[Refactor] litellm/init.py: lazy load encoding from main.py#18070
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AlexsanderHamir merged 2 commits intomainfrom Dec 16, 2025
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[Refactor] litellm/init.py: lazy load encoding from main.py#18070AlexsanderHamir merged 2 commits intomainfrom
AlexsanderHamir merged 2 commits intomainfrom
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- Add __getattr__ in main.py to lazy load encoding when accessed - Remove direct assignment of encoding = tiktoken.get_encoding() at module level - Heavy tiktoken.get_encoding() call is now deferred until encoding is first accessed - Follows existing lazy loading patterns - All existing code using litellm.encoding continues to work
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This was referenced Jan 5, 2026
AlexsanderHamir
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… (issue #18659) - Add opt-in environment variable LITELLM_DISABLE_LAZY_LOADING to disable lazy loading - When set, encoding is loaded at import time (pre-#18070 behavior) - This ensures tiktoken is initialized before VCR starts recording HTTP requests - Fixes issue where accessing litellm.encoding triggers HTTP request that breaks VCR - For now, only affects encoding as it was the only reported issue - Includes comprehensive tests
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