Pydantic V2 warning

[n1lanjan]

SDK Version (required)
Provide the version you are using.

❯ python
Python 3.11.4 (main, Feb  2 2024, 19:01:43) [Clang 14.0.0 (clang-1400.0.29.202)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cohere
/user/home/.venv/lib/python3.11/site-packages/pydantic/_internal/_config.py:341: UserWarning: Valid config keys have changed in V2:
* 'allow_population_by_field_name' has been renamed to 'populate_by_name'
* 'smart_union' has been removed
  warnings.warn(message, UserWarning)
>>> print(cohere.__version__)
5.8.0
>>> import pydantic
>>> pydantic.VERSION
'2.8.2'

Describe the bug

I am getting this warning while trying to use the library.

.venv/lib/python3.11/site-packages/pydantic/_internal/_config.py:341: UserWarning: Valid config keys have changed in V2:
* 'allow_population_by_field_name' has been renamed to 'populate_by_name'
* 'smart_union' has been removed
  warnings.warn(message, UserWarning)

This warning is triggering from the code below:

• cohere-python/src/cohere/core/pydantic_utilities.py

  Lines 85 to 90 in 5402078

  	class UniversalBaseModel(pydantic.BaseModel):
  	class Config:
  	populate_by_name = True
  	smart_union = True
  	allow_population_by_field_name = True
  	json_encoders = {dt.datetime: serialize_datetime}

I proposed a PR, please review

• Update pydantic_utilities.py #560

[billytrend-cohere]

Thanks @n1lanjan we are looking into this!

[billytrend-cohere]

This is now fixed in the latest version of the sdk! thanks @n1lanjan

[Tenzer]

The latest version (5.9.1) still triggers deprecation warnings with Pydantic V2 (2.8.2). You can see this if you import the Cohere library while elevating warnings to errors (like we do in our test suite):

$ python -W all -c 'import cohere'
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(
<path>/.venv/lib/python3.12/site-packages/pydantic/_internal/_generate_schema.py:273: PydanticDeprecatedSince20: `json_encoders` is deprecated. See https://docs.pydantic.dev/2.8/concepts/serialization/#custom-serializers for alternatives. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.8/migration/
  warnings.warn(

[billytrend-cohere]

Thanks for the repro @Tenzer, looking into it!