> I've updated the patch with the comments from the review

Thanks William for your contribution, I commited your fix.

I just made a minor change on "if (cwd && use_bytes) {": you forgot to remove test now useless test on cwd, and I dropped { and } to make to short more readable (Note: the PEP 7 requires to put "}" and "else {" on two lines).

Ok, I just took 5 years to get Python 2 features in Python 3 :-)