* Clear frame locals and stack on generator close
Add Frame::clear_locals_and_stack() to release references held by
closed generators/coroutines, matching _PyFrame_ClearLocals behavior.
Call it from Coro::close() after marking the coroutine as closed.
Update test_generators.py expectedFailure markers accordingly.
* Add dir_fd support for rmdir, remove/unlink, scandir
- rmdir: use unlinkat(fd, path, AT_REMOVEDIR) when dir_fd given
- remove/unlink: use unlinkat(fd, path, 0) when dir_fd given
- scandir: accept fd via fdopendir, add ScandirIteratorFd
- listdir: rewrite fd path to use raw readdir instead of nix::dir::Dir
- DirEntry: add d_type and dir_fd fields for fd-based scandir
- Update supports_fd/supports_dir_fd entries accordingly
* cells_free
* Implement Windows SemLock in _multiprocessing module
Add SemLock class using Windows semaphore APIs (CreateSemaphoreW,
WaitForSingleObjectEx, ReleaseSemaphore) so test_multiprocessing
suites are no longer skipped with "lacks a functioning sem_open".
Also add sem_unlink as no-op and flags dict for Windows.
* Fix _multiprocessing recv to return bytes and improve SemLock reliability
- recv() now returns bytes instead of int (matching CPython)
- Remove spurious GetLastError() check after CreateSemaphoreW
- Add signal checking during blocking SemLock acquire
* Include winerror in OSError.__reduce__ on Windows
* Remove expectedFailure for tests now passing with Windows SemLock
* Fix OSError.__reduce__ to preserve winerror when filename is None
When filename is None, __reduce__ was reconstructing a 2-element
(errno, msg) tuple, dropping the winerror at position 3 in the
original args. Use the original args tuple instead, matching CPython.
* Validate maxvalue > 0 in SemLock and document winerror __reduce__ divergence
* Reject embedded null characters in mmap tagname and _winapi file mapping names
* cold block reordering and jump normalization
Add mark_cold, push_cold_blocks_to_end, and normalize_jumps
passes to the codegen CFG pipeline. Use JumpNoInterrupt for
exception handler exit paths in try-except-finally compilation.
* mark test_peepholer
Use Win32 CreateFileMappingW + MapViewOfFile when tagname is
provided, enabling inter-process shared memory for
multiprocessing.heap.Arena. Anonymous mmaps without tagname
still use memmap2.
Remove expectedFailure from test_tagname in test_mmap.py.
- Add sys.call_tracing as func(*args) dispatch
- Add sys._current_exceptions with per-thread exception tracking
via thread_exceptions registry synced on push/pop/set_exception
- Fix f_back to use previous_frame pointer and cross-thread lookup
- Add module="sys" to float_info struct sequence
- Fix sys.exit to unpack tuple args
- Set default stdio_errors to surrogateescape
- Remove noisy __del__ warning in object core
- Add __pointer_type__ getter/setter and StgInfo cache
- Add kept_refs (HashMap-keyed) for c_char_p lifetime
- Simplify ensure_z_null_terminated to 2-value return
- Add RawMemoryBuffer for zero-copy memoryview_at_addr
- Add bitfield support in PyCField with validation
- Add CArgObject offset handling in extract_ptr_from_arg
- Add deprecation warning for _pack_ without _layout_
- Fix comparison TypeError message format
- Fix unsupported binop error message format
- Mark failing CI tests as expectedFailure/skip
- excepthook: call traceback._print_exception_bltin instead of
traceback.print_exception to match PyErr_Display behavior
- run_string: register compiled code in linecache._interactive_cache
so traceback can display source lines and caret indicators
- Remove test_sys_tracebacklimit expectedFailure
Add fast path for exact tuple/list (direct length check without
iterator). General path now iterates only size+1 elements,
fixing hang on infinite sequences like __getitem__ without
raising IndexError.
Error messages now include "got N" for tuple, list, and dict.
Remove 7 expectedFailure/skip markers from test_unpack.
Remove __hello_only__.py source file and its symlink. Register
__hello_only__ as a frozen module alias reusing __hello__ bytecode,
matching the behavior where origname is None (no source file).
Jeong, YunWon