shelve in a ZipFile?

Terry Hancock hancock at anansispaceworks.com
Sat Jul 2 23:23:06 CEST 2005


On Friday 01 July 2005 04:40 pm, Andreas Kostyrka wrote:
> It's even worse: shelve is basically a class that wraps a dictionary. It
> provides a dictionary string -> pickable object based on a dictioary
> string -> string. bsddb, gdbm etc. probably access files via lowlevel
> calls that are not interceptable. 
> 
> One way to achieve your goals would be to add compression and/or a key
> prefix (which would allow multiple dictionaries or at least key spaces
> in one file)

Yeah, I'm already using a character prefix for header data in the
1st file. Right now, one of the headers tells where to find the 2nd file.

Seems to be working okay.

I'm a little bothered by the idea of lumping both into one dictionary,
though I see this could be done the same way. 

I wasn't really looking for a way to compress the data (just thought it
was a nice side benefit), but your post reminded me that I could do
it with zlib on the data *before* storing them in the shelf.  I guess if
bulk becomes an issue I'll try that.

--
Terry Hancock ( hancock at anansispaceworks.com )
Anansi Spaceworks  http://www.anansispaceworks.com




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