[issue2898] Add memory footprint query

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

The patch looks fine to me, please apply. Don't forget to add a
Misc/NEWS entry.

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assignee: gvanrossum -> schuppenies
resolution:  -> accepted

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<http://bugs.python.org/issue2898>
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