Bug report

Python 3.11b1 raises with the following given path.rglob("") where path is a pathlib.Path. This worked in previous versions (and also in whichever previous alphas GitHub Actions used).

 def rglob(self, pattern): """Recursively yield all existing files (of any kind, including  directories) matching the given relative pattern, anywhere in  this subtree.  """ sys.audit("pathlib.Path.rglob", self, pattern) drv, root, pattern_parts = self._flavour.parse_parts((pattern,)) if drv or root: raise NotImplementedError("Non-relative patterns are unsupported") > if pattern[-1] in (self._flavour.sep, self._flavour.altsep): E IndexError: string index out of range

rglob is documented as

This is like calling Path.glob() with “**/” added in front of the given relative pattern

so I think "" is a valid input to rglob().

Pretty sure this was introduced in ea2f5bc/#10349.

Your environment

• CPython versions tested on: 3.11b1
• Operating system and architecture: Both Linux and Windows.

Cross-ref: pytest-dev/pytest#9930