Use pydantic's ConfigDict for config; filter litellm warnings (stanfordnlp#8659)

Author: kurtmckee

dspy/adapters/types/audio.py

@@ -21,10 +21,10 @@ class Audio(Type):
     data: str
     audio_format: str
 
-    model_config = {
-        "frozen": True,
-        "extra": "forbid",
-    }
+    model_config = pydantic.ConfigDict(
+        frozen=True,
+        extra="forbid",
+    )
 
     def format(self) -> list[dict[str, Any]]:
         try:

dspy/adapters/types/history.py

@@ -60,9 +60,9 @@ class MySignature(dspy.Signature):
 
     messages: list[dict[str, Any]]
 
-    model_config = {
-        "frozen": True,
-        "str_strip_whitespace": True,
-        "validate_assignment": True,
-        "extra": "forbid",
-    }
+    model_config = pydantic.ConfigDict(
+        frozen=True,
+        str_strip_whitespace=True,
+        validate_assignment=True,
+        extra="forbid",
+    )

dspy/adapters/types/image.py

@@ -21,12 +21,12 @@
 class Image(Type):
     url: str
 
-    model_config = {
-        "frozen": True,
-        "str_strip_whitespace": True,
-        "validate_assignment": True,
-        "extra": "forbid",
-    }
+    model_config = pydantic.ConfigDict(
+        frozen=True,
+        str_strip_whitespace=True,
+        validate_assignment=True,
+        extra="forbid",
+    )
 
     def format(self) -> list[dict[str, Any]] | str:
         try:

pyproject.toml

@@ -112,6 +112,14 @@ exclude_lines = [
     "continue",
 ]
 
+[tool.pytest.ini_options]
+filterwarnings = [
+    # litellm uses deprecated pydantic config classes sometimes.
+    # The issue has been fixed repeatedly, but still keeps showing up.
+    # For examples, see litellm PRs #6903, #7300, #8096, #9372, and #12528.
+    "ignore:.+class-based `config` is deprecated, use ConfigDict:DeprecationWarning",
+]
+
 [tool.ruff]
 include = ["dspy/**/*.py", "tests/**/*.py"]
 exclude = [