On Sat, Sep 5, 2020 at 7:26 PM Greg Ewing firstname.lastname@example.org wrote:
On 6/09/20 8:08 am, David Mertz wrote:
The only real goal I've seen is that you hope that `x == eval(repr(x))` for floating point numbers. But that is doomed to failure since it cannot work for NaN by its very definition.
I think that just means the definition needs a bit more finesse. It would be a reasonable goal for it to give back *some* NaN with the same flags and payload as the original.
Sure, but we have that already:
from math import inf, nan eval(repr([42, nan, inf]))
[42, nan, inf]
The only difference is the `math` namespace vs `builtins` namespace.