On 10/18/2014 02:36 PM, George R Goffe wrote:
> Hi,
>
> When you run a python program, it appears that stdin, stdout, and stderr are
> opened automatically.
>
> I've been trying to find out how you tell if there's data in stdin (like when
> you pipe data to a python program) rather
> than in a
Hi,
Wow. Lots of feedback. REALLY GOOD FEEDBACK!
This was my first question to this list. Let me clarify my question.
I want to use tst.py as follows:
tst.py input-file output-file OR
cat data-file | tst.py - output-file OR
cat data-file | tst.py output-file
tst.py input-file output-file works
* Peter Otten <__pete...@web.de> [2014-10-19 10:05]:
> George R Goffe wrote:
>
> > When you run a python program, it appears that stdin, stdout, and stderr
> > are opened automatically.
> >
> > I've been trying to find out how you tell if there's data in stdin (like
> > when you pipe data to a py
On 18/10/14 19:36, George R Goffe wrote:
When you run a python program, it appears that stdin, stdout, and stderr are
opened automatically.
correct.
I've been trying to find out how you tell if there's data in stdin
Same way you tell if there's data in any file/stream - you read
from it.
George R Goffe wrote:
> When you run a python program, it appears that stdin, stdout, and stderr
> are opened automatically.
>
> I've been trying to find out how you tell if there's data in stdin (like
> when you pipe data to a python program) rather than in a named input file.
> It seems like mo
On Sat, Oct 18, 2014 at 11:36:43AM -0700, George R Goffe wrote:
> Hi,
>
> When you run a python program, it appears that stdin, stdout, and
> stderr are opened automatically.
>
> I've been trying to find out how you tell if there's data in stdin
> (like when you pipe data to a python program) r
Are you planning to pipe data to a python program? If so please
specify and you will get more complete answers.
Specifically I am thinking you want information pertaining to
subprocess in the standard library.
https://docs.python.org/3/library/subprocess.html
On Sat, Oct 18, 2014 at 2:36 PM, Georg
George R Goffe writes:
> When you run a python program, it appears that stdin, stdout, and
> stderr are opened automatically.
That's true of any program on a POSIX-compliant operating system.
> I've been trying to find out how you tell if there's data in stdin
> (like when you pipe data to a py
Hi,
When you run a python program, it appears that stdin, stdout, and stderr are
opened automatically.
I've been trying to find out how you tell if there's data in stdin (like when
you pipe data to a python program) rather
than in a named input file. It seems like most/all the Unix/Linux
comm
