with os.open?

[Skaperen]

i have many cases where i need to call os.open, do something with that file descriptor, then close it. is there a way to do that using a with statement? what about using with with an object of my own creation? is there a specific method to implement?

[heiner55]

https://docs.python.org/3/reference/comp...-statement
or
https://stackoverflow.com/questions/1984...r-and-exit

---

Or PEP:
https://www.python.org/dev/peps/pep-0343/

[Gribouillis]

See also contextlib.contextmanager for a simplified interface and also contextlib.closing and the like

import contextlib

@contextlib.contextmanager
def my_open(*args, **kwargs):
    fd = os.open(*args, **kwargs)
    try:
        yield fd
    finally:
        os.close(fd)

with my_open(my_thing) as desc:
    ...

[heiner55]

Thanks, I didn't know that.