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First of a few PRs to add full compatibility to both pydantic v1 and v2.
This PR creates pydantic v1 namespace and adds it to sys.modules.
Upcoming changes:
1. Handle `openapi-schema-pydantic = "^1.2"` and dependent chains/tools
2. bump dependencies to versions that are cross compatible for pydantic
or remove them (see below)
3. Add tests to github workflows to test with pydantic v1 and v2
**Dependencies**
From a quick look (could be wrong since was done manually)
**dependencies pinning pydantic below 2** (some of these can be bumped
to newer versions are provide cross-compatible code)
anthropic
bentoml
confection
fastapi
langsmith
octoai-sdk
openapi-schema-pydantic
qdrant-client
spacy
steamship
thinc
zep-python
Unpinned
marqo (*)
nomic (*)
xinference(*)
Proposal for an internal API to deprecate LangChain code.
This PR is heavily based on:
https://github.com/matplotlib/matplotlib/blob/main/lib/matplotlib/_api/deprecation.py
This PR only includes deprecation functionality (no renaming etc.).
Additional functionality can be added on a need basis (e.g., renaming
parameters), but best to roll out as an MVP to test this
out.
DeprecationWarnings are ignored by default. We can change the policy for
the deprecation warnings, but we'll need to make sure we're not creating
noise for users due to internal code invoking deprecated functionality.