Can we make that the standard and get rid of the ugly str.format(UGLINESS) syntax.
Yes please, and thank you
Can we make that the standard and get rid of the ugly str.format(UGLINESS) syntax.
Yes please, and thank you
But otherwise, yes - make f-strings the “one obvious way to do it” and use `format` only when necessary. And get rid of the old %-formatting.
Also consider making f-strings the default: https://pyfound.blogspot.com/2020/04/all-strings-become-f-st...
`format` is still useful, particularly when working with pre-templatized strings. It's also a (relatively) new feature; Python 2 didn't have it at all.
OTOH, I wouldn't cry if Python 3.X finally removed %-formatting. `format` does everything that `%` does, with a much nicer API (especially in 3.7+).
f-strings work well in simple cases. But once the things you want to output are somewhat larger expressions, format() works much better.
Example: instead of something like
print(f'{id:<5} | {", ".join(members}:<50} | {", ".join(str(score) for score in scores):<30}')
This is much clearer IMO: print('{:<5} | {:<50} | {:<30}'.format(
id,
", ".join(members),
", ".join(str(score) for score in scores),
))
Actually, what do you mean by "ugly" and "UGLINESS" in "the ugly str.format(UGLINESS) syntax"? The UGLINESS are simply the things you want to format. Ugly is in the of the beholder of course; personally I don't really see anything ugly about format. The f-string equivalent here is much uglier and much less clear/readable to me, because the formatting and the expressions are mixed and parsing the whole thing to see what is what is more effort than it should be. all_members = ", ".join(members)
all_scores = ", ".join(map(str, scores))
print(f'{id:<5} {all_members:<50} {all_scores:<30}')No, please.
F-strings are useful for some things, but there's a good reason. to define templates other than deep in code for ease of editing them distinct from functionality (often, completely externally to code) and using str.format supports that.
If anything, I'd prefer r-strinfs as the default with both escape handling and formatting non-default options, but the status quo is acceptable and better than r-strings as the base.
Everytime someone uses %args inappropriately a baby seal dies.