TypeError: 'Uninferable' object is not iterable #2434

cdeil · 2018-08-22T07:45:20Z

I'm getting this error:

$ make pylint
pylint -E gammapy/ \
	--ignore=_astropy_init.py,gammapy/extern \
	-d E0611,E1101,E1103 \
	--msg-template='{C}: {path}:{line}:{column}: {msg} ({symbol})' -f colorized
************* Module gammapy.__main__
E: gammapy/__main__.py:14:9: No value for argument 'log_level' in function call (no-value-for-parameter)
E: gammapy/__main__.py:14:9: No value for argument 'ignore_warnings' in function call (no-value-for-parameter)
************* Module gammapy.maps.hpx
E: gammapy/maps/hpx.py:9:0: Unable to import 'gammapy.extern.six.moves' (import-error)
************* Module gammapy.maps.wcs
E: gammapy/maps/wcs.py:1086:8: Possible unbalanced tuple unpacking with sequence defined at line 1079: left side has 2 label(s), right side has 3 value(s) (unbalanced-tuple-unpacking)
************* Module gammapy.background.reflected
E: gammapy/background/reflected.py:62:57: bad operand type for unary -: tuple (invalid-unary-operand-type)
E: gammapy/background/reflected.py:62:57: bad operand type for unary -: NoneType (invalid-unary-operand-type)
************* Module gammapy.cube.models
E: gammapy/cube/models.py:184:22: self.spatial_model is not callable (not-callable)
E: gammapy/cube/models.py:185:23: self.spectral_model is not callable (not-callable)
************* Module gammapy.catalog.gammacat
E: gammapy/catalog/gammacat.py:182:18: Too many arguments for format string (too-many-format-args)
Traceback (most recent call last):
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/bin/pylint", line 11, in <module>
    sys.exit(run_pylint())
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/__init__.py", line 19, in run_pylint
    Run(sys.argv[1:])
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/lint.py", line 1394, in __init__
    linter.check(args)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/lint.py", line 801, in check
    self._do_check(files_or_modules)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/lint.py", line 938, in _do_check
    self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/lint.py", line 1018, in check_astroid_module
    walker.walk(ast_node)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/utils.py", line 1162, in walk
    self.walk(child)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/utils.py", line 1159, in walk
    cb(astroid)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/checkers/imports.py", line 422, in visit_importfrom
    imported_module = self._get_imported_module(node, basename)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/pylint/checkers/imports.py", line 647, in _get_imported_module
    return importnode.do_import_module(modname)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/mixins.py", line 101, in do_import_module
    relative_only=level and level >= 1)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/scoped_nodes.py", line 602, in import_module
    return MANAGER.ast_from_module_name(absmodname)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/manager.py", line 150, in ast_from_module_name
    return self.ast_from_file(found_spec.location, modname, fallback=False)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/manager.py", line 83, in ast_from_file
    return AstroidBuilder(self).file_build(filepath, modname)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 128, in file_build
    return self._post_build(module, encoding)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 145, in _post_build
    self.add_from_names_to_locals(from_node)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 190, in add_from_names_to_locals
    imported = node.do_import_module()
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/mixins.py", line 101, in do_import_module
    relative_only=level and level >= 1)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/scoped_nodes.py", line 602, in import_module
    return MANAGER.ast_from_module_name(absmodname)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/manager.py", line 150, in ast_from_module_name
    return self.ast_from_file(found_spec.location, modname, fallback=False)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/manager.py", line 83, in ast_from_file
    return AstroidBuilder(self).file_build(filepath, modname)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 128, in file_build
    return self._post_build(module, encoding)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 148, in _post_build
    self.delayed_assattr(delayed)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/builder.py", line 207, in delayed_assattr
    for inferred in node.expr.infer():
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/bases.py", line 125, in _infer_stmts
    for inferred in stmt.infer(context=context):
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/util.py", line 148, in limit_inference
    yield from islice(iterator, size)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/context.py", line 107, in cache_generator
    for result in generator:
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 125, in raise_if_nothing_inferred
    yield next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/decorators.py", line 92, in wrapped
    res = next(generator)
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/inference.py", line 219, in infer_call
    context=callcontext,
  File "/Users/deil/software/anaconda3/envs/gammapy-dev/lib/python3.6/site-packages/astroid/scoped_nodes.py", line 2066, in infer_call_result
    caller, context)
TypeError: 'Uninferable' object is not iterable
make: *** [pylint] Error 1

Version:

(gammapy-dev) hfm-1804a:gammapy deil$ pylint --version
pylint 2.1.1
astroid 2.0.2
Python 3.6.0 | packaged by conda-forge | (default, Feb 10 2017, 07:08:35) 
[GCC 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)]

This should let you reproduce:

git clone https://github.com/gammapy/gammapy.git
cd gammapy
make pylint

The text was updated successfully, but these errors were encountered:

cdeil · 2018-08-22T07:47:47Z

I still get the same error after pip install pylint astroid --pre -U:
https://gist.github.com/cdeil/d82b9c8a058d9a85d53f3d0654500b40

PCManticore · 2018-08-22T08:32:53Z

Thanks for creating an issue! This should be fixed now in astroid's master.

cdeil · 2018-08-22T08:35:25Z

@PCManticore - Wow, you fix bugs in < 1 hour after they are reported. Thanks!

Is a bugfix release coming up in the next days, or should I install master?

PCManticore · 2018-08-22T08:38:35Z

No worries, thanks for the clear report!
Probably not this week, so feel free to use master in the meantime, but the plan is to have a pylint 2.2 release by the end of the month.

Hornwitser · 2018-08-23T03:36:28Z

This doesn't appear to have been fixed. I'm running the latest astroid master (commit 1f0eff526dcc3dea0af68288c719d23767bd2581) and I get

Traceback (most recent call last):
  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/.../pylint/pylint/__main__.py", line 7, in <module>
    pylint.run_pylint()
  File "/home/.../pylint/pylint/__init__.py", line 19, in run_pylint
    Run(sys.argv[1:])
  File "/home/.../pylint/pylint/lint.py", line 1394, in __init__
    linter.check(args)
  File "/home/.../pylint/pylint/lint.py", line 801, in check
    self._do_check(files_or_modules)
  File "/home/.../pylint/pylint/lint.py", line 938, in _do_check
    self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)
  File "/home/.../pylint/pylint/lint.py", line 1018, in check_astroid_module
    walker.walk(ast_node)
  File "/home/.../pylint/pylint/utils.py", line 1162, in walk
    self.walk(child)
  File "/home/.../pylint/pylint/utils.py", line 1159, in walk
    cb(astroid)
  File "/home/.../pylint/pylint/checkers/exceptions.py", line 406, in visit_tryexcept
    self._check_try_except_raise(node)
  File "/home/.../pylint/pylint/checkers/exceptions.py", line 384, in _check_try_except_raise
    inferred_current = utils.safe_infer(exc_in_current_handler)
  File "/home/.../pylint/pylint/checkers/utils.py", line 867, in safe_infer
    value = next(inferit)
TypeError: 'Uninferable' object is not an iterator

When running pylint on

import asyncio

try:
    pass
except invalid_name:
    raise
except asyncio.CancelledError:
    pass

And almost identical traceback (only last line differs)

  File "/home/.../pylint/pylint/checkers/utils.py", line 866, in safe_infer
    inferit = node.infer(context=context)
AttributeError: 'NoneType' object has no attribute 'infer'

running pylint on

try:
    pass
except invalid_name:
    raise
except invalid_name:
    pass

PCManticore · 2018-08-23T07:15:53Z

@Hornwitser From the stack trace, this looks like a completely different problem, albeit involving the same Uninferable object.

Close #2434

PCManticore · 2018-08-23T07:22:09Z

@Hornwitser The linked pylint commit should fix the problem for you. Make sure to get the latest pylint from github.

Hornwitser · 2018-08-23T22:14:18Z

Oh, it looked the same to me. Sorry about that. The latest master works, thanks 👍.

pythonpro7 · 2024-09-06T13:30:02Z

https://pythoner.space/questions/pylint-reported-an-error-when-trying-to-unpack-a-non-iterable-object

PCManticore closed this as completed in pylint-dev/astroid@1f0eff5 Aug 22, 2018

cdeil mentioned this issue Aug 22, 2018

Errors pointed out by make pylint gammapy/gammapy#1729

Closed

Hornwitser mentioned this issue Aug 23, 2018

Fix mulitple issues with import graph #2415

Merged

PCManticore added a commit that referenced this issue Aug 23, 2018

Make sure to filter out None and Uninferable when gathering exceptions

064f378

Close #2434

This was referenced Dec 20, 2018

Bump astroid from 1.6.3 to 2.1.0 ChrisRBe/PP-P2P-Parser#53

Merged

Bump astroid from 2.0.4 to 2.1.0 gita/BhagavadGita#146

Merged

dependabot-preview bot mentioned this issue Jan 1, 2019

Bump astroid from 1.5.3 to 2.1.0 Contrast-Security-OSS/DjanGoat#51

Closed

dependabot-preview bot mentioned this issue Jan 28, 2019

Bump astroid from 2.0.4 to 2.1.0 toastwaffle/LiME#57

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Bump astroid from 1.5.3 to 2.1.0 shadowimmage/django-server-apps#5

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This was referenced Feb 12, 2019

Bump astroid from 1.4.9 to 2.1.0 Rotendahl/DormitoryLife#59

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Bump astroid from 1.6.3 to 2.1.0 vovanbo/aiohttp_json_api#338

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TypeError: 'Uninferable' object is not iterable #2434

TypeError: 'Uninferable' object is not iterable #2434

cdeil commented Aug 22, 2018

cdeil commented Aug 22, 2018

PCManticore commented Aug 22, 2018

cdeil commented Aug 22, 2018

PCManticore commented Aug 22, 2018

Hornwitser commented Aug 23, 2018

PCManticore commented Aug 23, 2018

PCManticore commented Aug 23, 2018

Hornwitser commented Aug 23, 2018

pythonpro7 commented Sep 6, 2024

TypeError: 'Uninferable' object is not iterable #2434

TypeError: 'Uninferable' object is not iterable #2434

Comments

cdeil commented Aug 22, 2018

cdeil commented Aug 22, 2018

PCManticore commented Aug 22, 2018

cdeil commented Aug 22, 2018

PCManticore commented Aug 22, 2018

Hornwitser commented Aug 23, 2018

PCManticore commented Aug 23, 2018

PCManticore commented Aug 23, 2018

Hornwitser commented Aug 23, 2018

pythonpro7 commented Sep 6, 2024