[Python-Dev] Mixing float and Decimal -- thread reboot
Raymond Hettinger
raymond.hettinger at gmail.com
Mon Mar 22 20:36:18 CET 2010
One other thought.
The Decimal constructor should now accept floats as a possible input type.
Formerly, we separated that out to Decimal.from_float() because
decimals weren't interoperable with floats.
This will put decimal and float back on equal footing so that we have both:
float(some_decimal) # coerce to binary float
and
Decimal(some_float) # coerce to decimal float
That will also save us from odd idioms like:
d = some_float + Decimal(0) # coerce to decimal then apply context rounding
This also matches the behavior of other constructors:
int(some_float)
or
int(some_decimal)
or
str(some_float)
or
str(some_decimal)
Raymond
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