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Catch an error with illegal class instances, fixes #1491

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This commit is contained in:
Dave Halter
2020-02-03 22:27:22 +01:00
parent a49c757b8a
commit 3388a9659b
2 changed files with 13 additions and 1 deletions
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4
jedi/inference/compiled/access.py
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@@ -570,4 +570,6 @@ def _is_class_instance(obj):
except AttributeError:
return False
else:
return cls != type and not issubclass(cls, NOT_CLASS_TYPES)
# The isinstance check for cls is just there so issubclass doesn't
# raise an exception.
return cls != type and isinstance(cls, type) and not issubclass(cls, NOT_CLASS_TYPES)

10
test/test_api/test_interpreter.py
View File

@@ -530,6 +530,16 @@ def test__wrapped__():
assert c.line == syslogs_to_df.__wrapped__.__code__.co_firstlineno + 1
@pytest.mark.skipif(sys.version_info[0] == 2, reason="Ignore Python 2, because EOL")
def test_illegal_class_instance():
class X:
__class__ = 1
X.__name__ = 'asdf'
d, = jedi.Interpreter('foo', [{'foo': X()}]).infer()
v, = d._name.infer()
assert not v.is_instance()
@pytest.mark.skipif(sys.version_info[0] == 2, reason="Ignore Python 2, because EOL")
@pytest.mark.parametrize('module_name', ['sys', 'time', 'unittest.mock'])
def test_core_module_completes(module_name):