Upgrade Pydantic to v2.12.0 and remove hack for Python 3.13 (#26481)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

requirements/common.txt

@@ -13,7 +13,7 @@ protobuf # Required by LlamaTokenizer.
 fastapi[standard] >= 0.115.0 # Required by FastAPI's form models in the OpenAI API server's audio transcriptions endpoint.
 aiohttp
 openai >= 1.99.1  # For Responses API with reasoning content
-pydantic >= 2.11.7
+pydantic >= 2.12.0
 prometheus_client >= 0.18.0
 pillow  # Required for image processing
 prometheus-fastapi-instrumentator >= 7.0.0

requirements/nightly_torch_test.txt

@@ -44,4 +44,4 @@ numba == 0.61.2 # Required for N-gram speculative decoding
 numpy
 runai-model-streamer[s3,gcs]==0.14.0
 fastsafetensors>=0.1.10
-pydantic>=2.10 # 2.9 leads to error on python 3.10
+pydantic>=2.12 # 2.11 leads to error on python 3.13

requirements/test.in

@@ -52,7 +52,7 @@ numba == 0.61.2 # Required for N-gram speculative decoding
 numpy
 runai-model-streamer[s3,gcs]==0.14.0
 fastsafetensors>=0.1.10
-pydantic>=2.10 # 2.9 leads to error on python 3.10
+pydantic>=2.12 # 2.11 leads to error on python 3.13
 decord==0.6.0
 terratorch @ git+https://github.com/IBM/terratorch.git@1.1.rc3 # required for PrithviMAE test
 gpt-oss >= 0.0.7; python_version > '3.11'
\ No newline at end of file

requirements/test.txt

@@ -783,7 +783,7 @@ pycparser==2.22
     # via cffi
 pycryptodomex==3.22.0
     # via blobfile
-pydantic==2.11.7
+pydantic==2.12.0
     # via
     #   -r requirements/test.in
     #   albumentations
@@ -797,7 +797,7 @@ pydantic==2.11.7
     #   openai-harmony
     #   pydantic-extra-types
     #   ray
-pydantic-core==2.33.2
+pydantic-core==2.41.1
     # via pydantic
 pydantic-extra-types==2.10.5
     # via mistral-common
@@ -1224,7 +1224,7 @@ types-python-dateutil==2.9.0.20241206
     # via arrow
 typeshed-client==2.8.2
     # via jsonargparse
-typing-extensions==4.12.2
+typing-extensions==4.15.0
     # via
     #   aiosignal
     #   albumentations
@@ -1253,7 +1253,7 @@ typing-extensions==4.12.2
     #   typer
     #   typeshed-client
     #   typing-inspection
-typing-inspection==0.4.1
+typing-inspection==0.4.2
     # via pydantic
 tzdata==2024.2
     # via pandas

vllm/config/utils.py

@@ -111,17 +111,7 @@ def get_attr_docs(cls: type[Any]) -> dict[str, str]:
     https://davidism.com/mit-license/
     """
 
-    try:
-        cls_node = ast.parse(textwrap.dedent(inspect.getsource(cls))).body[0]
-    except (OSError, KeyError, TypeError):
-        # HACK: Python 3.13+ workaround - set missing __firstlineno__
-        # Workaround can be removed after we upgrade to pydantic==2.12.0
-        with open(inspect.getfile(cls)) as f:
-            for i, line in enumerate(f):
-                if f"class {cls.__name__}" in line and ":" in line:
-                    cls.__firstlineno__ = i + 1
-                    break
-        cls_node = ast.parse(textwrap.dedent(inspect.getsource(cls))).body[0]
+    cls_node = ast.parse(textwrap.dedent(inspect.getsource(cls))).body[0]
 
     if not isinstance(cls_node, ast.ClassDef):
         raise TypeError("Given object was not a class.")