piping into a python script

[Donn Ingle]

Paddy wrote:
> ls *.a | ./fui.py -f - *.b
To be sure I grok this: I am seeing the single dash as a placeholder for
where all the piped filenames will go, so *.b happens after *.a has been
expanded and they all get fed to -f, right?

I'm also guessing you mean that I should detect the single dash and then go
look for stdin at that point. How do I detect a lack of stdin?

Thanks,
\d