gh-128302: Fix bugs in xml.dom.xmlbuilder (GH-128284)
* Allow DOMParser.parse() to correctly handle DOMInputSource instances
that only have a systemId attribute set.
* Fix DOMEntityResolver.resolveEntity(), which was broken by the
Python 3.0 transition.
* Add Lib/test/test_xml_dom_xmlbuilder.py with few tests.
(cherry picked from commit 6ea04da270)
Co-authored-by: Stephen Morton <git@tungol.org>
It now supports docstrings with single quotes, escape sequences,
raw string literals, and other Python syntax.
(cherry picked from commit 474e419792)
Co-authored-by: Srinivas Reddy Thatiparthy (తాటిపర్తి శ్రీనివాస్ రెడ్డి) <thatiparthysreenivas@gmail.com>
Co-authored-by: Éric <merwok@netwok.org>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-98188: Fix EmailMessage.get_payload to decode data when CTE value has extra text (GH-127547)
Up to this point message handling has been very strict with regards to content encoding values: mixed case was accepted, but trailing blanks or other text would cause decoding failure, even if the first token was a valid encoding. By Postel's Rule we should go ahead and decode as long as we can recognize that first token. We have not thought of any security or backward compatibility concerns with this fix.
This fix does introduce a new technique/pattern to the Message code: we look to see if the header has a 'cte' attribute, and if so we use that. This effectively promotes the header API exposed by HeaderRegistry to an API that any header parser "should" support. This seems like a reasonable thing to do. It is not, however, a requirement, as the string value of the header is still used if there is no cte attribute.
The full fix (ignore any trailing blanks or blank-separated trailing text) applies only to the non-compat32 API. compat32 is only fixed to the extent that it now ignores trailing spaces. Note that the HeaderRegistry parsing still records a HeaderDefect if there is extra text.
(cherry picked from commit a62ba52f14)
Co-authored-by: RanKKI <hliu86.me@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
gh-123085: _compile_importlib: Avoid copying sources before compilation (GH-124131)
(cherry picked from commit 42c8b0556c)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
gh-123085: Fix issue in inferred caller when resources package has no source.
From importlib_resources 6.4.3 (python/importlib_resourcesGH-314).
(cherry picked from commit a53812df12)
gh-127903: Fix a crash on debug builds when calling `Objects/unicodeobject::_copy_characters`` (GH-127876)
(cherry picked from commit 46cb6340d7)
Co-authored-by: Alexander Shadchin <shadchin@yandex-team.com>
Union now uses the instance checks against its parameters instead of
the subclass checks.
(cherry picked from commit b2ac70a62a)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-127586: multiprocessing.Pool does not properly restore blocked signals (try 2) (GH-128011)
Correct pthread_sigmask in resource_tracker to restore old signals
Using SIG_UNBLOCK to remove blocked "ignored signals" may accidentally
cause side effects if the calling parent already had said signals
blocked to begin with and did not intend to unblock them when
creating a pool. Use SIG_SETMASK instead with the previous mask of
blocked signals to restore the original blocked set.
(cherry picked from commit aeb9b65aa2)
Co-authored-by: Stephen Hansen <stephen.paul.hansen@gmail.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
gh-127537: Add __class_getitem__ to the python implementation of functools.partial (#127537)
(cherry picked from commit 401bba6b58)
Co-authored-by: CF Bolz-Tereick <cfbolz@gmx.de>
gh-127847: Fix position in the special-cased zipfile seek (GH-127856)
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(cherry picked from commit 7ed6c5c696)
Co-authored-by: Dima Ryazanov <dima@bucket.xxx>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
gh-128049: Fix type confusion bug with the return value of a custom ExceptionGroup split function (GH-128079)
(cherry picked from commit 3879ca0100)
Co-authored-by: Nico-Posada <102486290+Nico-Posada@users.noreply.github.com>
gh-126742: Avoid checking for library filename in test_ctypes (GH-128034)
Avoid checking for library filename in `dlerror()` error messages of test_ctypes.
(cherry picked from commit 335e24fb0a)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
- Add a helper to set an error from locale-encoded `char*`
- Use the helper for gdbm & dlerror messages
Co-authored-by: Victor Stinner <vstinner@python.org>
For dlsym(), a return value of NULL does not necessarily indicate
an error [1].
Therefore, to avoid using stale (or NULL) dlerror() values, we must:
1. clear the previous error state by calling dlerror()
2. call dlsym()
3. call dlerror()
If the return value of dlerror() is not NULL, an error occured.
In ctypes we choose to treat a NULL return value from dlsym()
as a "not found" error. This is the same as the fallback
message we use on Windows, Cygwin or when getting/formatting
the error reason fails.
[1]: https://man7.org/linux/man-pages/man3/dlsym.3.html
Signed-off-by: Georgios Alexopoulos <grgalex42@gmail.com>
Signed-off-by: Georgios Alexopoulos <grgalex@ba.uoa.gr>
Co-authored-by: George Alexopoulos <giorgosalexo0@gmail.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-127906: Skip limited C API test_cext tests if Py_TRACE_REFS
Skip limited C API tests in test_cext and test_cppext if Python is
configured with --with-trace-refs (if the Py_TRACE_REFS macro is
defined).
This backports the *test* from GH-126938, with changed limit and exception class.
Co-authored-by: Melissa0x1f992 <70096546+Melissa0x1f992@users.noreply.github.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry-picked from d51c1444e3)
gh-127906: Test the limited C API in test_cppext (GH-127916)
(cherry picked from commit d05a4e6a0d)
Co-authored-by: Victor Stinner <vstinner@python.org>
* `end_offset` is ignored in subclasses of SyntaxError
* 📜🤖 Added by blurb_it.
* Add test
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Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
gh-127655: Ensure `_SelectorSocketTransport.writelines` pauses the protocol if needed (GH-127656)
Ensure `_SelectorSocketTransport.writelines` pauses the protocol if it reaches the high water mark as needed.
(cherry picked from commit e991ac8f20)
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
gh-122431: Disallow negative values in `readline.append_history_file` (GH-122469)
(cherry picked from commit 208b0fb645)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-126876: Fix socket internal_select() for large timeout (GH-126968)
If the timeout is larger than INT_MAX, replace it with INT_MAX, in
the poll() code path.
Add an unit test.
(cherry picked from commit b3687ad454)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.13] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (GH-127216)
Note, that transformed expression is not an equivalent for original one (1/exp(-x) != exp(x) in general for floating-point numbers). Though, the difference seems to be ~1ULP for good libm implementations.
It's more interesting why division was used from beginning. Closest algorithm I've found (no error checks, of course;)) - it's Algorithm 190 from ACM: https://dl.acm.org/doi/10.1145/366663.366679. It uses subtraction in the exponent.
(cherry picked from commit f7bb658124)
(cherry picked from commit f41d8d89e7)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-126699: allow AsyncIterator to be used as a base for Protocols (GH-126702)
(cherry picked from commit feb3e0b19c)
Co-authored-by: Stephen Morton <github@tungol.org>
Threads are gone after fork, so clear the queues too. Otherwise the
child process (here created via multiprocessing.Process) crashes on
interpreter exit.
(cherry picked from commit 1848ce61f3)
Co-authored-by: Andrei Bodrov <Drino@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-127208: Reject null character in _imp.create_dynamic() (#127400)
_imp.create_dynamic() now rejects embedded null characters in the
path and in the module name.
Backport also the _PyUnicode_AsUTF8NoNUL() function.
(cherry picked from commit b14fdadc6c)
gh-127258: Fix asyncio test_staggered_race_with_eager_tasks() (GH-127358)
Replace the sleep(2) with a task which is blocked forever.
(cherry picked from commit bfabf96b50)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-127190: Fix local_setattro() error handling (GH-127366)
Don't make the assumption that the 'name' argument is a string. Use
repr() to format the 'name' argument instead.
(cherry picked from commit 20657fbdb1)
Co-authored-by: Victor Stinner <vstinner@python.org>
Since MultiByteToWideChar()/WideCharToMultiByte() is not reversible if
the data contains invalid UTF-8 sequences, use binary search to
calculate the number of written bytes from the number of written
characters.
Also fix writing incomplete UTF-8 sequences.
Also fix handling of memory allocation failures.
(cherry picked from commit 3cf83d91a5)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-127182: Fix `io.StringIO.__setstate__` crash when `None` is the first value (GH-127219)
(cherry picked from commit a2ee899682)
Co-authored-by: sobolevn <mail@sobolevn.me>
Co-authored-by: Victor Stinner <vstinner@python.org>
If Python fails to start newly created thread
due to failure of underlying PyThread_start_new_thread() call,
its state should be removed from interpreter' thread states list
to avoid its double cleanup.
(cherry picked from commit ca3ea9ad05)
Co-authored-by: Radislav Chugunov <52372310+chgnrdv@users.noreply.github.com>
* Name without a PATHEXT extension is only searched if the mode does not
include X_OK.
* Support multi-component PATHEXT extensions (e.g. ".foo.bar").
* Support files without extensions in PATHEXT contains dot-only extension
(".", "..", etc).
* Support PATHEXT extensions that end with a dot (e.g. ".foo.").
(cherry picked from commit 8899e85de1)
