EWS code is python 3 only. If run on python 2, it print an error asking to use Python 3 and exits immediately. So, we can start using some of the nice features which are Python 3 only, f-string being one of them. We should convert strings in ews code to f-strings. Since there are lot of them, part 1 will deal with unit-tests.
Pull request: https://github.com/WebKit/WebKit/pull/166
Landed https://commits.webkit.org/247681@main (r290363)!
<rdar://problem/89348101>