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* Revert "bpo-30406: Make async and await proper keywords (#1669)" (GH-6143)Jelle Zijlstra2018-03-181-11/+11
| | | | | This reverts commit ac317700ce7439e38a8b420218d9a5035bba92ed. (Reverts only the lib2to3 part.)
* lib2to3: Add more tests (#6101)Łukasz Langa2018-03-131-0/+108
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* bpo-33064: lib2to3: support trailing comma after *args and **kwargs (#6096)Łukasz Langa2018-03-131-3/+33
| | | | | | | New tests also added. I also made the comments in line with the builtin Grammar/Grammar. PEP 306 was withdrawn, Kees Blom's railroad program has been lost to the sands of time for at least 16 years now (I found a python-dev post from people looking for it).
* compare with difflib not diff(1) (GH-5450)Benjamin Peterson2018-01-301-13/+9
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* closes bpo-30117: fix lib2to3 ParserIdempotency test (GH-1242)Eric Appelt2018-01-302-10/+15
| | | | | | | | | | | Fix two (in my opinion) spurious failure conditions in the lib2to3.tests.test_parser.TestParserIdempotency test_parser test. Use the same encoding found in the initial file to write a temp file for a diff. This retains the BOM if the encoding was initially utf-8-sig. If the file cannot be parsed using the normal grammar, try again with no print statement which should succeed for valid files using future print_function For case (1), the driver was correctly handling a BOM in a utf-8 file, but then the test was not writing a comparison file using 'utf-8-sig' to diff against, so the BOM got removed. I don't think that is the fault of the parser, and lib2to3 will retain the BOM. For case (2), lib2to3 pre-detects the use of from __future__ import print_function or allows the user to force this interpretation with a -p flag, and then selects a different grammar with the print statement removed. That makes the test cases unfair to this test as the driver itself doesn't know which grammar to use. As a minimal fix, the test will try using a grammar with the print statement, and if that fails fall back on a grammar without it. A more thorough handling of the idempotency test would to be to parse all files using both grammars and ignore if one of the two failed but otherwise check both. I didn't think this was necessary but can change.
* bpo-24960: use pkgutil.get_data in lib2to3 to read pickled grammar files (#4977)Benjamin Peterson2017-12-221-0/+15
| | | | | | This is more complicated than it should be because we need to preserve the useful mtime-based regeneration feature that lib2to3.pgen2.driver.load_grammar has. We only look for the pickled grammar file with pkgutil.get_data and only if the source file does not exist.
* bpo-32046: Update 2to3 when converts operator.isCallable(obj). (#4417)Dong-hee Na2017-11-281-2/+2
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* bpo-30143: 2to3 now generates a code that uses abstract collection classes ↵Serhiy Storchaka2017-11-161-4/+4
| | | | | | (#1262) from collections.abc rather than collections.
* bpo-30406: Make async and await proper keywords (#1669)Jelle Zijlstra2017-10-061-11/+15
| | | Per PEP 492, 'async' and 'await' should become proper keywords in 3.7.
* closes bpo-27494: Fix 2to3 handling of trailing comma after a generator ↵Jakub Stasiak2017-10-051-0/+7
| | | | expression (#3771)
* bpo-23894: make lib2to3 recognize f-strings (#1733)Łukasz Langa2017-05-221-0/+1
| | | | | | | Note: this doesn't unpack f-strings into the underlying JoinedStr AST. Ideally we'd fully implement JoinedStr here but given its additional complexity, I think this is worth bandaiding as is. This unblocks tools like https://github.com/google/yapf to format 3.6 syntax using f-strings.
* Make rb'' strings work in lib2to3 (#1724)Łukasz Langa2017-05-221-0/+21
| | | This partially solves bpo-23894.
* bpo-29869: Allow underscores in numeric literals in lib2to3. (GH-1119)Nevada Sanchez2017-04-131-0/+22
| | | | | * Allow underscores in numeric literals in lib2to3. * Stricter literal parsing for Python 3.6 in lib2to3.pgen2.tokenize. * Add test case for underscores in literals in Python 3.
* bpo-28837: Fix lib2to3 handling of map/zip/filter calls when followed with a ↵Stuart Berg2017-04-061-9/+47
| | | | 'trailer', e.g. zip()[x] (#24)
* Remove unused imports.Serhiy Storchaka2016-12-161-1/+0
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* Issue #25969: Update the lib2to3 grammar to handle the unpackingGregory P. Smith ext:(%20%5BGoogle%20Inc.%5D)2016-09-102-0/+39
|\ | | | | | | generalizations added in 3.5.
| * Issue #25969: Update the lib2to3 grammar to handle the unpackingGregory P. Smith ext:(%20%5BGoogle%20Inc.%5D)2016-09-102-0/+39
| | | | | | | | generalizations added in 3.5.
| * remove fix_callable - callable() was readded many releases ago.Gregory P. Smith2016-09-101-92/+0
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* | Remove 2to3's fix_callable... We reintroduced the callable built-inGregory P. Smith2016-09-101-92/+0
| | | | | | | | pretty early on in the 3.x series (3.1 or 3.2?).
* | issue27985 - fix the incorrect duplicate class name in the lib2to3Gregory P. Smith2016-09-091-1/+1
| | | | | | | | test. call it TestVarAnnotations instead.
* | Issue #28008: Implement PEP 530 -- asynchronous comprehensions.Yury Selivanov2016-09-091-0/+18
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* | Issue #27985: Implement PEP 526 -- Syntax for Variable Annotations.Yury Selivanov2016-09-091-0/+30
| | | | | | | | Patch by Ivan Levkivskyi.
* | Remove legacy "from __future__ import with_statement" lines.Gregory P. Smith ext:(%20%5BGoogle%20Inc.%5D)2016-09-083-6/+0
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* | lib2to3.pgen3.driver.load_grammar() now creates a stable cache fileGregory P. Smith ext:(%20%5BGoogle%20Inc.%5D)2016-09-082-4/+73
|\ \ | |/ | | | | | | between runs given the same Grammar.txt input regardless of the hash randomization setting.
| * lib2to3.pgen3.driver.load_grammar() now creates a stable cache fileGregory P. Smith ext:(%20%5BGoogle%20Inc.%5D)2016-09-082-6/+72
| | | | | | | | | | between runs given the same Grammar.txt input regardless of the hash randomization setting.
* | Issue #27095: Simplified MAKE_FUNCTION and removed MAKE_CLOSURE opcodes.Serhiy Storchaka2016-06-121-1/+1
| | | | | | | | Patch by Demur Rumed.
* | Issue #27030: Merge RE fix from 3.5Martin Panter2016-06-121-2/+3
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| * Fix buggy RE “\parrot_example.py”, uncovered by Issue #27030Martin Panter2016-06-121-2/+3
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* | Merge with 3.5Terry Jan Reedy2016-05-061-2/+2
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| * Issue 26911: fix import (other problems remain).Terry Jan Reedy2016-05-061-2/+2
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* | Remove more unused imports in tests.Serhiy Storchaka2016-04-241-2/+0
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* | Issue #23277: Remove unused imports in tests.Serhiy Storchaka2016-04-245-10/+2
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* | Issue #23277: Remove more unused sys and os imports.Serhiy Storchaka2016-04-243-5/+0
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* | Merge 3.5 (Issue #24619)Yury Selivanov2015-07-231-0/+22
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| * Issue #24619: Simplify async/await tokenization.Yury Selivanov2015-07-231-0/+22
| | | | | | | | | | | | | | | | | | | | This commit simplifies async/await tokenization in tokenizer.c, tokenize.py & lib2to3/tokenize.py. Previous solution was to keep a stack of async-def & def blocks, whereas the new approach is just to remember position of the outermost async-def block. This change won't bring any parsing performance improvements, but it makes the code much easier to read and validate.
* | Issue #13938: 2to3 converts StringTypes to a tuple. Patch from Mark Hammond.Robert Collins2015-07-221-0/+4
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* PEP 0492 -- Coroutines with async and await syntax. Issue #24017.Yury Selivanov2015-05-121-1/+31
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* Issue #22173: Update lib2to3 tests to use unittest test discovery.Zachary Ware2014-10-294-18/+14
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* Issue #22186: Fix typos in Lib/.Berker Peksag2014-10-191-1/+1
| | | | Patch by Févry Thibault.
* teach 2to3 about 'yield from'Benjamin Peterson2014-04-101-0/+7
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* add matrix multiplication operator support to 2to3Benjamin Peterson2014-04-101-0/+6
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* Issue #19936: Added executable bits or shebang lines to Python scripts whichSerhiy Storchaka2014-01-162-0/+0
|\ | | | | | | | | | | | | requires them. Disable executable bits and shebang lines in test and benchmark files in order to prevent using a random system python, and in source files of modules which don't provide command line interface. Fixed shebang lines in the unittestgui and checkpip scripts.
| * Issue #19936: Added executable bits or shebang lines to Python scripts whichSerhiy Storchaka2014-01-162-0/+0
| | | | | | | | | | | | | | requires them. Disable executable bits and shebang lines in test and benchmark files in order to prevent using a random system python, and in source files of modules which don't provide command line interface. Fixed shebang line to use python3 executable in the unittestgui script.
* | #10712: 2to3 has a new "asserts" fixer that replaces deprecated names of ↵Ezio Melotti2013-11-231-0/+50
| | | | | | | | unittest methods.
* | Issue #19592: Use specific asserts in lib2to3 tests.Serhiy Storchaka2013-11-145-17/+17
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| * Issue #19592: Use specific asserts in lib2to3 tests.Serhiy Storchaka2013-11-145-17/+17
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* | Issue #18037: Do not escape '\u' and '\U' in raw strings.Serhiy Storchaka2013-10-081-1/+1
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| * Issue #18037: Do not escape '\u' and '\U' in raw strings.Serhiy Storchaka2013-10-081-1/+1
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* | Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.Serhiy Storchaka2013-10-031-0/+37
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| * Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.Serhiy Storchaka2013-10-031-0/+37
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