On 11/09/11 00:18, Richard D. Moores wrote:
So you open the file and from that point on treat it exactly like a
dictionary.
I'm still a bit shaky about dictionaries.
But you started the post with using a dictionary.
Shelve is just a dictionary that lives in a file instead of memory.
If you can put data into or read it out of a dictionary then you can do
the same with shelve.
The only complexity is you have to open the file before sing it and
close it when your done.
Much of what comes after that is beyond me.
Thanks for your encouragement Alan, but I'm still looking among my
Python books for a good exposition of shelve.
You probably won't find much in books because shelve has such a specific
purpose. As a result there isn't much to say about it
if you've already covered dictionaries.
It's a file based dictionary. So read up on dictionaries.
Then just use it.
There are a few limitations with shelve but for most normal
cases you can ignore that and just use it like any normal
dictionary.
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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