qa/1423: add filtering to deal with Python non-determinism
qa/1423: add filtering to deal with Python non-determinism

Digits of precision this time for floating point numbers.

As an aside, any PCP tool that reports ANYTHING like 781261.9379999996
is self-delusional ... in systems performance land we're working in a
real world where numerical accuracy is somewhere between 1% and 10%.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp