Update pydantic to 2.11+, address DeprecationWarnings (#487)

### What kind of change does this PR introduce?

* Raises the minimum version of `pydantic` to v2.11
* Addresses ~6500 `DeprecationWarning`s emitted from `pydantic`

### Does this PR introduce a breaking change?

Not really. Newer `pydantic` has been added as a dependency.

Author: Zeitsperre

CHANGELOG.rst

@@ -12,6 +12,7 @@ New features
 Internal changes
 ^^^^^^^^^^^^^^^^
 * `pydap` has been pinned below v3.5.5 temporarily until `xarray` offers support for it. (PR #486).
+* More than 7500 DeprecationWarnings emitted during the testing suite have been addressed. Minimum supported `pydantic` has been raised to v2.11. (PR #487).
 
 v0.18.0 (2025-04-03)
 --------------------

environment-dev.yml

@@ -23,7 +23,7 @@ dependencies:
   - pandas >=2.2.0
   - pint >=0.24.4
   - platformdirs >=4.3.6
-  - pydantic >=2.0
+  - pydantic >=2.11
   - pydap >=3.4.0,<3.5.5  # pydap 3.5.5 is not currently supported by `xarray` (v2025.3.1)
   - pymetalink >=6.5.2
   - pymbolic >=2024.2

environment-docs.yml

@@ -31,7 +31,7 @@ dependencies:
   - netCDF4 >=1.7.2
   - numpy >=1.24.0
   - notebook
-  - pydantic >=2.0
+  - pydantic >=2.11
   - pymetalink >=6.5.2
   - s3fs
   - salib

pyproject.toml

@@ -49,7 +49,7 @@ dependencies = [
   "pandas >=2.2.0",
   "pint >=0.24.4",
   "platformdirs >=4.3.6",
-  "pydantic >=2.0",
+  "pydantic >=2.11",
   "pydap >=3.4.0,<3.5.5", # pydap 3.5.5 is not currently supported by `xarray` (v2025.3.1)
   "pymbolic >=2024.2",
   "scipy >=1.11.0",

src/ravenpy/config/base.py

@@ -144,7 +144,8 @@ def __subcommands__(self) -> tuple[dict[str, str], list]:
         """Return dictionary of class attributes that are Raven models."""
         cmds = {}
         recs = []
-        for key, field in self.model_fields.items():
+        cls = self.__class__
+        for key, field in cls.model_fields.items():
             obj = self.__dict__[key]
             if obj is not None:
                 if issubclass(obj.__class__, _Record):
@@ -225,8 +226,9 @@ class LineCommand(FlatCommand):
     """
 
     def to_rv(self):
-        out = [f":{self.__class__.__name__:<20}"]
-        for field in self.model_fields.keys():
+        cls = self.__class__
+        out = [f":{cls.__name__:<20}"]
+        for field in cls.model_fields.keys():
             out.append(str(getattr(self, field)))  # noqa: PERF401
 
         return " ".join(out) + "\n"

tests/test_rvs.py

@@ -18,7 +18,7 @@ class Test(RV):
         a: bool = optfield(alias="a")
 
     t = Test()
-    assert not t.model_fields["a"].is_required()
+    assert not t.__class__.model_fields["a"].is_required()
 
 
 def test_rvi_datetime():