[Python-Dev] os.tmpfile() problem

[Guido van Rossum]

This seems a question for comp.lang.python or help at python.org (does
that still exist?).

Also, you might consider the APIs available in the tempfile module
rather than os.tempfile().

On 8/7/07, Maciej Fijalkowski <fijall at gmail.com> wrote:
> I've got slight problem with os.tmpfile(). What I would like to do is to get
> the filedesc of tmpfile.
>
> First approach:
>
> os.tmpfile().fileno() of course does not work out, because fileno() does not
> keep object alive. The solution is to keep os.tmpfile() result somewhere for
> an arbitrary amount of time, which is quite obscure. This is problem with
> all file operations, but fortunately if I want a filedesc, I can do just
> os.open() which will not close the file for me.
>
> I've got several obscure solutions, noone satisfies me really:
>
> * If I use .fileno() than I'm on my own and I need to close file myself
>
> * .fileno() returns a int-like object which keeps alive file (well, this
> will explode when keeping this as an index in a list, which does not keep
> the object alive and so on)
>
> * have os._tmpfile() or whatever which returns filedesc
>
> What do you think?
>
> Cheers,
> fijal
>
>
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