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On 18/01/13 10:59, Andrew Robinson wrote:
> Hi,
>
> I have a problem which may fit in a mysql database, but which I only
> have python as an alternate tool to solve... so I'd like to hear some
> opinions...

Since you have a large dataset, you might want to use sqlite3
(http://docs.python.org/2.5/lib/module-sqlite3.html,
https://www.sqlite.org/), which comes in the standard library since
Python 2.5. SQLite is a self-contained, serverless, zero configuration,
transactional SQL database engine.

XML with a million entries are probably not a good idea due to its
verbosity; XML was designed for data interchange, not for complex
relational data processing.