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gh-90533: Implement BytesIO.peek()#30808

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marcelm wants to merge 32 commits intopython:mainpython/cpython:mainfrom marcelm:fix-issue-46375marcelm/cpython:fix-issue-46375Copy head branch name to clipboard

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Commits on Sep 19, 2023

• Implement BytesIO.peek()

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• 📜🤖 Added by blurb_it.

  

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• Document BytesIO.peek()

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• Implement with the help of read_bytes()

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• Add to What’s New

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• versionadded: 3.12 -> 3.13

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• Remove unused variable

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Commits on Sep 22, 2023

• Test tell() after peek()

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• Update docs, factor out peek_bytes, semantics

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Commits on Sep 28, 2023

• Merge branch 'main' into fix-issue-46375

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• Update Misc/NEWS.d/next/Library/2022-04-10-20-10-59.bpo-46375.8j1ogZ.rst

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• Update Modules/_io/bytesio.c

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• Update Modules/_io/bytesio.c

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• Use SemBr

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• Update Doc/whatsnew/3.13.rst

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• Apply suggestions from code review

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• Use a context manager around memio in test_peek

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• Add more tests for tell() after peek()

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• Document why size < 0 can happen

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Commits on Sep 29, 2023

• Update Modules/_io/bytesio.c

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• Do not update pos if peek_bytes failed

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• Size can be negative after truncate or seek

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• Test with size<0 and size>len(buf)

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• Test peek() after write()

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• Document BufferedReader.peek and BytesIO.peek similarly

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• Comment

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• More it more explicit that size is ignored

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Commits on Oct 20, 2023

• Merge remote-tracking branch 'upstream/main' into fix-issue-46375

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Commits on Oct 23, 2023

• Return an empty bytes object for size=0

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• Simplify

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• Test peek(3) and peek(5)

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Commits on Oct 25, 2023

• Merge remote-tracking branch 'upstream/main' into fix-issue-46375

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