Best way to share a python list of objects

Tim Arnold tiarno at sas.com
Tue Oct 11 19:14:01 CEST 2005


"Magnus Lycka" <lycka at carmen.se> wrote in message 
news:digjql$j4s$1 at wake.carmen.se...
> kyle.tk wrote:
>> So I have a central list of python objects that I want to be able to
>> share between different process that are possibly on different
>> computers on the network. Some of the processes will add objects to
>> list and another process will be a GUI that will view objects in the
>> list. I want this all to happen in real-time (e.g once a processes adds
>> an object to the list the GUI will see it.)
>>
>> What would be the best way to accomplish this. Some of my ideas:
>> - An XML file r/w-able by all processes
>> - Send pickled objects between all processes and each keeps it own list
>> locally
>> - A ascii type protocol akin to ftp the hands out all the info to the
>> processes
>>
>> Any other ideas? What would work the best
>
> Relational database are useful for sharing data in a controlled way.
> A better option for arbirary Python objects might be ZODB with ZEO.
>
> http://www.zope.org/Wikis/ZODB/FrontPage
> http://www.zope.org/Wikis/ZODB/FrontPage/guide/index.html

Another one to consider is wddx, quite useful if you need to share data 
between different languages.

--Tim





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