[Python-ideas] Make os.pipe() return a namedtuple.

Chris Angelico rosuav at gmail.com
Tue Jun 30 04:14:17 CEST 2015

On Tue, Jun 30, 2015 at 12:10 PM, Ben Finney <ben+python at benfinney.id.au> wrote:
> Steven D'Aprano <steve at pearwood.info> writes:
>> Yeah, I always forget which is fd 0 and which is fd 1 too.
>> Having nice descriptive names rather than using numbered indexes is
>> generally better practice
> I definitely prefer to use, and promote, the explicit names “stdin”,
> “stdout”, and “stderr” rather than the file descriptor numbers.
> On the point of confusing them though: I find it easy enough to remember
> that the two streams for output stay together, and the input one comes
> first at 0.
>> and I don't think there is any serious downside to using a namedtuple.
>> A minor enhancement like this shouldn't require an extended discussion
>> here on python-ideas.
> +1, let's just get the standard names there as attributes of a
> namedtuple.

Except that this isn't about stdin/stdout - that just happens to make
a neat mnemonic. This is about a pipe, which has a reading end and a
writing end. If you pass one of those to another process to use as its
stdout, you'll be reading from the reading end; calling it "stdin"
would be confusing, since you're getting what the process wrote to

How about just "read" and "write"?

Yep, Cameron was right...


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