I am using black==20.8b1.
I have a long string like:
return f"{self.name}, a {adjective.to_name()} {kin_string}{self._type.to_name()} who works for the {target.get_relationship_target_string()}."
I run:
$ black -l 80 . -t py38
All done! ✨ ✨
2 files left unchanged.
Why is the string not wrapped? I thought that black supports wrapping strings now (based on issues in github).
Currently we have to add --experimental-string-processing tag to it. I think in future versions it will be made default.
black -l 80 --preview file.py
Currently, Black doesn't wrap long strings or long comments. You can see an open issue in their project GitHub saying:
Black currently doesn't wrap long string literals or merge string literals that happen to be on the same line. [...] It would require modifying the AST which isn't 100% safe and has a bunch of edge cases to be dealt with.