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Sat Sep 30 21:53:33 CEST 2006 · https://mail.python.org/pipermail/python-dev/2006-September/069089.html

"Nick Coghlan" <ncoghlan at gmail.com> wrote in message 
news:451E31ED.7030905 at gmail.com...
>I suspect the problem would typically stem from floating point values that 
>are
>read in from a human-readable file rather than being the result of a
>'calculation' as such:

For such situations, one could create a translation dict for both common 
float values and for non-numeric missing value indicators.  For instance,
flotran = {'*': None, '1.0':1.0, '2.0':2.0, '4.0':4.0}
The details, of course, depend on the specific case.

tjr

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