* gh-105912: document gotcha with using os.fork on macOS
Using ``fork(2)`` on macOS when also using higher-level
system APIs in the parent proces can crash on macOS because
those system APIs are not written to handle this usage
pattern.
There's nothing we can do about this other than documenting
the problem.
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
POSIX specifies that implementations are not required to support changing the
file mode of symbolic links, but may do so.
Consequently, `lchmod()` is not part of POSIX (but mentioned for implementations
which do support the above).
The current wording of the availability of `os.lchmod()` is rather vague and
improved to clearly tell which POSIX/Unix/BSD-like support the function in
general (those that support changing the file mode of symbolic links).
Further, some examples of major implementations are added.
Data for the BSDs taken from their online manpages.
Signed-off-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Add wrapper for timerfd_create, timerfd_settime, and timerfd_gettime to os module.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
* Refactor os_sched_getaffinity_impl(): move variable definitions to
their first assignment.
* Fix test_posix.test_sched_getaffinity(): restore the old CPU mask
when the test completes!
* Doc: Specify that os.cpu_count() counts *logicial* CPUs.
* Doc: Specify that os.sched_getaffinity(0) is related to the calling
thread.
Document the `os.fork` posix threads detected `DeprecationWarning` in 3.12 What's New, os, multiprocessing, and concurrent.futures docs.
Many reviews and doc cleanup edits by Adam & Hugo. 🥳
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
- name the last parameter *whence*, like it is for seek() methods on
file objects
- add param docstrings
- structure the valid *whence* params
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
This adds a number of PRIO_DARWIN_* constants to the os module for use with os.setpriority.
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* Use new-style index directive ('module') - C API
* Use new-style index directive ('module') - Library
* Use new-style index directive ('module') - Reference
* Use new-style index directive ('module') - Tutorial
* Uncomment module removal in pairindextypes
* Use new-style index directive ('module') - C API
* Use new-style index directive ('module') - Library
* Use new-style index directive ('module') - Reference
This deprecates `st_ctime` fields on Windows, with the intent to change them to contain the correct value in 3.14. For now, they should keep returning the creation time as they always have.
* fileutils: handle non-blocking pipe IO on Windows
Handle erroring operations on non-blocking pipes by reading the _doserrno code.
Limit writes on non-blocking pipes that are too large.
* Support blocking functions on Windows
Use the GetNamedPipeHandleState and SetNamedPipeHandleState Win32 API functions to add support for os.get_blocking and os.set_blocking.
os.remove can raise PermissionError instead of IsADirectoryError,
when the object to be removed is a directory (in particular on
macOS).
This reverts a change done in #14262.
Added os.setns and os.unshare to easily switch between namespaces
on Linux.
Co-authored-by: Christian Heimes <christian@python.org>
Co-authored-by: CAM Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Victor Stinner <vstinner@python.org>
If an HTTP link is redirected to a same looking HTTPS link, the latter can
be used directly without changes in readability and behavior.
It protects from a men-in-the-middle attack.
This change does not affect Python examples.
Ronald Oussoren
Serhiy Storchaka
Christoph Anton Mitterer
Hugo van Kemenade
Ezio Melotti
Donghee Na
Masaru Tsuchiyama
Victor Stinner
Gregory P. Smith
Erlend E. Aasland
Roman Yurchak
Adam Turner
Rafael Fontenelle
Stanley
David Poirier
Steve Dower
Owain Davies
Rayyan Ansari
Ryan Ozawa
Georg Brandl
Charles Machalow
Noam Cohen
Inada Naoki
Christian Heimes
Ned Batchelder
Oleg Iarygin
Illia Volochii
Wei-Ting Yang