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Langchain-Core 1.6.5: Many Tests Fail On FreeBSD 15.1 With Python 3.12

Report of numerous test failures in langchain-core 1.6.5 on FreeBSD 15.1 (Python 3.12), likely due to platform-specific environmental issues such as event loop policy or locale settings.

mediumConfidence 25%LangChainAffected V1.6.5

Origin Analysis

The test failures are likely caused by FreeBSD's default asyncio event loop policy or locale configuration differing from Linux, which LangChain's test suite implicitly assumes. No specific error is provided, but the platform-specific nature suggests environment incompatibilities rather than a direct code defect.
Run the test suite of langchain-core 1.6.5 on FreeBSD 15.1 with Python 3.12. Observe many tests failing. (Full log: https://people.freebsd.org/~yuri/langchain-core-1.6.5-test.log)

Fixing Code Block

# conftest.py import asyncio import locale import sys def pytest_configure(config): # Ensure consistent asyncio event loop policy across platforms if sys.platform.startswith('freebsd'): asyncio.set_event_loop_policy(asyncio.DefaultEventLoopPolicy()) # Set a UTF-8 locale to avoid encoding issues try: locale.setlocale(locale.LC_ALL, 'C.UTF-8') except locale.Error: # Fallback to default if C.UTF-8 not available pass
Adding a conftest.py with these settings normalizes the environment for tests. Setting the default asyncio policy avoids potential issues with FreeBSD's default selector loop. Setting locale ensures consistent string handling. This is a test-harness fix and does not modify the library code.

Edge Case Audit

This fix only addresses test environment; it does not modify library behavior. If the failures indicate actual library incompatibilities on FreeBSD, they may persist in production. Rollback: simply remove the conftest.py. Additional platform-specific issues may require targeted patches.

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