fix: remove importlib.metadata usage for version access #5996
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- Replace importlib.metadata.version() with hardcoded versions in version.py files - Update libs/langgraph/langgraph/version.py to use __version__ = '0.6.6' - Update libs/cli/langgraph_cli/version.py to use __version__ = '0.3.8' - Improves import performance by eliminating metadata lookup overhead - Maintains consistency with existing CLI __init__.py pattern Resolves langchain-ai#5040
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Summary
Removes
importlib.metadatausage for version access in favor ofhardcoded versions, addressing performance concerns raised in #5040.
Changes Made
importlib.metadata.version(__package__)with hardcoded__version__ = "0.6.6"importlib.metadata.version(__package__)with hardcoded__version__ = "0.3.8"Why This Change?
libs/cli/langgraph_cli/__init__.pyTest Plan
importlib.metadata
make lint)Breaking Changes
None - this is a pure implementation change with no API modifications.
Checklist
importlib.metadatafor version access #5040)Closes #5040