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Fri Jul 13 05:41:40 EDT 2018 · https://mail.python.org/pipermail/python-dev/2018-July/154626.html

On Donnerstag, 12. Juli 2018 22:09:41 CEST Antoine Pitrou wrote:
> On Thu, 12 Jul 2018 22:03:30 +0200
> 
> André Malo <nd at perlig.de> wrote:
> > * INADA Naoki wrote:
> > > Is there any real application which marshal.dumps() performance is
> > > critical?
> > 
> > I'm using it for spooling big chunks of data on disk, exactly for the
> > reason that it's faster than pickle.
> 
> Which kind of data is that?

Basically iterators of builtin objects (dicts or tuples of strings or 
numbers). Typically one unit or "row" per dumps() call (they are written one 
after the next and marshal load can easily load them in the same manner).
They're certainly never the same objects (except maybe for dict keys, which 
might be interned)

Cheers,
nd

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[Python-Dev] Can I make marshal.dumps() slower but stabler?