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* bpo-44947: Refine the syntax error for trailing commas in import statements ↵Miss Islington (bot)2021-08-181-5/+8
| | | | | | | (GH-27814) (cherry picked from commit b2f68b190035540872072ac1d2349e7745e85596) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* [3.10] bpo-44885: Correct the ast locations of f-strings with format specs ↵Pablo Galindo Salgado2021-08-121-38/+30
| | | | | | | and repeated expressions (GH-27729) (GH-27743) (cherry picked from commit 8e832fb2a2cb54d7262148b6ec15563dffb48d63) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* [3.10] bpo-44838: Refine the custom syntax errors for invalid 'if' ↵Pablo Galindo Salgado2021-08-051-553/+610
| | | | | | | | | | | expressions (GH-27615). (GH-27616) … (cherry picked from commit f5cbea6b1b5fc39cca377c6cc93f222916015fc4) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> Automerge-Triggered-By: GH:lysnikolaou
* bpo-44792: Improve syntax errors for if expressions (GH-27506) (GH-27565)Miss Islington (bot)2021-08-021-0/+33
| | | | | (cherry picked from commit 28b6dc9dd5d1ce6f8aff7e06d4ef9afdc2bc8332) Co-authored-by: Miguel Brito <5544985+miguendes@users.noreply.github.com>
* bpo-34013: Don't consider a grouped expression when reporting legacy print ↵Miss Islington (bot)2021-08-011-5/+7
| | | | | | | syntax errors (GH-27521) (cherry picked from commit 208a7e957b812ad3b3733791845447677a704f3e) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* Update URLs in comments and metadata to use HTTPS (GH-27458) (GH-27478)Miss Islington (bot)2021-07-301-1/+1
| | | | | (cherry picked from commit be42c06bb01206209430f3ac08b72643dc7cad1c) Co-authored-by: Noah Kantrowitz <noah@coderanger.net>
* bpo-34013: Move the Python 2 hints from the exception constructor to the ↵Miss Islington (bot)2021-07-271-7/+7
| | | | | | | parser (GH-27392) (cherry picked from commit ecc3c8e4216958d85385bf2467441c975128f26c) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* [3.10] bpo-34013: Generalize the invalid legacy statement error message ↵Pablo Galindo Salgado2021-07-273-244/+323
| | | | | | | (GH-27389). (GH-27391) (cherry picked from commit 6948964ecf94e858448dd28eea634317226d2913) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* bpo-44317: Improve tokenizer errors with more informative locations ↵Miss Islington (bot)2021-07-101-18/+54
| | | | | | | (GH-26555) (GH-27079) (cherry picked from commit f24777c2b329974b69d2a3bf5cfc37e0fcace36c) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* bpo-44456: Improve the syntax error when mixing keyword and positional ↵Miss Islington (bot)2021-06-243-464/+638
| | | | | | | patterns (GH-26793) (cherry picked from commit 0acc258fe6f0ec200ca2f6f9294adbf52a244802) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* [3.10] bpo-44368: Improve syntax errors with invalid as pattern targets ↵Pablo Galindo2021-06-181-213/+313
| | | | | | | (GH-26632) (GH-26792) (cherry picked from commit 05073036dcecefc00b0c3e7397601809da41e2f1) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44409: Fix error location in tokenizer errors that happen during ↵Miss Islington (bot)2021-06-141-0/+1
| | | | | | | initialization (GH-26712) (cherry picked from commit 507ed6fa1d6661e0f8e6d3282764aa9625a99594) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44396: Update multi-line-start location when reallocating tokenizer ↵Miss Islington (bot)2021-06-121-0/+5
| | | | | | buffers (GH-26676) (GH-26695) Automerge-Triggered-By: GH:pablogsal (cherry picked from commit a342cc5891dbd8a08d40e9444f2e2c9e93258721)
* [3.10] Add more const modifiers. (GH-26691). (GH-26692)Serhiy Storchaka2021-06-123-15/+15
| | | | | (cherry picked from commit be8b631b7a587aa781245e14c8cca32970e1be5b) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-44385: Remove unused grammar rules (GH-26655)Miss Islington (bot)2021-06-101-1256/+791
| | | | | | Automerge-Triggered-By: GH:lysnikolaou (cherry picked from commit e7b4644607789848f9752a3bd20ff216e25b4156) Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-44368: Ensure we don't raise incorrect custom syntax errors with soft ↵Miss Islington (bot)2021-06-091-4/+11
| | | | | | | keywords (GH-26630) (cherry picked from commit 457ce60fc70f1c9290023f46fb82b6a490dff32e) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44349: Fix edge case when displaying text from files with encoding in ↵Miss Islington (bot)2021-06-091-2/+5
| | | | | | | | | syntax errors (GH-26611) (GH-26616) (cherry picked from commit 9fd21f649d66dcb10108ee395fd68ed32c8239cd) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-43833: Emit warnings for numeric literals followed by keyword (GH-25466)Miss Islington (bot)2021-06-081-0/+128
| | | | | | | | | | | Emit a deprecation warning if the numeric literal is immediately followed by one of keywords: and, else, for, if, in, is, or. Raise a syntax error with more informative message if it is immediately followed by other keyword or identifier. Automerge-Triggered-By: GH:pablogsal (cherry picked from commit 2ea6d890281c415e0a2f00e63526e592da8ce3d9) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-44335: Ensure the tokenizer doesn't go into Python with the error set ↵Miss Islington (bot)2021-06-081-3/+17
| | | | | | | (GH-26608) (cherry picked from commit bafe0aade5741ab0d13143ee261711fdd65e8a1f) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44335: Fix a regression when identifying invalid characters in syntax ↵Miss Islington (bot)2021-06-081-1/+3
| | | | | | | errors (GH-26589) (cherry picked from commit d334c73b56756e90c33ce06e3a6ec23271aa099d) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* fix: use unambiguous punction in 'invalid escape sequence' message (GH-26582)Miss Islington (bot)2021-06-081-2/+2
| | | | | (cherry picked from commit ffd87b7093109c279caf8e3ca060f408a102388a) Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>
* [3.10] bpo-44305: Improve syntax error for try blocks without except or ↵Pablo Galindo2021-06-031-269/+358
| | | | | | | finally (GH-26523) (GH-26524) (cherry picked from commit b250f89bb7e05e72a4641d44b988866b919575db) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* [3.10] bpo-44273: Improve syntax error message for assigning to "..." ↵Pablo Galindo2021-06-031-1/+1
| | | | | | | | | | (GH-26477) (GH-26478) Use "ellipsis" instead of "Ellipsis" in syntax error messages to eliminate confusion with built-in variable Ellipsis. (cherry picked from commit 39dd141) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-11105: Do not crash when compiling recursive ASTs (GH-20594)Miss Islington (bot)2021-06-031-4/+15
| | | | | | | | | | When compiling an AST object with a direct / indirect reference cycles, on the conversion phase because of exceeding amount of calls, a segfault was raised. This patch adds recursion guards to places for preventing user inputs to not to crash AST but instead raise a RecursionError. (cherry picked from commit f3491242e41933aa9529add7102edb68b80a25e9) Co-authored-by: Batuhan Taskaya <batuhan@python.org>
* bpo-44201: Avoid side effects of "invalid_*" rules in the REPL (GH-26298) ↵Miss Islington (bot)2021-05-223-0/+22
| | | | | | | | | | | | | | | | | | (GH-26313) When the parser does a second pass to check for errors, these rules can have some small side-effects as they may advance the parser more than the point reached in the first pass. This can cause the tokenizer to ask for extra tokens in interactive mode causing the tokenizer to show the prompt instead of failing instantly. To avoid this, add a new mode to the tokenizer that is activated in the second pass and deactivates asking for new tokens when the interactive line is finished. As the parsing should have reached the last line in the first pass, the second pass should not need to ask for more tokens. (cherry picked from commit bd7476dae337e905e7b1bbf33ddb96cc270fdc84) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44180: Fix edge cases in invalid assigment rules in the parser (GH-26283)Miss Islington (bot)2021-05-213-1172/+1403
| | | | | | | | | | | | | | | | | | The invalid assignment rules are very delicate since the parser can easily raise an invalid assignment when a keyword argument is provided. As they are very deep into the grammar tree, is very difficult to specify in which contexts these rules can be used and in which don't. For that, we need to use a different version of the rule that doesn't do error checking in those situations where we don't want the rule to raise (keyword arguments and generator expressions). We also need to check if we are in left-recursive rule, as those can try to eagerly advance the parser even if the parse will fail at the end of the expression. Failing to do this allows the parser to start parsing a call as a tuple and incorrectly identify a keyword argument as an invalid assignment, before it realizes that it was not a tuple after all. (cherry picked from commit c878a9796841c1f4726e6dd5ac49a478af4c8504) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44180: Report generic syntax errors in the furthest position reached in ↵Miss Islington (bot)2021-05-211-1/+6
| | | | | | | the first parser pass (GH-26253) (GH-26281) (cherry picked from commit b51081c1a8cf01b92ba0692173e1b9274a57f455) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44168: Fix error message in the parser for keyword arguments for invalid ↵Miss Islington (bot)2021-05-191-541/+584
| | | | | | | | | expressions (GH-26210) (GH-26247) (cherry picked from commit 33c0c90dea06fda1df99482521559ebef7210bea) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-44143: Fix crash in the parser when raising tokenizer errors with an ↵Miss Islington (bot)2021-05-151-0/+1
| | | | | | | exception set (GH-26144) (GH-26148) (cherry picked from commit 80b089179fa798c8ceaab2ff699c82499b2fcacd) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-43149: Correct the syntax error message for multiple exception types ↵Miss Islington (bot)2021-05-091-1/+1
| | | | | | | | | | (GH-25996) GH-25997) Automerge-Triggered-By: GH:pablogsal (cherry picked from commit 6692dc1ca99fb34a19d0a4b93cf8e10619490001) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-43822: Prioritize tokenizer errors over custom syntax errors when ↵Miss Islington (bot)2021-05-041-0/+3
| | | | | | | raising parser exceptions (GH-25866) (cherry picked from commit 9142088e7454a392b69a627863b235ecc32aea54) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-43892: Validate the first term of complex literal value patterns (GH-25735)Brandt Bucher2021-04-303-397/+526
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* bpo-43892: Make match patterns explicit in the AST (GH-25585)Nick Coghlan2021-04-294-745/+1352
| | | Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-30555: Fix WindowsConsoleIO fails in the presence of fd redirection ↵Segev Finer2021-04-231-4/+2
| | | | | | | | (GH-1927) This works by not caching the handle and instead getting the handle from the file descriptor each time, so that if the actual handle changes by fd redirection closing/opening the console handle beneath our feet, we will keep working correctly.
* bpo-43914: Highlight invalid ranges in SyntaxErrors (#25525)Pablo Galindo2021-04-233-471/+596
| | | | | | | | | | | | | | | | | To improve the user experience understanding what part of the error messages associated with SyntaxErrors is wrong, we can highlight the whole error range and not only place the caret at the first character. In this way: >>> foo(x, z for z in range(10), t, w) File "<stdin>", line 1 foo(x, z for z in range(10), t, w) ^ SyntaxError: Generator expression must be parenthesized becomes >>> foo(x, z for z in range(10), t, w) File "<stdin>", line 1 foo(x, z for z in range(10), t, w) ^^^^^^^^^^^^^^^^^^^^ SyntaxError: Generator expression must be parenthesized
* bpo-43859: Improve the error message for IndentationError exceptions (GH-25431)Pablo Galindo2021-04-211-541/+1975
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* bpo-43823: Fix location of one of the errors for invalid dictionary literals ↵Pablo Galindo2021-04-151-1/+1
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* bpo-43822: Improve syntax errors for missing commas (GH-25377)Pablo Galindo2021-04-154-637/+796
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* bpo-43823: Improve syntax errors for invalid dictionary literals (GH-25378)Pablo Galindo2021-04-151-364/+778
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* bpo-43797: Handle correctly invalid assignments inside function calls and ↵Pablo Galindo2021-04-131-6/+6
| | | | generators (GH-25390)
* Ensure that early = are not matched by the parser as invalid comparisons ↵Pablo Galindo2021-04-131-318/+413
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* bpo-43797: Improve syntax error for invalid comparisons (#25317)Pablo Galindo2021-04-122-592/+1152
| | | | | | | | | | | | | * bpo-43797: Improve syntax error for invalid comparisons * Update Lib/test/test_fstring.py Co-authored-by: Guido van Rossum <gvanrossum@gmail.com> * Apply review comments * can't -> cannot Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>
* bpo-43798: Add source location attributes to alias (GH-25324)Matthew Suozzo2021-04-104-7/+62
| | | | | | | * Add source location attributes to alias. * Move alias star construction to pegen helper. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* Simplify _PyPegen_fill_token in pegen.c (GH-25295)Pablo Galindo2021-04-091-58/+64
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* Sanitize macros and debug functions in pegen.c (GH-25291)Pablo Galindo2021-04-092-3/+10
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* Break down some complex functions in pegen.c for readability (GH-25292)Pablo Galindo2021-04-081-79/+91
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* Fix possible refleak involving _PyArena_AddPyObject (GH-25289)Erlend Egeberg Aasland2021-04-081-1/+4
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* bpo-43244: Rename pycore_ast.h functions to _PyAST_xxx() (GH-25252)Victor Stinner2021-04-074-210/+211
| | | | | | Rename AST functions of pycore_ast.h to use the "_PyAST_" prefix. Remove macros creating aliases without prefix. For example, Module() becomes _PyAST_Module(). Update Grammar/python.gram to use _PyAST_xxx() functions.
* bpo-43244: Remove Yield macro from pycore_ast.h (GH-25243)Victor Stinner2021-04-071-36/+31
| | | | | | | | * pycore_ast.h no longer defines the Yield macro. * Fix a compiler warning on Windows: "warning C4005: 'Yield': macro redefinition". * Python-ast.c now defines directly functions with their real _Py_xxx() name, rather than xxx(). * Remove "#undef Yield" in C files including pycore_ast.h.
* bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25142)Inada Naoki2021-04-021-1/+1
| | | | | | | | | | | | | * test__xxsubinterpreters * test_builtin * test_doctest * test_exceptions * test_opcodes * test_support * test_argparse * test_baseexception * test_bdb * test_bool * test_asdl_parser
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