Add preview warning for Python 3.15#209
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M-Elsaeed
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Jun 22, 2026
| if os.environ.get("LAMBDA_DISABLE_PREVIEW_WARN", ""): | ||
| return | ||
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| from .lambda_literals import get_lambda_preview_runtime_warning_message |
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Just out of curiosity. Why don't you import it at top-level? Thats because it's a performance stuff and lazy loading is better?
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Yup, I'm avoiding the tiny performance hit of the lazy loaded import by returning earlier
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Issue #, if available: none
Description of changes: This change adds a message meant to warn that the Lambda function is running on top of a preview runtime. The message can be disabled via the env variable
LAMBDA_DISABLE_PREVIEW_WARNTarget (OCI, Managed Runtime, both): both
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.