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Author SHA256 Message Date
aa61ff92f2 Update to 3.15.0~a3
Security
    - gh-142145: Remove quadratic behavior in xml.minidom node ID
      cache clearing.
    - gh-42400: Fix buffer overflow in _Py_wrealpath() for paths
      exceeding MAXPATHLEN bytes by using dynamic memory
      allocation instead of fixed-size buffer. Patch by Shamil
      Abdulaev.
    - gh-119451: Fix a potential memory denial of service in the
      http.client module. When connecting to a malicious server,
      it could cause an arbitrary amount of memory to be
      allocated. This could have led to symptoms including
      a MemoryError, swapping, out of memory (OOM) killed
      processes or containers, or even system crashes
      (CVE-2025-13836, bsc#1254400).
    - gh-119342: Fix a potential memory denial of service in the
      plistlib module. When reading a Plist file received from
      untrusted source, it could cause an arbitrary amount of
      memory to be allocated. This could have led to symptoms
      including a MemoryError, swapping, out of memory (OOM)
      killed processes or containers, or even system crashes
      (CVE-2025-13837, bsc#1254401).
Library
    - gh-142754: Add the ownerDocument attribute to
      xml.dom.minidom elements and attributes created by directly
      instantiating the Element or Attr class. Note that this way
      of creating nodes is not supported; creator functions like
      xml.dom.Document.documentElement() should be used instead.
    - gh-142594: Fix crash in TextIOWrapper.close() when the
      underlying buffer’s closed property calls detach().
    - gh-76007: Deprecate __version__ from ctypes. Patch by Hugo
      van Kemenade.
    - gh-76007: Deprecate __version__ from wsgiref.simple_server.
      Patch by Hugo van Kemenade.
    - gh-142651: unittest.mock: fix a thread safety issue where
      Mock.call_count may return inaccurate values when the mock
      is called concurrently from multiple threads.
    - gh-76007: Deprecate __version__ from http.server. Patch by
      Hugo van Kemenade.
    - gh-138122: Add --subprocesses flag to profiling.sampling
      CLI to automatically profile subprocesses spawned by the
      target. When enabled, the profiler monitors for new Python
      subprocesses and profiles each one separately, writing
      results to individual output files. This is useful for
      profiling applications that use multiprocessing,
      ProcessPoolExecutor, or other subprocess-based parallelism.
      Patch by Pablo Galindo.
    - gh-142595: Added type check during initialization of the
      decimal module to prevent a crash in case of broken stdlib.
      Patch by Sergey B Kirpichev.
    - gh-142556: Fix crash when a task gets re-registered during
      finalization in asyncio. Patch by Kumar Aditya.
    - gh-138122: Add --mode=exception to the sampling profiler to
      capture samples only from threads with an active exception,
      useful for analyzing exception handling overhead. Patch by
      Pablo Galindo.
    - gh-142539: traceback: Fix location of carets in
      SyntaxErrors when the source contains wide characters.
    - gh-123241: Avoid reference count operations in garbage
      collection of ctypes objects.
    - gh-142451: hmac: correctly copy HMAC attributes for objects
      copied through HMAC.copy(). Patch by Bénédikt Tran.
    - gh-138122: The profiling.sampling flamegraph profiler now
      supports inverted flamegraph view that aggregates all leaf
      nodes. In a standard flamegraph, if a hot function is
      called from multiple locations, it appears multiple times
      as separate leaf nodes. In the inverted flamegraph, all
      occurrences of the same leaf function are merged into
      a single aggregated node at the root, showing the total
      hotness of that function in one place. The children of each
      aggregated node represent its callers, making it easier to
      identify which functions consume the most CPU time and
      where they are called from.
    - gh-112527: The help text for required options in argparse
      no longer extended with “ (default: None)”.
    - gh-142438: Fixed a possible leaked GIL in
      _PySSL_keylog_callback.
    - gh-138122: Add bytecode-level instruction profiling to the
      sampling profiler via the new --opcodes flag. When enabled,
      the profiler captures which bytecode opcode is executing at
      each sample, including Python 3.11+ adaptive
      specializations, and visualizes this data in the heatmap,
      flamegraph, gecko, and live output formats. Patch by Pablo
      Galindo
    - gh-142389: Add backtick markup support in argparse
      description and epilog text to highlight inline code when
      color output is enabled.
    - gh-142346: Fix usage formatting for mutually exclusive
      groups in argparse when they are preceded by positional
      arguments or followed or intermixed with other optional
      arguments.
    - gh-142374: Fix cumulative percentage calculation for
      recursive functions in the new sampling profiler. When
      profiling recursive functions, cumulative statistics
      (cumul%, cumtime) could exceed 100% because each recursive
      frame in a stack was counted separately. For example,
      a function recursing 500 times in every sample would show
      50000% cumulative presence. The fix deduplicates locations
      within each sample so cumulative stats correctly represent
      “percentage of samples where this function was on the
      stack”. Patch by Pablo Galindo.
    - gh-142315: Pdb can now run scripts from anonymous pipes
      used in process substitution. Patch by Bartosz Sławecki.
    - gh-64532: Subparser help now includes required optional
      arguments from the parent parser in the usage, making it
      clearer what arguments are needed to run a subcommand.
      Patch by Savannah Ostrowski.
    - gh-142207: Fix: profiling.sampling may cause assertion
      !(has_gil && gil_requested)
    - gh-142332: Fix usage formatting for positional arguments in
      mutually exclusive groups in argparse. in argparse.
    - gh-142282: Fix winreg.QueryValueEx() to not accidentally
      read garbage buffer under race condition.
    - gh-142318: Fix typing 'q' at the help of the interactive
      tachyon profiler exiting the profiler.
    - gh-75949: Fix argparse to preserve | separators in mutually
      exclusive groups when the usage line wraps due to length.
    - gh-142267: Improve argparse performance by caching the
      formatter used for argument validation.
    - gh-139862: Remove color parameter from
      argparse.HelpFormatter constructor. Color is controlled by
      ArgumentParser.
    - gh-68552: MisplacedEnvelopeHeaderDefect and Missing header
      name defects are now correctly passed to the handle_defect
      method of policy in FeedParser.
    - gh-142206: The resource tracker in the multiprocessing
      module can now understand messages from older versions of
      itself. This avoids issues with upgrading Python while it
      is running. (Note that such ‘in-place’ upgrades are not
      tested.)
    - gh-142214: Fix two regressions in dataclasses in Python
      3.14.1 related to annotations. An exception is no longer
      raised if slots=True is used and the __init__ method does
      not have an __annotate__ attribute (likely because
      init=False was used). An exception is no longer raised if
      annotations are requested on the __init__ method and one of
      the fields is not present in the class annotations. This
      can occur in certain dynamic scenarios. Patch by Jelle
      Zijlstra.
    - gh-142203: Remove the debug_override parameter from
      importlib.util.cache_from_source() which has been
      deprecated since Python 3.5.
    - gh-138122: The _remote_debugging module now implements
      frame caching in the RemoteUnwinder class to reduce memory
      reads when profiling remote processes. When
      cache_frames=True, unchanged portions of the call stack are
      reused from previous samples, significantly improving
      profiling performance for deep call stacks.
    - gh-116738: Fix cmath data race when initializing
      trigonometric tables with subinterpreters.
    - gh-141982: Allow pdb to set breakpoints on async functions
      with function names.
    - gh-74389: When the stdin being used by a subprocess.Popen
      instance is closed, this is now ignored in
      subprocess.Popen.communicate() instead of leaving the class
      in an inconsistent state.
    - gh-87512: Fix subprocess.Popen.communicate() timeout
      handling on Windows when writing large input. Previously,
      the timeout was ignored during stdin writing, causing the
      method to block indefinitely if the child process did not
      consume input quickly. The stdin write is now performed in
      a background thread, allowing the timeout to be properly
      enforced.
    - gh-141939: Add color to all interpolated values in argparse
      help, like %(default)s or %(choices)s. Patch by Alex
      Prengère.
    - gh-141473: When subprocess.Popen.communicate() was called
      with input and a timeout and is called for a second time
      after a TimeoutExpired exception before the process has
      died, it should no longer hang.
    - gh-141999: Correctly allow KeyboardInterrupt to stop the
      process when using profiling.sampling.
    - gh-142006: Fix a bug in the email.policy.default folding
      algorithm which incorrectly resulted in a doubled newline
      when a line ending at exactly max_line_length was followed
      by an unfoldable token.
    - gh-141968: Remove data copy from re compilation of regexes
      with large charsets by using bytearray.take_bytes().
    - gh-141968: Remove data copy from encodings.idna encode()
      and encode() by using bytearray.take_bytes().
    - gh-141968: Remove data copy from codecs punycode encoding
      by using bytearray.take_bytes().
    - gh-141968: Remove data copy from
      wave.Wave_read.readframes() and
      wave.Wave_write.writeframes() by using
      bytearray.take_bytes().
    - gh-141968: Remove a data copy from base64.b32decode() and
      base64.b32encode() by using bytearray.take_bytes().
    - gh-59000: Fix pdb breakpoint resolution for class methods
      when the module defining the class is not imported.
    - gh-116738: Fix thread safety issue with re scanner objects
      in free-threaded builds.
    - gh-138122: The profiling.sampling flamegraph profiler now
      displays thread status statistics showing the percentage of
      time threads spend holding the GIL, running without the
      GIL, waiting for the GIL, and performing garbage
      collection. These statistics help identify GIL contention
      and thread behavior patterns. When filtering by thread, the
      display shows per-thread metrics.
    - gh-141781: Fixed an issue where pdb.line_prefix assignment
      was ignored if assigned after the module was imported.
    - gh-141863: Update Streams to use bytearray.take_bytes() for
      a over 10% performance improvement on pyperformance
      asyncio_tcp benchmark.
    - gh-141817: Add socket.IPV6_HDRINCL constant.
    - gh-105836: Fix asyncio.run_coroutine_threadsafe() leaving
      underlying cancelled asyncio task running.
    - gh-141570: Support file-like object raising OSError from
      fileno() in color detection (_colorize.can_colorize()).
      This can occur when sys.stdout is redirected.
    - gh-141679: Add colour to defaults in argparse help. Patch
      by Hugo van Kemenade.
    - gh-141686: Break reference cycles created by each call to
      json.dump() or json.JSONEncoder.iterencode().
    - gh-141659: Fix bad file descriptor errors from
      _posixsubprocess on AIX.
    - gh-141645: Add a new --live mode to the tachyon profiler in
      profiling.sampling module. This mode consist of a live TUI
      that displays real-time profiling statistics as the target
      application runs, similar to top. Patch by Pablo Galindo
    - gh-141615: Check stdin instead of stdout for use_rawinput
      in pdb.
    - gh-69113: Fix doctest to correctly report line numbers for
      doctests in __test__ dictionary when formatted as
      triple-quoted strings by finding unique lines in the string
      and matching them in the source file.
    - gh-141600: Fix musl version detection on Void Linux.
    - gh-48752: Add readline.get_pre_input_hook() function to
      retrieve the current pre-input hook. This allows
      applications to save and restore the hook without
      overwriting user settings. Patch by Sanyam Khurana.
    - gh-141565: Add async-aware profiling to the Tachyon
      sampling profiler. The profiler now reconstructs and
      displays async task hierarchies in flamegraphs, making the
      output more actionable for users. Patch by Savannah
      Ostrowski and Pablo Galindo Salgado.
    - gh-60107: Remove a copy from io.RawIOBase.read(). If the
      underlying I/O class keeps a reference to the mutable
      memory, raise a BufferError.
    - gh-116738: Make csv module thread-safe on the free threaded
      build.
    - gh-140911: collections: Ensure that the methods
      UserString.rindex() and UserString.index() accept
      collections.UserString instances as the sub argument.
    - gh-140875: Fix handling of unclosed character references
      (named and numerical) followed by the end of file in
      html.parser.HTMLParser with convert_charrefs=False.
    - gh-140677: Add heatmap visualization mode to the Tachyon
      sampling profiler. The new --heatmap output format provides
      a line-by-line view showing execution intensity with
      color-coded samples, inline statistics, and interactive
      call graph navigation between callers and callees.
    - gh-139946: Distinguish stdout and stderr when colorizing
      output in argparse module.
    - gh-76007: pydoc: Fix DeprecationWarning being raised when
      generating doc for stdlib modules.
    - gh-139686: Make importlib.reload no-op for lazy modules.
    - gh-138697: Fix inferring dest from a single-dash long
      option in argparse. If a short option and a single-dash
      long option are passed to add_argument(), dest is now
      inferred from the single-dash long option.
    - gh-138525: Add support for single-dash long options and
      alternate prefix characters in
      argparse.BooleanOptionalAction.
    - gh-79986: Add parsing for References and In-Reply-To
      headers to the email library that parses the header content
      as lists of message id tokens. This prevents them from
      being folded incorrectly.
    - gh-135559: Flag: a dir() on a Flag enumeration now shows
      non-canonical members. (i.e. aliases).
    - gh-134453: Fixed subprocess.Popen.communicate() input=
      handling of memoryview instances that were non-byte shaped
      on POSIX platforms. Those are now properly cast to a byte
      shaped view instead of truncating the input. Windows
      platforms did not have this bug.
    - gh-127930: Add __all__ to tkinter.simpledialog.
    - gh-115952: Fix a potential memory denial of service in the
      pickle module. When reading a pickled data received from
      untrusted source, it could cause an arbitrary amount of
      memory to be allocated, even if the code that is allowed to
      execute is restricted by overriding the find_class()
      method. This could have led to symptoms including
      a MemoryError, swapping, out of memory (OOM) killed
      processes or containers, or even system crashes. bpo-40350:
      Fix support for namespace packages in modulefinder.
Documentation
    - gh-141994: xml.sax.handler: Make Documentation of
      xml.sax.handler.feature_external_ges warn of opening up to
      external entity attacks. Patch by Sebastian Pipping.
Core and Builtins
    - gh-134584: Eliminate redundant refcounting from
      _STORE_ATTR_INSTANCE_VALUE.
    - gh-142718: JIT: Fix segfault caused by not flushing the
      stack to memory at side exits.
    - gh-142737: Tracebacks will be displayed in fallback mode
      even if io.open() is lost. Previously, this would crash the
      interpreter. Patch by Bartosz Sławecki.
    - gh-116738: Make the attributes in bz2 thread-safe on the
      free threaded build.
    - gh-134584: Eliminate redundant refcounting from
      _CALL_LIST_APPEND.
    - gh-142554: Fix a crash in divmod() when
      _pylong.int_divmod() does not return a tuple of length two
      exactly. Patch by Bénédikt Tran.
    - gh-142531: Fix a free-threaded GC performance regression.
      If there are many untracked tuples, the GC will run too
      often, resulting in poor performance. The fix is to include
      untracked tuples in the “long lived” object count. The
      number of frozen objects is also now included since the
      free-threaded GC must scan those too.
    - gh-142402: Fix reference counting when adjacent literal
      parts are merged while constructing
      string.templatelib.Template, preventing the displaced
      string object from leaking.
    - gh-116738: Make the attributes in zlib thread-safe on the
      free threaded build.
    - gh-142343: Fix SIGILL crash on m68k due to incorrect
      assembly constraint.
    - gh-142236: Improve the “Perhaps you forgot a comma?” syntax
      error for multi-line string concatenations to point to the
      last string instead of the first, making it easier to
      locate where the comma is missing. Patch by Pablo Galindo.
    - gh-142236: Fix incorrect keyword suggestions for syntax
      errors in traceback. The keyword typo suggestion mechanism
      would incorrectly suggest replacements when the extracted
      source code was incomplete rather than containing an actual
      typo. Patch by Pablo Galindo.
    - gh-142305: Decrease the size of the generated stencils and
      the runtime JIT code. Patch by Diego Russo.
    - gh-135379: Implement a limited form of register allocation
      known as “top of stack caching” in the JIT. It works by
      keeping 0-3 of the top items in the stack in registers. The
      code generator generates multiple versions of those uops
      that do not escape and are relatively small. During JIT
      compilation, the copy that produces the least memory
      traffic is selected, spilling or reloading values when
      needed.
    - gh-142276: Fix missing type watcher when promoting
      attribute loads to constants in the JIT. Patch by Ken Jin.
      Reproducer by Yuancheng Jiang.
    - gh-142218: Fix crash when inserting into a split table
      dictionary with a non str key that matches an existing key.
    - gh-141976: Check against abstract stack overflow in the JIT
      optimizer.
    - gh-97850: Remove all *.load_module() usage and definitions
      from the import system and importlib. The method has been
      deprecated in favor of importlib.abc.Loader.exec_module()
      since Python 3.4.
    - gh-142048: Fix quadratically increasing garbage collection
      delays in free-threaded build.
    - gh-65961: Stop setting __cached__ on modules.
    - gh-141770: Annotate anonymous mmap usage only when
      supported by the Linux kernel and if -X dev is used or
      Python is built in debug mode. Patch by Donghee Na.
    - gh-142029: Raise ModuleNotFoundError instead of crashing
      when a nonexistent module is used as a name in
      _imp.create_builtin().
    - gh-142029: Raise ValueError instead of crashing when empty
      string is used as a name in _imp.create_builtin().
    - gh-141976: Protect against specialization failures in the
      tracing JIT compiler for performance reasons.
    - gh-141861: Fix invalid memory read in the ENTER_EXECUTOR
      instruction.
    - gh-141930: When importing a module, use Python’s regular
      file object to ensure that writes to .pyc files are
      complete or an appropriate error is raised.
    - gh-138122: Add incomplete sample detection to prevent
      corrupted profiling data. Each thread state now contains an
      embedded base frame (sentinel at the bottom of the frame
      stack) with owner type FRAME_OWNED_BY_INTERPRETER. The
      profiler validates that stack unwinding terminates at this
      sentinel frame. Samples that fail to reach the base frame
      (due to race conditions, memory corruption, or other
      errors) are now rejected rather than being included as
      spurious data.
    - gh-120158: Fix inconsistent state when enabling or
      disabling monitoring events too many times.
    - gh-140638: Expose a "candidates" stat in gc.get_stats() and
      gc.callbacks.
    - gh-141780: Fix Py_mod_gil with API added in PEP 793:
      PyModule_FromSlotsAndSpec() and PyModExport hooks
    - gh-141732: Ensure the __repr__() for ExceptionGroup and
      BaseExceptionGroup does not change when the exception
      sequence that was original passed in to its constructor is
      subsequently mutated.
    - gh-140638: Expose a "duration" stat in gc.get_stats() and
      gc.callbacks.
    - gh-139653: Only raise a RecursionError or trigger a fatal
      error if the stack pointer is both below the limit pointer
      and above the stack base. If outside of these bounds assume
      that it is OK. This prevents false positives when
      user-space threads swap stacks.
    - gh-41779: Allowed defining the __dict__ and __weakref__
      __slots__ for any class.
    - gh-139103: Improve multithreaded scaling of dataclasses on
      the free-threaded build.
    - gh-141589: Change backoff counter to use prime numbers
      instead of powers of 2. Use only 3 bits for counter and 13
      bits for value. This allows to support values up to 8191.
      Patch by Mikhail Efimov.
    - gh-137007: Fix a bug during JIT compilation failure which
      caused garbage collection debug assertions to fail.
    - gh-132657: For the free-threaded build, avoid locking the
      set object for the __contains__ method.
    - gh-134584: Eliminate redundant refcounting from
      _CALL_STR_1.
    - gh-134584: Eliminate redundant refcounting from
      _CALL_BUILTIN_O.
    - gh-134584: Eliminate redundant refcounting from
      _CALL_TUPLE_1. Patch by Noam Cohen
C API
    - gh-142589: Fix
      PyUnstable_Object_IsUniqueReferencedTemporary() handling of
      tagged ints on the interpreter stack.
    - gh-142571: PyUnstable_CopyPerfMapFile() now checks that
      opening the file succeeded before flushing.
    - gh-142225: Fixed the PyABIInfo_VAR macro.
    - gh-141049: _PyObject_CallMethodId(), _PyObject_GetAttrId()
      and _PyUnicode_FromId() are deprecated since 3.15 and will
      be removed in 3.20. Instead, use
      PyUnicode_InternFromString() and cache the result in the
      module state, then call PyObject_CallMethod() or
      PyObject_GetAttr(). Patch by Victor Stinner.
    - gh-142163: Fix the HAVE_THREAD_LOCAL macro being defined
      without the Py_BUILD_CORE macro set after including
      Python.h.
    - gh-137422: Fix free threading race condition in
      PyImport_AddModuleRef(). It was previously possible for two
      calls to the function return two different objects, only
      one of which was stored in sys.modules.
    - gh-141726: Add PyDict_SetDefaultRef() to the Stable ABI.
    - gh-140042: Removed the sqlite3_shutdown call that could
      cause closing connections for sqlite when used with
      multiple sub interpreters.
    - gh-141070: Add PyUnstable_Object_Dump() to dump an object
      to stderr. It should only be used for debugging. Patch by
      Victor Stinner.
    - gh-139165: Expose the functions Py_SIZE(), Py_IS_TYPE() and
      Py_SET_SIZE() in the Stable ABI.
Build
    - gh-131372: Add LDVERSION and EXE to the base_interpreter
      value of build-details.json.
    - gh-142454: When calculating the digest of the JIT stencils
      input, sort the hashed files by filenames before adding
      their content to the hasher. This ensures deterministic
      hash input and hence deterministic hash, independent on
      filesystem order.
    - gh-131372: build-details.py will only be installed as part
      of the main install (make install). make altinstall will no
      longer include it.
    - gh-142234: Allow --enable-wasm-dynamic-linking for WASI.
      While CPython doesn’t directly support it so
      external/downstream users do not have to patch in support
      for the flag.
    - gh-142050: Fixed a bug where JIT stencils produced on
      Windows contained debug data. Patch by Chris Eibl.
    - gh-141808: Do not generate the jit stencils twice in case
      of PGO builds on Windows.
    - gh-141926: RUNSHARED is no longer cleared when
      cross-compiling. Previously, RUNSHARED was cleared when
      cross-compiling, which breaks PGO when using
      --enabled-shared on systems where the cross-compiled
      CPython is otherwise executable (e.g., via transparent
      emulation).
    - gh-141808: When running make clean-retain-profile, keep the
      generated JIT stencils. That way, the stencils are not
      generated twice when Profile-guided optimization (PGO) is
      used. It also allows distributors to supply their own
      pre-built JIT stencils.
    - gh-141784: Fix _remote_debugging_module.c compilation on
      32-bit Linux. Include Python.h before system headers to
      make sure that _remote_debugging_module.c uses the same
      types (ABI) than Python. Patch by Victor Stinner.
    - gh-141172: Update to WASI SDK 29.
    - gh-139707: Add configure option
      --with-missing-stdlib-config=FILE allows which distributors
      to pass a JSON configuration file containing custom error
      messages for missing standard library modules.
    - gh-108819: Honor --with-platlibdir in the pure-Python
      standard library installation path, if PLATLIBDIR doesn’t
      match the value used in LIBDIR.
Tests
    - gh-140381: Fix flaky test_profiling tests on i686 and s390x
      architectures by increasing slow_fibonacci call frequency
      from every 5th iteration to every 2nd iteration.
    - gh-140210: Make
      test_sysconfig.test_parse_makefile_renamed_vars less
      fragile by clearing the environment variables before
      parsing the Makefile.
2025-12-19 17:49:47 +01:00
2544c41d2e Add CVE-2025-13836-http-resp-cont-len.patch (bsc#1254400, CVE-2025-13836)
Prevent reading an HTTP response from a server, if no read amount is
specified, with using Content-Length per default as the length.
2025-12-18 22:40:41 +01:00
Steve Kowalik
39c4b2a029 Update to Python 3.15.0~a2
Extremely long changelog omitted for clarity.
2025-12-10 14:50:34 +11:00
11 changed files with 912 additions and 429 deletions

View File

@@ -4,11 +4,11 @@
Lib/test/test_xml_etree.py | 10 ++++++++++
3 files changed, 17 insertions(+)
Index: Python-3.15.0a1/Lib/test/test_pyexpat.py
Index: Python-3.15.0a3/Lib/test/test_pyexpat.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_pyexpat.py 2025-10-24 23:53:24.356893960 +0200
+++ Python-3.15.0a1/Lib/test/test_pyexpat.py 2025-10-24 23:53:50.136311340 +0200
@@ -843,6 +843,10 @@
--- Python-3.15.0a3.orig/Lib/test/test_pyexpat.py 2025-12-16 13:26:12.000000000 +0100
+++ Python-3.15.0a3/Lib/test/test_pyexpat.py 2025-12-19 02:26:33.964969539 +0100
@@ -860,6 +860,10 @@
self.assertEqual(started, ['doc'])
def test_reparse_deferral_disabled(self):
@@ -19,10 +19,10 @@ Index: Python-3.15.0a1/Lib/test/test_pyexpat.py
started = []
def start_element(name, _):
Index: Python-3.15.0a1/Lib/test/test_sax.py
Index: Python-3.15.0a3/Lib/test/test_sax.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_sax.py 2025-10-24 23:53:24.425039914 +0200
+++ Python-3.15.0a1/Lib/test/test_sax.py 2025-10-24 23:53:50.136951370 +0200
--- Python-3.15.0a3.orig/Lib/test/test_sax.py 2025-12-16 13:26:12.000000000 +0100
+++ Python-3.15.0a3/Lib/test/test_sax.py 2025-12-19 02:26:33.966048947 +0100
@@ -1241,6 +1241,9 @@
self.assertEqual(result.getvalue(), start + b"<doc></doc>")
@@ -33,10 +33,10 @@ Index: Python-3.15.0a1/Lib/test/test_sax.py
def test_flush_reparse_deferral_disabled(self):
result = BytesIO()
xmlgen = XMLGenerator(result)
Index: Python-3.15.0a1/Lib/test/test_xml_etree.py
Index: Python-3.15.0a3/Lib/test/test_xml_etree.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_xml_etree.py 2025-10-24 23:53:24.855327755 +0200
+++ Python-3.15.0a1/Lib/test/test_xml_etree.py 2025-10-24 23:53:50.137646227 +0200
--- Python-3.15.0a3.orig/Lib/test/test_xml_etree.py 2025-12-16 13:26:12.000000000 +0100
+++ Python-3.15.0a3/Lib/test/test_xml_etree.py 2025-12-19 02:26:33.966681016 +0100
@@ -138,6 +138,11 @@
return mock.patch.object(cls, "__eq__", autospec=True, wraps=eq)
@@ -49,7 +49,7 @@ Index: Python-3.15.0a1/Lib/test/test_xml_etree.py
def checkwarnings(*filters, quiet=False):
def decorator(test):
def newtest(*args, **kwargs):
@@ -1547,9 +1552,11 @@
@@ -1620,9 +1625,11 @@
self.assert_event_tags(parser, [('end', 'root')])
self.assertIsNone(parser.close())
@@ -61,7 +61,7 @@ Index: Python-3.15.0a1/Lib/test/test_xml_etree.py
def test_simple_xml_chunk_5(self):
self.test_simple_xml(chunk_size=5, flush=True)
@@ -1776,6 +1783,9 @@
@@ -1849,6 +1856,9 @@
self.assert_event_tags(parser, [('end', 'doc')])

View File

@@ -1,367 +0,0 @@
From e3b2c85d567b51dd84d1faf83398e97c0bf1eb60 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Fri, 30 May 2025 22:33:31 +0300
Subject: [PATCH 1/2] gh-134873: Fix quadratic complexity in
os.path.expandvars()
---
Lib/ntpath.py | 126 +++-------
Lib/posixpath.py | 43 +--
Lib/test/test_genericpath.py | 21 +
Lib/test/test_ntpath.py | 22 +
Misc/NEWS.d/next/Security/2025-05-30-22-33-27.gh-issue-136065.bu337o.rst | 1
5 files changed, 97 insertions(+), 116 deletions(-)
create mode 100644 Misc/NEWS.d/next/Security/2025-05-30-22-33-27.gh-issue-134873.bu337o.rst
Index: Python-3.15.0a1/Lib/ntpath.py
===================================================================
--- Python-3.15.0a1.orig/Lib/ntpath.py 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Lib/ntpath.py 2025-11-13 18:28:37.445868967 +0100
@@ -400,17 +400,23 @@
# XXX With COMMAND.COM you can use any characters in a variable name,
# XXX except '^|<>='.
+_varpattern = r"'[^']*'?|%(%|[^%]*%?)|\$(\$|[-\w]+|\{[^}]*\}?)"
+_varsub = None
+_varsubb = None
+
def expandvars(path):
"""Expand shell variables of the forms $var, ${var} and %var%.
Unknown variables are left unchanged."""
path = os.fspath(path)
+ global _varsub, _varsubb
if isinstance(path, bytes):
if b'$' not in path and b'%' not in path:
return path
- import string
- varchars = bytes(string.ascii_letters + string.digits + '_-', 'ascii')
- quote = b'\''
+ if not _varsubb:
+ import re
+ _varsubb = re.compile(_varpattern.encode(), re.ASCII).sub
+ sub = _varsubb
percent = b'%'
brace = b'{'
rbrace = b'}'
@@ -419,94 +425,44 @@
else:
if '$' not in path and '%' not in path:
return path
- import string
- varchars = string.ascii_letters + string.digits + '_-'
- quote = '\''
+ if not _varsub:
+ import re
+ _varsub = re.compile(_varpattern, re.ASCII).sub
+ sub = _varsub
percent = '%'
brace = '{'
rbrace = '}'
dollar = '$'
environ = os.environ
- res = path[:0]
- index = 0
- pathlen = len(path)
- while index < pathlen:
- c = path[index:index+1]
- if c == quote: # no expansion within single quotes
- path = path[index + 1:]
- pathlen = len(path)
- try:
- index = path.index(c)
- res += c + path[:index + 1]
- except ValueError:
- res += c + path
- index = pathlen - 1
- elif c == percent: # variable or '%'
- if path[index + 1:index + 2] == percent:
- res += c
- index += 1
- else:
- path = path[index+1:]
- pathlen = len(path)
- try:
- index = path.index(percent)
- except ValueError:
- res += percent + path
- index = pathlen - 1
- else:
- var = path[:index]
- try:
- if environ is None:
- value = os.fsencode(os.environ[os.fsdecode(var)])
- else:
- value = environ[var]
- except KeyError:
- value = percent + var + percent
- res += value
- elif c == dollar: # variable or '$$'
- if path[index + 1:index + 2] == dollar:
- res += c
- index += 1
- elif path[index + 1:index + 2] == brace:
- path = path[index+2:]
- pathlen = len(path)
- try:
- index = path.index(rbrace)
- except ValueError:
- res += dollar + brace + path
- index = pathlen - 1
- else:
- var = path[:index]
- try:
- if environ is None:
- value = os.fsencode(os.environ[os.fsdecode(var)])
- else:
- value = environ[var]
- except KeyError:
- value = dollar + brace + var + rbrace
- res += value
- else:
- var = path[:0]
- index += 1
- c = path[index:index + 1]
- while c and c in varchars:
- var += c
- index += 1
- c = path[index:index + 1]
- try:
- if environ is None:
- value = os.fsencode(os.environ[os.fsdecode(var)])
- else:
- value = environ[var]
- except KeyError:
- value = dollar + var
- res += value
- if c:
- index -= 1
+
+ def repl(m):
+ lastindex = m.lastindex
+ if lastindex is None:
+ return m[0]
+ name = m[lastindex]
+ if lastindex == 1:
+ if name == percent:
+ return name
+ if not name.endswith(percent):
+ return m[0]
+ name = name[:-1]
else:
- res += c
- index += 1
- return res
+ if name == dollar:
+ return name
+ if name.startswith(brace):
+ if not name.endswith(rbrace):
+ return m[0]
+ name = name[1:-1]
+
+ try:
+ if environ is None:
+ return os.fsencode(os.environ[os.fsdecode(name)])
+ else:
+ return environ[name]
+ except KeyError:
+ return m[0]
+
+ return sub(repl, path)
# Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A\B.
Index: Python-3.15.0a1/Lib/posixpath.py
===================================================================
--- Python-3.15.0a1.orig/Lib/posixpath.py 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Lib/posixpath.py 2025-11-13 18:28:37.446168939 +0100
@@ -285,42 +285,41 @@
# This expands the forms $variable and ${variable} only.
# Non-existent variables are left unchanged.
-_varprog = None
-_varprogb = None
+_varpattern = r'\$(\w+|\{[^}]*\}?)'
+_varsub = None
+_varsubb = None
def expandvars(path):
"""Expand shell variables of form $var and ${var}. Unknown variables
are left unchanged."""
path = os.fspath(path)
- global _varprog, _varprogb
+ global _varsub, _varsubb
if isinstance(path, bytes):
if b'$' not in path:
return path
- if not _varprogb:
+ if not _varsubb:
import re
- _varprogb = re.compile(br'\$(\w+|\{[^}]*\})', re.ASCII)
- search = _varprogb.search
+ _varsubb = re.compile(_varpattern.encode(), re.ASCII).sub
+ sub = _varsubb
start = b'{'
end = b'}'
environ = getattr(os, 'environb', None)
else:
if '$' not in path:
return path
- if not _varprog:
+ if not _varsub:
import re
- _varprog = re.compile(r'\$(\w+|\{[^}]*\})', re.ASCII)
- search = _varprog.search
+ _varsub = re.compile(_varpattern, re.ASCII).sub
+ sub = _varsub
start = '{'
end = '}'
environ = os.environ
- i = 0
- while True:
- m = search(path, i)
- if not m:
- break
- i, j = m.span(0)
- name = m.group(1)
- if name.startswith(start) and name.endswith(end):
+
+ def repl(m):
+ name = m[1]
+ if name.startswith(start):
+ if not name.endswith(end):
+ return m[0]
name = name[1:-1]
try:
if environ is None:
@@ -328,13 +327,11 @@
else:
value = environ[name]
except KeyError:
- i = j
+ return m[0]
else:
- tail = path[j:]
- path = path[:i] + value
- i = len(path)
- path += tail
- return path
+ return value
+
+ return sub(repl, path)
# Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A/B.
Index: Python-3.15.0a1/Lib/test/test_genericpath.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_genericpath.py 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Lib/test/test_genericpath.py 2025-11-13 18:28:37.446403609 +0100
@@ -9,9 +9,9 @@
import sys
import unittest
import warnings
-from test.support import (
- is_apple, os_helper, warnings_helper
-)
+from test import support
+from test.support import os_helper
+from test.support import warnings_helper
from test.support.script_helper import assert_python_ok
from test.support.os_helper import FakePath
@@ -462,6 +462,19 @@
os.fsencode('$bar%s bar' % nonascii))
check(b'$spam}bar', os.fsencode('%s}bar' % nonascii))
+ @support.requires_resource('cpu')
+ def test_expandvars_large(self):
+ expandvars = self.pathmodule.expandvars
+ with os_helper.EnvironmentVarGuard() as env:
+ env.clear()
+ env["A"] = "B"
+ n = 100_000
+ self.assertEqual(expandvars('$A'*n), 'B'*n)
+ self.assertEqual(expandvars('${A}'*n), 'B'*n)
+ self.assertEqual(expandvars('$A!'*n), 'B!'*n)
+ self.assertEqual(expandvars('${A}A'*n), 'BA'*n)
+ self.assertEqual(expandvars('${'*10*n), '${'*10*n)
+
def test_abspath(self):
self.assertIn("foo", self.pathmodule.abspath("foo"))
with warnings.catch_warnings():
@@ -519,7 +532,7 @@
# directory (when the bytes name is used).
and sys.platform not in {
"win32", "emscripten", "wasi"
- } and not is_apple
+ } and not support.is_apple
):
name = os_helper.TESTFN_UNDECODABLE
elif os_helper.TESTFN_NONASCII:
Index: Python-3.15.0a1/Lib/test/test_ntpath.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_ntpath.py 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Lib/test/test_ntpath.py 2025-11-13 18:28:55.652664525 +0100
@@ -9,7 +9,8 @@
import warnings
from ntpath import ALL_BUT_LAST, ALLOW_MISSING
from test import support
-from test.support import TestFailed, cpython_only, os_helper
+from test import support
+from test.support import os_helper
from test.support.os_helper import FakePath
from test import test_genericpath
from tempfile import TemporaryFile
@@ -59,7 +60,7 @@
fn = fn.replace("\\", "\\\\")
gotResult = eval(fn)
if wantResult != gotResult and _norm(wantResult) != _norm(gotResult):
- raise TestFailed("%s should return: %s but returned: %s" \
+ raise support.TestFailed("%s should return: %s but returned: %s" \
%(str(fn), str(wantResult), str(gotResult)))
# then with bytes
@@ -75,7 +76,7 @@
warnings.simplefilter("ignore", DeprecationWarning)
gotResult = eval(fn)
if _norm(wantResult) != _norm(gotResult):
- raise TestFailed("%s should return: %s but returned: %s" \
+ raise support.TestFailed("%s should return: %s but returned: %s" \
%(str(fn), str(wantResult), repr(gotResult)))
@@ -1133,6 +1134,19 @@
check('%spam%bar', '%sbar' % nonascii)
check('%{}%bar'.format(nonascii), 'ham%sbar' % nonascii)
+ @support.requires_resource('cpu')
+ def test_expandvars_large(self):
+ expandvars = ntpath.expandvars
+ with os_helper.EnvironmentVarGuard() as env:
+ env.clear()
+ env["A"] = "B"
+ n = 100_000
+ self.assertEqual(expandvars('%A%'*n), 'B'*n)
+ self.assertEqual(expandvars('%A%A'*n), 'BA'*n)
+ self.assertEqual(expandvars("''"*n + '%%'), "''"*n + '%')
+ self.assertEqual(expandvars("%%"*n), "%"*n)
+ self.assertEqual(expandvars("$$"*n), "$"*n)
+
def test_expanduser(self):
tester('ntpath.expanduser("test")', 'test')
@@ -1550,7 +1564,7 @@
self.assertTrue(os.path.exists(r"\\.\CON"))
@unittest.skipIf(sys.platform != 'win32', "Fast paths are only for win32")
- @cpython_only
+ @support.cpython_only
def test_fast_paths_in_use(self):
# There are fast paths of these functions implemented in posixmodule.c.
# Confirm that they are being used, and not the Python fallbacks in
Index: Python-3.15.0a1/Misc/NEWS.d/next/Security/2025-05-30-22-33-27.gh-issue-136065.bu337o.rst
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ Python-3.15.0a1/Misc/NEWS.d/next/Security/2025-05-30-22-33-27.gh-issue-136065.bu337o.rst 2025-11-13 18:28:37.447873576 +0100
@@ -0,0 +1 @@
+Fix quadratic complexity in :func:`os.path.expandvars`.

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File diff suppressed because one or more lines are too long

BIN
Python-3.15.0a3.tar.xz LFS Normal file

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View File

@@ -13,11 +13,11 @@ Co-Authored-By: Xavier de Gaye <xdegaye@gmail.com>
5 files changed, 37 insertions(+), 9 deletions(-)
create mode 100644 Misc/NEWS.d/next/Build/2019-12-16-17-50-42.bpo-31046.XA-Qfr.rst
Index: Python-3.15.0a1/Doc/library/ensurepip.rst
Index: Python-3.15.0a3/Doc/library/ensurepip.rst
===================================================================
--- Python-3.15.0a1.orig/Doc/library/ensurepip.rst 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Doc/library/ensurepip.rst 2025-10-24 23:53:43.587408643 +0200
@@ -61,7 +61,11 @@
--- Python-3.15.0a3.orig/Doc/library/ensurepip.rst 2025-12-16 13:26:12.000000000 +0100
+++ Python-3.15.0a3/Doc/library/ensurepip.rst 2025-12-19 02:25:25.531895542 +0100
@@ -65,7 +65,11 @@
By default, ``pip`` is installed into the current virtual environment
(if one is active) or into the system site packages (if there is no
active virtual environment). The installation location can be controlled
@@ -30,7 +30,7 @@ Index: Python-3.15.0a1/Doc/library/ensurepip.rst
.. option:: --root <dir>
@@ -102,7 +106,7 @@
@@ -106,7 +110,7 @@
Returns a string specifying the available version of pip that will be
installed when bootstrapping an environment.
@@ -39,7 +39,7 @@ Index: Python-3.15.0a1/Doc/library/ensurepip.rst
altinstall=False, default_pip=False, \
verbosity=0)
@@ -112,6 +116,8 @@
@@ -116,6 +120,8 @@
If *root* is ``None``, then installation uses the default install location
for the current environment.
@@ -48,7 +48,7 @@ Index: Python-3.15.0a1/Doc/library/ensurepip.rst
*upgrade* indicates whether or not to upgrade an existing installation
of an earlier version of ``pip`` to the available version.
@@ -132,6 +138,8 @@
@@ -136,6 +142,8 @@
*verbosity* controls the level of output to :data:`sys.stdout` from the
bootstrapping operation.
@@ -57,10 +57,10 @@ Index: Python-3.15.0a1/Doc/library/ensurepip.rst
.. audit-event:: ensurepip.bootstrap root ensurepip.bootstrap
.. note::
Index: Python-3.15.0a1/Lib/ensurepip/__init__.py
Index: Python-3.15.0a3/Lib/ensurepip/__init__.py
===================================================================
--- Python-3.15.0a1.orig/Lib/ensurepip/__init__.py 2025-10-24 23:53:22.118065622 +0200
+++ Python-3.15.0a1/Lib/ensurepip/__init__.py 2025-10-24 23:53:43.587899003 +0200
--- Python-3.15.0a3.orig/Lib/ensurepip/__init__.py 2025-12-19 02:25:10.205902876 +0100
+++ Python-3.15.0a3/Lib/ensurepip/__init__.py 2025-12-19 02:25:25.532348886 +0100
@@ -106,27 +106,27 @@
os.environ['PIP_CONFIG_FILE'] = os.devnull
@@ -123,10 +123,10 @@ Index: Python-3.15.0a1/Lib/ensurepip/__init__.py
upgrade=args.upgrade,
user=args.user,
verbosity=args.verbosity,
Index: Python-3.15.0a1/Lib/test/test_ensurepip.py
Index: Python-3.15.0a3/Lib/test/test_ensurepip.py
===================================================================
--- Python-3.15.0a1.orig/Lib/test/test_ensurepip.py 2025-10-24 23:53:23.546712597 +0200
+++ Python-3.15.0a1/Lib/test/test_ensurepip.py 2025-10-24 23:53:43.588286136 +0200
--- Python-3.15.0a3.orig/Lib/test/test_ensurepip.py 2025-12-19 02:25:11.631602338 +0100
+++ Python-3.15.0a3/Lib/test/test_ensurepip.py 2025-12-19 02:25:25.532817735 +0100
@@ -105,6 +105,17 @@
unittest.mock.ANY,
)
@@ -145,11 +145,11 @@ Index: Python-3.15.0a1/Lib/test/test_ensurepip.py
def test_bootstrapping_with_user(self):
ensurepip.bootstrap(user=True)
Index: Python-3.15.0a1/Makefile.pre.in
Index: Python-3.15.0a3/Makefile.pre.in
===================================================================
--- Python-3.15.0a1.orig/Makefile.pre.in 2025-10-24 23:53:39.419910772 +0200
+++ Python-3.15.0a1/Makefile.pre.in 2025-10-24 23:53:43.588889640 +0200
@@ -2378,7 +2378,7 @@
--- Python-3.15.0a3.orig/Makefile.pre.in 2025-12-19 02:25:24.201299566 +0100
+++ Python-3.15.0a3/Makefile.pre.in 2025-12-19 02:25:25.533184405 +0100
@@ -2389,7 +2389,7 @@
install|*) ensurepip="" ;; \
esac; \
$(RUNSHARED) $(PYTHON_FOR_BUILD) -m ensurepip \
@@ -158,7 +158,7 @@ Index: Python-3.15.0a1/Makefile.pre.in
fi
.PHONY: altinstall
@@ -2389,7 +2389,7 @@
@@ -2400,7 +2400,7 @@
install|*) ensurepip="--altinstall" ;; \
esac; \
$(RUNSHARED) $(PYTHON_FOR_BUILD) -m ensurepip \
@@ -167,9 +167,9 @@ Index: Python-3.15.0a1/Makefile.pre.in
fi
.PHONY: commoninstall
Index: Python-3.15.0a1/Misc/NEWS.d/next/Build/2019-12-16-17-50-42.bpo-31046.XA-Qfr.rst
Index: Python-3.15.0a3/Misc/NEWS.d/next/Build/2019-12-16-17-50-42.bpo-31046.XA-Qfr.rst
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ Python-3.15.0a1/Misc/NEWS.d/next/Build/2019-12-16-17-50-42.bpo-31046.XA-Qfr.rst 2025-10-24 23:53:43.589498870 +0200
+++ Python-3.15.0a3/Misc/NEWS.d/next/Build/2019-12-16-17-50-42.bpo-31046.XA-Qfr.rst 2025-12-19 02:25:25.534506792 +0100
@@ -0,0 +1 @@
+A directory prefix can now be specified when using :mod:`ensurepip`.

View File

@@ -4,17 +4,18 @@ Date: Tue, 23 Sep 2025 10:20:16 +0200
Subject: [PATCH 1/2] gh-139257: Support docutils >= 0.22
---
Doc/tools/extensions/pyspecific.py | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
Doc/tools/extensions/pyspecific.py | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
Index: Python-3.15.0a1/Doc/tools/extensions/pyspecific.py
Index: Python-3.15.0a3/Doc/tools/extensions/pyspecific.py
===================================================================
--- Python-3.15.0a1.orig/Doc/tools/extensions/pyspecific.py 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Doc/tools/extensions/pyspecific.py 2025-10-24 23:55:02.700550007 +0200
@@ -25,11 +25,21 @@
--- Python-3.15.0a3.orig/Doc/tools/extensions/pyspecific.py 2025-12-16 13:26:12.000000000 +0100
+++ Python-3.15.0a3/Doc/tools/extensions/pyspecific.py 2025-12-19 02:27:34.493094269 +0100
@@ -24,6 +24,24 @@
# Used in conf.py and updated here by python/release-tools/run_release.py
SOURCE_URI = 'https://github.com/python/cpython/tree/main/%s'
# monkey-patch reST parser to disable alphabetic and roman enumerated lists
+# monkey-patch reST parser to disable alphabetic and roman enumerated lists
+def _disable_alphabetic_and_roman(text):
+ try:
+ # docutils >= 0.22
@@ -25,12 +26,13 @@ Index: Python-3.15.0a1/Doc/tools/extensions/pyspecific.py
+ return None
+
+
from docutils.parsers.rst.states import Body
Body.enum.converters['loweralpha'] = \
Body.enum.converters['upperalpha'] = \
Body.enum.converters['lowerroman'] = \
- Body.enum.converters['upperroman'] = lambda x: None
+from docutils.parsers.rst.states import Body
+Body.enum.converters['loweralpha'] = \
+ Body.enum.converters['upperalpha'] = \
+ Body.enum.converters['lowerroman'] = \
+ Body.enum.converters['upperroman'] = _disable_alphabetic_and_roman
+
+
class PyAwaitableMixin(object):
def handle_signature(self, sig, signode):
ret = super(PyAwaitableMixin, self).handle_signature(sig, signode)

View File

@@ -2,11 +2,11 @@
Makefile.pre.in | 5 +++++
1 file changed, 5 insertions(+)
Index: Python-3.15.0a1/Makefile.pre.in
Index: Python-3.15.0a3/Makefile.pre.in
===================================================================
--- Python-3.15.0a1.orig/Makefile.pre.in 2025-10-14 12:46:08.000000000 +0200
+++ Python-3.15.0a1/Makefile.pre.in 2025-10-24 23:53:39.419910772 +0200
@@ -1917,6 +1917,11 @@
--- Python-3.15.0a3.orig/Makefile.pre.in 2025-12-19 02:26:23.594002103 +0100
+++ Python-3.15.0a3/Makefile.pre.in 2025-12-19 02:26:28.185444105 +0100
@@ -1926,6 +1926,11 @@
-DGITBRANCH="\"`LC_ALL=C $(GITBRANCH)`\"" \
-o $@ $(srcdir)/Modules/getbuildinfo.c

View File

@@ -1,3 +1,851 @@
-------------------------------------------------------------------
Fri Dec 19 01:05:54 UTC 2025 - Matej Cepl <mcepl@cepl.eu>
Update to 3.15.0~a3:
- Security
- gh-142145: Remove quadratic behavior in xml.minidom node ID
cache clearing (CVE-2025-12084, bsc#1254997).
- gh-42400: Fix buffer overflow in _Py_wrealpath() for paths
exceeding MAXPATHLEN bytes by using dynamic memory
allocation instead of fixed-size buffer. Patch by Shamil
Abdulaev.
- gh-119451: Fix a potential memory denial of service in the
http.client module. When connecting to a malicious server,
it could cause an arbitrary amount of memory to be
allocated. This could have led to symptoms including
a MemoryError, swapping, out of memory (OOM) killed
processes or containers, or even system crashes
(CVE-2025-13836, bsc#1254400).
- gh-119342: Fix a potential memory denial of service in the
plistlib module. When reading a Plist file received from
untrusted source, it could cause an arbitrary amount of
memory to be allocated. This could have led to symptoms
including a MemoryError, swapping, out of memory (OOM)
killed processes or containers, or even system crashes
(CVE-2025-13837, bsc#1254401).
- Library
- gh-142754: Add the ownerDocument attribute to
xml.dom.minidom elements and attributes created by directly
instantiating the Element or Attr class. Note that this way
of creating nodes is not supported; creator functions like
xml.dom.Document.documentElement() should be used instead.
- gh-142594: Fix crash in TextIOWrapper.close() when the
underlying buffers closed property calls detach().
- gh-76007: Deprecate __version__ from ctypes. Patch by Hugo
van Kemenade.
- gh-76007: Deprecate __version__ from wsgiref.simple_server.
Patch by Hugo van Kemenade.
- gh-142651: unittest.mock: fix a thread safety issue where
Mock.call_count may return inaccurate values when the mock
is called concurrently from multiple threads.
- gh-76007: Deprecate __version__ from http.server. Patch by
Hugo van Kemenade.
- gh-138122: Add --subprocesses flag to profiling.sampling
CLI to automatically profile subprocesses spawned by the
target. When enabled, the profiler monitors for new Python
subprocesses and profiles each one separately, writing
results to individual output files. This is useful for
profiling applications that use multiprocessing,
ProcessPoolExecutor, or other subprocess-based parallelism.
Patch by Pablo Galindo.
- gh-142595: Added type check during initialization of the
decimal module to prevent a crash in case of broken stdlib.
Patch by Sergey B Kirpichev.
- gh-142556: Fix crash when a task gets re-registered during
finalization in asyncio. Patch by Kumar Aditya.
- gh-138122: Add --mode=exception to the sampling profiler to
capture samples only from threads with an active exception,
useful for analyzing exception handling overhead. Patch by
Pablo Galindo.
- gh-142539: traceback: Fix location of carets in
SyntaxErrors when the source contains wide characters.
- gh-123241: Avoid reference count operations in garbage
collection of ctypes objects.
- gh-142451: hmac: correctly copy HMAC attributes for objects
copied through HMAC.copy(). Patch by Bénédikt Tran.
- gh-138122: The profiling.sampling flamegraph profiler now
supports inverted flamegraph view that aggregates all leaf
nodes. In a standard flamegraph, if a hot function is
called from multiple locations, it appears multiple times
as separate leaf nodes. In the inverted flamegraph, all
occurrences of the same leaf function are merged into
a single aggregated node at the root, showing the total
hotness of that function in one place. The children of each
aggregated node represent its callers, making it easier to
identify which functions consume the most CPU time and
where they are called from.
- gh-112527: The help text for required options in argparse
no longer extended with “ (default: None)”.
- gh-142438: Fixed a possible leaked GIL in
_PySSL_keylog_callback.
- gh-138122: Add bytecode-level instruction profiling to the
sampling profiler via the new --opcodes flag. When enabled,
the profiler captures which bytecode opcode is executing at
each sample, including Python 3.11+ adaptive
specializations, and visualizes this data in the heatmap,
flamegraph, gecko, and live output formats. Patch by Pablo
Galindo
- gh-142389: Add backtick markup support in argparse
description and epilog text to highlight inline code when
color output is enabled.
- gh-142346: Fix usage formatting for mutually exclusive
groups in argparse when they are preceded by positional
arguments or followed or intermixed with other optional
arguments.
- gh-142374: Fix cumulative percentage calculation for
recursive functions in the new sampling profiler. When
profiling recursive functions, cumulative statistics
(cumul%, cumtime) could exceed 100% because each recursive
frame in a stack was counted separately. For example,
a function recursing 500 times in every sample would show
50000% cumulative presence. The fix deduplicates locations
within each sample so cumulative stats correctly represent
“percentage of samples where this function was on the
stack”. Patch by Pablo Galindo.
- gh-142315: Pdb can now run scripts from anonymous pipes
used in process substitution. Patch by Bartosz Sławecki.
- gh-64532: Subparser help now includes required optional
arguments from the parent parser in the usage, making it
clearer what arguments are needed to run a subcommand.
Patch by Savannah Ostrowski.
- gh-142207: Fix: profiling.sampling may cause assertion
!(has_gil && gil_requested)
- gh-142332: Fix usage formatting for positional arguments in
mutually exclusive groups in argparse. in argparse.
- gh-142282: Fix winreg.QueryValueEx() to not accidentally
read garbage buffer under race condition.
- gh-142318: Fix typing 'q' at the help of the interactive
tachyon profiler exiting the profiler.
- gh-75949: Fix argparse to preserve | separators in mutually
exclusive groups when the usage line wraps due to length.
- gh-142267: Improve argparse performance by caching the
formatter used for argument validation.
- gh-139862: Remove color parameter from
argparse.HelpFormatter constructor. Color is controlled by
ArgumentParser.
- gh-68552: MisplacedEnvelopeHeaderDefect and Missing header
name defects are now correctly passed to the handle_defect
method of policy in FeedParser.
- gh-142206: The resource tracker in the multiprocessing
module can now understand messages from older versions of
itself. This avoids issues with upgrading Python while it
is running. (Note that such in-place upgrades are not
tested.)
- gh-142214: Fix two regressions in dataclasses in Python
3.14.1 related to annotations. An exception is no longer
raised if slots=True is used and the __init__ method does
not have an __annotate__ attribute (likely because
init=False was used). An exception is no longer raised if
annotations are requested on the __init__ method and one of
the fields is not present in the class annotations. This
can occur in certain dynamic scenarios. Patch by Jelle
Zijlstra.
- gh-142203: Remove the debug_override parameter from
importlib.util.cache_from_source() which has been
deprecated since Python 3.5.
- gh-138122: The _remote_debugging module now implements
frame caching in the RemoteUnwinder class to reduce memory
reads when profiling remote processes. When
cache_frames=True, unchanged portions of the call stack are
reused from previous samples, significantly improving
profiling performance for deep call stacks.
- gh-116738: Fix cmath data race when initializing
trigonometric tables with subinterpreters.
- gh-141982: Allow pdb to set breakpoints on async functions
with function names.
- gh-74389: When the stdin being used by a subprocess.Popen
instance is closed, this is now ignored in
subprocess.Popen.communicate() instead of leaving the class
in an inconsistent state.
- gh-87512: Fix subprocess.Popen.communicate() timeout
handling on Windows when writing large input. Previously,
the timeout was ignored during stdin writing, causing the
method to block indefinitely if the child process did not
consume input quickly. The stdin write is now performed in
a background thread, allowing the timeout to be properly
enforced.
- gh-141939: Add color to all interpolated values in argparse
help, like %(default)s or %(choices)s. Patch by Alex
Prengère.
- gh-141473: When subprocess.Popen.communicate() was called
with input and a timeout and is called for a second time
after a TimeoutExpired exception before the process has
died, it should no longer hang.
- gh-141999: Correctly allow KeyboardInterrupt to stop the
process when using profiling.sampling.
- gh-142006: Fix a bug in the email.policy.default folding
algorithm which incorrectly resulted in a doubled newline
when a line ending at exactly max_line_length was followed
by an unfoldable token.
- gh-141968: Remove data copy from re compilation of regexes
with large charsets by using bytearray.take_bytes().
- gh-141968: Remove data copy from encodings.idna encode()
and encode() by using bytearray.take_bytes().
- gh-141968: Remove data copy from codecs punycode encoding
by using bytearray.take_bytes().
- gh-141968: Remove data copy from
wave.Wave_read.readframes() and
wave.Wave_write.writeframes() by using
bytearray.take_bytes().
- gh-141968: Remove a data copy from base64.b32decode() and
base64.b32encode() by using bytearray.take_bytes().
- gh-59000: Fix pdb breakpoint resolution for class methods
when the module defining the class is not imported.
- gh-116738: Fix thread safety issue with re scanner objects
in free-threaded builds.
- gh-138122: The profiling.sampling flamegraph profiler now
displays thread status statistics showing the percentage of
time threads spend holding the GIL, running without the
GIL, waiting for the GIL, and performing garbage
collection. These statistics help identify GIL contention
and thread behavior patterns. When filtering by thread, the
display shows per-thread metrics.
- gh-141781: Fixed an issue where pdb.line_prefix assignment
was ignored if assigned after the module was imported.
- gh-141863: Update Streams to use bytearray.take_bytes() for
a over 10% performance improvement on pyperformance
asyncio_tcp benchmark.
- gh-141817: Add socket.IPV6_HDRINCL constant.
- gh-105836: Fix asyncio.run_coroutine_threadsafe() leaving
underlying cancelled asyncio task running.
- gh-141570: Support file-like object raising OSError from
fileno() in color detection (_colorize.can_colorize()).
This can occur when sys.stdout is redirected.
- gh-141679: Add colour to defaults in argparse help. Patch
by Hugo van Kemenade.
- gh-141686: Break reference cycles created by each call to
json.dump() or json.JSONEncoder.iterencode().
- gh-141659: Fix bad file descriptor errors from
_posixsubprocess on AIX.
- gh-141645: Add a new --live mode to the tachyon profiler in
profiling.sampling module. This mode consist of a live TUI
that displays real-time profiling statistics as the target
application runs, similar to top. Patch by Pablo Galindo
- gh-141615: Check stdin instead of stdout for use_rawinput
in pdb.
- gh-69113: Fix doctest to correctly report line numbers for
doctests in __test__ dictionary when formatted as
triple-quoted strings by finding unique lines in the string
and matching them in the source file.
- gh-141600: Fix musl version detection on Void Linux.
- gh-48752: Add readline.get_pre_input_hook() function to
retrieve the current pre-input hook. This allows
applications to save and restore the hook without
overwriting user settings. Patch by Sanyam Khurana.
- gh-141565: Add async-aware profiling to the Tachyon
sampling profiler. The profiler now reconstructs and
displays async task hierarchies in flamegraphs, making the
output more actionable for users. Patch by Savannah
Ostrowski and Pablo Galindo Salgado.
- gh-60107: Remove a copy from io.RawIOBase.read(). If the
underlying I/O class keeps a reference to the mutable
memory, raise a BufferError.
- gh-116738: Make csv module thread-safe on the free threaded
build.
- gh-140911: collections: Ensure that the methods
UserString.rindex() and UserString.index() accept
collections.UserString instances as the sub argument.
- gh-140875: Fix handling of unclosed character references
(named and numerical) followed by the end of file in
html.parser.HTMLParser with convert_charrefs=False.
- gh-140677: Add heatmap visualization mode to the Tachyon
sampling profiler. The new --heatmap output format provides
a line-by-line view showing execution intensity with
color-coded samples, inline statistics, and interactive
call graph navigation between callers and callees.
- gh-139946: Distinguish stdout and stderr when colorizing
output in argparse module.
- gh-76007: pydoc: Fix DeprecationWarning being raised when
generating doc for stdlib modules.
- gh-139686: Make importlib.reload no-op for lazy modules.
- gh-138697: Fix inferring dest from a single-dash long
option in argparse. If a short option and a single-dash
long option are passed to add_argument(), dest is now
inferred from the single-dash long option.
- gh-138525: Add support for single-dash long options and
alternate prefix characters in
argparse.BooleanOptionalAction.
- gh-79986: Add parsing for References and In-Reply-To
headers to the email library that parses the header content
as lists of message id tokens. This prevents them from
being folded incorrectly.
- gh-135559: Flag: a dir() on a Flag enumeration now shows
non-canonical members. (i.e. aliases).
- gh-134453: Fixed subprocess.Popen.communicate() input=
handling of memoryview instances that were non-byte shaped
on POSIX platforms. Those are now properly cast to a byte
shaped view instead of truncating the input. Windows
platforms did not have this bug.
- gh-127930: Add __all__ to tkinter.simpledialog.
- gh-115952: Fix a potential memory denial of service in the
pickle module. When reading a pickled data received from
untrusted source, it could cause an arbitrary amount of
memory to be allocated, even if the code that is allowed to
execute is restricted by overriding the find_class()
method. This could have led to symptoms including
a MemoryError, swapping, out of memory (OOM) killed
processes or containers, or even system crashes. bpo-40350:
Fix support for namespace packages in modulefinder.
- Documentation
- gh-141994: xml.sax.handler: Make Documentation of
xml.sax.handler.feature_external_ges warn of opening up to
external entity attacks. Patch by Sebastian Pipping.
- Core and Builtins
- gh-134584: Eliminate redundant refcounting from
_STORE_ATTR_INSTANCE_VALUE.
- gh-142718: JIT: Fix segfault caused by not flushing the
stack to memory at side exits.
- gh-142737: Tracebacks will be displayed in fallback mode
even if io.open() is lost. Previously, this would crash the
interpreter. Patch by Bartosz Sławecki.
- gh-116738: Make the attributes in bz2 thread-safe on the
free threaded build.
- gh-134584: Eliminate redundant refcounting from
_CALL_LIST_APPEND.
- gh-142554: Fix a crash in divmod() when
_pylong.int_divmod() does not return a tuple of length two
exactly. Patch by Bénédikt Tran.
- gh-142531: Fix a free-threaded GC performance regression.
If there are many untracked tuples, the GC will run too
often, resulting in poor performance. The fix is to include
untracked tuples in the “long lived” object count. The
number of frozen objects is also now included since the
free-threaded GC must scan those too.
- gh-142402: Fix reference counting when adjacent literal
parts are merged while constructing
string.templatelib.Template, preventing the displaced
string object from leaking.
- gh-116738: Make the attributes in zlib thread-safe on the
free threaded build.
- gh-142343: Fix SIGILL crash on m68k due to incorrect
assembly constraint.
- gh-142236: Improve the “Perhaps you forgot a comma?” syntax
error for multi-line string concatenations to point to the
last string instead of the first, making it easier to
locate where the comma is missing. Patch by Pablo Galindo.
- gh-142236: Fix incorrect keyword suggestions for syntax
errors in traceback. The keyword typo suggestion mechanism
would incorrectly suggest replacements when the extracted
source code was incomplete rather than containing an actual
typo. Patch by Pablo Galindo.
- gh-142305: Decrease the size of the generated stencils and
the runtime JIT code. Patch by Diego Russo.
- gh-135379: Implement a limited form of register allocation
known as “top of stack caching” in the JIT. It works by
keeping 0-3 of the top items in the stack in registers. The
code generator generates multiple versions of those uops
that do not escape and are relatively small. During JIT
compilation, the copy that produces the least memory
traffic is selected, spilling or reloading values when
needed.
- gh-142276: Fix missing type watcher when promoting
attribute loads to constants in the JIT. Patch by Ken Jin.
Reproducer by Yuancheng Jiang.
- gh-142218: Fix crash when inserting into a split table
dictionary with a non str key that matches an existing key.
- gh-141976: Check against abstract stack overflow in the JIT
optimizer.
- gh-97850: Remove all *.load_module() usage and definitions
from the import system and importlib. The method has been
deprecated in favor of importlib.abc.Loader.exec_module()
since Python 3.4.
- gh-142048: Fix quadratically increasing garbage collection
delays in free-threaded build.
- gh-65961: Stop setting __cached__ on modules.
- gh-141770: Annotate anonymous mmap usage only when
supported by the Linux kernel and if -X dev is used or
Python is built in debug mode. Patch by Donghee Na.
- gh-142029: Raise ModuleNotFoundError instead of crashing
when a nonexistent module is used as a name in
_imp.create_builtin().
- gh-142029: Raise ValueError instead of crashing when empty
string is used as a name in _imp.create_builtin().
- gh-141976: Protect against specialization failures in the
tracing JIT compiler for performance reasons.
- gh-141861: Fix invalid memory read in the ENTER_EXECUTOR
instruction.
- gh-141930: When importing a module, use Pythons regular
file object to ensure that writes to .pyc files are
complete or an appropriate error is raised.
- gh-138122: Add incomplete sample detection to prevent
corrupted profiling data. Each thread state now contains an
embedded base frame (sentinel at the bottom of the frame
stack) with owner type FRAME_OWNED_BY_INTERPRETER. The
profiler validates that stack unwinding terminates at this
sentinel frame. Samples that fail to reach the base frame
(due to race conditions, memory corruption, or other
errors) are now rejected rather than being included as
spurious data.
- gh-120158: Fix inconsistent state when enabling or
disabling monitoring events too many times.
- gh-140638: Expose a "candidates" stat in gc.get_stats() and
gc.callbacks.
- gh-141780: Fix Py_mod_gil with API added in PEP 793:
PyModule_FromSlotsAndSpec() and PyModExport hooks
- gh-141732: Ensure the __repr__() for ExceptionGroup and
BaseExceptionGroup does not change when the exception
sequence that was original passed in to its constructor is
subsequently mutated.
- gh-140638: Expose a "duration" stat in gc.get_stats() and
gc.callbacks.
- gh-139653: Only raise a RecursionError or trigger a fatal
error if the stack pointer is both below the limit pointer
and above the stack base. If outside of these bounds assume
that it is OK. This prevents false positives when
user-space threads swap stacks.
- gh-41779: Allowed defining the __dict__ and __weakref__
__slots__ for any class.
- gh-139103: Improve multithreaded scaling of dataclasses on
the free-threaded build.
- gh-141589: Change backoff counter to use prime numbers
instead of powers of 2. Use only 3 bits for counter and 13
bits for value. This allows to support values up to 8191.
Patch by Mikhail Efimov.
- gh-137007: Fix a bug during JIT compilation failure which
caused garbage collection debug assertions to fail.
- gh-132657: For the free-threaded build, avoid locking the
set object for the __contains__ method.
- gh-134584: Eliminate redundant refcounting from
_CALL_STR_1.
- gh-134584: Eliminate redundant refcounting from
_CALL_BUILTIN_O.
- gh-134584: Eliminate redundant refcounting from
_CALL_TUPLE_1. Patch by Noam Cohen
- C API
- gh-142589: Fix
PyUnstable_Object_IsUniqueReferencedTemporary() handling of
tagged ints on the interpreter stack.
- gh-142571: PyUnstable_CopyPerfMapFile() now checks that
opening the file succeeded before flushing.
- gh-142225: Fixed the PyABIInfo_VAR macro.
- gh-141049: _PyObject_CallMethodId(), _PyObject_GetAttrId()
and _PyUnicode_FromId() are deprecated since 3.15 and will
be removed in 3.20. Instead, use
PyUnicode_InternFromString() and cache the result in the
module state, then call PyObject_CallMethod() or
PyObject_GetAttr(). Patch by Victor Stinner.
- gh-142163: Fix the HAVE_THREAD_LOCAL macro being defined
without the Py_BUILD_CORE macro set after including
Python.h.
- gh-137422: Fix free threading race condition in
PyImport_AddModuleRef(). It was previously possible for two
calls to the function return two different objects, only
one of which was stored in sys.modules.
- gh-141726: Add PyDict_SetDefaultRef() to the Stable ABI.
- gh-140042: Removed the sqlite3_shutdown call that could
cause closing connections for sqlite when used with
multiple sub interpreters.
- gh-141070: Add PyUnstable_Object_Dump() to dump an object
to stderr. It should only be used for debugging. Patch by
Victor Stinner.
- gh-139165: Expose the functions Py_SIZE(), Py_IS_TYPE() and
Py_SET_SIZE() in the Stable ABI.
- Build
- gh-131372: Add LDVERSION and EXE to the base_interpreter
value of build-details.json.
- gh-142454: When calculating the digest of the JIT stencils
input, sort the hashed files by filenames before adding
their content to the hasher. This ensures deterministic
hash input and hence deterministic hash, independent on
filesystem order.
- gh-131372: build-details.py will only be installed as part
of the main install (make install). make altinstall will no
longer include it.
- gh-142234: Allow --enable-wasm-dynamic-linking for WASI.
While CPython doesnt directly support it so
external/downstream users do not have to patch in support
for the flag.
- gh-142050: Fixed a bug where JIT stencils produced on
Windows contained debug data. Patch by Chris Eibl.
- gh-141808: Do not generate the jit stencils twice in case
of PGO builds on Windows.
- gh-141926: RUNSHARED is no longer cleared when
cross-compiling. Previously, RUNSHARED was cleared when
cross-compiling, which breaks PGO when using
--enabled-shared on systems where the cross-compiled
CPython is otherwise executable (e.g., via transparent
emulation).
- gh-141808: When running make clean-retain-profile, keep the
generated JIT stencils. That way, the stencils are not
generated twice when Profile-guided optimization (PGO) is
used. It also allows distributors to supply their own
pre-built JIT stencils.
- gh-141784: Fix _remote_debugging_module.c compilation on
32-bit Linux. Include Python.h before system headers to
make sure that _remote_debugging_module.c uses the same
types (ABI) than Python. Patch by Victor Stinner.
- gh-141172: Update to WASI SDK 29.
- gh-139707: Add configure option
--with-missing-stdlib-config=FILE allows which distributors
to pass a JSON configuration file containing custom error
messages for missing standard library modules.
- gh-108819: Honor --with-platlibdir in the pure-Python
standard library installation path, if PLATLIBDIR doesnt
match the value used in LIBDIR.
- Tests
- gh-140381: Fix flaky test_profiling tests on i686 and s390x
architectures by increasing slow_fibonacci call frequency
from every 5th iteration to every 2nd iteration.
- gh-140210: Make
test_sysconfig.test_parse_makefile_renamed_vars less
fragile by clearing the environment variables before
parsing the Makefile.
-------------------------------------------------------------------
Wed Dec 10 03:48:24 UTC 2025 - Steve Kowalik <steven.kowalik@suse.com>
- Update to 3.15.0~a2:
* Tools/Demos
+ gh-139198: Remove Tools/scripts/checkpip.py script.
+ gh-139188: Remove Tools/tz/zdump.py script.
* Tests
+ gh-140482: Preserve and restore the state of stty echo as part of the
test environment.
+ gh-140082: Update python -m test to set FORCE_COLOR=1 when being run
with color enabled so that unittest which is run by it with redirected
output will output in color.
+ gh-136442: Use exitcode 1 instead of 5 if
unittest.TestCase.setUpClass() raises an exception
* Security
+ gh-137836: Add support of the “plaintext” element, RAWTEXT elements
“xmp”, “iframe”, “noembed” and “noframes”, and optionally RAWTEXT
element “noscript” in html.parser.HTMLParser.
+ gh-136063: email.message: ensure linear complexity for legacy HTTP
parameters parsing. Patch by Bénédikt Tran.
+ gh-136065: Fix quadratic complexity in os.path.expandvars().
(CVE-2025-6075, bsc#1252974)
* Library
+ gh-141497: ipaddress: ensure that the methods IPv4Network.hosts() and
IPv6Network.hosts() always return an iterator.
+ gh-140938: The statistics.stdev() and statistics.pstdev() functions now
raise a ValueError when the input contains an infinity or a NaN.
+ gh-124111: Updated Tcl threading configuration in _tkinter to assume
that threads are always available in Tcl 9 and later.
+ gh-137109: The os.fork and related forking APIs will no longer warn in
the common case where Linux or macOS platform APIs return the number of
threads in a process and find the answer to be 1 even when a
os.register_at_fork() after_in_parent= callback (re)starts a thread.
+ gh-141314: Fix assertion failure in io.TextIOWrapper.tell() when
reading files with standalone carriage return (\r) line endings.
+ gh-141311: Fix assertion failure in io.BytesIO.readinto() and undefined
behavior arising when read position is above capcity in io.BytesIO.
+ gh-87710: mimetypes: Update mime type for .ai files to application/pdf.
+ gh-85524: Update io.FileIO.readall, an implementation of
io.RawIOBase.readall(), to follow io.IOBase guidelines and raise
io.UnsupportedOperation when a file is in "w" mode rather than OSError
+ gh-141141: Fix a thread safety issue with base64.b85decode().
+ gh-141018: mimetypes: Update .exe, .dll, .rtf and (when
strict=False) .jpg to their correct IANA mime type.
+ gh-137969: Fix annotationlib.ForwardRef.evaluate() returning ForwardRef
objects which dont update with new globals.
+ gh-75593: Add support of path-like objects and bytes-like objects in
wave.open().
+ gh-140797: The undocumented re.Scanner class now forbids regular
expressions containing capturing groups in its lexicon patterns.
Patterns using capturing groups could previously lead to crashes with
segmentation fault. Use non-capturing groups (?:…) instead.
+ gh-125115: Refactor the pdb parsing issue so positional arguments can
pass through intuitively.
+ gh-140815: faulthandler now detects if a frame or a code object is
invalid or freed. Patch by Victor Stinner.
+ gh-100218: Correctly set errno when socket.if_nametoindex() or
socket.if_indextoname() raise an OSError. Patch by Bénédikt Tran.
+ gh-140734: multiprocessing: fix off-by-one error when checking the
length of a temporary socket file path. Patch by Bénédikt Tran.
+ gh-140873: Add support of non-descriptor callables in
functools.singledispatchmethod().
+ gh-140874: Bump the version of pip bundled in ensurepip to version 25.3
+ gh-140808: The internal class mailbox._ProxyFile is no longer a
parameterized generic.
+ gh-140691: In urllib.request, when opening a FTP URL fails because a
data connection cannot be made, the control connection's socket is now
closed to avoid a ResourceWarning.
+ gh-103847: Fix hang when cancelling process created by
asyncio.create_subprocess_exec() or asyncio.create_subprocess_shell().
+ gh-137821: Convert _json module to use Argument Clinic.
+ gh-140790: Initialize all Pdb's instance variables in __init__, remove
some hasattr/getattr
+ gh-140766: Add enum.show_flag_values() and enum.bin to enum.__all__.
+ gh-120057: Add os.reload_environ() to os.__all__.
+ gh-140741: Fix profiling.sampling.sample() incorrectly handling a
FileNotFoundError or PermissionError.
+ gh-140228: Avoid making unnecessary filesystem calls for frozen modules
in linecache when the global module cache is not present.
+ gh-139946: Error and warning keywords in argparse.ArgumentParser
messages are now colorized when color output is enabled, fixing a
visual inconsistency in which they remained plain text while other
output was colorized.
+ gh-140590: Fix arguments checking for functools.partial.__setstate__()
that may lead to internal state corruption and crash.
+ gh-140634: Fix a reference counting bug in os.sched_param.__reduce__().
+ gh-140650: Fix an issue where closing io.BufferedWriter could crash if
the closed attribute raised an exception on access or could not be
converted to a boolean.
+ gh-140601: xml.etree.ElementTree.iterparse() now emits a
ResourceWarning when the iterator is not explicitly closed and was
opened with a filename.
+ gh-140593: xml.parsers.expat: Fix a memory leak that could affect users
with ElementDeclHandler() set to a custom element declaration handler.
+ gh-140607: Inside io.RawIOBase.read(), validate that the count of bytes
returned by io.RawIOBase.readinto() is valid (inside the provided
buffer).
+ gh-138162: Fix logging.LoggerAdapter with merge_extra=True and without
the extra argument.
+ gh-140481: Improve error message when trying to iterate a Tk widget,
image or font.
+ gh-138774: ast.unparse() now generates full source code when handling
ast.Interpolation nodes that do not have a specified source.
+ gh-140474: Fix memory leak in array.array when creating arrays from an
empty str and the u type code.
+ gh-140448: Change the default of suggest_on_error to True in
argparse.ArgumentParser.
+ gh-137530: dataclasses Fix annotations for generated __init__ methods
by replacing the annotations that were in-line in the generated source
code with __annotate__ functions attached to the methods.
+ gh-140348: Fix regression in Python 3.14.0 where using the | operator
on a typing.Union object combined with an object that is not a type
would raise an error.
+ gh-76007: decimal: Deprecate __version__ and replace with
decimal.SPEC_VERSION.
+ gh-76007: Deprecate __version__ from a imaplib.
+ gh-140272: Fix memory leak in the clear() method of the dbm.gnu
database.
+ gh-129117: unicodedata: Add isxidstart() and isxidcontinue() functions
to check whether a character can start or continue a Unicode Standard
Annex #31 identifier.
+ gh-140251: Colorize the default import statement import asyncio in
asyncio REPL.
+ gh-140212: Calendar's HTML formatting now accepts year and month as
options.
+ gh-135801: Improve filtering by module in warnings.warn_explicit() if
no module argument is passed
+ gh-139707: Improve ModuleNotFoundError error message when a standard
library module is missing.
+ gh-140120: Fixed a memory leak in hmac when it was using the hacl-star
backend.
+ gh-140141: The importlib.metadata.PackageNotFoundError traceback raised
when importlib.metadata.Distribution.from_name cannot discover a
distribution no longer includes a transient StopIteration exception
trace.
+ gh-140166: mimetypes: Per the IANA assignment, update the MIME type for
the .texi and .texinfo file formats to application/texinfo, instead of
application/x-texinfo.
+ gh-140135: Speed up io.RawIOBase.readall() by using PyBytesWriter API
+ gh-136702: encodings: Deprecate passing a non-ascii encoding name to
encodings.normalize_encoding() and schedule removal of support for
Python 3.17.
+ gh-139940: Print clearer error message when using pdb to attach to a
non-existing process.
+ gh-139462: When a child process in a
concurrent.futures.ProcessPoolExecutor terminates abruptly, the
resulting traceback will now tell you the PID and exit code of the
terminated process. Contributed by Jonathan Berg.
+ gh-63161: Fix tokenize.detect_encoding(). 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.
+ gh-101828: Fix 'shift_jisx0213', 'shift_jis_2004', 'euc_jisx0213' and
'euc_jis_2004' codecs truncating null chars as they were treated as
part of multi-character sequences.
+ gh-139246: fix: paste zero-width in default repl width is wrong.
+ gh-83714: Implement os.statx() on Linux kernel versions 4.11 and later
with glibc versions 2.28 and later.
+ gh-138891: Fix SyntaxError when inspect.get_annotations(f,
eval_str=True) is called on a function annotated with a PEP 646
star_expression
+ gh-138859: Fix generic type parameterization raising a TypeError when
omitting a ParamSpec that has a default which is not a list of types.
+ gh-138764: Prevent annotationlib.call_annotate_function() from calling
__annotate__ functions that don't support VALUE_WITH_FAKE_GLOBALS in a
fake globals namespace with empty globals.
+ Make FORWARDREF and STRING annotations fall back to using VALUE
annotations in the case that neither their own format, nor
VALUE_WITH_FAKE_GLOBALS are supported.
+ gh-138775: Use of python -m with base64 has been fixed to detect input
from a terminal so that it properly notices EOF.
+ gh-98896: Fix a failure in multiprocessing resource_tracker when
SharedMemory names contain colons. Patch by Rani Pinchuk.
+ gh-138425: Fix partial evaluation of annotationlib.ForwardRef objects
which rely on names defined as globals.
+ gh-138151: In annotationlib, improve evaluation of forward references
to nonlocal variables that are not yet defined when the annotations are
initially evaluated.
+ gh-69528: The mode attribute of files opened in the 'wb+' mode is now
'wb+' instead of 'rb+'.
+ gh-137627: Speed up csv.Sniffer.sniff() delimiter detection by up to
1.6x.
+ gh-55531: encodings: Improve normalize_encoding() performance by
implementing the function in C using the private _Py_normalize_encoding
which has been modified to make lowercase conversion optional.
+ gh-136057: Fixed the bug in pdb and bdb where next and step can't go
over the line if a loop exists in the line.
+ gh-133390: Support table, index, trigger, view, column, function, and
schema completion for sqlite3's command-line interface.
+ gh-135307: email: Fix exception in set_content() when encoding text and
max_line_length is set to 0 or None (unlimited).
+ gh-133789: Fix unpickling of pathlib objects that were pickled in
Python 3.13.
+ gh-133601: Remove deprecated typing.no_type_check_decorator().
+ gh-132686: Add parameters inherit_class_doc and fallback_to_class_doc
for inspect.getdoc().
+ gh-131116: inspect.getdoc() now correctly returns an inherited
docstring on cached_property objects if none is given in a subclass.
+ gh-130693: Add support for -nolinestop, and -strictlimits options to
tkinter.Text.search(). Also add the tkinter.Text.search_all() method
for -all and -overlap options.
+ gh-122255: In the linecache module and in the Python implementation of
the warnings module, a DeprecationWarning is issued when mod.__loader__
differs from mod.__spec__.loader (like in the C implementation of the
warnings module).
+ gh-121011: math.log() now supports arbitrary large integer-like
arguments in the same way as arbitrary large integer arguments.
+ gh-119668: Publicly expose and document
importlib.machinery.NamespacePath.
+ gh-102431: Clarify constraints for "logical" arguments in methods of
decimal.Context.
+ gh-81313: Add the math.integer module (PEP 791).
* Core and Builtins
+ gh-141579: Fix sys.activate_stack_trampoline() to properly support the
perf_jit backend. Patch by Pablo Galindo.
+ gh-114203: Skip locking if object is already locked by two-mutex
critical section.
+ gh-141528: Suggest using concurrent.interpreters.Interpreter.close()
instead of the private _interpreters.destroy function when warning
about remaining subinterpreters. Patch by Sergey Miryanov.
+ gh-141367: Specialize CALL_LIST_APPEND instruction only for lists, not
for list subclasses, to avoid unnecessary deopt.
+ gh-141312: Fix the assertion failure in the __setstate__ method of the
range iterator when a non-integer argument is passed.
+ gh-140643: Add support for <GC> and <native> frames to
profiling.sampling output to denote active garbage collection and calls
to native code.
+ gh-140942: Add .cjs to mimetypes to give CommonJS modules a MIME type
of application/node.
+ gh-140479: Update JIT compilation to use LLVM 21 at build time.
+ gh-140939: Fix memory leak when bytearray or bytes is formated with the
%*b format with a large width that results in a MemoryError.
+ gh-140260: Fix struct data race in endian table initialization with
subinterpreters. Patch by Shamil Abdulaev.
+ gh-140530: Fix a reference leak when raise exc from cause fails.
+ gh-90344: Replace io.IncrementalNewlineDecoder with non incremental
newline decoders in codebase where
io.IncrementalNewlineDecoder.decode() was being called once.
+ gh-140373: Correctly emit PY_UNWIND event when generator object is
closed. Patch by Mikhail Efimov.
+ gh-140729: Fix pickling error in the sampling profiler when using
concurrent.futures.ProcessPoolExecutor script can not be properly
pickled and executed in worker processes.
+ gh-131527: Dynamic borrow checking for stackrefs is added to
Py_STACKREF_DEBUG mode. Patch by Mikhail Efimov.
+ gh-140576: Fixed crash in tokenize.generate_tokens() in case of
specific incorrect input. Patch by Mikhail Efimov.
+ gh-140544: Speed up accessing interpreter state by caching it in a
thread local variable. Patch by Kumar Aditya.
+ gh-140551: Fixed crash in dict if dict.clear() is called at the lookup
stage. Patch by Mikhail Efimov and Inada Naoki.
+ gh-140517: Fixed a reference leak when iterating over the result of
map() with strict=True when the input iterables have different lengths.
+ gh-133467: Fix race when updating type.__bases__ that could allow a
read of type.__base__ to observe an inconsistent value on the free
threaded build.
+ gh-140471: Fix potential buffer overflow in ast.AST node initialization
when encountering malformed _fields containing non-str.
+ gh-140443: The logarithm functions (such as math.log10() and
math.log()) may now produce slightly different results for extremely
large integers that cannot be converted to floats without overflow.
These results are generally more accurate, with reduced worst-case
error and a tighter overall error distribution.
+ gh-140431: Fix a crash in Python's garbage collector due to partially
initialized coroutine objects when coroutine origin tracking depth is
enabled (sys.set_coroutine_origin_tracking_depth()).
+ gh-140476: Optimize PySet_Add() for frozenset in free threaded build.
+ gh-140398: Fix memory leaks in readline functions read_init_file(),
read_history_file(), write_history_file(), and append_history_file()
when PySys_Audit() fails.
+ gh-140406: Fix memory leak when an object's __hash__() method returns
an object that isn't an int.
+ gh-140358: Restore elapsed time and unreachable object count in GC
debug output.
+ gh-139109: A new tracing frontend for the JIT compiler has been
implemented.
+ gh-140306: Fix memory leaks in cross-interpreter channel operations and
shared namespace handling.
+ gh-116738: Make _suggestions module thread-safe on the free threaded
build.
+ gh-140301: Fix memory leak of PyConfig in subinterpreters.
+ gh-140257: Fix data race between interpreter_clear() and take_gil() on
eval_breaker during finalization with daemon threads.
+ gh-139951: Fixes a regression in GC performance for a growing heap
composed mostly of small tuples.
+ gh-140253: Wrong placement of a double-star pattern inside a mapping
pattern now throws a specialized syntax error.
+ gh-140104: Fix a bug with exception handling in the JIT.
+ gh-140149: Speed up parsing bytes literals concatenation by using
PyBytesWriter API and a single memory allocation (about 3x faster).
+ gh-140061: Fixing the checking of whether an object is uniquely
referenced to ensure free-threaded compatibility.
+ gh-140080: Fix hang during finalization when attempting to call atexit
handlers under no memory.
+ gh-139871: Update bytearray to use a bytes under the hood as its buffer
and add bytearray.take_bytes() to take it out.
+ gh-140067: Fix memory leak in sub-interpreter creation.
+ gh-139817: Attribute __qualname__ is added to typing.TypeAliasType.
+ gh-135801: Many functions related to compiling or parsing Python code,
such as compile(), ast.parse(), symtable.symtable(), and
importlib.abc.InspectLoader.source_to_code() now allow to specify the
module name. It is needed to unambiguous filter syntax warnings by
module name.
+ gh-139640: ast.parse() no longer emits syntax warnings for
return/break/continue in finally (see PEP 765) - they are only emitted
during compilation.
+ gh-139640: Fix swallowing some syntax warnings in different modules if
they accidentally have the same message and are emitted from the same
line. Fix duplicated warnings in the finally block.
+ gh-139475: Changes in stackref debugging mode when Py_STACKREF_DEBUG is
set. We use the same pattern of refcounting for stackrefs as in
production build.
+ gh-139269: Fix undefined behavior when using unaligned store in JIT's
patch_* functions.
+ gh-138944: Fix SyntaxError message when invalid syntax appears on the
same line as a valid import ... as ... or from ... import ... as ...
statement. Patch by Brian Schubert.
+ gh-138857: Improve SyntaxError message for case keyword placed outside
match body.
+ gh-131253: Support the --enable-pystats build option for the
free-threaded build.
+ gh-136327: Errors when calling functions with invalid values after *
and ** now do not include the function name. Patch by Ilia Solin.
+ gh-134786: If Py_TPFLAGS_MANAGED_DICT and Py_TPFLAGS_MANAGED_WEAKREF
are used, then Py_TPFLAGS_HAVE_GC must be used as well.
* C API
+ gh-116146: Add a new PyImport_CreateModuleFromInitfunc() C-API for
creating a module from a spec and initfunc. Patch by Itamar Oren.
+ gh-141042: Make qNaN in PyFloat_Pack2() and PyFloat_Pack4(), if while
conversion to a narrower precision floating-point format - the
remaining after truncation payload will be zero.
+ gh-141004: Py_MATH_El and Py_MATH_PIl are deprecated.
+ gh-141004: The Py_INFINITY macro is soft deprecated.
+ gh-140556: PEP 793: Add a new entry point for C extension modules,
PyModExport_<modulename>.
+ gh-140487: Fix Py_RETURN_NOTIMPLEMENTED in limited C API 3.11 and
older: dont treat Py_NotImplemented as immortal.
+ gh-140153: Fix Py_REFCNT() definition on limited C API 3.11-3.13.
+ gh-139653: Add PyUnstable_ThreadState_SetStackProtection() and
PyUnstable_ThreadState_ResetStackProtection() functions to set the
stack protection base address and stack protection size of a Python
thread state. Patch by Victor Stinner.
* Build
+ gh-140454: When building the JIT, match the jit_stencils filename
expectations in Makefile with the generator script. This avoid needless
JIT recompilation during make install.
+ gh-140768: Warn when the WASI SDK version doesnt match what's
supported.
+ gh-140513: Generate a clear compilation error when _Py_TAIL_CALL_INTERP
is enabled but either preserve_none or musttail is not supported.
+ gh-140475: Support WASI SDK 25.
+ gh-140239: Check statx availability only on Linux (including Android).
+ gh-137618: PYTHON_FOR_REGEN now requires Python 3.10 to Python 3.15.
- Drop patch CVE-2025-6075-expandvars-perf-degrad.patch, included upstream.
-------------------------------------------------------------------
Thu Nov 13 17:13:03 UTC 2025 - Matej Cepl <mcepl@cepl.eu>

View File

@@ -162,8 +162,8 @@
# _md5.cpython-38m-x86_64-linux-gnu.so
%define dynlib() %{sitedir}/lib-dynload/%{1}.cpython-%{abi_tag}-%{archname}-%{_os}%{?_gnu}%{?armsuffix}.so
Name: %{python_pkg_name}%{psuffix}
Version: 3.15.0~a1
%define tarversion 3.15.0a1
Version: 3.15.0~a3
%define tarversion 3.15.0a3
%define tarname Python-%{tarversion}
Release: 0
Summary: Python 3 Interpreter
@@ -224,9 +224,6 @@ Patch40: fix-test-recursion-limit-15.6.patch
Patch41: bsc1243155-sphinx-non-determinism.patch
# PATCH-FIX-OPENSUSE gh139257-Support-docutils-0.22.patch gh#python/cpython#139257 daniel.garcia@suse.com
Patch42: gh139257-Support-docutils-0.22.patch
# PATCH-FIX-UPSTREAM CVE-2025-6075-expandvars-perf-degrad.patch bsc#1252974 mcepl@suse.com
# Avoid potential quadratic complexity vulnerabilities in path modules
Patch43: CVE-2025-6075-expandvars-perf-degrad.patch
#### Python 3.15 DEVELOPMENT PATCHES
BuildRequires: autoconf-archive
BuildRequires: automake
@@ -272,7 +269,7 @@ BuildRequires: python3-python-docs-theme >= 2022.1
%if %{with experimental_jit}
# needed for experimental_jit
BuildRequires: clang19 llvm19
BuildRequires: clang21 llvm21
BuildRequires: llvm
%endif
@@ -577,7 +574,7 @@ export SUSE_VERSION="0%{?suse_version}"
export SLE_VERSION="0%{?sle_version}"
%if %{with doc}
TODAY_DATE=`date -r %{SOURCE0} "+%%B %%d, %%Y"`
TODAY_DATE=`date -r %{SOURCE0} "+%B %d, %Y"`
# TODO use not date of tarball but date of latest patch
cd Doc
@@ -690,6 +687,8 @@ EXCLUDE="$EXCLUDE test_capi"
# Failing tests on python 3.15
EXCLUDE="$EXCLUDE test_regrtest test_sysconfig"
# Segfaults on 32 bit
EXCLUDE="$EXCLUDE test_profiling"
# Limit virtual memory to avoid spurious failures
if test $(ulimit -v) = unlimited || test $(ulimit -v) -gt 10000000; then
@@ -755,7 +754,7 @@ done
for library in \
array binascii _bisect _bz2 cmath _codecs_* \
_csv _ctypes _decimal fcntl grp \
_hashlib _heapq _hmac _json _lsprof _lzma math mmap \
_hashlib _heapq _hmac _json _lsprof _lzma math mmap _math_integer \
_multibytecodec _multiprocessing _pickle _posixshmem \
_posixsubprocess _queue _random resource select _ssl _socket \
_statistics _struct syslog termios _testbuffer _testimportmultiple \
@@ -1088,6 +1087,7 @@ fi
%{dynlib _lzma}
%{dynlib math}
%{dynlib mmap}
%{dynlib _math_integer}
%{dynlib _multibytecodec}
%{dynlib _multiprocessing}
%{dynlib _pickle}