Mailing List Archive

https://github.com/python/cpython/commit/0f27672c5002de96c9f1228b12460d5ce3f1d190
commit: 0f27672c5002de96c9f1228b12460d5ce3f1d190
branch: main
author: Russell Keith-Magee <russell@keith-magee.com>
committer: ned-deily <nad@python.org>
date: 2024-03-28T04:13:13-04:00
summary:

gh-114099: Add documentation for iOS platform (GH-117057)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Jacob Coffee <jacob@z7x.org>
Co-authored-by: Malcolm Smith <smith@chaquo.com>
Co-authored-by: Ned Deily <nad@python.org>

files:
A Doc/includes/wasm-ios-notavail.rst
A Doc/using/ios.rst
A Misc/NEWS.d/next/Documentation/2024-03-20-12-41-47.gh-issue-114099.ad_Ck9.rst
A Misc/NEWS.d/next/Documentation/2024-03-20-15-12-37.gh-issue-115977.IMLi6K.rst
M Doc/includes/wasm-notavail.rst
M Doc/library/curses.rst
M Doc/library/dbm.rst
M Doc/library/ensurepip.rst
M Doc/library/fcntl.rst
M Doc/library/grp.rst
M Doc/library/intro.rst
M Doc/library/multiprocessing.rst
M Doc/library/os.rst
M Doc/library/pwd.rst
M Doc/library/readline.rst
M Doc/library/resource.rst
M Doc/library/signal.rst
M Doc/library/socket.rst
M Doc/library/subprocess.rst
M Doc/library/syslog.rst
M Doc/library/venv.rst
M Doc/tools/extensions/pyspecific.py
M Doc/using/configure.rst
M Doc/using/index.rst
M iOS/README.rst

diff --git a/Doc/includes/wasm-ios-notavail.rst b/Doc/includes/wasm-ios-notavail.rst
new file mode 100644
index 00000000000000..c820665f5e403c
--- /dev/null
+++ b/Doc/includes/wasm-ios-notavail.rst
@@ -0,0 +1,8 @@
+.. include for modules that don't work on WASM or iOS
+
+.. availability:: not WASI, not iOS.
+
+ This module does not work or is not available on WebAssembly platforms, or
+ on iOS. See :ref:`wasm-availability` for more information on WASM
+ availability; see :ref:`iOS-availability` for more information on iOS
+ availability.
diff --git a/Doc/includes/wasm-notavail.rst b/Doc/includes/wasm-notavail.rst
index e680e1f9b43807..c1b79d2a4a0508 100644
--- a/Doc/includes/wasm-notavail.rst
+++ b/Doc/includes/wasm-notavail.rst
@@ -1,7 +1,6 @@
.. include for modules that don't work on WASM

-.. availability:: not Emscripten, not WASI.
+.. availability:: not WASI.

- This module does not work or is not available on WebAssembly platforms
- ``wasm32-emscripten`` and ``wasm32-wasi``. See
+ This module does not work or is not available on WebAssembly. See
:ref:`wasm-availability` for more information.
diff --git a/Doc/library/curses.rst b/Doc/library/curses.rst
index 9b8a98f05f7cbb..550872ce2ca59e 100644
--- a/Doc/library/curses.rst
+++ b/Doc/library/curses.rst
@@ -21,6 +21,8 @@ for Windows, DOS, and possibly other systems as well. This extension module is
designed to match the API of ncurses, an open-source curses library hosted on
Linux and the BSD variants of Unix.

+.. include:: ../includes/wasm-ios-notavail.rst
+
.. note::

Whenever the documentation mentions a *character* it can be specified
diff --git a/Doc/library/dbm.rst b/Doc/library/dbm.rst
index 227b55c4315419..54627363ba76ae 100644
--- a/Doc/library/dbm.rst
+++ b/Doc/library/dbm.rst
@@ -19,6 +19,7 @@ slow-but-simple implementation in module :mod:`dbm.dumb` will be used. There
is a `third party interface <https://www.jcea.es/programacion/pybsddb.htm>`_ to
the Oracle Berkeley DB.

+.. include:: ../includes/wasm-ios-notavail.rst

.. exception:: error

@@ -455,4 +456,3 @@ The :mod:`!dbm.dumb` module defines the following:
.. method:: dumbdbm.close()

Close the database.
-
diff --git a/Doc/library/ensurepip.rst b/Doc/library/ensurepip.rst
index de3b93f5e61073..168e45cfd6fc90 100644
--- a/Doc/library/ensurepip.rst
+++ b/Doc/library/ensurepip.rst
@@ -38,7 +38,7 @@ when creating a virtual environment) or after explicitly uninstalling
:pep:`453`: Explicit bootstrapping of pip in Python installations
The original rationale and specification for this module.

-.. include:: ../includes/wasm-notavail.rst
+.. include:: ../includes/wasm-ios-notavail.rst

Command line interface
----------------------
diff --git a/Doc/library/fcntl.rst b/Doc/library/fcntl.rst
index b93d6ac7aab956..59215f34e01cb7 100644
--- a/Doc/library/fcntl.rst
+++ b/Doc/library/fcntl.rst
@@ -18,7 +18,7 @@ interface to the :c:func:`fcntl` and :c:func:`ioctl` Unix routines.
See the :manpage:`fcntl(2)` and :manpage:`ioctl(2)` Unix manual pages
for full details.

-.. availability:: Unix, not Emscripten, not WASI.
+.. availability:: Unix, not WASI.

All functions in this module take a file descriptor *fd* as their first
argument. This can be an integer file descriptor, such as returned by
diff --git a/Doc/library/grp.rst b/Doc/library/grp.rst
index 274a353103b488..9cf25b7ae137a3 100644
--- a/Doc/library/grp.rst
+++ b/Doc/library/grp.rst
@@ -10,7 +10,7 @@
This module provides access to the Unix group database. It is available on all
Unix versions.

-.. availability:: Unix, not Emscripten, not WASI.
+.. availability:: Unix, not WASI, not iOS.

Group database entries are reported as a tuple-like object, whose attributes
correspond to the members of the ``group`` structure (Attribute field below, see
diff --git a/Doc/library/intro.rst b/Doc/library/intro.rst
index 5a4c9b8b16ab3b..ffc8939d21157d 100644
--- a/Doc/library/intro.rst
+++ b/Doc/library/intro.rst
@@ -58,7 +58,7 @@ Notes on availability
operating system.

* If not separately noted, all functions that claim "Availability: Unix" are
- supported on macOS, which builds on a Unix core.
+ supported on macOS and iOS, both of which build on a Unix core.

* If an availability note contains both a minimum Kernel version and a minimum
libc version, then both conditions must hold. For example a feature with note
@@ -119,3 +119,44 @@ DOM APIs as well as limited networking capabilities with JavaScript's
.. _wasmtime: https://wasmtime.dev/
.. _Pyodide: https://pyodide.org/
.. _PyScript: https://pyscript.net/
+
+.. _iOS-availability:
+
+iOS
+---
+
+iOS is, in most respects, a POSIX operating system. File I/O, socket handling,
+and threading all behave as they would on any POSIX operating system. However,
+there are several major differences between iOS and other POSIX systems.
+
+* iOS can only use Python in "embedded" mode. There is no Python REPL, and no
+ ability to execute binaries that are part of the normal Python developer
+ experience, such as :program:`pip`. To add Python code to your iOS app, you must use
+ the :ref:`Python embedding API <embedding>` to add a Python interpreter to an
+ iOS app created with Xcode. See the :ref:`iOS usage guide <using-ios>` for
+ more details.
+
+* An iOS app cannot use any form of subprocessing, background processing, or
+ inter-process communication. If an iOS app attempts to create a subprocess,
+ the process creating the subprocess will either lock up, or crash. An iOS app
+ has no visibility of other applications that are running, nor any ability to
+ communicate with other running applications, outside of the iOS-specific APIs
+ that exist for this purpose.
+
+* iOS apps have limited access to modify system resources (such as the system
+ clock). These resources will often be *readable*, but attempts to modify
+ those resources will usually fail.
+
+* iOS apps have a limited concept of console input and output. ``stdout`` and
+ ``stderr`` *exist*, and content written to ``stdout`` and ``stderr`` will be
+ visible in logs when running in Xcode, but this content *won't* be recorded
+ in the system log. If a user who has installed your app provides their app
+ logs as a diagnostic aid, they will not include any detail written to
+ ``stdout`` or ``stderr``.
+
+ iOS apps have no concept of ``stdin`` at all. While iOS apps can have a
+ keyboard, this is a software feature, not something that is attached to
+ ``stdin``.
+
+ As a result, Python library that involve console manipulation (such as
+ :mod:`curses` and :mod:`readline`) are not available on iOS.
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 0b87de4c61e6aa..afc148c78e97bd 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -8,7 +8,7 @@

--------------

-.. include:: ../includes/wasm-notavail.rst
+.. include:: ../includes/wasm-ios-notavail.rst

Introduction
------------
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index e1f29ae051e2fa..e2bd481fa30b0d 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -34,12 +34,12 @@ Notes on the availability of these functions:

* On VxWorks, os.popen, os.fork, os.execv and os.spawn*p* are not supported.

-* On WebAssembly platforms ``wasm32-emscripten`` and ``wasm32-wasi``, large
- parts of the :mod:`os` module are not available or behave differently. API
- related to processes (e.g. :func:`~os.fork`, :func:`~os.execve`), signals
- (e.g. :func:`~os.kill`, :func:`~os.wait`), and resources
- (e.g. :func:`~os.nice`) are not available. Others like :func:`~os.getuid`
- and :func:`~os.getpid` are emulated or stubs.
+* On WebAssembly platforms, and on iOS, large parts of the :mod:`os` module are
+ not available or behave differently. API related to processes (e.g.
+ :func:`~os.fork`, :func:`~os.execve`) and resources (e.g. :func:`~os.nice`)
+ are not available. Others like :func:`~os.getuid` and :func:`~os.getpid` are
+ emulated or stubs. WebAssembly platforms also lack support for signals (e.g.
+ :func:`~os.kill`, :func:`~os.wait`).


.. note::
@@ -178,7 +178,7 @@ process and user.

Return the filename corresponding to the controlling terminal of the process.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: environ
@@ -355,7 +355,7 @@ process and user.
Return the effective group id of the current process. This corresponds to the
"set id" bit on the file being executed in the current process.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: geteuid()
@@ -364,7 +364,7 @@ process and user.

Return the current process's effective user id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: getgid()
@@ -375,8 +375,8 @@ process and user.

.. availability:: Unix.

- The function is a stub on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is a stub on WASI, see :ref:`wasm-availability` for more
+ information.


.. function:: getgrouplist(user, group, /)
@@ -386,7 +386,7 @@ process and user.
field from the password record for *user*, because that group ID will
otherwise be potentially omitted.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -395,7 +395,7 @@ process and user.

Return list of supplemental group ids associated with the current process.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. note::

@@ -423,7 +423,7 @@ process and user.
falls back to ``pwd.getpwuid(os.getuid())[0]`` to get the login name of the
current real user id.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.


.. function:: getpgid(pid)
@@ -431,7 +431,7 @@ process and user.
Return the process group id of the process with process id *pid*. If *pid* is 0,
the process group id of the current process is returned.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. function:: getpgrp()

@@ -439,7 +439,7 @@ process and user.

Return the id of the current process group.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: getpid()
@@ -448,8 +448,8 @@ process and user.

Return the current process id.

- The function is a stub on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is a stub on WASI, see :ref:`wasm-availability` for more
+ information.

.. function:: getppid()

@@ -459,7 +459,7 @@ process and user.
the id returned is the one of the init process (1), on Windows it is still
the same id, which may be already reused by another process.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

.. versionchanged:: 3.2
Added support for Windows.
@@ -477,7 +477,7 @@ process and user.
(respectively) the calling process, the process group of the calling process,
or the real user ID of the calling process.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -488,7 +488,7 @@ process and user.

Parameters for the :func:`getpriority` and :func:`setpriority` functions.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -509,7 +509,7 @@ process and user.
Return a tuple (ruid, euid, suid) denoting the current process's
real, effective, and saved user ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.2

@@ -519,7 +519,7 @@ process and user.
Return a tuple (rgid, egid, sgid) denoting the current process's
real, effective, and saved group ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.2

@@ -532,8 +532,8 @@ process and user.

.. availability:: Unix.

- The function is a stub on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is a stub on WASI, see :ref:`wasm-availability` for more
+ information.


.. function:: initgroups(username, gid, /)
@@ -542,7 +542,7 @@ process and user.
the groups of which the specified username is a member, plus the specified
group id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.2

@@ -576,21 +576,21 @@ process and user.

Set the current process's effective group id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: seteuid(euid, /)

Set the current process's effective user id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setgid(gid, /)

Set the current process' group id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setgroups(groups, /)
@@ -599,7 +599,7 @@ process and user.
*groups*. *groups* must be a sequence, and each element must be an integer
identifying a group. This operation is typically available only to the superuser.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. note:: On macOS, the length of *groups* may not exceed the
system-defined maximum number of effective group ids, typically 16.
@@ -649,7 +649,7 @@ process and user.
Call the system call :c:func:`!setpgrp` or ``setpgrp(0, 0)`` depending on
which version is implemented (if any). See the Unix manual for the semantics.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setpgid(pid, pgrp, /)
@@ -658,7 +658,7 @@ process and user.
process with id *pid* to the process group with id *pgrp*. See the Unix manual
for the semantics.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setpriority(which, who, priority)
@@ -675,7 +675,7 @@ process and user.
*priority* is a value in the range -20 to 19. The default priority is 0;
lower priorities cause more favorable scheduling.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -684,14 +684,14 @@ process and user.

Set the current process's real and effective group ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setresgid(rgid, egid, sgid, /)

Set the current process's real, effective, and saved group ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.2

@@ -700,7 +700,7 @@ process and user.

Set the current process's real, effective, and saved user ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.2

@@ -709,21 +709,21 @@ process and user.

Set the current process's real and effective user ids.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: getsid(pid, /)

Call the system call :c:func:`!getsid`. See the Unix manual for the semantics.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setsid()

Call the system call :c:func:`!setsid`. See the Unix manual for the semantics.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: setuid(uid, /)
@@ -732,7 +732,7 @@ process and user.

Set the current process's user id.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. placed in this section since it relates to errno.... a little weak
@@ -755,8 +755,8 @@ process and user.

Set the current numeric umask and return the previous umask.

- The function is a stub on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is a stub on WASI, see :ref:`wasm-availability` for more
+ information.


.. function:: uname()
@@ -1008,8 +1008,8 @@ as internal buffering of data.

.. availability:: Unix, Windows.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

.. versionchanged:: 3.13
Added support on Windows.
@@ -1026,8 +1026,8 @@ as internal buffering of data.

.. availability:: Unix.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.


.. function:: fdatasync(fd)
@@ -1117,8 +1117,8 @@ as internal buffering of data.

.. availability:: Unix, Windows.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

On Windows, this function is limited to pipes.

@@ -1136,7 +1136,7 @@ as internal buffering of data.

Calls the C standard library function :c:func:`grantpt`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.13

@@ -1180,7 +1180,7 @@ as internal buffering of data.
Make the calling process a session leader; make the tty the controlling tty,
the stdin, the stdout, and the stderr of the calling process; close fd.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.11

@@ -1364,7 +1364,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
descriptors are :ref:`non-inheritable <fd_inheritance>`. For a (slightly) more
portable approach, use the :mod:`pty` module.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.4
The new file descriptors are now non-inheritable.
@@ -1390,7 +1390,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
Return a pair of file descriptors ``(r, w)`` usable for reading and writing,
respectively.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -1400,7 +1400,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
Ensures that enough disk space is allocated for the file specified by *fd*
starting from *offset* and continuing for *len* bytes.

- .. availability:: Unix, not Emscripten.
+ .. availability:: Unix.

.. versionadded:: 3.3

@@ -1460,7 +1460,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
If the value :data:`O_CLOEXEC` is available on the system, it is added to
*oflag*.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.13

@@ -1532,7 +1532,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
it is available; otherwise, the C standard library function
:c:func:`ptsname`, which is not guaranteed to be thread-safe, is called.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.13

@@ -1659,7 +1659,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
Cross-platform applications should not use *headers*, *trailers* and *flags*
arguments.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. note::

@@ -1679,7 +1679,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
Parameters to the :func:`sendfile` function, if the implementation supports
them.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.3

@@ -1688,7 +1688,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
Parameter to the :func:`sendfile` function, if the implementation supports
it. The data won't be cached in the virtual memory and will be freed afterwards.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.11

@@ -1702,8 +1702,8 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo

.. availability:: Unix, Windows.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

On Windows, this function is limited to pipes.

@@ -1797,7 +1797,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo

Calls the C standard library function :c:func:`unlockpt`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionadded:: 3.13

@@ -1898,8 +1898,7 @@ Using the :mod:`subprocess` module, all file descriptors except standard
streams are closed, and inheritable handles are only inherited if the
*close_fds* parameter is ``False``.

-On WebAssembly platforms ``wasm32-emscripten`` and ``wasm32-wasi``, the file
-descriptor cannot be modified.
+On WebAssembly platforms, the file descriptor cannot be modified.

.. function:: get_inheritable(fd, /)

@@ -2085,7 +2084,7 @@ features:

.. audit-event:: os.chflags path,flags os.chflags

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.3
Added the *follow_symlinks* parameter.
@@ -2131,8 +2130,8 @@ features:
constants or a corresponding integer value). All other bits are ignored.
The default value of *follow_symlinks* is ``False`` on Windows.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

.. audit-event:: os.chmod path,mode,dir_fd os.chmod

@@ -2164,8 +2163,8 @@ features:

.. availability:: Unix.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

.. versionadded:: 3.3
Added support for specifying *path* as an open file descriptor,
@@ -2179,7 +2178,7 @@ features:

Change the root directory of the current process to *path*.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.6
Accepts a :term:`path-like object`.
@@ -2219,7 +2218,7 @@ features:

.. audit-event:: os.chflags path,flags os.lchflags

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.6
Accepts a :term:`path-like object`.
@@ -2269,7 +2268,7 @@ features:

.. audit-event:: os.link src,dst,src_dir_fd,dst_dir_fd os.link

- .. availability:: Unix, Windows, not Emscripten.
+ .. availability:: Unix, Windows.

.. versionchanged:: 3.2
Added Windows support.
@@ -2505,7 +2504,7 @@ features:
FIFO for reading, and the client opens it for writing. Note that :func:`mkfifo`
doesn't open the FIFO --- it just creates the rendezvous point.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.3
Added the *dir_fd* parameter.
@@ -2527,7 +2526,7 @@ features:
This function can also support :ref:`paths relative to directory descriptors
<dir_fd>`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

.. versionchanged:: 3.3
Added the *dir_fd* parameter.
@@ -3449,8 +3448,8 @@ features:

.. availability:: Unix, Windows.

- The function is limited on Emscripten and WASI, see
- :ref:`wasm-availability` for more information.
+ The function is limited on WASI, see :ref:`wasm-availability` for more
+ information.

.. versionchanged:: 3.2
Added support for Windows 6.0 (Vista) symbolic links.
@@ -4276,7 +4275,7 @@ to be ignored.

.. audit-event:: os.exec path,args,env os.execl

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.

.. versionchanged:: 3.3
Added support for specifying *path* as an open file descriptor
@@ -4319,49 +4318,49 @@ written in Python, such as a mail server's external command delivery program.
Exit code that means the command was used incorrectly, such as when the wrong
number of arguments are given.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_DATAERR

Exit code that means the input data was incorrect.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_NOINPUT

Exit code that means an input file did not exist or was not readable.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_NOUSER

Exit code that means a specified user did not exist.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_NOHOST

Exit code that means a specified host did not exist.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_UNAVAILABLE

Exit code that means that a required service is unavailable.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_SOFTWARE

Exit code that means an internal software error was detected.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_OSERR
@@ -4369,7 +4368,7 @@ written in Python, such as a mail server's external command delivery program.
Exit code that means an operating system error was detected, such as the
inability to fork or create a pipe.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_OSFILE
@@ -4377,21 +4376,21 @@ written in Python, such as a mail server's external command delivery program.
Exit code that means some system file did not exist, could not be opened, or had
some other kind of error.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_CANTCREAT

Exit code that means a user specified output file could not be created.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_IOERR

Exit code that means that an error occurred while doing I/O on some file.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_TEMPFAIL
@@ -4400,7 +4399,7 @@ written in Python, such as a mail server's external command delivery program.
that may not really be an error, such as a network connection that couldn't be
made during a retryable operation.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_PROTOCOL
@@ -4408,7 +4407,7 @@ written in Python, such as a mail server's external command delivery program.
Exit code that means that a protocol exchange was illegal, invalid, or not
understood.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_NOPERM
@@ -4416,21 +4415,21 @@ written in Python, such as a mail server's external command delivery program.
Exit code that means that there were insufficient permissions to perform the
operation (but not intended for file system problems).

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_CONFIG

Exit code that means that some kind of configuration error occurred.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. data:: EX_NOTFOUND

Exit code that means something like "an entry was not found".

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: fork()
@@ -4479,7 +4478,7 @@ written in Python, such as a mail server's external command delivery program.
for technical details of why we're surfacing this longstanding
platform compatibility problem to developers.

- .. availability:: POSIX, not Emscripten, not WASI.
+ .. availability:: POSIX, not WASI, not iOS.


.. function:: forkpty()
@@ -4506,7 +4505,7 @@ written in Python, such as a mail server's external command delivery program.
threads, this now raises a :exc:`DeprecationWarning`. See the
longer explanation on :func:`os.fork`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: kill(pid, sig, /)
@@ -4530,7 +4529,7 @@ written in Python, such as a mail server's external command delivery program.

.. audit-event:: os.kill pid,sig os.kill

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.

.. versionchanged:: 3.2
Added Windows support.
@@ -4546,14 +4545,14 @@ written in Python, such as a mail server's external command delivery program.

.. audit-event:: os.killpg pgid,sig os.killpg

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: nice(increment, /)

Add *increment* to the process's "niceness". Return the new niceness.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.


.. function:: pidfd_open(pid, flags=0)
@@ -4583,7 +4582,7 @@ written in Python, such as a mail server's external command delivery program.
Lock program segments into memory. The value of *op* (defined in
``<sys/lock.h>``) determines which segments are locked.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: popen(cmd, mode='r', buffering=-1)
@@ -4615,7 +4614,7 @@ written in Python, such as a mail server's external command delivery program.
documentation for more powerful ways to manage and communicate with
subprocesses.

- .. availability:: not Emscripten, not WASI.
+ .. availability:: not WASI, not iOS.

.. note::
The :ref:`Python UTF-8 Mode <utf8-mode>` affects encodings used
@@ -4723,7 +4722,7 @@ written in Python, such as a mail server's external command delivery program.
``os.POSIX_SPAWN_CLOSEFROM`` is available on platforms where
:c:func:`!posix_spawn_file_actions_addclosefrom_np` exists.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. function:: posix_spawnp(path, argv, env, *, file_actions=None, \
setpgroup=None, resetids=False, setsid=False, setsigmask=(), \
@@ -4739,7 +4738,7 @@ written in Python, such as a mail server's external command delivery program.

.. versionadded:: 3.8

- .. availability:: POSIX, not Emscripten, not WASI.
+ .. availability:: POSIX, not WASI, not iOS.

See :func:`posix_spawn` documentation.

@@ -4772,7 +4771,7 @@ written in Python, such as a mail server's external command delivery program.

There is no way to unregister a function.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. versionadded:: 3.7

@@ -4841,7 +4840,7 @@ written in Python, such as a mail server's external command delivery program.

.. audit-event:: os.spawn mode,path,args,env os.spawnl

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.

:func:`spawnlp`, :func:`spawnlpe`, :func:`spawnvp`
and :func:`spawnvpe` are not available on Windows. :func:`spawnle` and
@@ -4965,7 +4964,7 @@ written in Python, such as a mail server's external command delivery program.

.. audit-event:: os.system command os.system

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.


.. function:: times()
@@ -5009,7 +5008,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exit code.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. seealso::

@@ -5043,7 +5042,7 @@ written in Python, such as a mail server's external command delivery program.
Otherwise, if there are no matching children
that could be waited for, :exc:`ChildProcessError` is raised.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. versionadded:: 3.3

@@ -5084,7 +5083,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exit code.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.

.. versionchanged:: 3.5
If the system call is interrupted and the signal handler does not raise an
@@ -5104,7 +5103,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exitcode.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: wait4(pid, options)
@@ -5118,7 +5117,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exitcode.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. data:: P_PID
@@ -5135,7 +5134,7 @@ written in Python, such as a mail server's external command delivery program.
* :data:`!P_PIDFD` - wait for the child identified by the file descriptor
*id* (a process file descriptor created with :func:`pidfd_open`).

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. note:: :data:`!P_PIDFD` is only available on Linux >= 5.4.

@@ -5150,7 +5149,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitid` causes child processes to be reported if they have been
continued from a job control stop since they were last reported.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. data:: WEXITED
@@ -5161,7 +5160,7 @@ written in Python, such as a mail server's external command delivery program.
The other ``wait*`` functions always report children that have terminated,
so this option is not available for them.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. versionadded:: 3.3

@@ -5173,7 +5172,7 @@ written in Python, such as a mail server's external command delivery program.

This option is not available for the other ``wait*`` functions.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. versionadded:: 3.3

@@ -5186,7 +5185,7 @@ written in Python, such as a mail server's external command delivery program.

This option is not available for :func:`waitid`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. data:: WNOHANG
@@ -5195,7 +5194,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`waitid` to return right away if no child process status is available
immediately.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. data:: WNOWAIT
@@ -5205,7 +5204,7 @@ written in Python, such as a mail server's external command delivery program.

This option is not available for the other ``wait*`` functions.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. data:: CLD_EXITED
@@ -5218,7 +5217,7 @@ written in Python, such as a mail server's external command delivery program.
These are the possible values for :attr:`!si_code` in the result returned by
:func:`waitid`.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. versionadded:: 3.3

@@ -5253,7 +5252,7 @@ written in Python, such as a mail server's external command delivery program.
:func:`WIFEXITED`, :func:`WEXITSTATUS`, :func:`WIFSIGNALED`,
:func:`WTERMSIG`, :func:`WIFSTOPPED`, :func:`WSTOPSIG` functions.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI, not iOS.

.. versionadded:: 3.9

@@ -5269,7 +5268,7 @@ used to determine the disposition of a process.

This function should be employed only if :func:`WIFSIGNALED` is true.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WIFCONTINUED(status)
@@ -5280,7 +5279,7 @@ used to determine the disposition of a process.

See :data:`WCONTINUED` option.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WIFSTOPPED(status)
@@ -5292,14 +5291,14 @@ used to determine the disposition of a process.
done using :data:`WUNTRACED` option or when the process is being traced (see
:manpage:`ptrace(2)`).

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.

.. function:: WIFSIGNALED(status)

Return ``True`` if the process was terminated by a signal, otherwise return
``False``.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WIFEXITED(status)
@@ -5308,7 +5307,7 @@ used to determine the disposition of a process.
by calling ``exit()`` or ``_exit()``, or by returning from ``main()``;
otherwise return ``False``.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WEXITSTATUS(status)
@@ -5317,7 +5316,7 @@ used to determine the disposition of a process.

This function should be employed only if :func:`WIFEXITED` is true.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WSTOPSIG(status)
@@ -5326,7 +5325,7 @@ used to determine the disposition of a process.

This function should be employed only if :func:`WIFSTOPPED` is true.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


.. function:: WTERMSIG(status)
@@ -5335,7 +5334,7 @@ used to determine the disposition of a process.

This function should be employed only if :func:`WIFSIGNALED` is true.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI, not iOS.


Interface to the scheduler
diff --git a/Doc/library/pwd.rst b/Doc/library/pwd.rst
index dbe68cd14ec4d4..a6c6d79b60b20a 100644
--- a/Doc/library/pwd.rst
+++ b/Doc/library/pwd.rst
@@ -10,7 +10,7 @@
This module provides access to the Unix user account and password database. It
is available on all Unix versions.

-.. availability:: Unix, not Emscripten, not WASI.
+.. availability:: Unix, not WASI, not iOS.

Password database entries are reported as a tuple-like object, whose attributes
correspond to the members of the ``passwd`` structure (Attribute field below,
diff --git a/Doc/library/readline.rst b/Doc/library/readline.rst
index 54c6d9f3b32b1a..8f8718ec51c41b 100644
--- a/Doc/library/readline.rst
+++ b/Doc/library/readline.rst
@@ -24,6 +24,8 @@ in the GNU Readline manual for information about the format and
allowable constructs of that file, and the capabilities of the
Readline library in general.

+.. include:: ../includes/wasm-ios-notavail.rst
+
.. note::

The underlying Readline library API may be implemented by
diff --git a/Doc/library/resource.rst b/Doc/library/resource.rst
index 389a63f089d850..4fea8d5cb718c1 100644
--- a/Doc/library/resource.rst
+++ b/Doc/library/resource.rst
@@ -13,7 +13,7 @@
This module provides basic mechanisms for measuring and controlling system
resources utilized by a program.

-.. availability:: Unix, not Emscripten, not WASI.
+.. availability:: Unix, not WASI.

Symbolic constants are used to specify particular system resources and to
request usage information about either the current process or its children.
diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst
index 85a073aad233ac..05ef45c123b02e 100644
--- a/Doc/library/signal.rst
+++ b/Doc/library/signal.rst
@@ -26,9 +26,9 @@ explicitly reset (Python emulates the BSD style interface regardless of the
underlying implementation), with the exception of the handler for
:const:`SIGCHLD`, which follows the underlying implementation.

-On WebAssembly platforms ``wasm32-emscripten`` and ``wasm32-wasi``, signals
-are emulated and therefore behave differently. Several functions and signals
-are not available on these platforms.
+On WebAssembly platforms, signals are emulated and therefore behave
+differently. Several functions and signals are not available on these
+platforms.

Execution of Python signal handlers
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 3a931e25de91e5..76af783c6292f9 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -1213,7 +1213,7 @@ The :mod:`socket` module also offers various network-related services:
buffer. Raises :exc:`OverflowError` if *length* is outside the
permissible range of values.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

Most Unix platforms.

@@ -1236,7 +1236,7 @@ The :mod:`socket` module also offers various network-related services:
amount of ancillary data that can be received, since additional
data may be able to fit into the padding area.

- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, not WASI.

most Unix platforms.

@@ -1276,7 +1276,7 @@ The :mod:`socket` module also offers various network-related services:
(index int, name string) tuples.
:exc:`OSError` if the system call fails.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

.. versionadded:: 3.3

@@ -1303,7 +1303,7 @@ The :mod:`socket` module also offers various network-related services:
interface name.
:exc:`OSError` if no interface with the given name exists.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

.. versionadded:: 3.3

@@ -1320,7 +1320,7 @@ The :mod:`socket` module also offers various network-related services:
interface index number.
:exc:`OSError` if no interface with the given index exists.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

.. versionadded:: 3.3

@@ -1337,7 +1337,7 @@ The :mod:`socket` module also offers various network-related services:
The *fds* parameter is a sequence of file descriptors.
Consult :meth:`~socket.sendmsg` for the documentation of these parameters.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

Unix platforms supporting :meth:`~socket.sendmsg`
and :const:`SCM_RIGHTS` mechanism.
@@ -1351,7 +1351,7 @@ The :mod:`socket` module also offers various network-related services:
Return ``(msg, list(fds), flags, addr)``.
Consult :meth:`~socket.recvmsg` for the documentation of these parameters.

- .. availability:: Unix, Windows, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not WASI.

Unix platforms supporting :meth:`~socket.sendmsg`
and :const:`SCM_RIGHTS` mechanism.
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
index 1dcfea58a8e89f..8f6751cb11af2a 100644
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -25,7 +25,7 @@ modules and functions can be found in the following sections.

:pep:`324` -- PEP proposing the subprocess module

-.. include:: ../includes/wasm-notavail.rst
+.. include:: ../includes/wasm-ios-notavail.rst

Using the :mod:`subprocess` Module
----------------------------------
diff --git a/Doc/library/syslog.rst b/Doc/library/syslog.rst
index 7b27fc7e85b62d..30bf3f09a24d42 100644
--- a/Doc/library/syslog.rst
+++ b/Doc/library/syslog.rst
@@ -11,7 +11,7 @@ This module provides an interface to the Unix ``syslog`` library routines.
Refer to the Unix manual pages for a detailed description of the ``syslog``
facility.

-.. availability:: Unix, not Emscripten, not WASI.
+.. availability:: Unix, not WASI, not iOS.

This module wraps the system ``syslog`` family of routines. A pure Python
library that can speak to a syslog server is available in the
diff --git a/Doc/library/venv.rst b/Doc/library/venv.rst
index a4273f97b7a8db..ecb01b352e8cbc 100644
--- a/Doc/library/venv.rst
+++ b/Doc/library/venv.rst
@@ -56,7 +56,7 @@ See :pep:`405` for more background on Python virtual environments.
`Python Packaging User Guide: Creating and using virtual environments
<https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/#create-and-use-virtual-environments>`__

-.. include:: ../includes/wasm-notavail.rst
+.. include:: ../includes/wasm-ios-notavail.rst

Creating virtual environments
-----------------------------
diff --git a/Doc/tools/extensions/pyspecific.py b/Doc/tools/extensions/pyspecific.py
index 9709c4f4dc54aa..c31d67d2868144 100644
--- a/Doc/tools/extensions/pyspecific.py
+++ b/Doc/tools/extensions/pyspecific.py
@@ -164,7 +164,7 @@ def parse_platforms(self):

Example::

- .. availability:: Windows, Linux >= 4.2, not Emscripten, not WASI
+ .. availability:: Windows, Linux >= 4.2, not WASI

Arguments like "Linux >= 3.17 with glibc >= 2.27" are currently not
parsed into separate tokens.
diff --git a/Doc/using/configure.rst b/Doc/using/configure.rst
index 3db309539d2368..eef0c5022d37af 100644
--- a/Doc/using/configure.rst
+++ b/Doc/using/configure.rst
@@ -881,7 +881,7 @@ Security Options
macOS Options
-------------

-See ``Mac/README.rst``.
+See :source:`Mac/README.rst`.

.. option:: --enable-universalsdk
.. option:: --enable-universalsdk=SDKDIR
@@ -916,6 +916,20 @@ See ``Mac/README.rst``.
Specify the name for the python framework on macOS only valid when
:option:`--enable-framework` is set (default: ``Python``).

+iOS Options
+-----------
+
+See :source:`iOS/README.rst`.
+
+.. option:: --enable-framework=INSTALLDIR
+
+ Create a Python.framework. Unlike macOS, the *INSTALLDIR* argument
+ specifying the installation path is mandatory.
+
+.. option:: --with-framework-name=FRAMEWORK
+
+ Specify the name for the framework (default: ``Python``).
+

Cross Compiling Options
-----------------------
diff --git a/Doc/using/index.rst b/Doc/using/index.rst
index e1a3111f36a44f..f55a12f1ab8a0d 100644
--- a/Doc/using/index.rst
+++ b/Doc/using/index.rst
@@ -18,4 +18,5 @@ interpreter and things that make working with Python easier.
configure.rst
windows.rst
mac.rst
+ ios.rst
editors.rst
diff --git a/Doc/using/ios.rst b/Doc/using/ios.rst
new file mode 100644
index 00000000000000..da8f42048c0faf
--- /dev/null
+++ b/Doc/using/ios.rst
@@ -0,0 +1,314 @@
+.. _using-ios:
+
+===================
+Using Python on iOS
+===================
+
+:Authors:
+ Russell Keith-Magee (2024-03)
+
+Python on iOS is unlike Python on desktop platforms. On a desktop platform,
+Python is generally installed as a system resource that can be used by any user
+of that computer. Users then interact with Python by running a :program:`python`
+executable and entering commands at an interactive prompt, or by running a
+Python script.
+
+On iOS, there is no concept of installing as a system resource. The only unit
+of software distribution is an "app". There is also no console where you could
+run a :program:`python` executable, or interact with a Python REPL.
+
+As a result, the only way you can use Python on iOS is in embedded mode - that
+is, by writing a native iOS application, and embedding a Python interpreter
+using ``libPython``, and invoking Python code using the :ref:`Python embedding
+API <embedding>`. The full Python interpreter, the standard library, and all
+your Python code is then packaged as a standalone bundle that can be
+distributed via the iOS App Store.
+
+If you're looking to experiment for the first time with writing an iOS app in
+Python, projects such as `BeeWare <https://beeware.org>`__ and `Kivy
+<https://kivy.org>`__ will provide a much more approachable user experience.
+These projects manage the complexities associated with getting an iOS project
+running, so you only need to deal with the Python code itself.
+
+Python at runtime on iOS
+========================
+
+Platform identification
+-----------------------
+
+When executing on iOS, ``sys.platform`` will report as ``ios``. This value will
+be returned on an iPhone or iPad, regardless of whether the app is running on
+the simulator or a physical device.
+
+Information about the specific runtime environment, including the iOS version,
+device model, and whether the device is a simulator, can be obtained using
+:func:`platform.ios_ver()`. :func:`platform.system()` will report ``iOS`` or
+``iPadOS``, depending on the device.
+
+:func:`os.uname()` reports kernel-level details; it will report a name of
+``Darwin``.
+
+Standard library availability
+-----------------------------
+
+The Python standard library has some notable omissions and restrictions on
+iOS. See the :ref:`API availability guide for iOS <iOS-availability>` for
+details.
+
+Binary extension modules
+------------------------
+
+One notable difference about iOS as a platform is that App Store distribution
+imposes hard requirements on the packaging of an application. One of these
+requirements governs how binary extension modules are distributed.
+
+The iOS App Store requires that *all* binary modules in an iOS app must be
+dynamic libraries, contained in a framework with appropriate metadata, stored
+in the ``Frameworks`` folder of the packaged app. There can be only a single
+binary per framework, and there can be no executable binary material outside
+the ``Frameworks`` folder.
+
+This conflicts with the usual Python approach for distributing binaries, which
+allows a binary extension module to be loaded from any location on
+``sys.path``. To ensure compliance with App Store policies, an iOS project must
+post-process any Python packages, converting ``.so`` binary modules into
+individual standalone frameworks with appropriate metadata and signing. For
+details on how to perform this post-processing, see the guide for :ref:`adding
+Python to your project <adding-ios>`.
+
+To help Python discover binaries in their new location, the original ``.so``
+file on ``sys.path`` is replaced with a ``.fwork`` file. This file is a text
+file containing the location of the framework binary, relative to the app
+bundle. To allow the framework to resolve back to the original location, the
+framework must contain a ``.origin`` file that contains the location of the
+``.fwork`` file, relative to the app bundle.
+
+For example, consider the case of an import ``from foo.bar import _whiz``,
+where ``_whiz`` is implemented with the binary module
+``sources/foo/bar/_whiz.abi3.so``, with ``sources`` being the location
+registered on ``sys.path``, relative to the application bundle. This module
+*must* be distributed as ``Frameworks/foo.bar._whiz.framework/foo.bar._whiz``
+(creating the framework name from the full import path of the module), with an
+``Info.plist`` file in the ``.framework`` directory identifying the binary as a
+framework. The ``foo.bar._whiz`` module would be represented in the original
+location with a ``sources/foo/bar/_whiz.abi3.fwork`` marker file, containing
+the path ``Frameworks/foo.bar._whiz/foo.bar._whiz``. The framework would also
+contain ``Frameworks/foo.bar._whiz.framework/foo.bar._whiz.origin``, containing
+the path to the ``.fwork`` file.
+
+When running on iOS, the Python interpreter will install an
+:class:`~importlib.machinery.AppleFrameworkLoader` that is able to read and
+import ``.fwork`` files. Once imported, the ``__file__`` attribute of the
+binary module will report as the location of the ``.fwork`` file. However, the
+:class:`~importlib.machinery.ModuleSpec` for the loaded module will report the
+``origin`` as the location of the binary in the framework folder.
+
+Compiler stub binaries
+----------------------
+
+Xcode doesn't expose explicit compilers for iOS; instead, it uses an ``xcrun``
+script that resolves to a full compiler path (e.g., ``xcrun --sdk iphoneos
+clang`` to get the ``clang`` for an iPhone device). However, using this script
+poses two problems:
+
+* The output of ``xcrun`` includes paths that are machine specific, resulting
+ in a sysconfig module that cannot be shared between users; and
+
+* It results in ``CC``/``CPP``/``LD``/``AR`` definitions that include spaces.
+ There is a lot of C ecosystem tooling that assumes that you can split a
+ command line at the first space to get the path to the compiler executable;
+ this isn't the case when using ``xcrun``.
+
+To avoid these problems, Python provided stubs for these tools. These stubs are
+shell script wrappers around the underingly ``xcrun`` tools, distributed in a
+``bin`` folder distributed alongside the compiled iOS framework. These scripts
+are relocatable, and will always resolve to the appropriate local system paths.
+By including these scripts in the bin folder that accompanies a framework, the
+contents of the ``sysconfig`` module becomes useful for end-users to compile
+their own modules. When compiling third-party Python modules for iOS, you
+should ensure these stub binaries are on your path.
+
+Installing Python on iOS
+========================
+
+Tools for building iOS apps
+---------------------------
+
+Building for iOS requires the use of Apple's Xcode tooling. It is strongly
+recommended that you use the most recent stable release of Xcode. This will
+require the use of the most (or second-most) recently released macOS version,
+as Apple does not maintain Xcode for older macOS versions. The Xcode Command
+Line Tools are not sufficient for iOS development; you need a *full* Xcode
+install.
+
+If you want to run your code on the iOS simulator, you'll also need to install
+an iOS Simulator Platform. You should be prompted to select an iOS Simulator
+Platform when you first run Xcode. Alternatively, you can add an iOS Simulator
+Platform by selecting from the Platforms tab of the Xcode Settings panel.
+
+.. _adding-ios:
+
+Adding Python to an iOS project
+-------------------------------
+
+Python can be added to any iOS project, using either Swift or Objective C. The
+following examples will use Objective C; if you are using Swift, you may find a
+library like `PythonKit <https://github.com/pvieito/PythonKit>`__ to be
+helpful.
+
+To add Python to an iOS Xcode project:
+
+1. Build or obtain a Python ``XCFramework``. See the instructions in
+ :source:`iOS/README.rst` (in the CPython source distribution) for details on
+ how to build a Python ``XCFramework``. At a minimum, you will need a build
+ that supports ``arm64-apple-ios``, plus one of either
+ ``arm64-apple-ios-simulator`` or ``x86_64-apple-ios-simulator``.
+
+2. Drag the ``XCframework`` into your iOS project. In the following
+ instructions, we'll assume you've dropped the ``XCframework`` into the root
+ of your project; however, you can use any other location that you want by
+ adjusting paths as needed.
+
+3. Drag the ``iOS/Resources/dylib-Info-template.plist`` file into your project,
+ and ensure it is associated with the app target.
+
+4. Add your application code as a folder in your Xcode project. In the
+ following instructions, we'll assume that your user code is in a folder
+ named ``app`` in the root of your project; you can use any other location by
+ adjusting paths as needed. Ensure that this folder is associated with your
+ app target.
+
+5. Select the app target by selecting the root node of your Xcode project, then
+ the target name in the sidebar that appears.
+
+6. In the "General" settings, under "Frameworks, Libraries and Embedded
+ Content", add ``Python.xcframework``, with "Embed & Sign" selected.
+
+7. In the "Build Settings" tab, modify the following:
+
+ - Build Options
+
+ * User Script Sandboxing: No
+ * Enable Testability: Yes
+
+ - Search Paths
+
+ * Framework Search Paths: ``$(PROJECT_DIR)``
+ * Header Search Paths: ``"$(BUILT_PRODUCTS_DIR)/Python.framework/Headers"``
+
+ - Apple Clang - Warnings - All languages
+
+ * Quoted Include In Framework Header: No
+
+8. Add a build step that copies the Python standard library into your app. In
+ the "Build Phases" tab, add a new "Run Script" build step *before* the
+ "Embed Frameworks" step, but *after* the "Copy Bundle Resources" step. Name
+ the step "Install Target Specific Python Standard Library", disable the
+ "Based on dependency analysis" checkbox, and set the script content to:
+
+ .. code-block:: bash
+
+ set -e
+
+ mkdir -p "$CODESIGNING_FOLDER_PATH/python/lib"
+ if [ "$EFFECTIVE_PLATFORM_NAME" = "-iphonesimulator" ]; then
+ echo "Installing Python modules for iOS Simulator"
+ rsync -au --delete "$PROJECT_DIR/Python.xcframework/ios-arm64_x86_64-simulator/lib/" "$CODESIGNING_FOLDER_PATH/python/lib/"
+ else
+ echo "Installing Python modules for iOS Device"
+ rsync -au --delete "$PROJECT_DIR/Python.xcframework/ios-arm64/lib/" "$CODESIGNING_FOLDER_PATH/python/lib/"
+ fi
+
+ Note that the name of the simulator "slice" in the XCframework may be
+ different, depending the CPU architectures your ``XCFramework`` supports.
+
+9. Add a second build step that processes the binary extension modules in the
+ standard library into "Framework" format. Add a "Run Script" build step
+ *directly after* the one you added in step 8, named "Prepare Python Binary
+ Modules". It should also have "Based on dependency analysis" unchecked, with
+ the following script content:
+
+ .. code-block:: bash
+
+ set -e
+
+ install_dylib () {
+ INSTALL_BASE=$1
+ FULL_EXT=$2
+
+ # The name of the extension file
+ EXT=$(basename "$FULL_EXT")
+ # The location of the extension file, relative to the bundle
+ RELATIVE_EXT=${FULL_EXT#$CODESIGNING_FOLDER_PATH/}
+ # The path to the extension file, relative to the install base
+ PYTHON_EXT=${RELATIVE_EXT/$INSTALL_BASE/}
+ # The full dotted name of the extension module, constructed from the file path.
+ FULL_MODULE_NAME=$(echo $PYTHON_EXT | cut -d "." -f 1 | tr "/" ".");
+ # A bundle identifier; not actually used, but required by Xcode framework packaging
+ FRAMEWORK_BUNDLE_ID=$(echo $PRODUCT_BUNDLE_IDENTIFIER.$FULL_MODULE_NAME | tr "_" "-")
+ # The name of the framework folder.
+ FRAMEWORK_FOLDER="Frameworks/$FULL_MODULE_NAME.framework"
+
+ # If the framework folder doesn't exist, create it.
+ if [ ! -d "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER" ]; then
+ echo "Creating framework for $RELATIVE_EXT"
+ mkdir -p "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER"
+ cp "$CODESIGNING_FOLDER_PATH/dylib-Info-template.plist" "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER/Info.plist"
+ plutil -replace CFBundleExecutable -string "$FULL_MODULE_NAME" "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER/Info.plist"
+ plutil -replace CFBundleIdentifier -string "$FRAMEWORK_BUNDLE_ID" "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER/Info.plist"
+ fi
+
+ echo "Installing binary for $FRAMEWORK_FOLDER/$FULL_MODULE_NAME"
+ mv "$FULL_EXT" "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER/$FULL_MODULE_NAME"
+ # Create a placeholder .fwork file where the .so was
+ echo "$FRAMEWORK_FOLDER/$FULL_MODULE_NAME" > ${FULL_EXT%.so}.fwork
+ # Create a back reference to the .so file location in the framework
+ echo "${RELATIVE_EXT%.so}.fwork" > "$CODESIGNING_FOLDER_PATH/$FRAMEWORK_FOLDER/$FULL_MODULE_NAME.origin"
+ }
+
+ PYTHON_VER=$(ls -1 "$CODESIGNING_FOLDER_PATH/python/lib")
+ echo "Install Python $PYTHON_VER standard library extension modules..."
+ find "$CODESIGNING_FOLDER_PATH/python/lib/$PYTHON_VER/lib-dynload" -name "*.so" | while read FULL_EXT; do
+ install_dylib python/lib/$PYTHON_VER/lib-dynload/ "$FULL_EXT"
+ done
+
+ # Clean up dylib template
+ rm -f "$CODESIGNING_FOLDER_PATH/dylib-Info-template.plist"
+
+ echo "Signing frameworks as $EXPANDED_CODE_SIGN_IDENTITY_NAME ($EXPANDED_CODE_SIGN_IDENTITY)..."
+ find "$CODESIGNING_FOLDER_PATH/Frameworks" -name "*.framework" -exec /usr/bin/codesign --force --sign "$EXPANDED_CODE_SIGN_IDENTITY" ${OTHER_CODE_SIGN_FLAGS:-} -o runtime --timestamp=none --preserve-metadata=identifier,entitlements,flags --generate-entitlement-der "{}" \;
+
+10. Add Objective C code to initialize and use a Python interpreter in embedded
+ mode. You should ensure that:
+
+ * :c:member:`UTF-8 mode <PyPreConfig.utf8_mode>` is *enabled*;
+ * :c:member:`Buffered stdio <PyConfig.buffered_stdio>` is *disabled*;
+ * :c:member:`Writing bytecode <PyConfig.write_bytecode>` is *disabled*;
+ * :c:member:`Signal handlers <PyConfig.install_signal_handlers>` are *enabled*;
+ * ``PYTHONHOME`` for the interpreter is configured to point at the
+ ``python`` subfolder of your app's bundle; and
+ * The ``PYTHONPATH`` for the interpreter includes:
+
+ - the ``python/lib/python3.X`` subfolder of your app's bundle,
+ - the ``python/lib/python3.X/lib-dynload`` subfolder of your app's bundle, and
+ - the ``app`` subfolder of your app's bundle
+
+ Your app's bundle location can be determined using ``[[NSBundle mainBundle]
+ resourcePath]``.
+
+Steps 8, 9 and 10 of these instructions assume that you have a single folder of
+pure Python application code, named ``app``. If you have third-party binary
+modules in your app, some additional steps will be required:
+
+* You need to ensure that any folders containing third-party binaries are
+ either associated with the app target, or copied in as part of step 8. Step 8
+ should also purge any binaries that are not appropriate for the platform a
+ specific build is targetting (i.e., delete any device binaries if you're
+ building app app targeting the simulator).
+
+* Any folders that contain third-party binaries must be processed into
+ framework form by step 9. The invocation of ``install_dylib`` that processes
+ the ``lib-dynload`` folder can be copied and adapted for this purpose.
+
+* If you're using a separate folder for third-party packages, ensure that folder
+ is included as part of the ``PYTHONPATH`` configuration in step 10.
diff --git a/Misc/NEWS.d/next/Documentation/2024-03-20-12-41-47.gh-issue-114099.ad_Ck9.rst b/Misc/NEWS.d/next/Documentation/2024-03-20-12-41-47.gh-issue-114099.ad_Ck9.rst
new file mode 100644
index 00000000000000..c6f403ee899162
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2024-03-20-12-41-47.gh-issue-114099.ad_Ck9.rst
@@ -0,0 +1 @@
+Add an iOS platform guide, and flag modules not available on iOS.
diff --git a/Misc/NEWS.d/next/Documentation/2024-03-20-15-12-37.gh-issue-115977.IMLi6K.rst b/Misc/NEWS.d/next/Documentation/2024-03-20-15-12-37.gh-issue-115977.IMLi6K.rst
new file mode 100644
index 00000000000000..5f04e93d9a862b
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2024-03-20-15-12-37.gh-issue-115977.IMLi6K.rst
@@ -0,0 +1 @@
+Remove compatibilty references to Emscripten.
diff --git a/iOS/README.rst b/iOS/README.rst
index b67199e66f95b3..df429b64cec77f 100644
--- a/iOS/README.rst
+++ b/iOS/README.rst
@@ -182,7 +182,10 @@ This can be done by defining the ``LIBLZMA_CFLAGS``, ``LIBLZMA_LIBS``,
``BZIP2_CFLAGS``, ``BZIP2_LIBS``, ``LIBFFI_CFLAGS``, and ``LIBFFI_LIBS``
environment variables, and the ``--with-openssl`` configure option. Versions of
these libraries pre-compiled for iOS can be found in `this repository
-<https://github.com/beeware/cpython-apple-source-deps/releases>`__.
+<https://github.com/beeware/cpython-apple-source-deps/releases>`__. LibFFI is
+especially important, as many parts of the standard library (including the
+``platform``, ``sysconfig`` and ``webbrowser`` modules) require the use of the
+``ctypes`` module at runtime.

By default, Python will be compiled with an iOS deployment target (i.e., the
minimum supported iOS version) of 12.0. To specify a different deployment
@@ -248,16 +251,11 @@ the XCframework::
cp path/to/iphoneos/bin Python.xcframework/ios-arm64
cp path/to/iphoneos/lib Python.xcframework/ios-arm64

- cp path/to/iphonesimulator/bin Python.xcframework/ios-arm64_x86-64-simulator
- cp path/to/iphonesimulator/lib Python.xcframework/ios-arm64_x86-64-simulator
+ cp path/to/iphonesimulator/bin Python.xcframework/ios-arm64_x86_64-simulator
+ cp path/to/iphonesimulator/lib Python.xcframework/ios-arm64_x86_64-simulator

Note that the name of the architecture-specific slice for the simulator will
-depend on the CPU architecture that you build.
-
-Then, add symbolic links to "common" platform names for each slice::
-
- ln -si ios-arm64 Python.xcframework/iphoneos
- ln -si ios-arm64_x86-64-simulator Python.xcframework/iphonesimulator
+depend on the CPU architecture(s) that you build.

You now have a Python.xcframework that can be used in a project.

@@ -306,6 +304,49 @@ Debugging test failures
The easiest way to diagnose a single test failure is to open the testbed project
in Xcode and run the tests from there using the "Product > Test" menu item.

+To test in Xcode, you must ensure the testbed project has a copy of a compiled
+framework. If you've configured your build with the default install location of
+``iOS/Frameworks``, you can copy from that location into the test project. To
+test on an ARM64 simulator, run::
+
+ $ rm -rf iOS/testbed/Python.xcframework/ios-arm64_x86_64-simulator/*
+ $ cp -r iOS/Frameworks/arm64-iphonesimulator/* iOS/testbed/Python.xcframework/ios-arm64_x86_64-simulator
+
+To test on an x86-64 simulator, run::
+
+ $ rm -rf iOS/testbed/Python.xcframework/ios-arm64_x86_64-simulator/*
+ $ cp -r iOS/Frameworks/x86_64-iphonesimulator/* iOS/testbed/Python.xcframework/ios-arm64_x86_64-simulator
+
+To test on a physical device::
+
+ $ rm -rf iOS/testbed/Python.xcframework/ios-arm64/*
+ $ cp -r iOS/Frameworks/arm64-iphoneos/* iOS/testbed/Python.xcframework/ios-arm64
+
+Alternatively, you can configure your build to install directly into the
+testbed project. For a simulator, use::
+
+ --enable-framework=$(pwd)/iOS/testbed/Python.xcframework/ios-arm64_x86_64-simulator
+
+For a physical device, use::
+
+ --enable-framework=$(pwd)/iOS/testbed/Python.xcframework/ios-arm64
+
+
+Testing on an iOS device
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+To test on an iOS device, the app needs to be signed with known developer
+credentials. To obtain these credentials, you must have an iOS Developer
+account, and your Xcode install will need to be logged into your account (see
+the Accounts tab of the Preferences dialog).
+
+Once the project is open, and you're signed into your Apple Developer account,
+select the root node of the project tree (labeled "iOSTestbed"), then the
+"Signing & Capabilities" tab in the details page. Select a development team
+(this will likely be your own name), and plug in a physical device to your
+macOS machine with a USB cable. You should then be able to select your physical
+device from the list of targets in the pulldown in the Xcode titlebar.
+
Running specific tests
^^^^^^^^^^^^^^^^^^^^^^


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