Find frozen stdlib modules

[DanielNoord]

Steps

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Description

Closes #1512.

Related is python/cpython#65935. I'm not sure how to test this on 3.10 though as this is a new feature on 3.11. That would be the next step.

Type of Changes

	Type
✓	✨ New feature

Related Issue

[coveralls]

Pull Request Test Coverage Report for Build 2207138448

• 7 of 7 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.09%) to 91.588%

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Totals
Change from base Build 2207055108:	0.09%
Covered Lines:	9102
Relevant Lines:	9938

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💛 - Coveralls

[DanielNoord]

Turns out this fixes all other outstanding issues with 3.11. 😄

I do wonder why the test suite is so incredibly slow though. Is that an issue with us? Or is pytest running slow on 3.11?

[DanielNoord]

Locally, with 3.10:

2.10s call     tests/unittest_nodes.py::ImportNodeTest::test_from_self_resolve
1.34s call     tests/unittest_brain.py::SixBrainTest::test_attribute_access
1.25s call     tests/unittest_brain.py::ModuleExtenderTest::test_extension_modules
0.70s call     tests/unittest_manager.py::AstroidManagerTest::test_ast_from_class
0.61s call     tests/unittest_scoped_nodes.py::ClassNodeTest::test_mro_typing_extensions
0.55s call     tests/unittest_builder.py::BuilderTest::test_inspect_build0
0.46s call     tests/unittest_manager.py::AstroidManagerTest::test_ast_from_class_with_module
0.42s call     tests/unittest_builder.py::BuilderTest::test_inspect_build_type_object
0.38s call     tests/unittest_brain.py::CollectionsDequeTests::test_deque
0.31s call     tests/unittest_brain.py::ReBrainTest::test_re_pattern_subscriptable
0.29s call     tests/unittest_inference.py::InferenceTest::test_unary_operands
0.29s call     tests/unittest_scoped_nodes.py::ModuleNodeTest::test_stream_api
0.28s call     tests/unittest_scoped_nodes.py::ClassNodeTest::test_has_dynamic_getattr
0.26s call     tests/unittest_brain.py::DateutilBrainTest::test_parser
0.24s call     tests/unittest_brain.py::TypingBrain::test_callable_type
0.24s call     tests/unittest_nodes.py::ImportNodeTest::test_bad_import_inference
0.24s call     tests/unittest_brain.py::MultiprocessingBrainTest::test_multiprocessing_manager
0.23s call     tests/unittest_brain.py::AttrsTest::test_attr_transform
0.21s call     tests/unittest_builder.py::test_module_build_dunder_file
0.19s call     tests/unittest_brain.py::SubprocessTest::test_popen_does_not_have_class_getitem

With 3.11.0a7:

1.83s call     tests/unittest_nodes.py::ImportNodeTest::test_from_self_resolve
1.33s call     tests/unittest_brain.py::ModuleExtenderTest::test_extension_modules
0.67s call     tests/unittest_brain.py::test_http_client_brain
0.59s call     tests/unittest_scoped_nodes.py::ClassNodeTest::test_mro_typing_extensions
0.58s call     tests/unittest_builder.py::BuilderTest::test_inspect_build_type_object
0.55s call     tests/unittest_manager.py::AstroidManagerTest::test_ast_from_class_with_module
0.47s call     tests/unittest_builder.py::BuilderTest::test_inspect_build0
0.34s call     tests/unittest_manager.py::AstroidManagerTest::test_ast_from_class
0.33s call     tests/unittest_brain.py::CollectionsDequeTests::test_deque
0.32s call     tests/unittest_scoped_nodes.py::ModuleNodeTest::test_without_docstring
0.32s call     tests/unittest_brain.py::TypingBrain::test_callable_type
0.29s call     tests/unittest_brain.py::AttrsTest::test_attr_transform
0.25s call     tests/unittest_brain.py::ReBrainTest::test_regex_flags
0.23s call     tests/unittest_scoped_nodes.py::ClassNodeTest::test_has_dynamic_getattr
0.21s call     tests/unittest_brain.py::MultiprocessingBrainTest::test_multiprocessing_manager
0.21s call     tests/unittest_inference.py::InferenceTest::test_no_infinite_ancestor_loop
0.19s call     tests/unittest_nodes.py::ImportNodeTest::test_bad_import_inference
0.17s call     tests/unittest_brain.py::ReBrainTest::test_re_pattern_subscriptable
0.17s call     tests/unittest_builder.py::test_module_build_dunder_file
0.16s call     tests/unittest_inference.py::InferenceTest::test_two_parents_from_same_module

So, possible something to do with the runner/GA?

[DanielNoord]

I got some data in DanielNoord#20.

Not immediately sure what is causing this. But since main is also affected I don't think it is due to this PR.

[cdce8p]

LGTM! A very elegant solution. Thank you @DanielNoord 🐬

[cdce8p]

I do wonder why the test suite is so incredibly slow though. Is that an issue with us? Or is pytest running slow on 3.11?

One part was the cache which didn't got stored until you fixed all the issues. That's already (1:30min).
The other one, I would guess, is that Python 3.11 isn't installed natively and thus probably not optimized. Just compare the Setup Python steps:

• 3.10 run
• 3.11 run

[DanielNoord]

@cdce8p DanielNoord#20 shows significant differences in test times though. numpy brain tests seem to struggle but other test also run twice as long. That shouldn't be due to caching nor installing python right?

[cdce8p]

@cdce8p DanielNoord#20 shows significant differences in test times though. numpy brain tests seem to struggle but other test also run twice as long. That shouldn't be due to caching nor installing python right?

It could be 🤷🏻‍♂️ Caching not so much, but optimizations during install are a possibility. Especially if that time difference doesn't happen locally. I only noticed the different log output.