delta/cpython-git.git/Include/internal, branch enum-lost-fixes

[3.10] Fix typos in the Include directory (GH-28745) (GH-28789)

2021-10-07T13:00:23+00:00

(cherry picked from commit 8e8f7522171ef82f2f5049940f815e00e38c6f42)

[3.10] Remove trailing spaces (GH-28709)

2021-10-03T17:03:49+00:00

[3.10] [codemod] Fix non-matching bracket pairs (GH-28473) (GH-28511)

2021-09-21T23:33:59+00:00

Co-authored-by: Terry Jan Reedy 
Co-authored-by: Serhiy Storchaka 
Co-authored-by: Łukasz Langa 
(cherry picked from commit 8f943ca25732d548cf9f0b0393ba8d582fb93e29)

Co-authored-by: Mohamad Mansour <66031317+mohamadmansourX@users.noreply.github.com>

[3.10] bpo-45083: Include the exception class qualname when formatting an exception (GH-28119) (GH-28134)

2021-09-08T16:32:19+00:00

Co-authored-by: Erlend Egeberg Aasland 
(cherry picked from commit b4b6342848ec0459182a992151099252434cc619)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>

* Use a private version of _PyType_GetQualName

Co-authored-by: Łukasz Langa

[3.10] bpo-44654: Do not export the union type related symbols (GH-27223). (GH-27225)

2021-07-18T15:37:41+00:00

(cherry picked from commit 8f50f44592190b5a8cb115f0d58d577036e68308)

[3.10] bpo-44654: Refactor and clean up the union type implementation (GH-27196) (GH-27219)

2021-07-17T21:10:21+00:00

(cherry picked from commit 0fd27375cabd12e68a2f12cfeca11a2d5043429e)

[3.10] bpo-44490: Add parameters and getitem to types.Union (GH-26980) (GH-27207)

2021-07-17T19:14:57+00:00

Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Guido van Rossum .
(cherry picked from commit c45fa1a5d9b419cf13ad4b5a7cb453956495b83e)

Co-authored-by: Yurii Karabas <1998uriyyo@gmail.com>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>

bpo-44458: Ensure BUFFER_BLOCK_SIZE symbol is statically allocated. (GH-26808) (GH-26844)

2021-06-22T07:10:23+00:00

* bpo-44458: Ensure BUFFER_BLOCK_SIZE symbol is statically allocated.
(cherry picked from commit 92c2e91580521ba5c85aa3205a0211df5b48689b)

Co-authored-by: Russell Keith-Magee

bpo-44184: Fix subtype_dealloc() for freed type (GH-26274) (GH-26290)

2021-05-21T22:50:11+00:00

Fix a crash at Python exit when a deallocator function removes the
last strong reference to a heap type.

Don't read type memory after calling basedealloc() since
basedealloc() can deallocate the type and free its memory.

_PyMem_IsPtrFreed() argument is now constant.
(cherry picked from commit 615069eb08494d089bf24e43547fbc482ed699b8)

Co-authored-by: Victor Stinner 

Co-authored-by: Victor Stinner

bpo-38530: Refactor and improve AttributeError suggestions (GH-25776)

2021-05-03T15:47:27+00:00

- Make case-swaps half the cost of any other edit
- Refactor Levenshtein code to not use memory allocator, and to bail early on no match.
- Add comments to Levenshtein distance code
- Add test cases for Levenshtein distance behind a debug macro
- Set threshold to `(name_size + item_size + 3) * MOVE_COST / 6`.
  - Reasoning: similar to `difflib.SequenceMatcher.ratio()` >= 2/3:
```
"Multiset Jaccard similarity" >= 2/3
matching letters / total letters >= 2/3
(name_size - distance + item_size - distance) / (name_size + item_size) >= 2/3
1 - (2*distance) / (name_size + item_size) >= 2/3
1/3 >= (2*distance) / (name_size + item_size)
(name_size + item_size) / 6 >= distance
With rounding:
(name_size + item_size + 3) // 6 >= distance
```

Co-authored-by: Pablo Galindo