f9df046436
In Python 3 (the only python we support) `io.open` is an alias of the builtin `open` function, so it's not getting us anything, and we're not using it consistently. Reviewed-by: Luis Felipe Strano Moraes <luis.strano@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19449>