ci: updates for Rust 1.91, pin rumdl (#5576)

* ci: updates for Rust 1.91

* ci: fix fmt

* ci: pin rumdl

* fix `ruff` version inference

---------

Co-authored-by: Christoph Reiter <[email protected]>

Author: davidhewitt

guide/src/class/protocols.md

@@ -133,6 +133,7 @@ The given signatures should be interpreted as follows:
 
 - `__getattr__(<self>, object) -> object`
 - `__getattribute__(<self>, object) -> object`
+
     <details>
     <summary>Differences between `__getattr__` and `__getattribute__`</summary>
     As in Python, `__getattr__` is only called if the attribute is not found

noxfile.py

@@ -202,14 +202,15 @@ def ruff(session: nox.Session):
     _run(session, "ruff", "check", ".")
 
 
-@nox.session(name="rumdl")
+@nox.session(name="rumdl", venv_backend="none")
 def rumdl(session: nox.Session):
     """Run rumdl to check markdown formatting in the guide.
 
-    Can also run with uv directly, e.g. `uvx rumdl check guide`.
+    Can also run with uv directly, e.g. `uv run rumdl check guide`.
     """
-    session.install("rumdl")
-    _run(session, "rumdl", "check", "guide", *session.posargs)
+    _run(
+        session, "uv", "run", "rumdl", "check", "guide", *session.posargs, external=True
+    )
 
 
 @nox.session(name="clippy", venv_backend="none")

pyproject.toml

@@ -1,3 +1,14 @@
+[project]
+requires-python = ">=3.7"
+name = "pyo3"
+dynamic = ["version"]
+
+[tool.ruff.per-file-target-version]
+# experimental-inspect generates .pyi files that use positional-only `/` marker
+"*.pyi" = "py38"
+# uses `match` statement
+"pytests/tests/test_enums_match.py" = "py310"
+
 [tool.ruff.lint.extend-per-file-ignores]
 "__init__.py" = ["F403"]
 
@@ -53,3 +64,11 @@ tables = false
 headings = false
 reflow = true
 reflow_mode = "sentence-per-line"
+
+[tool.uv]
+package = false
+
+[dependency-groups]
+dev = [
+  "rumdl"
+]

tests/ui/invalid_pyfunction_argument.stderr

@@ -70,8 +70,13 @@ error[E0277]: `Foo` cannot be used as a Python function argument
   --> tests/ui/invalid_pyfunction_argument.rs:14:59
    |
 14 | fn skip_from_py_object_without_custom_from_py_object(arg: Foo) {
-   |                                                           ^^^ the trait `ExtractPyClassWithClone` is not implemented for `Foo`
+   |                                                           ^^^ unsatisfied trait bound
    |
+help: the trait `ExtractPyClassWithClone` is not implemented for `Foo`
+  --> tests/ui/invalid_pyfunction_argument.rs:11:1
+   |
+11 | struct Foo;
+   | ^^^^^^^^^^
    = note: implement `FromPyObject` to enable using `Foo` as a function argument
    = note: `Python<'py>` is also a valid argument type to pass the Python token into `#[pyfunction]`s and `#[pymethods]`
    = help: the following other types implement trait `PyFunctionArgument<'a, 'holder, 'py, IMPLEMENTS_FROMPYOBJECT>`:

tests/ui/invalid_pymethods.stderr

@@ -201,6 +201,11 @@ error[E0277]: the trait bound `NotATypeObject: From<BoundRef<'_, '_, PyType>>` i
   --> tests/ui/invalid_pymethods.rs:33:45
    |
 33 |     fn classmethod_wrong_first_argument(_t: NotATypeObject) -> Self {
-   |                                             ^^^^^^^^^^^^^^ the trait `From<BoundRef<'_, '_, PyType>>` is not implemented for `NotATypeObject`
+   |                                             ^^^^^^^^^^^^^^ unsatisfied trait bound
    |
+help: the trait `From<BoundRef<'_, '_, PyType>>` is not implemented for `NotATypeObject`
+  --> tests/ui/invalid_pymethods.rs:28:1
+   |
+28 | struct NotATypeObject;
+   | ^^^^^^^^^^^^^^^^^^^^^
    = note: required for `BoundRef<'_, '_, PyType>` to implement `Into<NotATypeObject>`

tests/ui/missing_intopy.stderr

@@ -2,8 +2,13 @@ error[E0277]: `Blah` cannot be converted to a Python object
  --> tests/ui/missing_intopy.rs:4:14
   |
 4 | fn blah() -> Blah {
-  |              ^^^^ the trait `IntoPyObject<'_>` is not implemented for `Blah`
+  |              ^^^^ unsatisfied trait bound
   |
+help: the trait `IntoPyObject<'_>` is not implemented for `Blah`
+ --> tests/ui/missing_intopy.rs:1:1
+  |
+1 | struct Blah;
+  | ^^^^^^^^^^^
   = note: `IntoPyObject` is automatically implemented by the `#[pyclass]` macro
   = note: if you do not wish to have a corresponding Python type, implement it manually
   = note: if you do not own `Blah` you can perform a manual conversion to one of the types in `pyo3::types::*`