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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"pylint is broken with CPython main","articleBody":"# Bug report\r\n\r\n`pylint` currently crashes with CPython main.  I noticed this when I noticed the `pylint` benchmark in Pyston's benchmark suite was no longer working.\r\n\r\nThe first bad commit is 4a1c58d504a49eeb9be7beef3ca861a9d6b28ede (@markshannon), issue #96793, PR #98772.\r\n\r\nI don't know whether this is the result of expected breakage (and `pylint` or `astroid` needs to modify their code) or there is a specialization failure here.\r\n\r\n# Your environment\r\n\r\nLinux\r\n\r\n# To reproduce\r\n\r\n`pip install pylint==2.16.2`\r\n\r\nDownload the example Python file from [the pyston macrobenchmark suite](https://github.com/pyston/python-macrobenchmarks/blob/main/benchmarks/bm_pylint/data/pylint_target/dist.py)\r\n\r\n`pylint dist.py`\r\n\r\nBacktrace:\r\n\r\n```pytb\r\nException on node \u003cCall l.430 at 0x7ff062d76ae0\u003e in file '/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/data/pylint_target/dist.py'\r\nTraceback (most recent call last):\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/inference.py\", line 450, in infer_subscript\r\n    assigned = value.getitem(index_value, context)\r\n               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/nodes/node_classes.py\", line 2466, in getitem\r\n    raise AstroidIndexError(index)\r\nastroid.exceptions.AstroidIndexError: \u003cexception str() failed\u003e\r\n\r\nThe above exception was the direct cause of the following exception:\r\n\r\nTraceback (most recent call last):\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/pylint/utils/ast_walker.py\", line 91, in walk\r\n    callback(astroid)\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/pylint/checkers/base/basic_checker.py\", line 705, in visit_call\r\n    if utils.is_terminating_func(node):\r\n       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/pylint/checkers/utils.py\", line 2181, in is_terminating_func\r\n    return True\r\n           ^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/nodes/node_ng.py\", line 171, in infer\r\n    yield from self._infer(context=context, **kwargs)\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/decorators.py\", line 142, in raise_if_nothing_inferred\r\n    yield next(generator)\r\n          ^^^^^^^^^^^^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/decorators.py\", line 119, in wrapped\r\n    yielded.add(ares)\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/inference.py\", line 380, in infer_attribute\r\n    context.boundnode = old_boundnode\r\n    ^^^^^^^^^^^^^^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/nodes/node_ng.py\", line 184, in infer\r\n    for i, result in enumerate(self._infer(context=context, **kwargs)):\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/decorators.py\", line 142, in raise_if_nothing_inferred\r\n    yield next(generator)\r\n          ^^^^^^^^^^^^^^^\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/decorators.py\", line 119, in wrapped\r\n    yielded.add(ares)\r\n  File \"/home/mdboom/Work/builds/python-macrobenchmarks/benchmarks/bm_pylint/venv/lib/python3.12/site-packages/astroid/inference.py\", line 458, in infer_subscript\r\n    raise InferenceError(node=self, context=context) from exc\r\nastroid.exceptions.InferenceError: Inference failed for \u003cSubscript l.430 at 0x7ff062d76b40\u003e.\r\n************* Module pylint_target.dist\r\ndata/pylint_target/dist.py:1:0: C0302: Too many lines in module (1261/1000) (too-many-lines)\r\ndata/pylint_target/dist.py:22:0: E0401: Unable to import 'distutils.errors' (import-error)\r\ndata/pylint_target/dist.py:22:0: W4901: Deprecated module 'distutils.errors' (deprecated-module)\r\ndata/pylint_target/dist.py:22:0: W0401: Wildcard import distutils.errors (wildcard-import)\r\ndata/pylint_target/dist.py:23:0: E0401: Unable to import 'distutils.fancy_getopt' (import-error)\r\ndata/pylint_target/dist.py:23:0: W4901: Deprecated module 'distutils.fancy_getopt' (deprecated-module)\r\ndata/pylint_target/dist.py:24:0: E0401: Unable to import 'distutils.util' (import-error)\r\ndata/pylint_target/dist.py:24:0: W4901: Deprecated module 'distutils.util' (deprecated-module)\r\ndata/pylint_target/dist.py:25:0: E0401: Unable to import 'distutils' (import-error)\r\ndata/pylint_target/dist.py:25:0: W4901: Deprecated module 'distutils' (deprecated-module)\r\ndata/pylint_target/dist.py:26:0: E0401: Unable to import 'distutils.debug' (import-error)\r\ndata/pylint_target/dist.py:26:0: W4901: Deprecated module 'distutils.debug' (deprecated-module)\r\ndata/pylint_target/dist.py:49:0: R0902: Too many instance attributes (27/7) (too-many-instance-attributes)\r\ndata/pylint_target/dist.py:278:26: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)\r\ndata/pylint_target/dist.py:141:4: R0912: Too many branches (18/12) (too-many-branches)\r\ndata/pylint_target/dist.py:141:4: R0915: Too many statements (60/50) (too-many-statements)\r\ndata/pylint_target/dist.py:305:8: W0622: Redefining built-in 'dict' (redefined-builtin)\r\ndata/pylint_target/dist.py:310:4: C0116: Missing function or method docstring (missing-function-docstring)\r\ndata/pylint_target/dist.py:311:8: C0415: Import outside toplevel (pprint.pformat) (import-outside-toplevel)\r\ndata/pylint_target/dist.py:328:30: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)\r\ndata/pylint_target/dist.py:331:30: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)\r\ndata/pylint_target/dist.py:382:26: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)\r\ndata/pylint_target/dist.py:386:4: C0116: Missing function or method docstring (missing-function-docstring)\r\ndata/pylint_target/dist.py:387:8: C0415: Import outside toplevel (configparser.ConfigParser) (import-outside-toplevel)\r\ndata/pylint_target/dist.py:410:30: C0209: Formatting a regular string which could be a f-string (consider-using-f-string)\r\ndata/pylint_target/dist.py:424:12: C2801: Unnecessarily calls dunder method __init__. Instantiate class directly. (unnecessary-dunder-call)\r\ndata/pylint_target/dist.py:1:0: F0002: data/pylint_target/dist.py: Fatal error while checking 'data/pylint_target/dist.py'. Please open an issue in our bug tracker so we address this. There is a pre-filled template that you can use in '/home/mdboom/.cache/pylint/pylint-crash-2023-02-14-15-25-33.txt'. (astroid-error)\r\n\r\n------------------------------------------------------------------\r\nYour code has been rated at 0.00/10 (previous run: 0.00/10, +0.00)\r\n```\r\n","author":{"url":"https://github.com/mdboom","@type":"Person","name":"mdboom"},"datePublished":"2023-02-14T20:30:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/101914/cpython/issues/101914"}