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Linux's chattr i.e. ioctl(FS_IOC_SETFLAGS) is not supported in os.chflags() #87105

Closed as duplicate
Closed as duplicate
Linux's chattr i.e. ioctl(FS_IOC_SETFLAGS) is not supported in os.chflags()#87105
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3.10 (EOL)end of life3.9 (EOL)end of lifestdlibStandard Library Python modules in the Lib/ directory

Description

@socketpair
socketpair
mannequin
opened on Jan 16, 2021
BPO 42939
Nosy @tiran, @socketpair, @eryksun, @corona10

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-01-16.14:25:34.618>
labels = ['library', '3.9', '3.10']
title = "Linux's chattr i.e. ioctl(FS_IOC_SETFLAGS) is not supported in os.chflags()"
updated_at = <Date 2021-01-30.20:50:43.418>
user = 'https://github.com/socketpair'

bugs.python.org fields:

activity = <Date 2021-01-30.20:50:43.418>
actor = 'eryksun'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-01-16.14:25:34.618>
creator = 'socketpair'
dependencies = []
files = []
hgrepos = []
issue_num = 42939
keywords = []
message_count = 2.0
messages = ['385141', '385995']
nosy_count = 4.0
nosy_names = ['christian.heimes', 'socketpair', 'eryksun', 'corona10']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue42939'
versions = ['Python 3.9', 'Python 3.10']

Activity

  1. socketpair commented on Jan 16, 2021

    @socketpair
    socketpairmannequin
    on Jan 16, 2021
    MannequinAuthor

    https://man7.org/linux/man-pages/man2/ioctl_iflags.2.html

    Seems the ioctl is only way to implement chattr(). I propose to add all these flags to os.chflags() and to gain its support in Linux.

  2. socketpair
    added
    3.9 (EOL)end of life
    3.10 (EOL)end of life
    stdlibStandard Library Python modules in the Lib/ directory
    on Jan 16, 2021

  3. eryksun commented on Jan 30, 2021

    @eryksun
    eryksun
    on Jan 30, 2021
    Contributor

    bpo-39533 is a related issue that seeks to support the Linux statx() system call. A statx record includes an stx_attributes field, which supports the following file attributes that can be set with chattr:

    [a]ppend    : STATX_ATTR_APPEND
[c]ompressed: STATX_ATTR_COMPRESSED
no [d]ump   : STATX_ATTR_NODUMP
[i]mmutable : STATX_ATTR_IMMUTABLE
da[x]       : STATX_ATTR_DAX (5.8)

    and the following read-only file attributes that can be listed with lsattr:

    [E]ncrypted : STATX_ATTR_ENCRYPTED
[V]erity    : STATX_ATTR_VERITY (5.5)
  4. ezio-melotti
    transferred this issue fromon Apr 10, 2022
  5. serhiy-storchaka
    added this to OS issues 💻on Jul 3, 2026
  6. github-project-automation
    moved this to Todo in OS issues 💻on Jul 3, 2026

  7. encukou commented on Aug 25, 2026

    @encukou
    encukou
    on Aug 25, 2026
    Member

    This is a duplicate of #75494.

  8. encukou
    closed this as a duplicateof Feature Add support of os.chflags() on Linux platform #75494 on Aug 25, 2026
  9. github-project-automation
    moved this from Todo to Done in OS issues 💻on Aug 25, 2026
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