Mark Dickinson <dicki...@gmail.com> added the comment:
So if I'm understanding correctly, the cause of the issue is that the value `1.7**(i+1)` computed in the last iteration (i=999) of the list comprehension doesn't exactly match the `-1.7**1000` value, because the former is computed at runtime using the libm's pow, while the latter is constant-folded and likely uses something more accurate than `pow`. I think it should be easy to rewrite the test so that it precomputes the powers of `1.7`, and then makes sure to use those computed values (i.e., so that we're only computing `1.7**1000` once rather than twice, eliminating the possibility of getting different results). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38992> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
