Raymond Hettinger <[email protected]> added the comment:
I don't think this is a door we should open:
>>> Fraction(3.5, 2.5)
Fraction(7, 5)
This currently raises a useful exception:
TypeError: both arguments should be Rational instances
That is especially helpful in avoiding cases like this:
>>> Fraction(1.1, 3.3)
Fraction(2476979795053773, 7430939385161318)
If that output is desired, the two conversions should be explicit.
>>> Fraction(1.1) / Fraction(3.3)
Fraction(2476979795053773, 7430939385161318
I recommend rejecting this feature request as being more likely to be hazardous
than helpful.
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<https://bugs.python.org/issue37836>
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