On 2019-07-27 18:49, 'Mark Bell' via sage-devel wrote:
During Sage Days 100, I experienced an issue with Sage's Integers and Rational not being compatible with Python's built in Fraction class. This made me unable to run my Python code within Sage
It would be good to explain better exactly what kind of code you were running and why this is an issue for you.
I mentioned this issue to the Python devs and Guido van Rossum basically rejected the problem. He literally said "what real-world problem does that solve?" when talking about letting Python fractions interoperate with Sage fractions, see https://discuss.python.org/t/pep-3141-ratio-instead-of-numerator-denominator/2037/27?u=jdemeyer
If this would be a simple bugfix, I would dismiss Guido's comment as irrelevant. But in this case, there is no easy fix. Every proposed fix is somewhat backwards incompatible and can potentially break stuff. So we should only apply a fix if it will actually solve a real problem that people are encountering.
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