Misc/NEWS.d/next/Library/2026-03-27-12-00-00.gh-issue-146507.1D95A7.rst - external/github.com/python/cpython - Git at Google

 Make :meth:`asyncio.SelectorEventLoop` stream transport's
 :meth:`~asyncio.WriteTransport.get_write_buffer_size` O(1) by maintaining a
 running byte counter instead of iterating the buffer on every call.
	Make :meth:`asyncio.SelectorEventLoop` stream transport's
	:meth:`~asyncio.WriteTransport.get_write_buffer_size` O(1) by maintaining a
	running byte counter instead of iterating the buffer on every call.