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Issue to track edits to "What's New in Python 3.6"

New changeset 38c806f0943b by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/38c806f0943b 

What no mention of math.tau? It's a PEP-level change!

The page is a work-in-progress. We'll surely capture all notable changes.

Holy cow, I missed the PEP 628.

I'm actually working on a tool that parses Misc/NEWS, cpython and peps repos, and roundup to gather and organize the changes to make the news editor's job easier.

Elvis Pranskevichus added the comment:
> I'm actually working on a tool that parses Misc/NEWS, cpython and peps repos, and roundup to gather and organize the changes to make the news editor's job easier.
I don't understand why developers don't do it during the cycle :-/ I'm
trying to keep What's Up In Python X.Y? up to date.

Elvis, please take a look at http://bugs.python.org/issue28641 

Attached patch for another pass on what's new.

New changeset bcd4ab982429 by Yury Selivanov in branch '3.6':
Issue #28635: Fix a couple of missing/incorrect versionchanged tags
https://hg.python.org/cpython/rev/bcd4ab982429
New changeset 5c4ce500dd35 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/5c4ce500dd35 

New changeset c0060567f35d by Yury Selivanov in branch '3.6':
Issue #28635: What's New in Python 3.6 updates
https://hg.python.org/cpython/rev/c0060567f35d
New changeset 69bdf8bdfd61 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/69bdf8bdfd61 

Patches for following issues was applied in 3.5. They may be bug fixes, not new features.
#13248 #16113 #20476 #22115 #23517 #24764 #25590 #25593 #25913 #26470 #26733 #26754 #26801 #27040 #27041 #27243 #27392 #27598 #27691 #27766 #27850 #27932 #28370 #28613 

+The disassembler now decodes ``FORMAT_VALUE`` argument.
+(Contributed by Serhiy Storchaka in :issue:`28317`.)
FORMAT_VALUE is new in 3.6. This change should be considered as a part of PEP 498 and is not deserve special mentioning.

Thanks Serhiy. I removed mentions of things that were indeed fixes backported to 3.5. Other issue references are valid news, including new features to provisional modules backported to 3.5. It is customary to include these in the news for the major release.

New changeset 4c81a107ccab by Yury Selivanov in branch '3.6':
Issue #28635: what's new in 3.6: remove mentions of backported fixes.
https://hg.python.org/cpython/rev/4c81a107ccab
New changeset 8ebaa546a033 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/8ebaa546a033 

I spotted a small typo in the "PEP 495: Local Time Disambiguation" section: "The values of the fold attribute have the value 0 all instances ..." should be "The values of the fold attribute have the value 0 *for* all instances ..."

There are now a few markup errors that the Docs buildbots are catching. See, for example:
http://buildbot.python.org/all/builders/Docs%203.x/builds/2849 

I'll go through whatsnew on Monday, fixing errors etc.

Thank you Yury and Elvis for working on this!
I have few more suggestions for What's New:
* collections.abc.Reversible (http://bugs.python.org/issue25987).
* various ABCs in collections.abc now have means for explicit "anti-registration" by setting a corresponding attribute to None (http://bugs.python.org/issue25958, https://docs.python.org/3.6/reference/datamodel.html#special-method-names).
* implementation improvements (such as caching of generic types) in typing module give up to 30x seep-up and reduce memory footprint.
* typing.py now supports generic type aliases (https://github.com/python/typing/pull/195 and https://github.com/python/typing/pull/308, see mypy docs for usage examples).
* typing.py supports PEP 526 syntax for typed NamedTuple (https://github.com/python/typing/pull/282).
(I see that there are already several items about typing, so please feel free to keep only the most important changes.)

Patch with updates attached. Thanks for the feedback guys!

New changeset 993215342a95 by Yury Selivanov in branch '3.6':
Issue #28635: what's new in 3.6: add a few more notes on typing
https://hg.python.org/cpython/rev/993215342a95
New changeset c3b4eea73615 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/c3b4eea73615 

I added ``-VV`` option to python command (issue28532).
Which section should I add the entry about it?

https://docs.python.org/3.6/whatsnew/3.6.html#changes-in-python-command-behavior seems appropriate.

On second thought `-VV` isn't really a porting change, so probably a new section under "Build and C API Changes". Something like "Other Improvements".

Please take a look at issue28810. Most bytecode changes are not documented.

Here's a patch to add opcode changes to the What's New document. Thanks for pointing this out Serhiy.

LGTM. Thanks Elvis!

New changeset 52038705827d by Yury Selivanov in branch '3.6':
Issue #28635: Document Python 3.6 opcode changes
https://hg.python.org/cpython/rev/52038705827d
New changeset 48fb6a4cb5f8 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/48fb6a4cb5f8 

New changeset d12bc674b74e by Yury Selivanov in branch '3.6':
Issue #28635: Drop the note that whatsnew is incomplete
https://hg.python.org/cpython/rev/d12bc674b74e
New changeset 1883072efc5f by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/1883072efc5f 

New changeset 418ba3a0f090 by Yury Selivanov in branch '3.6':
Issue #28635: asyncio-related fixes and additions.
https://hg.python.org/cpython/rev/418ba3a0f090
New changeset 83eb8053a4e1 by Yury Selivanov in branch 'default':
Merge 3.6 (issue #28635)
https://hg.python.org/cpython/rev/83eb8053a4e1 

New changeset cb4ad88fdc91 by Yury Selivanov in branch '3.6':
Issue #28635: Drop the note that whatsnew is incomplete
https://hg.python.org/cpython/rev/cb4ad88fdc91
New changeset c4d6ef15bb7c by Yury Selivanov in branch '3.6':
Issue #28635: asyncio-related fixes and additions.
https://hg.python.org/cpython/rev/c4d6ef15bb7c 

[cherrypicked for 3.6.0r2]

Can this be closed (since 3.6 has been released)? Or is there still more you'd like to do specifically to complete this issue?

I'm pretty sure we're done with What's New for 3.6.0, so, unless it's worth keeping this open for any 3.6.x edits, I'm for closing this.

I don't see any reason to keep this open. Thanks so much, Elvis and Yury, for doing such a great job again!