static-join-to-f-string (FLY002)

Derived from the flynt linter.

Fix is always available.

What it does

Checks for str.join calls that can be replaced with f-strings.

Why is this bad?

f-strings are more readable and generally preferred over str.join calls.

Example

" ".join((foo, bar))

Use instead:

f"{foo} {bar}"

References

• Python documentation: f-strings