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Move Buffered tests from test_io to test_bufio

testsTests in the Lib/test dirTests in the Lib/test dir

topic-IO

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#138013 In python/cpython;

· cmaloney opened on Aug 21, 2025

Python <code>io.open</code> intermittently throw <code>PermissionError</code> on windows

OS-windows

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136965 In python/cpython;

· googlyrahman opened on Jul 22, 2025

Use implemenation-specific I/O open / constructors in tests

testsTests in the Lib/test dirTests in the Lib/test dir

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#133982 In python/cpython;

· cmaloney opened on May 13, 2025

Document BytesIO buffer size

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-IO

Status: Open.

#133521 In python/cpython;

· jxu opened on May 6, 2025

Simplify Windows write I/O around consoles on Windows 8+

OS-windows

topic-IO

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#121940 In python/cpython;

· cmaloney opened on Jul 17, 2024

codecs.open doesn't support encoding='locale' in Python3.11

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-IO

topic-unicode

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#120406 In python/cpython;

· Amethiel opened on Jun 12, 2024

OOM vulnerability in the CGI server on Windows

3.10only security fixesonly security fixes

3.11only security fixesonly security fixes

3.12only security fixesonly security fixes

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.8 (EOL)end of lifeend of life

3.9only security fixesonly security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-IO

type-securityA security issueA security issue

Status: Open.

#119452 In python/cpython;

· serhiy-storchaka opened on May 23, 2024

Out-of-memory when reading a HTTP response with large Content-Lenght

3.10only security fixesonly security fixes

3.11only security fixesonly security fixes

3.12only security fixesonly security fixes

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.8 (EOL)end of lifeend of life

3.9only security fixesonly security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-IO

type-securityA security issueA security issue

Status: Open.

#119451 In python/cpython;

· serhiy-storchaka opened on May 23, 2024

Adding read/readline() after write appends to EOF, not to the position

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#117095 In python/cpython;

· dom-0 opened on Mar 20, 2024

file.tell() after a write is not correct in append mode

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#116376 In python/cpython;

· isidroas opened on Mar 5, 2024

Garbage collection of the BytesIO buffer object raises an unraisable exception

3.11only security fixesonly security fixes

3.12only security fixesonly security fixes

3.13bugs and security fixesbugs and security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#111331 In python/cpython;

· serhiy-storchaka opened on Oct 25, 2023

_pyio.BytesIO destructor raises an unraisable exception if there is a BytesIO buffer

3.11only security fixesonly security fixes

3.12only security fixesonly security fixes

3.13bugs and security fixesbugs and security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-IO

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#111330 In python/cpython;

· serhiy-storchaka opened on Oct 25, 2023