Bug report

Bug description:

test_truediv hasthe following check:

# Just for fun.foriinrange(100):self.check_div(complex(random(),random()),complex(random(),random()))

wherecheck_div(x, y) checks that(x * y) / y is"close" tox.

This recentlyfailed onAMD64 Arch Linux Usan Function with:

./python -m test test_complex -m test_truediv --randseed 1627284292

It fails with1e-09 for the first random number and1 for the rest.

Looks like a test bug but it might be better if a float/complex expert takes a look around here.@skirpichev, is this interesting for you?

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-144173: fix flaky test_complex.test_truediv() #144355