naturaldelta with negative seconds loses precision and doesn't match naturaltime

[Dapid]

What did you do?

I passed a small negative integer value to naturaldelta, it reports "a day".

What did you expect to happen?

I expect naturaldelta to roughly match naturaltime. Else, if negative values are not supported, it should be documented.

What actually happened?

import humanize

print(humanize.naturaldelta(-1))
print(humanize.naturaltime(-1))

shows:

a day
a second ago

What versions are you using?

• OS: Linux LCARS2 5.17.4-200.fc35.x86_64 #1 SMP PREEMPT Wed Apr 20 15:37:53 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
• Python: 3.9.12
• Humanize: 4.1.0

[carterbox]

>>> dt.timedelta(seconds=-1)
datetime.timedelta(days=-1, seconds=86399)
>>> dt.timedelta(seconds=1)
datetime.timedelta(seconds=1)

I also didn't expect this behavior, but humanize.naturaldelta() matches the behavior of datetime.timedelta(). Or rather it's caused by the behavior of datetime.timedelta()? The question is whether it's correct to humanize "-1 days and 86k seconds" to "a day (ago)".

[carterbox]

One solution could be to call abs() on the value parameter since a delta is neither negative or positive. abs() also works on dt.timedeltas.