* Refresh canonical importlib and preserve native import callback
Cache the original builtin __import__ callback so CPython 3.15 importlib's
hierarchical locking uses the existing native parent-initialization path.
Refresh the complete canonical importlib and related test/helper families
from CPython d220409a13b77de7a6c30abe16ea90db01528edc through update_lib.
Preserve both nondecorator importlib guards in the updater. Add explicit
hash-pinned removal of reviewed obsolete canonical files, with full
preflight, dry-run, idempotence and refusal tests. Preserve empty fixtures.
Assisted-by: OpenAI Codex:model version unavailable
* Complete canonical inspect and types closure for importlib metadata
Refresh whole canonical inspect/types production and related test families
through update_lib after hosted CI exposed stale __cached__ consumers.
Add coroutine and async-generator state getters, with closed-state priority
for reentrant frame-local finalizers, and expose the existing frame-locals
proxy type with its CPython class documentation.
Preserve the optional _datetime and unittest import blocks through a narrow
migration adapter. Retain canonical assertions and existing guards; record
the missing LazyImportType expectation before adding a conditional expected
failure, and capability-skip only the two absent-_testcapi CLI fixtures.
Assisted-by: OpenAI Codex:model version unavailable
* Reject canonical removal junctions and read UTF-8 manifests
Reject junctions alongside symlinks in the existing path-component preflight and revalidation. Decode removal manifests explicitly as UTF-8. Add regressions for whole-batch refusal, revalidation, and Unicode dry-run/apply/idempotence.
Assisted-by: OpenAI Codex:model version unavailable
* Fix test_import: import machinery and errors
- Emit IMPORT_FROM instead of LOAD_ATTR for `import a.b.c as m`
- Add "partially initialized module" error for circular imports
- Add "cannot access submodule" error for initializing submodules
- Implement script shadowing detection with "consider renaming" hint
- Detect user scripts shadowing stdlib/third-party modules
- Compute original sys.path[0] from sys.argv[0]
- Check sys.stdlib_module_names for stdlib detection
- Respect safe_path setting
- Implement _imp._fix_co_filename for code source_path rewriting
- Add data parameter to _imp.get_frozen_object with marshal deser
- Fix import_from: check __spec__.has_location before using origin
- Set ImportError.path attribute on import failures
- Fix import_star error messages for non-str __all__/__dict__ items
- Always call builtins.__import__ in import_inner
* Propagate __bool__ errors from fromlist in import
Previously, try_to_bool errors were silently swallowed via .ok(),
causing fromlist with broken __bool__ to default to false.
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