Public bug reported:
A simple "import ruamel.yaml" causes pylint3 to show a stack trace when
run inside a schroot session from sbuild:
echo "import ruamel.yaml" > test.py
pylint3 --reports=no test.py
No config file found, using default configuration
************* Module test
C: 1, 0: Missing module docstring (missing-docstring)
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/astroid/manager.py", line 172, in
file_from_module_name
value = self._mod_file_cache[(modname, contextfile)]
KeyError: ('ruamel.yaml', None)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/pylint3", line 3, in <module>
run_pylint()
File "/usr/lib/python3/dist-packages/pylint/__init__.py", line 23, in
run_pylint
Run(sys.argv[1:])
File "/usr/lib/python3/dist-packages/pylint/lint.py", line 1315, in __init__
linter.check(args)
File "/usr/lib/python3/dist-packages/pylint/lint.py", line 736, in check
self._do_check(files_or_modules)
File "/usr/lib/python3/dist-packages/pylint/lint.py", line 867, in _do_check
self.check_astroid_module(ast_node, walker, rawcheckers, tokencheckers)
File "/usr/lib/python3/dist-packages/pylint/lint.py", line 947, in
check_astroid_module
walker.walk(ast_node)
File "/usr/lib/python3/dist-packages/pylint/utils.py", line 938, in walk
self.walk(child)
File "/usr/lib/python3/dist-packages/pylint/utils.py", line 935, in walk
cb(astroid)
File "/usr/lib/python3/dist-packages/pylint/checkers/variables.py", line
1009, in visit_import
self._check_module_attrs(node, module, parts[1:])
File "/usr/lib/python3/dist-packages/pylint/checkers/variables.py", line
1096, in _check_module_attrs
module = next(module.getattr(name)[0].infer())
File "/usr/lib/python3/dist-packages/astroid/scoped_nodes.py", line 92, in
decorator
nodes = [n for n in func(*args, **kwargs) if not isinstance(n, cls)]
File "/usr/lib/python3/dist-packages/astroid/scoped_nodes.py", line 434, in
getattr
return [self.import_module(name, relative_only=True)]
File "/usr/lib/python3/dist-packages/astroid/scoped_nodes.py", line 492, in
import_module
return MANAGER.ast_from_module_name(absmodname)
File "/usr/lib/python3/dist-packages/astroid/manager.py", line 116, in
ast_from_module_name
filepath, mp_type = self.file_from_module_name(modname, context_file)
File "/usr/lib/python3/dist-packages/astroid/manager.py", line 176, in
file_from_module_name
modname.split('.'), context_file=contextfile)
File "/usr/lib/python3/dist-packages/astroid/modutils.py", line 369, in
file_info_from_modpath
return _file_from_modpath(modpath, path, context)
File "/usr/lib/python3/dist-packages/astroid/modutils.py", line 582, in
_file_from_modpath
mtype, mp_filename = _module_file(modpath, path)
File "/usr/lib/python3/dist-packages/astroid/modutils.py", line 670, in
_module_file
stream, mp_filename, mp_desc = imp.find_module(modname, path)
File "/usr/lib/python3.5/imp.py", line 270, in find_module
"not {}".format(type(path)))
RuntimeError: 'path' must be None or a list, not <class
'_frozen_importlib_external._NamespacePath'>
debian/rules:7: recipe for target 'override_dh_auto_test' failed
You can reproduce this bug by creating a small Debian package, add
pylint3 and python3-ruamel.yaml to its build dependencies and add this
debian/rules snippet:
override_dh_auto_test:
echo "import ruamel.yaml" > test.py
pylint3 --reports=no test.py
Package versions:
* pylint3 1.5.6-1
* python3-astroid 1.4.8-1
* python3.5 3.5.2-9
Full list of packages is attached.
** Affects: pylint (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "package_versions"
https://bugs.launchpad.net/bugs/1651098/+attachment/4793912/+files/package_versions
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https://bugs.launchpad.net/bugs/1651098
Title:
RuntimeError: 'path' must be None or a list, not <class
'_frozen_importlib_external._NamespacePath'>
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