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author	Cody Maloney <cmaloney@users.noreply.github.com>
	Thu, 30 Jan 2025 11:23:25 +0000 (03:23 -0800)
committer	GitHub <noreply@github.com>
	Thu, 30 Jan 2025 11:23:25 +0000 (11:23 +0000)
commit	e1c4ba928852eac0b0e0bded1c314e3e36975286
tree	148adc5b5601356f07f854ca89fe35309addd47c	tree \| snapshot
parent	3bebe46d3413195ee18c5c9ada83a35d4fd1d0e7	commit \| diff

gh-129005: _pyio.BufferedIO remove copy on readall (#129454)

Slicing buf and appending chunk would always result in a copy. Commonly
in a readall() there is no already read data in buf, and the amount of
data read may be large, so the copy is expensive.

Lib/_pyio.py		diff \| blob \| blame \| history
Misc/NEWS.d/next/Library/2025-01-29-00-00-01.gh-issue-129005.aV_3O8.rst	[new file with mode: 0644]	blob

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