[issue42484] get_obs_local_part fails to handle empty local part

Change by Zackery Spytz : -- keywords: +patch nosy: +ZackerySpytz nosy_count: 3.0 -> 4.0 pull_requests: +23455 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24669 ___ Python tracker

[issue42484] get_obs_local_part fails to handle empty local part

R. David Murray added the comment: Yep, you've found another in a category of bugs that have shown up in the parser: places where there is a missing check for there being any value at all before checking character [0]. In this case, the fix should be to add if not obs_local_part: