python / cpython

…eed (GH-16630)

Some objects like Py_None are not initialized with conventional means
that prepare the circular linked list pointers, leaving them unlinked
from the rest of the objects. For those objects, NULL pointers does
not mean that they are freed, so we need to skip the check in those
cases.
(cherry picked from commit 36e33c3)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>

Update Misc/valgrind-python.supp to suppress the false alarm.
(cherry picked from commit d8ef644)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

(cherry picked from commit 558f078)

Co-authored-by: Michael Haas <micha2718l@gmail.com>

(cherry picked from commit ef8844f)

Co-authored-by: Grant Jenks <grant.jenks@gmail.com>

Co-authored-by: Grant Jenks <grant.jenks@gmail.com>

The previous double colon was wrongly place directly after Therefore.
Which produced a block without syntax highlighting. This fixes it
by separating the double colon from the text. As a result, sphinx now
properly highlights the python code.

https://bugs.python.org/issue39348
(cherry picked from commit fad8b56)

Co-authored-by: Oz N Tiram <oz.tiram@noris.de>

…H-17932) (GH-18016)

Since 3.7 `successful` raises a `ValueError` as explained in the next text block from the documentation:

_Changed in version 3.7: If the result is not ready, ValueError is raised instead of AssertionError._

No issue associated with this PR.
Should be backported in 3.7 and 3.8.
(cherry picked from commit dc0284e)


Co-authored-by: Antoine <43954001+awecx@users.noreply.github.com>

Automerge-Triggered-By: @pitrou

(cherry picked from commit b4cdb3f)

Co-authored-by: Kyle Pollina <kylepollina@protonmail.com>

Specify that sys.float_info.min is only the minimum normalized float.
(cherry picked from commit 9362f85)

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

…e. (GH-17960) (GH-17970)

Although the underlying libffi issue remains open, adding these
checks have caused problems in third-party projects which are in
widespread use. See the issue for examples.

The corresponding tests have also been skipped.
(cherry picked from commit c12440c)

…n the AST docs (GH-17172)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
(cherry picked from commit 6680f4a)

Co-authored-by: Batuhan Taşkaya <47358913+isidentical@users.noreply.github.com>

Copying property objects results in a TypeError. Steps to reproduce:

```
>>> import copy
>>> obj = property()
>>> copy.copy(obj)
````

This affects both shallow and deep copying.
My idea for a fix is to add property objects to the list of "atomic" objects in the copy module.
These already include types like functions and type objects.

I also added property objects to the unit tests test_copy_atomic and test_deepcopy_atomic. This is my first PR, and it's highly likely I've made some mistake, so please be kind :)

https://bugs.python.org/issue38293
(cherry picked from commit 9f3fc6c)

Co-authored-by: Guðni Natan Gunnarsson <1493259+GudniNatan@users.noreply.github.com>

* Add test cases for dataclasses.

* Add test for repr output of field.
* Add test for ValueError to be raised when both default and default_factory are passed.
(cherry picked from commit eef1b02)


Co-authored-by: Karthikeyan Singaravelan <tir.karthi@gmail.com>

Automerge-Triggered-By: @ericvsmith

(cherry picked from commit 2e6a8ef)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>

GH-17780)

Correctly parenthesize filter-based statements that contain lambda
expressions in lib2to3.
(cherry picked from commit b821173)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>

…nabledFor (GH-17689) (GH-17898)

(cherry picked from commit 950c679)

(cherry picked from commit ca94677)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

(cherry picked from commit f4800b8)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

https://bugs.python.org/issue39041

Automerge-Triggered-By: @zooba
(cherry picked from commit b1ce22d)

Co-authored-by: Steve Dower <steve.dower@python.org>

(cherry picked from commit a76ba36)

Co-authored-by: Steve Dower <steve.dower@python.org>

(cherry picked from commit d6c08db)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>

(cherry picked from commit abc0c4f)

Co-authored-by: HongWeipeng <961365124@qq.com>

Signed-off-by: Oleg Höfling <oleg.hoefling@gmail.com>
(cherry picked from commit e6ae90d)

Co-authored-by: Oleg Höfling <hoefling@users.noreply.github.com>

tkinter.ttk.Scale().configure([name]) now returns a configuration tuple for name
or a list thereof for all options. Based on patch Giovanni Lombardo.
(cherry picked from commit 5ea7bb2)

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

…H-17618)

No longer import the re module if it is not needed.
(cherry picked from commit 41ec17e)

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

…rue. (GH-17616)

(cherry picked from commit b19c0d7)

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

Ignore leading dots and no longer ignore a trailing newline.
(cherry picked from commit 6a265f0)

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

(cherry picked from commit 3a5de51)

Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>

(cherry picked from commit 32f1443)

Co-authored-by: Ned Deily <nad@python.org>

(cherry picked from commit 946b29e)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

Remove extra space to fix formatting and avoid from splitting text in to strings.

https://bugs.python.org/issue39183
(cherry picked from commit 149175c)

Co-authored-by: Rafael Fontenelle <rffontenelle@users.noreply.github.com>

…H-17773) (GH-17786)

(cherry picked from commit 46abfc1)

(cherry picked from commit ba82ee8)

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

GH-17765)

* [3.7] bpo-38588: Fix possible crashes in dict and list when calling PyObject_RichCompareBool (GH-17734)

Take strong references before calling PyObject_RichCompareBool to protect against the case
where the object dies during the call..
(cherry picked from commit 2d5bf56)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>

* methane's suggestion

methane's suggestion

Co-Authored-By: Inada Naoki <songofacandy@gmail.com>

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

Tag memoryview, range, and tuple as classes, the same as list, etcetera, in
the library manual built-in functions list.
(cherry picked from commit ee9ff05)

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

…) (GH-17759)

Hold strong references to list elements while calling PyObject_RichCompareBool()..
(cherry picked from commit d9e561d)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Co-authored-by: Zackery Spytz <zspytz@gmail.com>