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Date: Wed, 2 Sep 2015 12:08:03 +1000
From: Cameron Simpson <cs@zip.com.au>
To: python-list@python.org
Subject: Re: Low level file descriptors and high-level Python files
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Xref: csiph.com comp.lang.python:95850

On 02Sep2015 08:01, Cameron Simpson <cs@zip.com.au> wrote:
>One circumstance where you might use fdopen and _not_ want .close to close the underlying service is when you're handed a file descriptor over which you're supposed to perform some I/O, and the I/O library functions use high level files. In that case you might want code like this:
>
> fd2 = os.dup(fd)
> fp = open(fd2, 'a+b') # or whatever mode
> ... do stuff, perhaps passing fp to a library function ...
> fp.close()
>
>fd2 is not closed, but fd is still open for further use.

Um, "fd2 _is_ closed". Whoops.

Cheers,
Cameron Simpson <cs@zip.com.au>

Freedom is the right to be wrong, not the right to do wrong.
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