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gh-104018: disallow "z" format specifier in %-format of byte strings #104033

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merged 2 commits into from
May 1, 2023

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belm0
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@belm0 belm0 commented May 1, 2023

PEP-0682 specified that %-formatting would not support the "z" specifier, but it was unintentionally allowed for a byte strings.

…rings

PEP-0682 specified that %-formatting would not support the "z"
specifier, but it was unintentionally allowed for a byte strings.

Issue: python#104018
@arhadthedev arhadthedev added the interpreter-core (Objects, Python, Grammar, and Parser dirs) label May 1, 2023
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LGTM. I'd regard this as a bugfix, and as such, I think it's safe to backport to 3.11.

@mdickinson mdickinson added the needs backport to 3.11 only security fixes label May 1, 2023
@mdickinson mdickinson merged commit 3ed8c88 into python:main May 1, 2023
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Thanks @belm0 for the PR, and @mdickinson for merging it 🌮🎉.. I'm working now to backport this PR to: 3.11.
🐍🍒⛏🤖

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GH-104058 is a backport of this pull request to the 3.11 branch.

@bedevere-bot bedevere-bot removed the needs backport to 3.11 only security fixes label May 1, 2023
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request May 1, 2023
…rings (pythonGH-104033)

PEP-0682 specified that %-formatting would not support the "z" specifier,
but it was unintentionally allowed for bytes. This PR makes use of the "z"
flag an error for %-formatting in a bytestring.

Issue: pythonGH-104018

---------

(cherry picked from commit 3ed8c88)

Co-authored-by: John Belmonte <john@neggie.net>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
mdickinson pushed a commit that referenced this pull request May 1, 2023
…trings (GH-104033) (#104058)

gh-104018: disallow "z" format specifier in %-format of byte strings (GH-104033)

PEP-0682 specified that %-formatting would not support the "z" specifier,
but it was unintentionally allowed for bytes. This PR makes use of the "z"
flag an error for %-formatting in a bytestring.

Issue: GH-104018

---------

(cherry picked from commit 3ed8c88)

Co-authored-by: John Belmonte <john@neggie.net>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
carljm added a commit to carljm/cpython that referenced this pull request May 1, 2023
* main: (463 commits)
  pythongh-104057: Fix direct invocation of test_super (python#104064)
  pythongh-87092: Expose assembler to unit tests (python#103988)
  pythongh-97696: asyncio eager tasks factory (python#102853)
  pythongh-84436: Immortalize in _PyStructSequence_InitBuiltinWithFlags() (pythongh-104054)
  pythongh-104057: Fix direct invocation of test_module (pythonGH-104059)
  pythongh-100458: Clarify Enum.__format__() change of mixed-in types in the whatsnew/3.11.rst (pythonGH-100387)
  pythongh-104018: disallow "z" format specifier in %-format of byte strings (pythonGH-104033)
  pythongh-104016: Fixed off by 1 error in f string tokenizer (python#104047)
  pythonGH-103629: Update Unpack's repr in compliance with PEP 692 (python#104048)
  pythongh-102799: replace sys.exc_info by sys.exception in inspect and traceback modules (python#104032)
  Fix typo in "expected" word in few source files (python#104034)
  pythongh-103824: fix use-after-free error in Parser/tokenizer.c (python#103993)
  pythongh-104035: Do not ignore user-defined `__{get,set}state__` in slotted frozen dataclasses (python#104041)
  pythongh-104028: Reduce object creation while calling callback function from gc (pythongh-104030)
  pythongh-104036: Fix direct invocation of test_typing (python#104037)
  pythongh-102213: Optimize the performance of `__getattr__` (pythonGH-103761)
  pythongh-103895: Improve how invalid `Exception.__notes__` are displayed (python#103897)
  Adjust expression from `==` to `!=` in alignment with the meaning of the paragraph. (pythonGH-104021)
  pythongh-88496: Fix IDLE test hang on macOS (python#104025)
  Improve int test coverage (python#104024)
  ...
belm0 added a commit to belm0/cpython that referenced this pull request May 2, 2023
@belm0 belm0 deleted the z_format_bytes branch May 2, 2023 22:04
belm0 added a commit to belm0/cpython that referenced this pull request May 2, 2023
…oat()

This is a cleanup overlooked in PR python#104033.

Please skip NEWS.
kumaraditya303 pushed a commit that referenced this pull request May 7, 2023
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request May 7, 2023
…oat() (pythonGH-104107)

This is a cleanup overlooked in PR pythonGH-104033.
(cherry picked from commit 69621d1)

Co-authored-by: John Belmonte <john@neggie.net>
kumaraditya303 pushed a commit that referenced this pull request May 7, 2023
…loat() (GH-104107) (#104260)

gh-104018: remove unused format "z" handling in string formatfloat() (GH-104107)

This is a cleanup overlooked in PR GH-104033.
(cherry picked from commit 69621d1)

Co-authored-by: John Belmonte <john@neggie.net>
jbower-fb pushed a commit to jbower-fb/cpython-jbowerfb that referenced this pull request May 8, 2023
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5 participants