* Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead
* Do not track most untrackable tuples during creation. This prevents large numbers of small tuples causing execessive GCs.
* Support non-UTF-8 shebang and comments if non-UTF-8 encoding is specified.
* Detect decoding error for non-UTF-8 encoding.
* Detect null bytes in source code.
Fix memory leak in sub-interpreter creation caused by overwriting of the previously used `_malloced` field. Now the pointer is stored in the first word of the memory block to avoid it being overwritten accidentally.
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
In Python 3.13 (but not 3.12 or 3.14), pathlib classes are defined in
`pathlib._local` rather than `pathlib`. In hindsight this was a mistake,
but it was difficult to predict how the abstract/local split would pan out.
In this patch we re-introduce `pathlib._local` as a stub module that
re-exports the classes from `pathlib`. This allows path objects pickled in
3.13 to be unpicked in 3.14+
This fixes a regression introduced by GH-136004, in which finalization would hang while executing atexit handlers if the system was out of memory.
---------
Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Revert GH-131993.
Fix swallowing some syntax warnings in different modules if they accidentally
have the same message and are emitted from the same line.
This amends 4e7e2dd043 to catch errors
that `os.getlogin` can raise as specified by POSIX and Linux/glibc [1].
[1]: https://man7.org/linux/man-pages/man3/getlogin.3.html#ERRORS
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Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Restore `JoinablePath.[is_]relative_to()`, which were deleted in
ef63cca494. These methods are too useful to
forgo. Restore old tests, and add new tests covering path classes with
non-overridden `__eq__()` and `__hash__()`.
Slightly simplify `PurePath.relative_to()` while we're in the area.
No change to public APIs, because the pathlib ABCs are still private.
Fix incorrect sharing of current task with the forked child process by clearing thread state's current task and current loop in `PyOS_AfterFork_Child`.
* Support non-UTF-8 shebang and comments if non-UTF-8 encoding is specified.
* Detect decoding error in comments for UTF-8 encoding.
* Include the decoding error position for default encoding in SyntaxError.
