Vermin assumes byte union to be a type union

Describe the bug

The following line is assumed to be a type union (3.10) by vermin:

if (global_byte | local_byte) != global_byte:

To Reproduce Found while scanning the kafl.fuzzer project with vermin.

$ vermin -vvv kafl_fuzzer | grep 3.10
!2, 3.10     /home/mtarral/kAFL/kafl/fuzzer/kafl_fuzzer/manager/bitmap.py
  L93: union types as `X | Y` requires !2, 3.10
Minimum required versions: 3.10

You can check the “faulty” line

Expected behavior This shouldn’t be flagged as a union type (and shouldn’t require 3.10, since our software runs fine on 3.8)

Environment (please complete the following information):

• Vermin version: 1.4.2 (pip)

Thanks for vermin !

[Wenzel]

Yes, I confirm it works on my side !

Thank you very much 🙏

[netromdk]

Hi! It’s in a branch right now. I was able to reproduce and fix it.

You can try it out: issue-103