fix number_of_digits bug (#2301)
* fix bug
* test larger negative
* fixup! Format Python code with psf/black push
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> D
Du Yuanchao committed
d687030d9e582534c850493ebc8a22fb4cf1ec81
Parent: aa46639
Committed by GitHub <noreply@github.com>
on 8/12/2020, 4:32:35 PM