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f-strings: --aggressive mode to rewrite more than basic names

See original GitHub issue

This line is not upgraded:

text = 'TIME {}: {:f} '.format(label, time.time() - t)

Issue Analytics

State:
Created 5 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

alokcommented, Jun 7, 2018

One possibility would be to add something like an --aggressive flag that unconditionally replaces .format with f-strings, and then users could decide which ones to check in to version control. You could also make it interactive, sort of like isort, but I dunno if that’s worth it.

0reactions

asottilecommented, Jun 7, 2018

I don’t really have any interest in investing time in implementing an interactive mode – pyupgrade is designed to work as a pre-commit hook which is entirely non-interactive.

I’m also unlikely to spend a bunch of time on something I personally wouldn’t use (for instance, I don’t really think much more than a simple name or index belongs in a f-string) – that said, if you want to work on a tested implementation that adds something like an --aggressive-fstrings option, then by all means 😃

I don’t really want to tie down the --pyXX-plus options to levels either, presumably there’s changes that could be made for py36 that are unrelated to fstrings. (and does (hypothetical) --py38-plus=aggressive imply it should more aggressively modify fstrings? probably not)

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