Re: [9fans] isatty

[Boyd Roberts <boyd@strakt.com>]

presotto@closedmind.org wrote:
> The version comparison is an overkill and potentially wrong since
> whatever is implementing /dev/cons may decide to update the
> version each write, as is our practice in other places.

I had this in mind as I wrote it and I asked the question
because I wanted an answer from the source.

> That should work in general as long as the namespace hasn't
> been changed twixt the opening of the fd and the dirstat.
> Otherwise /dev/cons may be under a different mount point
> number and hence a different c.dev.

Sure.

> The question isatty is usually trying to answer is
> "does the fd has an interacting user behind it?".  A
> hard question to answer in a world where the geography
> can shift so easily.

True.  But Python seems to really like you to be able to call
isatty.  Whether it wants to do it or whether it's part of the
'os' module is a question I don't want to know and isatty is
a function I never want to call.

The crawling across broken glass [aka dealing with configure
and configure based code] was vastly outweighed by the buzz
I got from using Plan 9.