python / cpython

…H-23870)

In Python 2, it was possible to use `except` with a nested tuple, and occasionally natural.  For example, `zope.formlib.interfaces.InputErrors` is a tuple of several exception classes, and one might reasonably think to do something like this:

    try:
        self.getInputValue()
        return True
    except (InputErrors, SomethingElse):
        return False

As of Python 3.0, this raises `TypeError: catching classes that do not inherit from BaseException is not allowed` instead: one must instead either break it up into multiple `except` clauses or flatten the tuple.  However, the reference documentation was never updated to match this new restriction.  Make it clear that the definition is no longer recursive.

Automerge-Triggered-By: GH:ericvsmith
(cherry picked from commit c95f8bc)

Co-authored-by: Colin Watson <cjwatson@debian.org>

Co-authored-by: Colin Watson <cjwatson@debian.org>

…H-23869)

…onfigure (GH-23708) (GH-23866)

Now all platforms use a value for the "EXT_SUFFIX" build variable derived
from SOABI (for instance in FreeBSD, "EXT_SUFFIX" is now ".cpython-310d.so"
instead of ".so"). Previously only Linux, Mac and VxWorks were using a value
for "EXT_SUFFIX" that included "SOABI".

Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
(cherry picked from commit a44ce6c)

Co-authored-by: Matti Picus <matti.picus@gmail.com>

Co-authored-by: Matti Picus <matti.picus@gmail.com>

…pes enabled (GH-23855) (GH-23862)

* Explain when the conversion is not possible with detect_types enabled
(cherry picked from commit 09a36cd)

Co-authored-by: sblondon <sblondon@users.noreply.github.com>

Co-authored-by: sblondon <sblondon@users.noreply.github.com>

…#23852)

(cherry picked from commit b9ced83)

…t root (GH-23781) (GH-23853)

* Tkinter functions and constructors which need a default root window
  raise now RuntimeError with descriptive message instead of obscure
  AttributeError or NameError if it is not created yet or cannot
  be created automatically.

* Add tests for all functions which use default root window.

* Fix import in the pynche script.

(cherry picked from commit 3d569fd)

…H-23844) (GH-23850)

…) (GH-23824)

…GH-13039)

(cherry picked from commit e8d2264)

Co-authored-by: Andre Delfino <adelfino@gmail.com>

… (#23840)

(cherry picked from commit 17ef431)

Co-authored-by: Richard Kojedzinszky <rkojedzinszky@users.noreply.github.com>

Co-authored-by: Richard Kojedzinszky <rkojedzinszky@users.noreply.github.com>

Up until now, the `multiprocessing.pool.ThreadPool` class has gone
undocumented, despite being a public class in multiprocessing that is
included in `multiprocessing.pool.__all__`.
(cherry picked from commit 84ebcf2)

Co-authored-by: Matt Wozniski <mwozniski@bloomberg.net>

…GH-23575)

(cherry picked from commit 886b2e5)

Co-authored-by: Mark Dickinson <mdickinson@enthought.com>

Fix freeze.py tool to use the prope config and library directories.
(cherry picked from commit 1c653f1)

Co-authored-by: Victor Stinner <vstinner@python.org>

Co-authored-by: Victor Stinner <vstinner@python.org>

(cherry picked from commit 40125ab)

Co-authored-by: Irit Katriel <iritkatriel@yahoo.com>

Same as FreeBSD, file descriptors in /dev/fd id from 0 to 63.
(cherry picked from commit 13b865f)

Co-authored-by: David CARLIER <devnexen@gmail.com>

Co-authored-by: David CARLIER <devnexen@gmail.com>

Use shorter timeout and replace send() with sendall().
(cherry picked from commit 79782fe)

Co-authored-by: Victor Stinner <vstinner@python.org>

The existing method is indented one too many times which
makes it look like a sub-method of print_callees().
(cherry picked from commit a6ba2b9)

Co-authored-by: Matthew Suozzo <msuozzo@google.com>

Regression in 8d59eb1.
(cherry picked from commit 051b981)

Co-authored-by: Daniel Hahler <git@thequod.de>

Add the following symbols to python3dll.c:

* PyFrame_GetCode (bpo-40421)
* PyFrame_GetLineNumber (bpo-40421)
* PyObject_CallNoArgs (bpo-37194)
* PyThreadState_GetFrame (bpo-39947)
* PyThreadState_GetID (bpo-39947)
* PyThreadState_GetInterpreter (bpo-39947)

(cherry picked from commit fcc6935)

This is a trivial refactor in preparation for a fix for bpo-38323.
(cherry picked from commit 66d3b58)

Co-authored-by: Chris Jerdonek <chris.jerdonek@gmail.com>

…2654)

(cherry picked from commit 8374d2e)

Co-authored-by: Lisa Roach <lisaroach14@gmail.com>

"uint8_t day" is unsigned and so "day < 0" test is always true.
Remove the test to fix the following warnings on Windows:

modules\_zoneinfo.c(1224): warning C4068: unknown pragma
modules\_zoneinfo.c(1225): warning C4068: unknown pragma
modules\_zoneinfo.c(1227): warning C4068: unknown pragma
(cherry picked from commit aefb69b)

Co-authored-by: Victor Stinner <vstinner@python.org>

Co-authored-by: Victor Stinner <vstinner@python.org>

(cherry picked from commit 5f0fe8e)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

* bpo-42644: Validate values in logging.disable()

Technically make the value of manager a property that checks and convert
values assigned to it properly. This has the side effect of making
`logging.disable` also accept strings representing the various level of
warnings.

We want to validate the type of the disable attribute at assignment
time, as it is later compared to other levels when emitting warnings and
would generate a `TypeError: '>=' not supported between ....` in a
different part of the code base, which can make it difficult to track
down.

When assigned an incorrect value; it will raise a TypeError when the
wrong type, or ValueError if an invalid str.

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
(cherry picked from commit b32d8b4)

Co-authored-by: Matthias Bussonnier <bussonniermatthias@gmail.com>

GH-23281). (GH-23784)

(cherry picked from commit a26215d)

Add sentence to module docstring and import tkinter items.
(cherry picked from commit 6f79e60)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

GH-23714) (GH-23772)

When creating an Enum, `type.__new__` calls `__init_subclass__`, but at that point the members have not been added.

This patch suppresses the initial call, then manually calls the ancestor `__init_subclass__` before returning the new Enum class.
(cherry picked from commit 6bd94de)

…-23748)

private names will raise a DeprecationWarning; in 3.10 they will become normal attributes

Export the Py_FrozenMain() function: fix a Python 3.9.0 regression.
Python 3.9 uses -fvisibility=hidden and the function was not exported
explicitly and so not exported.

(cherry picked from commit b5c7b38)

(cherry picked from commit 68526fe)

Co-authored-by: Angelin BOOZ <9497359+lem2clide@users.noreply.github.com>

…GH-22736) (GH-23747)

(cherry picked from commit 67b769f)

Co-authored-by: Alex Grönholm <alex.gronholm@nextday.fi>

Add positional only args support to lib2to3 pgen2.

This adds 3.8's PEP-570 support to lib2to3's pgen2.  lib2to3, while
being deprecated is still used by things to parse all versions of Python
code today.  We need it to support parsing modern 3.8 and 3.9 constructs.

Also add tests for complex *expr and **expr's.
(cherry picked from commit 42c9f0f)

Co-authored-by: Gregory P. Smith <greg@krypto.org>

…ions.abc and typing (GH-23765)

Backport of GH-23060.