pickle problem - frexp() out of range

[Ziga Seilnacht]

ahaldar wrote:
> Hi:
>
> I have some large data structure objects in memory, and when I attempt
> to pickle them, I get the following error:
>
> SystemError: frexp() out of range
>
> Are there some objects that are just too large to serialize, and if
> so, is there an easy workaround without breaking up the object and
> reconstructing it during deserialization?
>
> Here's the code I use to pickle the object:
>
> f = open(dir+file, "w+b")
> pickle.dump(structure, f, protocol=2) # throws error
> f.close()
>
> - abhra

You are probably trying to pickle Inf or NaN. This was fixed
in Python 2.5, see this revision:
http://svn.python.org/view?rev=38893&view=rev
and this patch:
http://www.python.org/sf/1181301

Ziga