Allow for use of Pydantic v1 as well as v2.

llm/default_plugins/openai_models.py

@@ -4,7 +4,12 @@
 import click
 import datetime
 import openai
-from pydantic import field_validator, Field
+
+try:
+    from pydantic import field_validator, Field
+except ImportError:
+    from pydantic.fields import Field
+    from pydantic.class_validators import validator as field_validator  # type: ignore [no-redef]
 import requests
 from typing import List, Optional, Union
 import json

llm/models.py

@@ -7,7 +7,7 @@
 from abc import ABC, abstractmethod
 import os
 import json
-from pydantic import ConfigDict, BaseModel
+from pydantic import BaseModel
 from ulid import ULID
 
 CONVERSATION_NAME_LENGTH = 32
@@ -200,7 +200,10 @@ def __repr__(self):
 
 
 class Options(BaseModel):
-    model_config = ConfigDict(extra="forbid")
+    # Note: using pydantic v1 style Configs,
+    # these are also compatible with pydantic v2
+    class Config:
+        extra = "forbid"
 
 
 _Options = Options

setup.py

@@ -40,7 +40,7 @@ def get_long_description():
         "openai",
         "click-default-group-wheel",
         "sqlite-utils",
-        "pydantic>=2.0.0",
+        "pydantic>=1.10.2",
         "PyYAML",
         "pluggy",
         "python-ulid",