From Seconds to Milliseconds: Fixing Python Cold Starts with SnapStart

DEV CommunityMonday, October 27, 2025 at 9:49:21 PM
A recent development in AWS Lambda has significantly reduced cold start times for Python applications, particularly those using Pydantic. With the introduction of SnapStart, the initialization time that previously caused delays has been minimized, allowing developers to focus more on building features rather than dealing with latency issues. This improvement is crucial for enhancing user experience and optimizing application performance, making it a game-changer for Python developers.
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