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Response streaming support for Python runtime #39
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Description
Lambda response streaming allows you to incremental stream responses back to clients rather than waiting for the entire response to be buffered first, reducing Time to First Byte. It is currently only supported for Node.js runtime. We would expand support for response streaming to Python runtimes.
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Reacted by Rustem Feyzkhanov, Robert J. Berger, pelle, Sam Mosleh, Paul Garner, Dheeraj Inampudi, anton-shauchenia, Fabian Peters, Iulian Crudu, Ahmed Amer and 26 more
Activity
[-]Feature - Response streaming support for Python runtime[/-][+]Response streaming support for Python runtime[/+]AlKapkone commentedon Jan 28, 2026
Hey, do we have any plans here? This feature is important for us, and it would be great to have response streaming support for the Python runtime.
jhmngai commentedon Jan 30, 2026
We are trying to have this out later this year.
AlKapkone commentedon Jan 30, 2026
@jhmngai Thanks for the quick response. We’re looking forward to this feature.
jojo786 commentedon Nov 2, 2026
has this been de-prioritized?
jhmngai commentedon Nov 10, 2026
We launched Web Functions and our plan to extend support to Python soon. This will allow you to stream responses in Python using web frameworks.