(cherry picked from commit 83d1430ee5)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* Remove code that checks Py_TPFLAGS_HAVE_VERSION_TAG
The field is always present in the type struct, as explained
in the added comment.
* Remove Py_TPFLAGS_HAVE_AM_SEND
The flag is not needed, and since it was added in 3.10 it can be removed now.
(cherry picked from commit a4760cc32d)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Both `executescript` methods contain the same docstring typo:
_"Executes a multiple SQL statements at once."_ => _"Executes multiple SQL statements at once."_
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
if it is called with a sequence or set, but not list or tuple.
(cherry picked from commit f572cbf1fa)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Fix incorrect handling of exceptions when interpreting dialect objects in
the csv module. Not clearing exceptions between calls to
PyObject_GetAttrString() causes assertion failures in pydebug mode (or with
assertions enabled).
Add a minimal test that would've caught this (passing None as dialect, or
any object that isn't a csv.Dialect subclass, which the csv module allows
and caters to, even though it is not documented.) In pydebug mode, the test
triggers the assertion failure in the old code.
Contributed-By: T. Wouters [Google]
(cherry picked from commit 0093876328)
Co-authored-by: T. Wouters <thomas@python.org>
Automerge-Triggered-By: GH:gpshead
In debug build failed tee.fromiterable() corrupted the linked list of all GC objects.
(cherry picked from commit f64de53ff0)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* zlib uses an UINT32_MAX sliding window for the output buffer
These funtions have an initial output buffer size parameter:
- zlib.decompress(data, /, wbits=MAX_WBITS, bufsize=DEF_BUF_SIZE)
- zlib.Decompress.flush([length])
If the initial size > UINT32_MAX, use an UINT32_MAX sliding window, instead of clamping to UINT32_MAX.
Speed up when (the initial size == the actual size).
This fixes a memory consumption and copying performance regression in earlier 3.10 beta releases if someone used an output buffer larger than 4GiB with zlib.decompress.
Reviewed-by: Gregory P. Smith
(cherry picked from commit a9a69bb3ea)
Co-authored-by: Ma Lin <animalize@users.noreply.github.com>
It defaults to None and is positional only.
(cherry picked from commit d1ae57027f)
Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
_thread.start_new_thread() no longer calls PyThread_exit_thread()
explicitly at the thread exit, the call was redundant.
On Linux with the glibc, pthread_cancel() loads dynamically the
libgcc_s.so.1 library. dlopen() can fail if there is no more
available file descriptor to open the file. In this case, the process
aborts with the error message:
"libgcc_s.so.1 must be installed for pthread_cancel to work"
pthread_cancel() unwinds back to the thread's wrapping function that
calls the thread entry point.
The unwind function is dynamically loaded from the libgcc_s library
since it is tightly coupled to the C compiler (GCC). The unwinder
depends on DWARF, the compiler generates DWARF, so the unwinder
belongs to the compiler.
Thanks Florian Weimer and Carlos O'Donell for their help on
investigating this issue.
(cherry picked from commit 45a78f906d)
Co-authored-by: Victor Stinner <vstinner@python.org>
* Make functools types immutable
* Multibyte codec types are now immutable
* pyexpat.xmlparser is now immutable
* array.arrayiterator is now immutable
* _thread types are now immutable
* _csv types are now immutable
* _queue.SimpleQueue is now immutable
* mmap.mmap is now immutable
* unicodedata.UCD is now immutable
* sqlite3 types are now immutable
* _lsprof.Profiler is now immutable
* _overlapped.Overlapped is now immutable
* _operator types are now immutable
* winapi__overlapped.Overlapped is now immutable
* _lzma types are now immutable
* _bz2 types are now immutable
* _dbm.dbm and _gdbm.gdbm are now immutable
(cherry picked from commit 00710e6346)
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
The _thread.RLock type now fully implement the GC protocol: add a
traverse function and the Py_TPFLAGS_HAVE_GC flag.
(cherry picked from commit 1cd3d859a4)
Co-authored-by: Victor Stinner <vstinner@python.org>
Signed-off-by: Christian Heimes <christian@python.org>
(cherry picked from commit bf527277d4)
Co-authored-by: Christian Heimes <christian@python.org>
Automerge-Triggered-By: GH:tiran
Allocate and track statement objects in pysqlite_statement_create.
By allocating and tracking creation of statement object in
pysqlite_statement_create(), the caller does not need to worry about GC
syncronization, and eliminates the possibility of getting a badly
created object. All related fault handling is moved to
pysqlite_statement_create().
Co-authored-by: Victor Stinner <vstinner@python.org>.
(cherry picked from commit fffa0f92ad)
Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
This was flagged by a static analyzer, but the logic of why this is NULL on error is hard to follow for humans as well.
(cherry picked from commit bdb56902a3)
Co-authored-by: stratakis <cstratak@redhat.com>
* _testcapi.heapgctype: implement a traverse function since the type
is defined with Py_TPFLAGS_HAVE_GC.
* _decimal: PyDecSignalDictMixin_Type is no longer defined with
Py_TPFLAGS_HAVE_GC since it has no traverse function.
(cherry picked from commit 142e5c5445)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
