pmcc.py bug?

[Mark Goodwin <mgoodwin@xxxxxxxxxx>]

pmcc doesn't seem to update it's metric values after each fetch beyond
the first, but I may be calling it incorrectly. Here's a simple program
demonstrating the issue, and a simple patch to pmcc.py that fixes it
(but introduces a memory leak?). So is this a bug or am I not using pmcc
correctly?  Thanks for any help ... Mark.

test-counters-pmcc.py
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pmcc.patch
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