Handle EINTR retry in os.write() (PEP 475) by youknowone · Pull Request #7482 · RustPython/RustPython

Add EINTR retry loop to os.write(), matching the existing
pattern in os.read() and os.readinto(). Remove the
expectedFailure marker from test_write in _test_eintr.py.

Add fast paths for dict and dict_keys types in
extract_elements_with, matching _list_extend() in CPython
Objects/listobject.c. Each branch takes an atomic snapshot
under a single read lock, preventing race conditions from
concurrent dict mutation without the GIL.

Remove expectedFailure from test_thread_safety.

* Handle EINTR retry in os.write() (PEP 475)

Add EINTR retry loop to os.write(), matching the existing
pattern in os.read() and os.readinto(). Remove the
expectedFailure marker from test_write in _test_eintr.py.

* Add atomic snapshot for dict/dict_keys in extract_elements

Add fast paths for dict and dict_keys types in
extract_elements_with, matching _list_extend() in CPython
Objects/listobject.c. Each branch takes an atomic snapshot
under a single read lock, preventing race conditions from
concurrent dict mutation without the GIL.

Remove expectedFailure from test_thread_safety.