I want the mantissa and decimal exponent of a float, in base 10:

mantissa and exponent of 1.2345e7 
=> (1.2345, 7)

(0.12345, 8) would also be acceptable.


The math module has a frexp() function, but it produces a base-2 exponent:

>>> math.frexp(1.2345e7)
(0.73581933975219727, 24)

Have I missed a built-in or math function somewhere?



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Steven
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