command line arguments processing: an ugly lpr wrapper

[Ben Hutchings]

In article <b535r7$s2f$1 at bob.news.rcn.net>, morden wrote:
<snip>
> os.execv("/usr/bin/lpr", new_arg)
> 
> # should I exit(os.execv("/usr/bin/lpr", new_arg)) instead?
<snip>

No.  The exec family of functions *replaces* your program with the
one you specify.  They never return successfully, and in Python,
they raise an exception when they fail.