[Python-Dev] RE: Windows IO
Fred L. Drake, Jr.
Mon, 17 Mar 2003 17:06:49 -0500
David LeBlanc writes:
> "isatty" is not documented at all under the Global Modules "sys" entry for
> Python 2.2.1 documentation (sorry, I thought "PythonDoc" was a recognized
> name). The following doesn't work:
> Is isatty a built-in, a function of os only available on Unix, or a function
> of sys available on all platforms? It appears to be a function in the sys
> module and so the doc for it should go there?
isatty() is a method of a file object. It's documented as part of the
file object; see section 2.2.8 of the library reference manual.
> Under the "os" entry it's:
> Return 1 if the file descriptor fd is open and connected to a tty(-like)
> device, else 0. Availability: Unix. "
> I don't see how to create a file() that is connected to stdout without
> importing sys...? Is there a way? If there is not, than file.isatty() is
Standard output is the file object sys.stdout.
> So, really, what is the meaning of "64" as the return from
It's a true value. That's all.
Fred L. Drake, Jr. <fdrake at acm.org>
PythonLabs at Zope Corporation