroutine object is returned when the code object is executed. See

:pep:`492` for more details.

.. versionadded:: 3.5

.. data:: CO_ITERABLE_COROUTINE

Used to turn generators into generator-based coroutines. Generator

objects with this flag can be used in ``await`` expression, and can

``yield from`` coroutine objects. See :pep:`492` for more details.

.. versionadded:: 3.5

.. note::

The flags are specific to CPython, and may not be defined in other

Python implementations. Furthermore, the flags are an implementation

detail, and can be removed or deprecated in future Python releases.

It's recommended to use public APIs from the :mod:`inspect` module

for any introspection needs.