Dependency versioning #61
Description
Hello :)
I found that when adding jpl-rosa as a dependency in my project, the versions of langchain it pulled in were slightly outdated, resulting in the error below. Updating langchain fixed this, despite a supposed version mismatch. It may be better to use compatibility versioning (~=) instead of strict versioning (==) for dependencies.
Error from langchain (pydantic was up to date):
Traceback (most recent call last):
File "/opt/workspace/build/robot_mission_control/robot_mission_control/widgets/widget.py", line 17, in __call__
instance = super().__call__(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/workspace/build/robot_mission_control/robot_mission_control/widgets/chatbot.py", line 541, in __init__
llm = ChatOpenAI(
^^^^^^^^^^^
File "/opt/workspace/venv/lib/python3.12/site-packages/langchain_core/load/serializable.py", line 111, in __init__
super().__init__(*args, **kwargs)
File "/opt/workspace/venv/lib/python3.12/site-packages/pydantic/main.py", line 253, in __init__
validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/workspace/venv/lib/python3.12/site-packages/pydantic/_internal/_mock_val_ser.py", line 100, in __getattr__
raise PydanticUserError(self._error_message, code=self._code)
pydantic.errors.PydanticUserError: `ChatOpenAI` is not fully defined; you should define `BaseCache`, then call `ChatOpenAI.model_rebuild()`.
For further information visit https://errors.pydantic.dev/2.11/u/class-not-fully-defined
pip install langchain --upgrade fixed this, my currently installed versions are langchain 0.3.23, langchain-community 0.3.21 and langchain-core 0.3.52.