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6 years ago[3.7] bpo-17535: IDLE editor line numbers (GH-14030) 14918/head
Tal Einat [Tue, 23 Jul 2019 13:27:04 +0000 (16:27 +0300)] 
[3.7] bpo-17535: IDLE editor line numbers (GH-14030)

(cherry picked from commit 7123ea009b0b004062d91f69859bddf422c34ab4)

6 years agobpo-33610: validate non-negative integer inputs in IDLE's config (GH-14822)
Miss Islington (bot) [Tue, 23 Jul 2019 10:21:52 +0000 (03:21 -0700)] 
bpo-33610: validate non-negative integer inputs in IDLE's config (GH-14822)

(cherry picked from commit 1ebee37dde5c2aabc8e2d2c7bbe2a69b293133bb)

Co-authored-by: Tal Einat <taleinat@gmail.com>
6 years ago[3.7] Fix typos in docs, comments and test assert messages (GH-14872). (#14901)
Kyle Stanley [Mon, 22 Jul 2019 18:14:07 +0000 (14:14 -0400)] 
[3.7] Fix typos in docs, comments and test assert messages (GH-14872). (#14901)

(cherry picked from commit 96e12d5f4f3c5a20986566038ee763dff3c228a1)

Co-authored-by: Min ho Kim <minho42@gmail.com>
6 years agoUpdate logging cookbook to show multiple worker processes using the concurrent.future...
Miss Islington (bot) [Mon, 22 Jul 2019 12:25:22 +0000 (05:25 -0700)] 
Update logging cookbook to show multiple worker processes using the concurrent.futures module. (GH-14905) (GH-14907)

(cherry picked from commit d309352c6fd93a51f2b3011ca8c2125d3a5d394b)

6 years agobpo-21478: Record calls to parent when autospecced objects are used as child with...
Miss Islington (bot) [Mon, 22 Jul 2019 08:04:07 +0000 (01:04 -0700)] 
bpo-21478: Record calls to parent when autospecced objects are used as child with attach_mock (GH 14688) (GH-14903)

* Clear name and parent of mock in autospecced objects used with attach_mock

* Add NEWS entry

* Fix reversed order of comparison

* Test child and standalone function calls

* Use a helper function extracting mock to avoid code duplication and refactor tests.
(cherry picked from commit 7397cda99795a4a8d96193d710105e77a07b7411)

Co-authored-by: Xtreak <tir.karthi@gmail.com>
6 years agobpo-37627: Add acknowledgment (GH-14883)
Miss Islington (bot) [Sun, 21 Jul 2019 20:38:01 +0000 (13:38 -0700)] 
bpo-37627: Add acknowledgment (GH-14883)

(cherry picked from commit 4214f1ec3b3c73badd639229eff81eb5e57b82ec)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agoFix typo found by Min ho Kim (GH-14879)
Miss Islington (bot) [Sun, 21 Jul 2019 19:54:34 +0000 (12:54 -0700)] 
Fix typo found by Min ho Kim (GH-14879)

(cherry picked from commit 8e3a7380ecb310b50e48f47d1f26190cc9c45eb6)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agobpo-37627: Initialize IDLE Custom Run dialog with previous entries (GH-14870)
Miss Islington (bot) [Sun, 21 Jul 2019 16:09:17 +0000 (09:09 -0700)] 
bpo-37627: Initialize IDLE Custom Run dialog with previous entries (GH-14870)

Repeat the command line arguments most recently entered before so the user can edit them.
(cherry picked from commit 35b87e6001bd991f625abe305951c77ddeb9a9c5)

Co-authored-by: Ngalim Siregar <ngalim.siregar@gmail.com>
6 years agoAdjust builtins.zip() docstring to better communicate its signature (GH-14833)
Miss Islington (bot) [Fri, 19 Jul 2019 18:27:13 +0000 (11:27 -0700)] 
Adjust builtins.zip() docstring to better communicate its signature (GH-14833)

(cherry picked from commit af2f5b1723b95e45e1f15b5bd52102b7de560f7c)

Co-authored-by: Sergey Fedoseev <fedoseev.sergey@gmail.com>
6 years agobpo-37610: improve Using Python doc wrt Editors & IDE (GH-14850) 14861/head
Miss Islington (bot) [Fri, 19 Jul 2019 01:28:49 +0000 (18:28 -0700)] 
bpo-37610: improve Using Python doc wrt Editors & IDE (GH-14850)

Move the Editors and IDE section out of the Unix section, to its own section.

https://bugs.python.org/issue37610
(cherry picked from commit 8f040b7a9f442e7c2605ef1cad9c6b5eb7dd7af7)

Co-authored-by: aldwinaldwin <aldwinaldwin@users.noreply.github.com>
6 years agobpo-33610: IDLE's code-context always shows current context immediately (GH-14821)
Miss Islington (bot) [Thu, 18 Jul 2019 20:46:34 +0000 (13:46 -0700)] 
bpo-33610: IDLE's code-context always shows current context immediately (GH-14821)

Eliminate delay of up to 100ms and accompanying visual artifact.
Fix bug of never showing context when hide and show.
(cherry picked from commit e0a1f8fb5c60886dbddf1a3ccb5d47576bdd43e2)

Co-authored-by: Tal Einat <taleinat@gmail.com>
6 years agobpo-36390: Gather IDLE Format menu functions into format.py (GH-14827) (GH-14830)
Miss Islington (bot) [Thu, 18 Jul 2019 01:22:25 +0000 (18:22 -0700)] 
bpo-36390: Gather IDLE Format menu functions into format.py (GH-14827) (GH-14830)

Add two indent spec methods from editor and Rstrip to existing file.
Tests are not added for indent methods because they need change
in lights of 3.x's prohibition on mixing tabs and spaces.
(cherry picked from commit 1b3892243433da7eae7f5f3a4f98f13d309c8926)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agoFix IndexError when parsing unexpectedly ending quoted-string. (GH-14813)
Miss Islington (bot) [Wed, 17 Jul 2019 17:32:31 +0000 (10:32 -0700)] 
Fix IndexError when parsing unexpectedly ending quoted-string. (GH-14813)

This exception was caused because the input ended unexpectedly with only one
single quote instead of a pair with some value inside it.
(cherry picked from commit 719a062bcb7b08a56e6576dcd75f4244e6053209)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
6 years agobpo-37461: Fix infinite loop in parsing of specially crafted email headers (GH-14794)
Miss Islington (bot) [Wed, 17 Jul 2019 17:02:05 +0000 (10:02 -0700)] 
bpo-37461: Fix infinite loop in parsing of specially crafted email headers (GH-14794)

* bpo-37461: Fix infinite loop in parsing of specially crafted email headers.

Some crafted email header would cause the get_parameter method to run in an
infinite loop causing a DoS attack surface when parsing those headers. This
patch fixes that by making sure the DQUOTE character is handled to prevent
going into an infinite loop.
(cherry picked from commit a4a994bd3e619cbaff97610a1cee8ffa87c672f5)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
6 years agobpo-36390: IDLE: Combine region formatting methods. (GH-12481) (GH-14812)
Miss Islington (bot) [Wed, 17 Jul 2019 14:46:14 +0000 (07:46 -0700)] 
bpo-36390: IDLE: Combine region formatting methods. (GH-12481) (GH-14812)

Rename paragraph.py to format.py and add region formatting methods
from editor.py.  Add tests for the latter.
(cherry picked from commit 82494aa6d947c4a320c09c58fe0f100cdcf7af0b)

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
6 years agobpo-37530: simplify, optimize and clean up IDLE code context (GH-14675)
Miss Islington (bot) [Wed, 17 Jul 2019 08:44:18 +0000 (01:44 -0700)] 
bpo-37530: simplify, optimize and clean up IDLE code context (GH-14675)

* Only create CodeContext instances for "real" editors windows, but
  not e.g. shell or output windows.
* Remove configuration update Tk event fired every second, by having
  the editor window ask its code context widget to update when
  necessary, i.e. upon font or highlighting updates.
* When code context isn't being shown, avoid having a Tk event fired
  every 100ms to check whether the code context needs to be updated.
* Use the editor window's getlineno() method where applicable.
* Update font of the code context widget before the main text widget
(cherry picked from commit 7036e1de3a87d36c7ef41b8a2b44ed6fc4d34be2)

Co-authored-by: Tal Einat <taleinat@gmail.com>
6 years agoDocs: Correct formatting of a multiline code block (GH-13806)
Miss Islington (bot) [Wed, 17 Jul 2019 08:32:58 +0000 (01:32 -0700)] 
Docs: Correct formatting of a multiline code block (GH-13806)

(cherry picked from commit bd26a4466b507e196fc9a5e4a6cb7cd6d39f85aa)

Co-authored-by: Joseph Fox-Rabinovitz <madphysicist@users.noreply.github.com>
6 years agobpo-27452: IDLE: Cleanup config.py code (GH-14577) (GH-14803)
Miss Islington (bot) [Tue, 16 Jul 2019 21:31:47 +0000 (14:31 -0700)] 
bpo-27452: IDLE: Cleanup config.py code (GH-14577) (GH-14803)

(cherry picked from commit f8d4cc7dbbf54b9c5435c3080582a4aa421a067d)

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
6 years agoFix infinite loop in email folding logic (GH-12732)
Miss Islington (bot) [Tue, 16 Jul 2019 18:15:40 +0000 (11:15 -0700)] 
Fix infinite loop in email folding logic (GH-12732)

As far as I can tell, this infinite loop would be triggered if:

1. The value being folded contains a single word (no spaces) longer than
   max_line_length
2. The max_line_length is shorter than the encoding's name + 9
   characters.

bpo-36564: https://bugs.python.org/issue36564
(cherry picked from commit f69d5c61981ea97d251db515c7ff280fcc17182d)

Co-authored-by: Paul Ganssle <pganssle@users.noreply.github.com>
6 years agobpo-37284: Add note to sys.implementation doc (GH-14328) 14790/head
Miss Islington (bot) [Mon, 15 Jul 2019 14:44:26 +0000 (07:44 -0700)] 
bpo-37284: Add note to sys.implementation doc (GH-14328)

Add a brief note to indicate that any new required attributes must go through the PEP process.

https://bugs.python.org/issue37284
(cherry picked from commit 52693c10e82622d883433b779a45d0bd792f17ed)

Co-authored-by: Giovanni Cappellotto <gcappellotto@fb.com>
6 years ago[3.7] bpo-37579: Improve equality behavior for pure Python datetime and time (GH...
Xtreak [Sun, 14 Jul 2019 10:13:59 +0000 (15:43 +0530)] 
[3.7] bpo-37579: Improve equality behavior for pure Python datetime and time (GH-14726) (GH-14745)

Returns NotImplemented for timedelta and time in __eq__ for different types in Python implementation, which matches the C implementation.

This also adds tests to enforce that these objects will fall back to the right hand side's __eq__ and/or __ne__ implementation.

[bpo-37579](https://bugs.python.org/issue37579)
(cherry picked from commit e6b46aafad3427463d6264a68824df4797e682f1)

Co-authored-by: Xtreak <tir.karthi@gmail.com>
https://bugs.python.org/issue37579

6 years agoClarify that plistlib's load and dump functions take a binary file object (GH-9825)
Miss Islington (bot) [Sun, 14 Jul 2019 09:23:38 +0000 (02:23 -0700)] 
Clarify that plistlib's load and dump functions take a binary file object (GH-9825)

The documentation says that the fp parameter to plistlib.load "should be a
readable and binary file object" but the docstring only mentions that it
should be readable. Similarly, plistlib.dump's docstring only mentions
"writable". This commit clarifies that fp should also be binary.

https://docs.python.org/3/library/plistlib.htmlGH-plistlib.load
https://docs.python.org/3/library/plistlib.htmlGH-plistlib.dump
(cherry picked from commit 0d4f4352efecf1b044c88e234e71774fe04b7d6c)

Co-authored-by: Collin Styles <collingstyles@gmail.com>
6 years agobpo-37571: Remove extra space in ctypes docs (GH14764)
Miss Islington (bot) [Sun, 14 Jul 2019 08:24:35 +0000 (01:24 -0700)] 
bpo-37571: Remove extra space in ctypes docs (GH14764)

(cherry picked from commit 68c74d05c1fdaf59d8711431884af975ac2ac5f8)

Co-authored-by: Steve Dower <steve.dower@python.org>
6 years agobpo-37571: Add 'b' to prevent the TypeError exception. (GH-14721)
Miss Islington (bot) [Sun, 14 Jul 2019 08:08:48 +0000 (01:08 -0700)] 
bpo-37571: Add 'b' to prevent the TypeError exception. (GH-14721)

Co-Authored-By: Kyle Stanley <aeros167@gmail.com>
(cherry picked from commit 6b929580eb018cfef386db7f7f66b3a58532eada)

Co-authored-by: Michele Angrisano <michele.angrisano@gmail.com>
6 years agobpo-36261: Improve example of the preamble field in email docs (GH-14751)
Miss Islington (bot) [Sun, 14 Jul 2019 07:51:49 +0000 (00:51 -0700)] 
bpo-36261: Improve example of the preamble field in email docs (GH-14751)

(cherry picked from commit 8efade91b12a13102a09a3856179021e579da5e9)

Co-authored-by: Carl Bordum Hansen <carl@bordum.dk>
6 years agobpo-30088: Document that existing dir structure isn't verified by mailbox.Maildir...
Miss Islington (bot) [Sat, 13 Jul 2019 14:59:32 +0000 (07:59 -0700)] 
bpo-30088: Document that existing dir structure isn't verified by mailbox.Maildir (GH-1163)

Hi,

I've faced an issue w/ `mailbox.Maildir()`. The case is following:
1. I create a folder with `tempfile.TemporaryDirectory()`, so it's empty
2. I pass that folder path as an argument when instantiating `mailbox.Maildir()`
3. Then I receive an exception happening because "there's no such file or directory" (namely `cur`, `tmp` or `new`) during interaction with Maildir

**Expected result:** subdirs are created during `Maildir()` instance creation.

**Actual result:** subdirs are assumed as existing which leads to exceptions during use.

**Workaround:** remove the actual dir before passing the path to `Maildir()`. It will be created automatically with all subdirs needed.

**Fix:** This PR. Basically it adds creation of subdirs regardless of whether the base dir existed before.

https://bugs.python.org/issue30088
(cherry picked from commit e44184749c2fd0921867ea5cd20b8e226c2146c2)

Co-authored-by: Sviatoslav Sydorenko <wk@sydorenko.org.ua>
6 years agobpo-37580: Fix typo in http.cookiejar documentation (GH-14731)
Miss Islington (bot) [Sat, 13 Jul 2019 10:23:10 +0000 (03:23 -0700)] 
bpo-37580: Fix typo in http.cookiejar documentation (GH-14731)

[bpo-37580](https://bugs.python.org/issue37580): Markup typo in http.cookiejar doc

https://bugs.python.org/issue37580
(cherry picked from commit b5bbb8a740eaf46c78d122185de8b072e9deea2a)

Co-authored-by: Milan Oberkirch <milan.oberkirch@geops.de>
6 years agoFix typo in re.escape documentation (GH-14722)
Miss Islington (bot) [Sat, 13 Jul 2019 08:40:54 +0000 (01:40 -0700)] 
Fix typo in re.escape documentation (GH-14722)

(cherry picked from commit fb6c1f8d3b116c7e3e3f814bf750d984a2f2ecbf)

Co-authored-by: Robert DiPietro <rdipietro@gmail.com>
6 years agocloses bpo-37554: Remove `q:q` in os.rst documentation (GH-14692) 14718/head
Miss Islington (bot) [Thu, 11 Jul 2019 17:48:00 +0000 (10:48 -0700)] 
closes bpo-37554: Remove `q:q` in os.rst documentation (GH-14692)

https://bugs.python.org/issue37554
(cherry picked from commit 7cbef72902f32866a416ca6c4e732af4541951b8)

Co-authored-by: Mariatta <Mariatta@users.noreply.github.com>
6 years agobpo-36390: simplify classifyws(), rename it and add unit tests (GH-14500)
Miss Islington (bot) [Thu, 11 Jul 2019 14:57:45 +0000 (07:57 -0700)] 
bpo-36390: simplify classifyws(), rename it and add unit tests (GH-14500)

(cherry picked from commit 9b5ce62cac27fec9dea473865d79c2c654312957)

Co-authored-by: Tal Einat <taleinat@gmail.com>
6 years agobpo-34369: make kqueue.control() docs better reflect that timeout is positional-only...
Miss Islington (bot) [Thu, 11 Jul 2019 14:16:45 +0000 (07:16 -0700)] 
bpo-34369: make kqueue.control() docs better reflect that timeout is positional-only (GH-9499)

(cherry picked from commit 79042ac4348ccc09344014f20dd49401579f8795)

Co-authored-by: Tal Einat <taleinat@gmail.com>
6 years agoDocument default parameter of .seek() in the signature. (GH-14691)
Miss Islington (bot) [Thu, 11 Jul 2019 02:49:37 +0000 (19:49 -0700)] 
Document default parameter of .seek() in the signature. (GH-14691)

(cherry picked from commit 2a3d4d9c53dd4831c3ecf56bc7c4a289c33030d6)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agobpo-26806: IDLE should run without docstrings (GH-14657) (GH-14678)
Miss Islington (bot) [Tue, 9 Jul 2019 19:16:44 +0000 (12:16 -0700)] 
bpo-26806: IDLE should run without docstrings (GH-14657) (GH-14678)

After fcf1d00, IDLE startup failed with python compiled without docstrings.
(cherry picked from commit 6aeb2fe606408aae14c246470794f1303b3be812)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agoPost release updates
Ned Deily [Mon, 8 Jul 2019 21:53:42 +0000 (17:53 -0400)] 
Post release updates

6 years agoMerge release engineering branch
Ned Deily [Mon, 8 Jul 2019 21:51:58 +0000 (17:51 -0400)] 
Merge release engineering branch

6 years agoDoc: Fix example title. (GH-14639)
Miss Islington (bot) [Mon, 8 Jul 2019 21:18:15 +0000 (14:18 -0700)] 
Doc: Fix example title. (GH-14639)

(cherry picked from commit 66b4150f6f001640521ae6c9571cd4325cd67394)

Co-authored-by: Julien Palard <julien@palard.fr>
6 years agoDoc: Fix: Proper UpperCamelCase and lowercase. (GH-14644)
Miss Islington (bot) [Mon, 8 Jul 2019 21:13:59 +0000 (14:13 -0700)] 
Doc: Fix: Proper UpperCamelCase and lowercase. (GH-14644)

Initial report by Michael Blankenship on docs@
(cherry picked from commit 2da622ff77a763327895656779370b80a833d95c)

Co-authored-by: Julien Palard <julien@palard.fr>
6 years ago3.7.4 final v3.7.4
Ned Deily [Mon, 8 Jul 2019 18:03:50 +0000 (14:03 -0400)] 
3.7.4 final

6 years agobpo-37149: Replace dead link for online Tkinter reference (GH-14616)
Miss Islington (bot) [Sat, 6 Jul 2019 06:37:38 +0000 (23:37 -0700)] 
bpo-37149: Replace dead link for online Tkinter reference  (GH-14616)

Also fix a name misspelling.
(cherry picked from commit 45bc61b97178b27ae05bd3eb95481bf0325795bb)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years ago[3.7] bpo-37500: update Misc/NEWS entries to mention revert
Ned Deily [Mon, 8 Jul 2019 16:30:24 +0000 (12:30 -0400)] 
[3.7] bpo-37500: update Misc/NEWS entries to mention revert

6 years ago[3.7] bpo-37500: Revert commit 85ed1712e428f93408f56fc684816f9a85b0ebc0 (GH-14605)
Pablo Galindo [Fri, 5 Jul 2019 19:13:38 +0000 (20:13 +0100)] 
[3.7] bpo-37500: Revert commit 85ed1712e428f93408f56fc684816f9a85b0ebc0 (GH-14605)

https://bugs.python.org/issue37500

6 years agobpo-37513: Change ValueError to TypeError in an example in ctypes doc (GH-14615)
Miss Islington (bot) [Sun, 7 Jul 2019 15:45:59 +0000 (08:45 -0700)] 
bpo-37513: Change ValueError to TypeError in an example in ctypes doc (GH-14615)

(cherry picked from commit f6cdd3ff687ebbf8209d793a18a042ea495c4aeb)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
6 years agobpo-37478: Add missing 'and'. (GH-14631)
Miss Islington (bot) [Sun, 7 Jul 2019 02:49:39 +0000 (19:49 -0700)] 
bpo-37478: Add missing 'and'. (GH-14631)

(cherry picked from commit a9b40e4546ca631e5ab41376b5b72e8f296f557d)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agobpo-37478: Specify possible exceptions for os.chdir() (GH-14611) (GH-14630)
Miss Islington (bot) [Sun, 7 Jul 2019 02:19:08 +0000 (19:19 -0700)] 
bpo-37478: Specify possible exceptions for os.chdir() (GH-14611) (GH-14630)

(cherry picked from commit 0717b4d9b3899c5c2ca13031e4ff619a15a4d368)

Co-authored-by: Kyle Stanley <aeros167@gmail.com>
6 years agobpo-37487: Fix PyList_GetItem index description. (GH-14623) (GH-14625)
Miss Islington (bot) [Sat, 6 Jul 2019 21:55:19 +0000 (14:55 -0700)] 
bpo-37487: Fix PyList_GetItem index description. (GH-14623) (GH-14625)

0 is a legal index.
(cherry picked from commit f8709e804d16ec5d44b1d2f00d59a0f78df7b792)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agobpo-26806: add 30 to the recursion limit in IDLE's shell (GH-13944)
Miss Islington (bot) [Sat, 6 Jul 2019 12:56:10 +0000 (05:56 -0700)] 
bpo-26806: add 30 to the recursion limit in IDLE's shell (GH-13944)

This is done to compensate for the extra stack frames added by
IDLE itself, which cause problems when setting the recursion limit
to low values.

This wraps sys.setrecursionlimit() and sys.getrecursionlimit()
as invisibly as possible.
(cherry picked from commit fcf1d003bf4f0100c9d0921ff3d70e1127ca1b71)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>
6 years agobpo-37149: Replace dead link for online Tkinter reference (GH-14616)
Miss Islington (bot) [Sat, 6 Jul 2019 06:37:38 +0000 (23:37 -0700)] 
bpo-37149: Replace dead link for online Tkinter reference  (GH-14616)

Also fix a name misspelling.
(cherry picked from commit 45bc61b97178b27ae05bd3eb95481bf0325795bb)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
6 years agocloses bpo-37508: Fix name of type in memory.rst. (GH-14604)
Miss Islington (bot) [Sat, 6 Jul 2019 04:08:40 +0000 (21:08 -0700)] 
closes bpo-37508: Fix name of type in memory.rst. (GH-14604)

(cherry picked from commit 39a5d17a7f1387582eb484422df450bc09a5543e)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
6 years ago[3.7] bpo-37500: Revert commit 85ed1712e428f93408f56fc684816f9a85b0ebc0 (GH-14605)
Pablo Galindo [Fri, 5 Jul 2019 19:13:38 +0000 (20:13 +0100)] 
[3.7] bpo-37500: Revert commit 85ed1712e428f93408f56fc684816f9a85b0ebc0 (GH-14605)

https://bugs.python.org/issue37500

6 years agoUse OSError subclasses in os documentation (GH-14262)
Miss Islington (bot) [Fri, 5 Jul 2019 08:47:42 +0000 (01:47 -0700)] 
Use OSError subclasses in os documentation (GH-14262)

(cherry picked from commit a55f75a6e3e9cda5c7c30bd961386b1a8a2e9892)

Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
6 years agobpo-37421: Fix multiprocessing get_temp_dir() finalizer (GH-14572)
Miss Islington (bot) [Thu, 4 Jul 2019 10:45:58 +0000 (03:45 -0700)] 
bpo-37421: Fix multiprocessing get_temp_dir() finalizer (GH-14572)

Fix multiprocessing.util.get_temp_dir() finalizer: clear also the
'tempdir' configuration of the current process, so next call to
get_temp_dir() will create a new temporary directory, rather than
reusing the removed temporary directory.
(cherry picked from commit 9d40554e0da09a44a8547f3f3a2b9dedfeaf7928)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
6 years agobpo-37459: importlib docs improperly reference get_resource_loader() (GH-14568) ...
Miss Islington (bot) [Thu, 4 Jul 2019 01:27:59 +0000 (18:27 -0700)] 
bpo-37459: importlib docs improperly reference get_resource_loader() (GH-14568) (GH-14581)

* bpo-37459: importlib docs improperly reference get_resource_loader()
(cherry picked from commit b607d992e76e485f20be3bfd6b311525123f936b)

Co-authored-by: aldwinaldwin <aldwinaldwin@users.noreply.github.com>
6 years agobpo-37441: Fix wrong PyErr_SetImportErrorSubclass signature in doc (GH-14453)
Miss Islington (bot) [Wed, 3 Jul 2019 02:02:57 +0000 (19:02 -0700)] 
bpo-37441: Fix wrong PyErr_SetImportErrorSubclass signature in doc (GH-14453)

(cherry picked from commit aeecf380660ea459d85bb5f59d76bb54f757b5be)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
6 years agoPost release updates
Ned Deily [Tue, 2 Jul 2019 22:31:28 +0000 (18:31 -0400)] 
Post release updates

6 years agoMerge tag 'v3.7.4rc2' into 3.7
Ned Deily [Tue, 2 Jul 2019 22:23:54 +0000 (18:23 -0400)] 
Merge tag 'v3.7.4rc2' into 3.7

6 years agobpo-37463: match_hostname requires quad-dotted IPv4 (GH-14499)
Miss Islington (bot) [Tue, 2 Jul 2019 21:22:53 +0000 (14:22 -0700)] 
bpo-37463: match_hostname requires quad-dotted IPv4 (GH-14499)

ssl.match_hostname() no longer accepts IPv4 addresses with additional text
after the address and only quad-dotted notation without trailing
whitespaces. Some inet_aton() implementations ignore whitespace and all data
after whitespace, e.g. '127.0.0.1 whatever'.

Short notations like '127.1' for '127.0.0.1' were already filtered out.

The bug was initially found by Dominik Czarnota and reported by Paul Kehrer.

Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37463
(cherry picked from commit 477b1b25768945621d466a8b3f0739297a842439)

Co-authored-by: Christian Heimes <christian@python.org>
6 years ago3.7.4rc2 v3.7.4rc2
Ned Deily [Tue, 2 Jul 2019 18:51:09 +0000 (14:51 -0400)] 
3.7.4rc2

6 years agobpo-37463: match_hostname requires quad-dotted IPv4 (GH-14499)
Christian Heimes [Tue, 2 Jul 2019 18:39:42 +0000 (20:39 +0200)] 
bpo-37463: match_hostname requires quad-dotted IPv4 (GH-14499)

ssl.match_hostname() no longer accepts IPv4 addresses with additional text
after the address and only quad-dotted notation without trailing
whitespaces. Some inet_aton() implementations ignore whitespace and all data
after whitespace, e.g. '127.0.0.1 whatever'.

Short notations like '127.1' for '127.0.0.1' were already filtered out.

The bug was initially found by Dominik Czarnota and reported by Paul Kehrer.

Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37463

6 years agoRevert "Remove unused imports in tests (GH-14518) (GH-14522)" (GH-14555)
Victor Stinner [Tue, 2 Jul 2019 12:42:39 +0000 (14:42 +0200)] 
Revert "Remove unused imports in tests (GH-14518) (GH-14522)" (GH-14555)

This reverts commit e34b5f4d6483187969d5149c801d056b72ef2ddb.

6 years agobpo-37335: Fix test_c_locale_coercion to handle any ASCII alias (GH-14449)
Jakub KulĆ­k [Tue, 2 Jul 2019 10:46:01 +0000 (12:46 +0200)] 
bpo-37335: Fix test_c_locale_coercion to handle any ASCII alias (GH-14449)

Fix unexpected ASCII aliases in locale coercion tests: normalize encoding
names with codecs.lookup(encoding).name.

6 years agobpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)
Miss Islington (bot) [Tue, 2 Jul 2019 07:38:36 +0000 (00:38 -0700)] 
bpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)

Under some conditions the earlier fix for bpo-18075, "Infinite recursion
tests triggering a segfault on Mac OS X", now causes failures on macOS
when attempting to change stack limit with resource.setrlimit
resource.RLIMIT_STACK, like regrtest does when running the test suite.
The reverted change had specified a non-default stack size when linking
the python executable on macOS.  As of macOS 10.14.4, the previous
code causes a hard failure when running tests, although similar
failures had been seen under some conditions under some earlier
systems.  Reverting the change to the interpreter stack size at link
time helped for release builds but caused some tests to fail when
built --with-pydebug.  Try the opposite approach: continue to build
the interpreter with an increased stack size on macOS and remove
the failing setrlimit call in regrtest initialization.  This will
definitely avoid the resource.RLIMIT_STACK error and should have
no, or fewer, side effects.
(cherry picked from commit 5bbbc733e6cc0804f19b071944af8d4719e26ae6)

Co-authored-by: Ned Deily <nad@python.org>
6 years agobpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)
Miss Islington (bot) [Tue, 2 Jul 2019 07:38:36 +0000 (00:38 -0700)] 
bpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)

Under some conditions the earlier fix for bpo-18075, "Infinite recursion
tests triggering a segfault on Mac OS X", now causes failures on macOS
when attempting to change stack limit with resource.setrlimit
resource.RLIMIT_STACK, like regrtest does when running the test suite.
The reverted change had specified a non-default stack size when linking
the python executable on macOS.  As of macOS 10.14.4, the previous
code causes a hard failure when running tests, although similar
failures had been seen under some conditions under some earlier
systems.  Reverting the change to the interpreter stack size at link
time helped for release builds but caused some tests to fail when
built --with-pydebug.  Try the opposite approach: continue to build
the interpreter with an increased stack size on macOS and remove
the failing setrlimit call in regrtest initialization.  This will
definitely avoid the resource.RLIMIT_STACK error and should have
no, or fewer, side effects.
(cherry picked from commit 5bbbc733e6cc0804f19b071944af8d4719e26ae6)

Co-authored-by: Ned Deily <nad@python.org>
6 years agoPut pyexpatns.h include back. bpo-37437 (GH-14539)
Miss Islington (bot) [Tue, 2 Jul 2019 05:29:05 +0000 (22:29 -0700)] 
Put pyexpatns.h include back. bpo-37437 (GH-14539)

(cherry picked from commit 2cd07920bb7d2d319999394092190f37935dc421)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agoPut pyexpatns.h include back. bpo-37437 (GH-14539)
Miss Islington (bot) [Tue, 2 Jul 2019 05:29:05 +0000 (22:29 -0700)] 
Put pyexpatns.h include back. bpo-37437 (GH-14539)

(cherry picked from commit 2cd07920bb7d2d319999394092190f37935dc421)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agoMinor updates to macOS installer screens for 3.7.4
Ned Deily [Tue, 2 Jul 2019 03:49:36 +0000 (23:49 -0400)] 
Minor updates to macOS installer screens for 3.7.4

6 years ago[3.7] bpo-37440: Enable TLS 1.3 post-handshake auth in http.client (GH-14448) (GH...
Miss Islington (bot) [Mon, 1 Jul 2019 07:07:52 +0000 (00:07 -0700)] 
[3.7] bpo-37440: Enable TLS 1.3 post-handshake auth in http.client (GH-14448) (GH-14496)

Post-handshake authentication is required for conditional client cert authentication with TLS 1.3.

https://bugs.python.org/issue37440
(cherry picked from commit d1bd6e79da1ee56dc1b902d804216ffd267399db)

Co-authored-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37440

6 years ago[3.7] bpo-37428: Don't set PHA verify flag on client side (GH-14421) (GH-14493)
Miss Islington (bot) [Mon, 1 Jul 2019 06:51:40 +0000 (23:51 -0700)] 
[3.7] bpo-37428: Don't set PHA verify flag on client side (GH-14421) (GH-14493)

SSLContext.post_handshake_auth = True no longer sets
SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
option is documented as ignored for clients, OpenSSL implicitly enables cert
chain validation when the flag is set.

Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428
(cherry picked from commit f0f5930ac88482ef896283db5be9b8d508d077db)

Co-authored-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428

6 years agobpo-37437: Pass -Wno-unreachable-code when compiling expat. (GH-14470)
Miss Islington (bot) [Sat, 29 Jun 2019 23:16:44 +0000 (16:16 -0700)] 
bpo-37437: Pass -Wno-unreachable-code when compiling expat. (GH-14470)

(cherry picked from commit 95da310078a9364bae9ab3f2ad9c71e34306a70c)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agobpo-37369: Fix path handling when python.exe is used as a symlink (GH-14461)
Steve Dower [Sat, 29 Jun 2019 04:30:44 +0000 (21:30 -0700)] 
bpo-37369: Fix path handling when python.exe is used as a symlink (GH-14461)

6 years agobpo-37369: Fix venv and test symlinking (GH-14456)
Steve Dower [Fri, 28 Jun 2019 18:41:55 +0000 (11:41 -0700)] 
bpo-37369: Fix venv and test symlinking (GH-14456)

6 years agobpo-37369: Fixes path for sys.executable when running from the Microsoft Store (GH...
Steve Dower [Fri, 28 Jun 2019 17:02:13 +0000 (10:02 -0700)] 
bpo-37369: Fixes path for sys.executable when running from the Microsoft Store (GH-14450)

6 years agocloses bpo-37437: Update vendorized expat to 2.2.7. (GH-14436)
Miss Islington (bot) [Fri, 28 Jun 2019 04:15:09 +0000 (21:15 -0700)] 
closes bpo-37437: Update vendorized expat to 2.2.7. (GH-14436)

(cherry picked from commit 3b03b09fc94425915c5b1225e9200a3a95bc827b)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agoImprove Windows commands in tutorial (GH-14401)
Steve Dower [Wed, 26 Jun 2019 17:00:58 +0000 (10:00 -0700)] 
Improve Windows commands in tutorial (GH-14401)

6 years ago[3.7] bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304) (GH...
Miss Islington (bot) [Tue, 25 Jun 2019 10:29:18 +0000 (03:29 -0700)] 
[3.7] bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304) (GH-14369)

* bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304)

* The UTF-8 incremental decoders fails now fast if encounter
  a sequence that can't be handled by the error handler.
* The UTF-16 incremental decoders with the surrogatepass error
  handler decodes now a lone low surrogate with final=False.
(cherry picked from commit 894263ba80af4b7733c2df95b527e96953922656)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
6 years agobpo-35360: Update Windows builds to use SQLite 3.28.0 (GH-14179)
Miss Islington (bot) [Mon, 24 Jun 2019 23:44:07 +0000 (16:44 -0700)] 
bpo-35360: Update Windows builds to use SQLite 3.28.0 (GH-14179)

(cherry picked from commit 7fd2ba354ec2304743ffd9ba620e07d113532264)

Co-authored-by: animalize <animalize@users.noreply.github.com>
6 years agobpo-32627: Fix compile error when conflicting `_uuid` headers included (GH-11751)
Miss Islington (bot) [Mon, 24 Jun 2019 18:18:22 +0000 (11:18 -0700)] 
bpo-32627: Fix compile error when conflicting `_uuid` headers included (GH-11751)

(cherry picked from commit 6ffd9b05dfade9e3a101fe039157856eb855f82e)

Co-authored-by: ziheng <zihenglv@gmail.com>
6 years agobpo-37156: Fix libssl DLL tag in MSI sources (GH-14219)
Steve Dower [Wed, 19 Jun 2019 01:05:33 +0000 (18:05 -0700)] 
bpo-37156: Fix libssl DLL tag in MSI sources (GH-14219)

6 years agobpo-37470: Document more clearly the error handling for QueueHandler.emit(). (GH...
Miss Islington (bot) [Mon, 1 Jul 2019 19:51:20 +0000 (12:51 -0700)] 
bpo-37470: Document more clearly the error handling for QueueHandler.emit(). (GH-14532) (GH-14534)

(cherry picked from commit 0f4e8132820947d93eccf31b9e526b81c6ffa53d)

6 years agobpo-37469: Document usability of SimpleQueue with QueueHandler and QueueListener...
Miss Islington (bot) [Mon, 1 Jul 2019 18:52:57 +0000 (11:52 -0700)] 
bpo-37469: Document usability of SimpleQueue with QueueHandler and QueueListener. (GH-14521) (GH-14526)

(cherry picked from commit e6b64b756f940147728ea7808fb686ffcae89176)

6 years agoRemove unused imports in tests (GH-14518) (GH-14522)
Victor Stinner [Mon, 1 Jul 2019 18:02:39 +0000 (20:02 +0200)] 
Remove unused imports in tests (GH-14518) (GH-14522)

(cherry picked from commit 8f4ef3b019ce380022018587571b0f970e668de3)

6 years agobpo-37467: Fix PyErr_Display() for bytes filename (GH-14504) (GH-14515)
Victor Stinner [Mon, 1 Jul 2019 15:41:38 +0000 (17:41 +0200)] 
bpo-37467: Fix PyErr_Display() for bytes filename (GH-14504) (GH-14515)

Fix sys.excepthook() and PyErr_Display() if a filename is a bytes
string. For example, for a SyntaxError exception where the filename
attribute is a bytes string.

Cleanup also test_sys:

* Sort imports.
* Rename numruns global var to INTERN_NUMRUNS.
* Add DisplayHookTest and ExceptHookTest test case classes.
* Don't save/restore sys.stdout and sys.displayhook using
  setUp()/tearDown(): do it in each test method.
* Test error case (call hook with no argument) after the success case.

(cherry picked from commit f9b7457bd7f438263e0d2dd1f70589ad56a2585e)

6 years agobpo-10945: Drop support for bdist_wininst on non-Windows systems (GH-14506)
Miss Islington (bot) [Mon, 1 Jul 2019 12:42:08 +0000 (05:42 -0700)] 
bpo-10945: Drop support for bdist_wininst on non-Windows systems (GH-14506)

bdist_wininst depends on MBCS codec, unavailable on non-Windows,
and bdist_wininst have not worked since at least Python 3.2, possibly
never on Python 3.

Here we document that bdist_wininst is only supported on Windows,
and we mark it unsupported otherwise to skip tests.

Distributors of Python 3 can now safely drop the bdist_wininst .exe files
without the need to skip bdist_wininst related tests.
(cherry picked from commit 72cd653c4ed7a4f8f8fb06ac364b08a97085a2b5)

Co-authored-by: Miro HronĨok <miro@hroncok.cz>
6 years agobpo-32934: Clarified meaning of 'capacity' for BufferingHandler and MemoryHandler...
Miss Islington (bot) [Mon, 1 Jul 2019 12:11:38 +0000 (05:11 -0700)] 
bpo-32934: Clarified meaning of 'capacity' for BufferingHandler and MemoryHandler. (GH-14498) (GH-14508)

(cherry picked from commit 84de34e39eb9e49b2ae691c6f67df8d7da3561de)

6 years ago[3.7] bpo-37440: Enable TLS 1.3 post-handshake auth in http.client (GH-14448) (GH...
Miss Islington (bot) [Mon, 1 Jul 2019 07:07:52 +0000 (00:07 -0700)] 
[3.7] bpo-37440: Enable TLS 1.3 post-handshake auth in http.client (GH-14448) (GH-14496)

Post-handshake authentication is required for conditional client cert authentication with TLS 1.3.

https://bugs.python.org/issue37440
(cherry picked from commit d1bd6e79da1ee56dc1b902d804216ffd267399db)

Co-authored-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37440

6 years ago[3.7] bpo-37428: Don't set PHA verify flag on client side (GH-14421) (GH-14493)
Miss Islington (bot) [Mon, 1 Jul 2019 06:51:40 +0000 (23:51 -0700)] 
[3.7] bpo-37428: Don't set PHA verify flag on client side (GH-14421) (GH-14493)

SSLContext.post_handshake_auth = True no longer sets
SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
option is documented as ignored for clients, OpenSSL implicitly enables cert
chain validation when the flag is set.

Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428
(cherry picked from commit f0f5930ac88482ef896283db5be9b8d508d077db)

Co-authored-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428

6 years agobpo-30754: Document textwrap.dedent blank line behavior. (GH-14469)
Miss Islington (bot) [Sun, 30 Jun 2019 04:38:11 +0000 (21:38 -0700)] 
bpo-30754: Document textwrap.dedent blank line behavior. (GH-14469)

* Added documentation for textwrap.dedent behavior.
* Remove an obsolete note about pre-2.5 behavior from the docstring.
(cherry picked from commit eb97b9211e7c99841d6cae8c63893b3525d5a401)

Co-authored-by: tmblweed <tmblweed@users.noreply.github.com>
6 years agobpo-37437: Pass -Wno-unreachable-code when compiling expat. (GH-14470)
Miss Islington (bot) [Sat, 29 Jun 2019 23:16:44 +0000 (16:16 -0700)] 
bpo-37437: Pass -Wno-unreachable-code when compiling expat. (GH-14470)

(cherry picked from commit 95da310078a9364bae9ab3f2ad9c71e34306a70c)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agobpo-37369: Fix path handling when python.exe is used as a symlink (GH-14461)
Steve Dower [Sat, 29 Jun 2019 04:30:44 +0000 (21:30 -0700)] 
bpo-37369: Fix path handling when python.exe is used as a symlink (GH-14461)

6 years agobpo-37369: Fix venv and test symlinking (GH-14456)
Steve Dower [Fri, 28 Jun 2019 18:41:55 +0000 (11:41 -0700)] 
bpo-37369: Fix venv and test symlinking (GH-14456)

6 years agobpo-37369: Fixes path for sys.executable when running from the Microsoft Store (GH...
Steve Dower [Fri, 28 Jun 2019 17:02:13 +0000 (10:02 -0700)] 
bpo-37369: Fixes path for sys.executable when running from the Microsoft Store (GH-14450)

6 years agobpo-37432: Doc: Fix signature of PyObject_Del() (GH-14430)
Miss Islington (bot) [Fri, 28 Jun 2019 09:16:30 +0000 (02:16 -0700)] 
bpo-37432: Doc: Fix signature of PyObject_Del() (GH-14430)

(cherry picked from commit b4bee03087a3c70cb040e2ce569c828860ed8e87)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
6 years agocloses bpo-37437: Update vendorized expat to 2.2.7. (GH-14436)
Miss Islington (bot) [Fri, 28 Jun 2019 04:15:09 +0000 (21:15 -0700)] 
closes bpo-37437: Update vendorized expat to 2.2.7. (GH-14436)

(cherry picked from commit 3b03b09fc94425915c5b1225e9200a3a95bc827b)

Co-authored-by: Benjamin Peterson <benjamin@python.org>
6 years agocloses bpo-37420: Handle errors during iteration in os.sched_setaffinity. (GH-14414)
Miss Islington (bot) [Thu, 27 Jun 2019 16:30:41 +0000 (09:30 -0700)] 
closes bpo-37420: Handle errors during iteration in os.sched_setaffinity. (GH-14414)

(cherry picked from commit 45a30af109f69a81576b87ea775863ba12d55316)

Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
6 years agobpo-29412: Fix indexError when parsing a header value ending unexpectedly (GH-14387...
Miss Islington (bot) [Wed, 26 Jun 2019 22:05:04 +0000 (15:05 -0700)] 
bpo-29412: Fix indexError when parsing a header value ending unexpectedly (GH-14387) (GH-14412)

* patched string index out of range error in get_word function of _header_value_parser.py and created tests in test__header_value_parser.py for CFWS.
* Raise HeaderParseError instead of continuing when parsing a word.
(cherry picked from commit 7213df7bbfd85378c6e42e1ac63144d5974bdcf6)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
6 years ago[3.7] bpo-37163: dataclasses.replace() now supports the field named "obj". (GH-13877...
Serhiy Storchaka [Wed, 26 Jun 2019 20:03:08 +0000 (23:03 +0300)] 
[3.7] bpo-37163: dataclasses.replace() now supports the field named "obj". (GH-13877) (GH-14405)

(cherry picked from commit f5b89af)

6 years agobpo-37411: Rewrite test_wsgiref.testEnviron() (GH-14394)
Miss Islington (bot) [Wed, 26 Jun 2019 19:37:57 +0000 (12:37 -0700)] 
bpo-37411: Rewrite test_wsgiref.testEnviron() (GH-14394)

Fix test_wsgiref.testEnviron() to no longer depend on the environment
variables (don't fail if "X" variable is set).

testEnviron() now overrides os.environ to get a deterministic
environment. Test full TestHandler.environ content: not only a few
selected variables.
(cherry picked from commit 5150d327924959639215ed0a78feffc0d88258da)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
6 years agobpo-37417: Fix error handling in bytearray.extend. (GH-14407)
Miss Islington (bot) [Wed, 26 Jun 2019 19:23:19 +0000 (12:23 -0700)] 
bpo-37417: Fix error handling in bytearray.extend. (GH-14407)

(cherry picked from commit 2a7d596f27b2342caf168a03c95ebf3b56e5dbbd)

Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
6 years agoImprove Windows commands in tutorial (GH-14401)
Steve Dower [Wed, 26 Jun 2019 17:00:58 +0000 (10:00 -0700)] 
Improve Windows commands in tutorial (GH-14401)

6 years agobpo-37400: Fix test_os.test_chown() (GH-14374) (GH-14378)
Miss Islington (bot) [Tue, 25 Jun 2019 20:25:01 +0000 (13:25 -0700)] 
bpo-37400: Fix test_os.test_chown() (GH-14374) (GH-14378)

Use os.getgroups() rather than grp.getgrall() to get groups.
Rename also the test to test_chown_gid().
(cherry picked from commit d7c87d982d4ec4ba201bcee14324ae5e0e90581f)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
6 years ago[3.7] bpo-33972: Fix EmailMessage.iter_attachments raising AttributeError. (GH-14119...
Abhilash Raj [Tue, 25 Jun 2019 18:40:41 +0000 (11:40 -0700)] 
[3.7] bpo-33972: Fix EmailMessage.iter_attachments raising AttributeError. (GH-14119) (GH-14381)

When certain malformed messages have content-type set to 'mulitpart/*' but
still have a single part body, iter_attachments can raise AttributeError. This
patch fixes it by returning a None value instead when the body is single part.
(cherry picked from commit 02257012f6d3821d816cb6a7e8461a88a05b9a08)

Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
https://bugs.python.org/issue33972