On 2008-06-04 01:33, Guillermo wrote:
These are the basic requirements:
Script A must keep a dictionary in memory constantly and script B must
be able to access and update this dictionary at any time. Script B
will start and end several times, but script A would ideally keep
running until it's explicitly shut down.
I have the feeling the way to do this is Python is by pickling the
dict, but I need the method that gives the best performance. That's
why I'd rather want to keep it in memory, since I understand pickling
involves reading from and writing to disk.
I'm using SQLite as a database. But this dict is an especial index
that must be accessed at the highest speed possible.
If you're on Unix, it's easiest to have script A implement a
signal handler. Whenever it receives a signal, it rereads the
pickled dict from the disk. Script B then writes a new revision
of the dict and sends the signal to script A.
Alternatively, you could use an on-disk dictionary like e.g.
mxBeeBase:
https://www.egenix.com/products/python/mxBase/mxBeeBase/
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