fix: do not configure 3rd party httpx library's logging

[akx]

Importing langfuse should not change the logging settings for a third-party (httpx) library.

---

Important

Removes httpx logger configuration from logger.py to prevent altering third-party library logging settings.

• Behavior:
  • Removes configuration of httpx logger in logger.py to prevent altering third-party library logging settings.
• Logging:
  • Only the langfuse logger is configured in logger.py now, set to WARNING level.

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Disclaimer: Experimental PR review

Greptile Summary

Removes httpx logger configuration from langfuse/logger.py to follow Python best practices. Libraries should not configure logging for third-party dependencies, as this can interfere with application-level logging configurations.

Key changes:

• Removed httpx_logger configuration (level setting and console handler)
• Updated module docstring to reflect that only the langfuse logger is configured
• No breaking changes - the removed httpx_logger was never exported or referenced elsewhere in the codebase

Confidence Score: 5/5

• This PR is safe to merge with no risk
• The change removes problematic code that was configuring a third-party library's logger. The removed httpx_logger was never exported or used elsewhere in the codebase, and existing tests only reference langfuse_logger. This is a pure cleanup that follows Python logging best practices.
• No files require special attention

Important Files Changed

Filename	Overview
langfuse/logger.py	Removes httpx logger configuration to prevent altering third-party library logging settings

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