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PEP 688: Cannot call super().__buffer__() #104223

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JelleZijlstra opened this issue May 6, 2023 · 1 comment
Closed

PEP 688: Cannot call super().__buffer__() #104223

JelleZijlstra opened this issue May 6, 2023 · 1 comment
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3.12 bugs and security fixes type-bug An unexpected behavior, bug, or error

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@JelleZijlstra
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JelleZijlstra commented May 6, 2023 •
edited by bedevere-bot
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The following will currently fail with a RecursionError:

class A(bytearray):
    def __buffer__(self, flags):
        return super().__buffer__(flags)

a = A()
mv = memoryview(a)

Thanks to @chilaxan for finding this, along with some related problems. I am working on a fix.

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@JelleZijlstra JelleZijlstra added the type-bug An unexpected behavior, bug, or error label May 6, 2023
@bedevere-bot bedevere-bot mentioned this issue May 6, 2023
Merged
@AlexWaygood AlexWaygood added the 3.12 bugs and security fixes label May 6, 2023
JelleZijlstra added a commit that referenced this issue May 8, 2023
@JelleZijlstra @kumaraditya303
gh-104223: Fix issues with inheriting from buffer classes (#104227)
405eacc 
Co-authored-by: Kumar Aditya <[email protected]>
@JelleZijlstra
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Thanks @chilaxan for reporting several possible crashes and thanks @kumaraditya303 for reviewing the fix!

jbower-fb pushed a commit to jbower-fb/cpython-jbowerfb that referenced this issue May 8, 2023
@JelleZijlstra @kumaraditya303 @jbower-fb
pythongh-104223: Fix issues with inheriting from buffer classes (pyth…
b28c5f2 
…on#104227)

Co-authored-by: Kumar Aditya <[email protected]>
carljm added a commit to carljm/cpython that referenced this issue May 9, 2023
@carljm
Merge branch 'main' into inlinecomp2
76077cd 
* main: (47 commits)
  pythongh-97696 Remove unnecessary check for eager_start kwarg (python#104188)
  pythonGH-104308: socket.getnameinfo should release the GIL (python#104307)
  pythongh-104310: Add importlib.util.allowing_all_extensions() (pythongh-104311)
  pythongh-99113: A Per-Interpreter GIL! (pythongh-104210)
  pythonGH-104284: Fix documentation gettext build (python#104296)
  pythongh-89550: Buffer GzipFile.write to reduce execution time by ~15% (python#101251)
  pythongh-104223: Fix issues with inheriting from buffer classes (python#104227)
  pythongh-99108: fix typo in Modules/Setup (python#104293)
  pythonGH-104145: Use fully-qualified cross reference types for the bisect module (python#104172)
  pythongh-103193: Improve `getattr_static` test coverage (python#104286)
  Trim trailing whitespace and test on CI (python#104275)
  pythongh-102500: Remove mention of bytes shorthand (python#104281)
  pythongh-97696: Improve and fix documentation for asyncio eager tasks (python#104256)
  pythongh-99108: Replace SHA3 implementation HACL* version (python#103597)
  pythongh-104273: Remove redundant len() calls in argparse function (python#104274)
  pythongh-64660: Don't hardcode Argument Clinic return converter result variable name (python#104200)
  pythongh-104265 Disallow instantiation of `_csv.Reader` and `_csv.Writer` (python#104266)
  pythonGH-102613: Improve performance of `pathlib.Path.rglob()` (pythonGH-104244)
  pythongh-103650: Fix perf maps address format (python#103651)
  pythonGH-89812: Churn `pathlib.Path` methods (pythonGH-104243)
  ...
carljm added a commit to carljm/cpython that referenced this issue May 9, 2023
@carljm
Merge branch 'main' into fixsendfamily
a614216 
* main: (29 commits)
  pythongh-104276: Make `_struct.unpack_iterator` type use type flag instead of custom constructor (python#104277)
  pythongh-97696: Move around and update the whatsnew entry for asyncio eager task factory (python#104298)
  pythongh-103193: Fix refleaks in `test_inspect` and `test_typing` (python#104320)
  require-pr-label.yml: Add missing "permissions:" (python#104309)
  pythongh-90656: Add platform triplets for 64-bit LoongArch (LA64) (python#30939)
  pythongh-104180: Read SOCKS proxies from macOS System Configuration (python#104181)
  pythongh-97696 Remove unnecessary check for eager_start kwarg (python#104188)
  pythonGH-104308: socket.getnameinfo should release the GIL (python#104307)
  pythongh-104310: Add importlib.util.allowing_all_extensions() (pythongh-104311)
  pythongh-99113: A Per-Interpreter GIL! (pythongh-104210)
  pythonGH-104284: Fix documentation gettext build (python#104296)
  pythongh-89550: Buffer GzipFile.write to reduce execution time by ~15% (python#101251)
  pythongh-104223: Fix issues with inheriting from buffer classes (python#104227)
  pythongh-99108: fix typo in Modules/Setup (python#104293)
  pythonGH-104145: Use fully-qualified cross reference types for the bisect module (python#104172)
  pythongh-103193: Improve `getattr_static` test coverage (python#104286)
  Trim trailing whitespace and test on CI (python#104275)
  pythongh-102500: Remove mention of bytes shorthand (python#104281)
  pythongh-97696: Improve and fix documentation for asyncio eager tasks (python#104256)
  pythongh-99108: Replace SHA3 implementation HACL* version (python#103597)
  ...
carljm added a commit to carljm/cpython that referenced this issue May 9, 2023
@carljm
Merge branch 'main' into supermon
c48eee3 
* main: (156 commits)
  pythongh-97696 Add documentation for get_coro() behavior with eager tasks (python#104304)
  pythongh-97933: (PEP 709) inline list/dict/set comprehensions (python#101441)
  pythongh-99889: Fix directory traversal security flaw in uu.decode() (python#104096)
  pythongh-104184: fix building --with-pydebug --enable-pystats (python#104217)
  pythongh-104139: Add itms-services to uses_netloc urllib.parse. (python#104312)
  pythongh-104240: return code unit metadata from codegen (python#104300)
  pythongh-104276: Make `_struct.unpack_iterator` type use type flag instead of custom constructor (python#104277)
  pythongh-97696: Move around and update the whatsnew entry for asyncio eager task factory (python#104298)
  pythongh-103193: Fix refleaks in `test_inspect` and `test_typing` (python#104320)
  require-pr-label.yml: Add missing "permissions:" (python#104309)
  pythongh-90656: Add platform triplets for 64-bit LoongArch (LA64) (python#30939)
  pythongh-104180: Read SOCKS proxies from macOS System Configuration (python#104181)
  pythongh-97696 Remove unnecessary check for eager_start kwarg (python#104188)
  pythonGH-104308: socket.getnameinfo should release the GIL (python#104307)
  pythongh-104310: Add importlib.util.allowing_all_extensions() (pythongh-104311)
  pythongh-99113: A Per-Interpreter GIL! (pythongh-104210)
  pythonGH-104284: Fix documentation gettext build (python#104296)
  pythongh-89550: Buffer GzipFile.write to reduce execution time by ~15% (python#101251)
  pythongh-104223: Fix issues with inheriting from buffer classes (python#104227)
  pythongh-99108: fix typo in Modules/Setup (python#104293)
  ...
carljm added a commit to carljm/cpython that referenced this issue May 9, 2023
@carljm
Merge branch 'main' into fixloadsuperspec
cf11908 
* main: (35 commits)
  pythongh-97696 Add documentation for get_coro() behavior with eager tasks (python#104304)
  pythongh-97933: (PEP 709) inline list/dict/set comprehensions (python#101441)
  pythongh-99889: Fix directory traversal security flaw in uu.decode() (python#104096)
  pythongh-104184: fix building --with-pydebug --enable-pystats (python#104217)
  pythongh-104139: Add itms-services to uses_netloc urllib.parse. (python#104312)
  pythongh-104240: return code unit metadata from codegen (python#104300)
  pythongh-104276: Make `_struct.unpack_iterator` type use type flag instead of custom constructor (python#104277)
  pythongh-97696: Move around and update the whatsnew entry for asyncio eager task factory (python#104298)
  pythongh-103193: Fix refleaks in `test_inspect` and `test_typing` (python#104320)
  require-pr-label.yml: Add missing "permissions:" (python#104309)
  pythongh-90656: Add platform triplets for 64-bit LoongArch (LA64) (python#30939)
  pythongh-104180: Read SOCKS proxies from macOS System Configuration (python#104181)
  pythongh-97696 Remove unnecessary check for eager_start kwarg (python#104188)
  pythonGH-104308: socket.getnameinfo should release the GIL (python#104307)
  pythongh-104310: Add importlib.util.allowing_all_extensions() (pythongh-104311)
  pythongh-99113: A Per-Interpreter GIL! (pythongh-104210)
  pythonGH-104284: Fix documentation gettext build (python#104296)
  pythongh-89550: Buffer GzipFile.write to reduce execution time by ~15% (python#101251)
  pythongh-104223: Fix issues with inheriting from buffer classes (python#104227)
  pythongh-99108: fix typo in Modules/Setup (python#104293)
  ...
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