system exec ?

Martin Sjögren martin at strakt.com
Thu Jul 5 16:59:47 CEST 2001


On Thu, Jul 05, 2001 at 02:32:12PM +0200, Alex Martelli wrote:
> "alphaZeta" <NOSPAM.hnguyen421 at NOSPAM.hotmail.com> wrote in message
> news:9i1npl$160$1 at news.businessobjects.com...
> >
> > Thanks, I was also planning to use the readlines() method.
>     ...
> > > a = os.popen("ls -l").read()
> > >
> > > may be what you want (but you may also prefer to call .readlines()
> 
> That's good in most cases, just one further thing: if there
> is the possibility that the output of the command is vaster
> than will comfortably fit in memory, you may want to import
> xreadlines and rather than storing said output in your
> memory all at one loop over it line by line:

It is at these times you really wish you had lazy evaluation, like in
Haskell :) I miss Haskell...

Martin

-- 
Martin Sjögren
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