[FEEDBACK REQUEST] Python 3.15 preview

Today, we have published the preview AWS Lambda Python 3.15 runtime. You can use it to build and deploy Python 3.15 Lambda functions in **both deployment formats**:

- **Managed runtime (ZIP):** select the `python3.15` runtime when deploying your function code as a `.zip` archive.
- **Container image (OCI):** build and deploy your function using the preview base image `public.ecr.aws/lambda/python:3.15-preview`.

⚠️ **Public preview - not for production use.** Preview runtimes are provided for feedback and testing only, and should not be used for production workloads. They are not covered by AWS Technical Support and are not eligible for the Lambda SLA. The purpose of preview runtimes is to gather feedback prior to General Availability, while breaking changes are still possible. These runtimes and images may be modified or discontinued without notice.

Please share any feedback below! Thank you!

No source file, test, or entry point is named. Start by reviewing the Python 3.15 preview in both ZIP managed-runtime and OCI container-image formats, then use the issue thread to identify a specific problem or requested change; completion cannot be defined until concrete feedback is recorded.

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