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I get this traceback when running pylint min_bug.py
Traceback
************* Module min_bug
min_bug.py:1:0: C0114: Missing module docstring (missing-module-docstring)
min_bug.py:5:0: E0241: Duplicate bases for class '_ReproCtxManager' (duplicate-b
ases)
min_bug.py:10:15: E1101: Instance of 'str' has no '__await__' member (no-member)
min_bug.py:15:4: C0103: Argument name "tb" doesn't conform to snake_case naming
style (invalid-name)
min_bug.py:19:0: C0116: Missing function or method docstring (missing-function-d
ocstring)
Traceback (most recent call last):
File "c:\python37\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\python37\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Python37\Scripts\pylint.exe\__main__.py", line 7, in <module>
File "c:\python37\lib\site-packages\pylint\__init__.py", line 23, in run_pylin
t
PylintRun(sys.argv[1:])
File "c:\python37\lib\site-packages\pylint\lint.py", line 1731, in __init__
linter.check(args)
File "c:\python37\lib\site-packages\pylint\lint.py", line 1004, in check
self._do_check(files_or_modules)
File "c:\python37\lib\site-packages\pylint\lint.py", line 1165, in _do_check
self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)
File "c:\python37\lib\site-packages\pylint\lint.py", line 1252, in check_astro
id_module
walker.walk(ast_node)
File "c:\python37\lib\site-packages\pylint\utils\ast_walker.py", line 77, in w
alk
self.walk(child)
File "c:\python37\lib\site-packages\pylint\utils\ast_walker.py", line 77, in w
alk
self.walk(child)
File "c:\python37\lib\site-packages\pylint\utils\ast_walker.py", line 74, in w
alk
callback(astroid)
File "c:\python37\lib\site-packages\pylint\checkers\async.py", line 56, in vis
it_asyncwith
inferred = checker_utils.safe_infer(ctx_mgr)
File "c:\python37\lib\site-packages\pylint\checkers\utils.py", line 1084, in s
afe_infer
value = next(inferit)
File "c:\python37\lib\site-packages\astroid\decorators.py", line 131, in raise
_if_nothing_inferred
yield next(generator)
File "c:\python37\lib\site-packages\astroid\decorators.py", line 95, in wrappe
d
res = next(generator)
File "c:\python37\lib\site-packages\astroid\inference.py", line 227, in infer_
call
yield from callee.infer_call_result(caller=self, context=callcontext)
File "c:\python37\lib\site-packages\astroid\scoped_nodes.py", line 2136, in in
fer_call_result
if any(cls.name in EXCEPTION_BASE_CLASSES for cls in self.mro()):
File "c:\python37\lib\site-packages\astroid\scoped_nodes.py", line 2813, in mr
o
return self._compute_mro(context=context)
File "c:\python37\lib\site-packages\astroid\scoped_nodes.py", line 2802, in _c
ompute_mro
unmerged_mro = list(clean_duplicates_mro(unmerged_mro, self, context))
File "c:\python37\lib\site-packages\astroid\scoped_nodes.py", line 104, in cle
an_duplicates_mro
context=context,
astroid.exceptions.DuplicateBasesError: Duplicates found in MROs (_ReproCtxManag
er), (_GenericAlias, object), (_GenericAlias, object), (_GenericAlias, _GenericA
lias) for <ClassDef._ReproCtxManager l.5 at 0x2554c696988>.
Expected behavior
I would expect no exception raised and just have the E0241/duplicate-bases warning shown without the exception. I wasn't sure if I should put this issue here on astroid repo so I'm going with this one first.
pylint --version output
pylint 2.4.4
astroid 2.3.3
Python 3.7.5 (tags/v3.7.5:5c02a39a0b, Oct 15 2019, 00:11:34) [MSC v.1916 64 bit
(AMD64)]
This issue also happens on latest commit of master.
The text was updated successfully, but these errors were encountered:
Also let me add one thing, I am not sure if this was reported before so I'm not making issue for that as well, but I don't think this kind of code should generate duplicate-bases at all as it's valid to derive from 2 types to indicate it's both awaitable and async ctx manager.
In original code, we've just put ignore comment there (until this release which made it crash pylint) but ideally we shouldn't need to.
Steps to reproduce
Minimal code to reproduce the error (running pylint on a file with this contents will error out):
Current behavior
I get this traceback when running
pylint min_bug.py
Traceback
Expected behavior
I would expect no exception raised and just have the
E0241/duplicate-bases
warning shown without the exception. I wasn't sure if I should put this issue here on astroid repo so I'm going with this one first.pylint --version output
This issue also happens on latest commit of
master
.The text was updated successfully, but these errors were encountered: