[Catalog-sig] Initial requirements

[Robin Dunn]

>
> Not covered in these initial requirements: checking for updated
> versions, tracking dependencies.  These seem to be difficult problems
> that require a database of Python packages installed on a system.
>

As long as it's some client-side tool (command line or GUI) doing #1 and #2
and not just some web-based interface, and as long as all the package
meta-data is easily fetchable, then the tool should be able to manage this
without too much problem.  It can keep track of what it has installed and
compare with the meta-data for currently available packages.

--
Robin Dunn
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robin@AllDunn.com
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