Description

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'

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

   

   socketpairmannequin

   on Jan 16, 2021

   MannequinAuthor

   More actions

   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 lifeend of life

   3.10 (EOL)end of lifeend of life

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

   on Jan 16, 2021
3. eryksun commented on Jan 30, 2021

   

   eryksun

   on Jan 30, 2021

   Contributor

   More actions

   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

   on Aug 25, 2026

   Member

   More actions

   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

Issue actions