Upgrade to Pydantic v2 (#775)

* Upgrade to Pydantic v2
* Stop testing against Pydantic v1

Closes #520

.github/workflows/test.yml

@@ -12,7 +12,6 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
-        pydantic: ["==1.10.2", ">=2.0.0"]
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
@@ -24,7 +23,6 @@ jobs:
     - name: Install dependencies
       run: |
         pip install -e '.[test]'
-        pip install 'pydantic${{ matrix.pydantic }}'
     - name: Run tests
       run: |
         pytest

llm/cli.py

@@ -1197,9 +1197,9 @@ def models_list(options, async_, query):
             model_with_aliases.model if not async_ else model_with_aliases.async_model
         )
         output = str(model) + extra
-        if options and model.Options.schema()["properties"]:
+        if options and model.Options.model_json_schema()["properties"]:
             output += "\n  Options:"
-            for name, field in model.Options.schema()["properties"].items():
+            for name, field in model.Options.model_json_schema()["properties"].items():
                 any_of = field.get("anyOf")
                 if any_of is None:
                     any_of = [{"type": field.get("type", "str")}]
@@ -1413,7 +1413,7 @@ def templates_show(name):
     template = load_template(name)
     click.echo(
         yaml.dump(
-            dict((k, v) for k, v in template.dict().items() if v is not None),
+            dict((k, v) for k, v in template.model_dump().items() if v is not None),
             indent=4,
             default_flow_style=False,
         )

llm/default_plugins/openai_models.py

@@ -13,14 +13,7 @@
 import openai
 import os
 
-try:
-    # Pydantic 2
-    from pydantic import field_validator, Field  # type: ignore
-
-except ImportError:
-    # Pydantic 1
-    from pydantic.fields import Field
-    from pydantic.class_validators import validator as field_validator  # type: ignore [no-redef]
+from pydantic import field_validator, Field
 
 from typing import AsyncGenerator, List, Iterable, Iterator, Optional, Union
 import json

llm/models.py

@@ -23,7 +23,7 @@
 from .utils import mimetype_from_path, mimetype_from_string, token_usage_string
 from abc import ABC, abstractmethod
 import json
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 from ulid import ULID
 
 CONVERSATION_NAME_LENGTH = 32
@@ -499,7 +499,6 @@ async def __anext__(self) -> str:
             return chunk
 
         if not hasattr(self, "_generator"):
-
             if isinstance(self.model, AsyncModel):
                 self._generator = self.model.execute(
                     self.prompt,
@@ -618,10 +617,7 @@ def __repr__(self):
 
 
 class Options(BaseModel):
-    # Note: using pydantic v1 style Configs,
-    # these are also compatible with pydantic v2
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 _Options = Options

llm/templates.py

@@ -1,4 +1,4 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 import string
 from typing import Optional, Any, Dict, List, Tuple
 
@@ -13,8 +13,7 @@ class Template(BaseModel):
     extract: Optional[bool] = None
     extract_last: Optional[bool] = None
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
     class MissingVariables(Exception):
         pass

pytest.ini

@@ -1,5 +1,2 @@
 [pytest]
-filterwarnings =
-    ignore:The `schema` method is deprecated.*:DeprecationWarning
-    ignore:Support for class-based `config` is deprecated*:DeprecationWarning
 asyncio_default_fixture_loop_scope = function

setup.py

@@ -41,7 +41,7 @@ def get_long_description():
         "click-default-group>=1.2.3",
         "sqlite-utils>=3.37",
         "sqlite-migrate>=0.1a2",
-        "pydantic>=1.10.2",
+        "pydantic>=2.0.0",
         "PyYAML",
         "pluggy",
         "python-ulid",