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Soft comparison of --required-version (#2832)
[etc/vim.git] / src / blib2to3 / README
1 A subset of lib2to3 taken from Python 3.7.0b2.
2 Commit hash: 9c17e3a1987004b8bcfbe423953aad84493a7984
3
4 Reasons for forking:
5 - consistent handling of f-strings for users of Python < 3.6.2
6 - backport of BPO-33064 that fixes parsing files with trailing commas after
7   *args and **kwargs
8 - backport of GH-6143 that restores the ability to reformat legacy usage of
9   `async`
10 - support all types of string literals
11 - better ability to debug (better reprs)
12 - INDENT and DEDENT don't hold whitespace and comment prefixes
13 - ability to Cythonize
14
15 Change Log:
16 - Changes default logger used by Driver
17 - Backported the following upstream parser changes:
18   - "bpo-42381: Allow walrus in set literals and set comprehensions (GH-23332)"
19     https://github.com/python/cpython/commit/cae60187cf7a7b26281d012e1952fafe4e2e97e9
20   - "bpo-42316: Allow unparenthesized walrus operator in indexes (GH-23317)"
21     https://github.com/python/cpython/commit/b0aba1fcdc3da952698d99aec2334faa79a8b68c
22 - Tweaks to help mypyc compile faster code (including inlining type information,
23   "Final-ing", etc.)