[Numpy-discussion] memmap capability

Tom Kuiper kuiper@jpl.nasa....
Fri Aug 7 13:05:14 CDT 2009


If this appears twice, forgive me.  I sent it previously (7:13 am PDT) 
via a browser interface to JPL's Office Outlook.  I have doubts about 
this system.  This time, from Iceweasel through our SMTP server.

There are two things I'd like to do using memmap.  I suspect that they 
are impossible but maybe I'm missing some subtlety.
1) I would like to append rows to a memmap array and have the modified 
array changed on disk also.
2) I would like to have the memory view of the array on disk change, 
i.e., modify the offset for an opened array.
The only way I can think of involves opening and closing arrays repeatedly.

Regards

Tom Kuiper


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