The following 3 snippets are the equivalent, though Path("") is not detected:

from pathlib import Path

Path()     # correct code
Path("")   # no error
Path(".")  # PTH201

Ruff output:

$ ruff x.py
x.py:5:6: PTH201 [*] Do not pass the current directory explicitly to `Path`

Expected output:

Ruff should emit an error for Path(""). This is a fairly common idiom according to grep.app, and is currently detected in Refurb.