`[RUF055]` False positive for `re.split` with empty string pattern

[harupy]

Summary

re.split("", s) is flagged by RUF055 and fixed to s.split(""), but str.split raises ValueError: empty separator for empty separators while re.split succeeds:

import re

s = "abc"
re.split("", s)   # ['', 'a', 'b', 'c', '']
s.split("")        # ValueError: empty separator

Version

f1a9a70

Potential fix

Add a guard to skip if the separator is an empty string.

[ntBre]

Thank you!