Unit tests: make set_module_args() a context manager, and remove copies of it in some tests (#9838)
Make set_module_args() a context manager, and remove copies of set_module_args().
Prepares for Data Tagging.
(cherry picked from commit a1781d09dd)
Co-authored-by: Felix Fontein <felix@fontein.de>
use open() as context manager (#9579)
* use open() as context manager
* add changelog frag
(cherry picked from commit 0de39a6f47)
Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>