Can't think of a good reason now on why I would need this rather than just a simple f-string.
Any unsafe string input should normally be sanitized before being added in a template/concatenation, leaving the sanitization in the end doesn't seem like the best approach, but ok.
One of the PEP's developers, Lysandros, presented this in our local meetup, so I am passingly familiar with it, but still, I might be missing something.
I guess the crux of it is that I don't understand why it's `t"some string"` instead of `Template("some string")`. What do we gain by the shorthand?
With templates:
mysql.execute(t"DELETE FROM table WHERE id={id} AND param1={param1}")
mysql.execute("DELETE FROM table WHERE id=%s AND param1=%s", [id, param1])
But yeah it does seem a bit confusing, and maybe kinda not pythonic? Not sure.
Because it's new syntax, it allows for parsing the literal ahead of time and eagerly evaluating the substitutions. Code like
bar = 42
spam = t"foo {bar*bar} baz"
bar = 42
spam = Template("foo ", Interpolation(bar*bar), " baz")