fix pydantic

{{ cookiecutter.package_name }}/pyproject.toml

@@ -22,7 +22,8 @@ classifiers = [
 dependencies = [
     "sqlalchemy >= 1.4, < 3.0",
     "alembic",
-    "pydantic[dotenv]",
+    "pydantic[dotenv] ~= 2",
+    "pydantic-settings",
     "fake_session_maker",
     "model_dml"
 ]
@@ -71,7 +72,7 @@ legacy_tox_ini = """
     [tox]
     min_version = 4.0
     env_list =
-        py{37,38,39,310,311,312}
+        py{38,39,310,311,312}
         black
         flake8
         mypy

{{ cookiecutter.package_name }}/src/{{ cookiecutter.package_slug }}/alembic/env.py

 from logging.config import fileConfig
 
-import pydantic
+import pydantic_settings
 from sqlalchemy import engine_from_config, pool
 
 import {{ cookiecutter.package_slug }}.models
@@ -27,7 +27,7 @@ target_metadata = {{ cookiecutter.package_slug }}.models.Base.metadata
 # ... etc.
 
 
-class Settings(pydantic.BaseSettings):
+class Settings(pydantic_settings.BaseSettings):
     class Config:
         env_file = ".env"
 

{{ cookiecutter.package_name }}/src/{{ cookiecutter.package_slug }}/common.py

 import functools
 
-import pydantic
+import pydantic_settings
 import sqlalchemy.orm
 
 
-class Settings(pydantic.BaseSettings):
+class Settings(pydantic_settings.BaseSettings):
     class Config:
         env_file = ".env"
 

{{ cookiecutter.package_name }}/src/{{ cookiecutter.package_slug }}/pytest_plugin/fixtures.py

@@ -3,7 +3,7 @@ import typing
 
 import alembic.command
 import alembic.config
-import pydantic
+import pydantic_settings
 import pytest
 import sqlalchemy.orm
 from fake_session_maker import fsm
@@ -15,7 +15,7 @@ local_config: typing.Final = alembic.config.Config(
 )
 
 
-class Settings(pydantic.BaseSettings):
+class Settings(pydantic_settings.BaseSettings):
     class Config:
         env_file = ".env"