Alan Gauld schreef:
"Timo" <[email protected]> wrote
I have an issue with the Shelve module. It works great for my needs,
the only problem is that a file made with Shelve isn't interchangable
between different computers.
I thought it would be.
What kind of computers are you having issues with?
And what kind of issues?
Currently only tested between Ubuntu and Windows on the same computer.
This is the end of the traceback:
bsddb.db.DBInvalidArgError: (22, 'Invalid argument --
</path/to/shelvefile>: unsupported hash version: 9')
Does someone have an alternative to Shelve?
It must be able to contain keys and values, and the values are a list
of dictionaries.
A SqlLite database?
With record where the fields correspond to your dictionary entries.
ID:Date:Location
1234567 = [{'date' : '2009-05-11', 'location' : 'Germany'}, {'date' :
'2009-05-04', 'location' : 'France'}]
7654321 = [{'date' : '2009-03-12', 'location' : 'Belgium'}, {'date' :
'2009-04-23', 'location' : 'Spain'}]
populating your dictionary becomes a matter of extracting the data:
SELECT DATE, LOCATION FROM DATA WHERE ID = key
SQLite has the advantage that the atabase is a single file and
it is portable across platforms provided they have Sqlite installed.
And its part of the Python standard library.
Examples of using Sqlite in the databases topic of my tutorial.
Thank you. I will check the tutorial.
Timo
HTH,
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