asyncio.sleep(float('nan')) does not raise ValueError #105331
Description
Bug report
time.sleep(float('nan')) raises ValueError, but asyncio.sleep(float('nan')) is valid and sleeps for 0. This seems bad, and asyncio.sleep should probably also raise ValueError.
import asyncio
import time
try:
time.sleep(float('nan'))
except ValueError:
print("time.sleep raised ValueError")
async def foo() -> None:
await asyncio.sleep(float('nan'))
print("asyncio.sleep does not raise any error")
asyncio.run(foo())$ python foo.py
time.sleep raised ValueError
asyncio.sleep does not raise any errortime.sleep and asyncio.sleep do differ in behaviour when it comes to negative numbers and changing that behaviour was considered a breaking change without strong reason: #83879
nan feels like it should very rare to be passed intentionally, but the potential gain might also be small enough that this isn't worth fixing.
Related: python-trio/trio#2493
Your environment
- CPython versions tested on: 3.8 to 3.11
- Operating system and architecture:
Linux 6.3.4-arch1-1