* Features added
- More warnings were added to help users migrate and avoid bugs.
(Github issue #5650)
- A warning-like category for performance hints was added that
bypasses -Werror. (Github issue #5673)
- FastGIL now uses standard thread_local in C++. (Github issue
#5640)
- reference_wrapper was added to libcpp.functional. Patch by Vyas
Ramasubramani. (Github issue #5671)
- The cythonize command now supports the --cplus option known from
the cython command. (Github issue #5736)
* Bug fixed
- Performance regressions where the GIL was needlessly acquired
were fixed. (Github issues #5670, #5700)
- A reference leak for exceptions in Python 3.12 was resolved.
Patch by Eric Johnson. (Github issue #5724)
- fastcall calls with keyword arguments generated incorrect C
code. (Github issue #5665)
- Assigning the type converted result of a conditional (if-else)
expression to int or bool variables could lead to incorrect C
code. (Github issue #5731)
- Early (unlikely) failures in Python function wrappers no longer
set a traceback in order to simplify the C code flow. Being
mostly memory allocation errors, they probably would never have
created a traceback anyway. (Github issue #5681)
- Relative cimports from packages with __init__.py files could
fail. (Github issue #5715)
- Several issues with the Limited API support were resolved.
(Github issues #5641, #5648, #5689)
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=181
- The complete list is seriously long, so I would relegate you
to https://github.com/cython/cython/blob/master/CHANGES.rst
- The implemented PEPs are:
- PEP-3131: Supporting Non-ASCII Identifiers
- PEP-479: generator_stop (enabled by default for language_level=3)
- PEP-487: Simpler customisation of class creation
- PEP-563: Postponed Evaluation of Annotations
- PEP-570: Positional-Only Parameters
- PEP-572: Assignment Expressions (a.k.a. the walrus operator :=)
- PEP-590: Vectorcall protocol
- PEP-614: Relaxing Grammar Restrictions On Decorators
- Cython supports all released versions of Python from 2.7 to
3.11 (and some experimental parts of 3.12) inclusive.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=176
* A garbage collection enabled subtype of a non-GC extension
type could call into the deallocation function of the
super type with GC tracking enabled. This could lead
to crashes during deallocation if GC was triggered on the
type at the same time.
* Some C compile failures and crashes in CPython 3.12 were
resolved.
* ``except + nogil`` was syntactically not allowed.
* ``except +nogil`` (i.e. defining a C++ exception handling
function called ``nogil``) is now disallowed to prevent typos.
* A C compile failure in PyPy 3.10 was resolved.
* Cython modules now use PEP-489 multi-phase init by default in
PyPy 3.9 and later.
* API header files generated by different Cython versions can
now be included in the same C file.
* Function signatures containing a type like `tuple[()]` could
not be printed.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=171
* A refence leak of the for-loop list/tuple iterable was
resolved if the for-loop's ``else:`` branch executes
a ``break`` for an outer loop.
* Some C compile failures in CPython 3.12 were resolved.
* Some old usages of the deprecated Python ``imp`` module were
replaced with ``importlib``.
* Patch by Matúš Valo. (Github issue :issue:`5300`)
* Some issues with ``depfile`` generation were resolved.
* Patches by Eli Schwartz. (Github issues :issue:`5279`,
:issue:`5291`)
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=167
* The ``cythonize`` and ``cython`` commands have a new option ``-M`` /
``--depfile`` to generate ``.dep`` dependency files for the
compilation unit. This can be used by external build tools to
track these dependencies.
* ``const`` fused types could not be used with memory views.
* ``wstr`` usage was removed in Python 3.12 and later (PEP-623).
* A type check assertion for Cython functions failed in debug Python
builds.
* Fixed various compiler warnings.
* Fixed error when calculating complex powers of negative numbers.
* Corrected a small mis-formatting of exception messages on Python 2.
* The ``PyUnicode_AsUTF8AndSize()`` C-API function was missing from the
CPython declarations.
* A performance problem in the compiler was resolved when nesting
conditional expressions.
* Test suite problems with recent NumPy and CPython versions were
resolved.
* Other changes
* The undocumented, untested and apparently useless syntax
``from somemodule cimport class/struct/union somename`` was deprecated
in anticipation of its removal in Cython 3. The type
modifier is not needed here and a plain ``cimport`` of the name will do.
* Properly disable generation of descriptor docstrings on PyPy since they
cause crashes.
It was previously disabled, but only accidentally via a typo.
* The ``cpow`` directive of Cython 3.0 is available as a no-op.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=165
- update to 0.29.30:
* Avoid acquiring the GIL at the end of nogil functions. This change
was backported in order to avoid generating wrong C code that
would trigger C compiler warnings with tracing support enabled.
* Function definitions in finally: clauses were not correctly generated.
* A case where C-API functions could be called with a live exception
set was fixed.
* Cython now correctly generates Python methods for both the provided
regular and reversed special numeric methods of extension types.
* The C union type in pure Python mode mishandled some field names.
OBS-URL: https://build.opensuse.org/request/show/977894
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=159
* Due to backwards incompatible changes in CPython 3.11a4, the feature flags
``CYTHON_FAST_THREAD_STATE`` and ``CYTHON_USE_EXC_INFO_STACK`` are now disabled
in Python 3.11 and later. They are enabled again in Cython 3.0.
Patch by David Woods. (Github issue #4610)
* A C compiler warning in older PyPy versions was resolved.
Patch by Matti Picus. (Github issue #4236)
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=157
- update to 0.29.27:
* The ``cythonize`` command has a new option ``-M`` to generate ``.dep`` dependency
files for the compilation unit. This can be used by external build tools to track
these dependencies.
* Calls to ``range()`` with more than three arguments did not fail.
* Some C compiler warnings about missing type struct initialisers in Py3.10 were resolved.
* Cython no longer warns about using OpenMP 3.0 features since they are now
considered generally available.
OBS-URL: https://build.opensuse.org/request/show/950217
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=154
* Several incompatibilities with CPython 3.11 were resolved.
* Some C compiler warnings were resolved.
* C++ ``std::move()`` should only be used automatically in MSVC versions that support it.
* The ``Py_hash_t`` type failed to accept arbitrary "index" values.
* Avoid copying unaligned 16-bit values since some platforms require them to be aligned.
Use memcpy() instead to let the C compiler decide how to do it.
* Cython crashed on invalid truthiness tests on C++ types without ``operator bool``.
* The declaration of ``PyUnicode_CompareWithASCIIString()`` in ``cpython.unicode`` was incorrect.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=152
- Update to 0.29.24:
* Inline functions in pxd files that used memory views could lead to invalid
C code if the module that imported from them does not use memory views.
* Several declarations in ``libcpp.string`` were added and corrected.
* Pickling unbound Cython compiled methods failed.
* The tracing code was adapted to work with CPython 3.10.
* The optimised ``in`` operator failed on unicode strings in Py3.9 and later
that were constructed from an external ``wchar_t`` source.
Also, related C compiler warnings about deprecated C-API usage were resolved.
* Some compiler crashes were resolved.
* An incorrect warning about 'unused' generator expressions was removed.
* The attributes ``gen.gi_frame`` and ``coro.cr_frame`` of Cython compiled
generators and coroutines now return an actual frame object for introspection,
instead of ``None``.
- Drop cython_use_imgmath.patch
OBS-URL: https://build.opensuse.org/request/show/906249
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=151
* Some problems with Python 3.10 were resolved.
Patches by Victor Stinner and David Woods. (Github issues #4046, #4100)
* An incorrect "optimisation" was removed that allowed changes to a keyword
dict to leak into keyword arguments passed into a function.
Patch by Peng Weikang. (Github issue #3227)
* Multiplied str constants could end up as bytes constants with language_level=2.
Patch by Alphadelta14 and David Woods. (Github issue #3951)
* ``PY_SSIZE_T_CLEAN`` does not get defined any more if it is already defined.
Patch by Andrew Jones. (Github issue #4104)
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=149
- Update to 0.29.22
* Some declarations were added to the provided pxd includes.
Patches by Zackery Spytz and John Kirkham.
(Github issues #3811, #3882, #3899, #3901)
* A crash when calling certain functions in Py3.9 and later was resolved.
(Github issue #3917)
* ``const`` memory views of structs failed to compile.
(Github issue #2251)
* ``const`` template declarations could not be nested.
Patch by Ashwin Srinath. (Github issue #1355)
* The declarations in the ``cpython.pycapsule`` module were missing their
``const`` modifiers and generated incorrect C code.
Patch by Warren Weckesser. (Github issue #3964)
* Casts to memory views failed for fused dtypes.
Patch by David Woods. (Github issue #3881)
* ``repr()`` was assumed to return ``str`` instead of ``unicode``
with ``language_level=3``
* Calling ``cpdef`` functions from cimported modules crashed the compiler.
Patch by David Woods. (Github issue #4000)
* Cython no longer validates the ABI size of the NumPy classes
it compiled against.
* A C compiler warning about enum value casting was resolved in GCC.
(Github issue #2749)
* Coverage reporting in the annotated HTML file failed in Py3.9.
Patch by Nick Pope. (Github issue #3865)
* The embedding code now reports Python errors as exit status.
* Long type declarations could lead to (harmless) random changes in the
C file when used in auto-generated Python wrappers or pickled classes.
OBS-URL: https://build.opensuse.org/request/show/874489
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=147
* Fix a regression in 0.29.20 where __div__ failed to be found in extension types
* Fix a regression in 0.29.20 where a call inside of a finally clause could
fail to compile
* Zero-sized buffers could fail to validate as C/Fortran-contiguous.
* exec() did not allow recent Python syntax features in Py3.8+
due to https://bugs.python.org/issue35975
* Binding staticmethods of Cython functions were not behaving like
Python methods in Py3
* Pythran calls to NumPy methods no longer generate useless method lookup code.
* The PyUnicode_GET_LENGTH() macro was missing from the cpython.* declarations
* The deprecated PyUnicode_*() C-API functions are no longer used, except
for Unicode strings that contain lone surrogates. Unicode strings that
contain non-BMP characters or surrogate pairs now generate different C
code on 16-bit Python 2.x Unicode deployments (such as MS-Windows).
Generating the C code on Python 3.x is recommended in this case
* Some template parameters were missing from the C++ std::unordered_map declaration
* Several internal code generation issues regarding temporary variables were resolved
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=145
- Update to 0.29.20
* Nested try-except statements with multiple return statements
could crash due to incorrect deletion of the except as target variable.
* The @classmethod decorator no longer rejects unknown input from other decorators.
* Fused types could leak into unrelated usages. Patch by David Woods.
* Now uses Py_SET_SIZE() and Py_SET_REFCNT() in Py3.9+ to avoid
low-level write access to these object field
* The built-in abs() function could lead to undefined behaviour when used on
the negative-most value of a signed C integer type
* Usages of sizeof() and typeid() on uninitialised variables no longer produce a warning
* The C++ typeid() function was allowed in C mode
* The error position reported for errors found in f-strings was misleading
* The new c_api_binop_methods directive was added for forward compatibility,
but can only be set to True (the current default value). It can be disabled in Cython 3.0
OBS-URL: https://build.opensuse.org/request/show/813392
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=143
- Update to 0.29.19
* Exception position reporting could run into race conditions on threaded code.
It now uses function-local variables again.
* Error handling early in the module init code could lead to a crash.
* Error handling in cython.array creation was improved to avoid calling C-API
functions with an error held.
* A memory corruption was fixed when garbage collection was triggered during
calls to PyType_Ready() of extension type subclasses. (Github issue #3603)
* Memory view slicing generated unused error handling code which could negatively
impact the C compiler optimisations for parallel OpenMP code etc.
Also, it is now helped by static branch hints. (Github issue #2987)
* Cython's built-in OpenMP functions were not translated inside of call arguments.
Original patch by Celelibi and David Woods. (Github issue #3594)
* Complex buffer item types of structs of arrays could fail to validate.
* Decorators were not allowed on nested async def functions.
* C-tuples could use invalid C struct casting. Patch by MegaIng.
* Optimised %d string formatting into f-strings failed on float values.
* Optimised aligned string formatting (%05s, %-5s) failed.
* Three missing timedelta access macros were added in cpython.datetime.
* The signature of the NumPy C-API function PyArray_SearchSorted() was fixed
OBS-URL: https://build.opensuse.org/request/show/808014
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=141
- update to 0.29.16
* Temporary internal variables in nested prange loops could leak into other
threads. Patch by Frank Schlimbach. (Github issue #3348)
* Default arguments on fused functions could crash.
Patch by David Woods. (Github issue #3370)
* C-tuples declared in ``.pxd`` files could generate incomplete C code.
Patch by Kirk Meyer. (Github issue #1427)
* Fused functions were not always detected and optimised as Cython
implemented functions.
Patch by David Woods. (Github issue #3384)
* Valid Python object concatenation of (iterable) strings to non-strings
could fail with an exception.
Patch by David Woods. (Github issue #3433)
* Using C functions as temporary values lead to invalid C code.
Original patch by David Woods. (Github issue #3418)
* Fix an unhandled C++ exception in comparisons.
Patch by David Woods. (Github issue #3361)
* Fix deprecated import of "imp" module.
Patch by Matti Picus. (Github issue #3350)
* Fix compatibility with Pythran 0.9.6 and later.
Patch by Serge Guelton. (Github issue #3308)
* The ``_Py_PyAtExit()`` function in ``cpython.pylifecycle`` was misdeclared.
Patch by Zackery Spytz. (Github issue #3382)
* Several missing declarations in ``cpython.*`` were added.
Patches by Zackery Spytz. (Github issue #3452, #3421, #3411, #3402)
* A declaration for ``libc.math.fpclassify()`` was added.
Patch by Zackery Spytz. (Github issue #2514)
* Avoid "undeclared" warning about automatically generated pickle methods.
Patch by David Woods. (Github issue #3353)
* Avoid C compiler warning about unreachable code in ``prange()``.
OBS-URL: https://build.opensuse.org/request/show/794809
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=137
* Crash when returning a temporary Python object from an async-def function.
* Crash when using **kwargs in generators.
* Double reference free in __class__ cell handling for super() calls.
* Compile error when using *args as Python class bases.
* Fixed C name collision in the auto-pickle code
* Deprecated import failed in Python 3.9
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=135
* Fix compile errors in CPython 3.8b1 due to the new "tp_vectorcall" slots.
* Remove an incorrect cast when using true-division in C++ operations.
* C compile errors with CPython 3.8 were resolved.
* Python tuple constants that compare equal but have different item types
could incorrectly be merged into a single constant.
* Non-ASCII characters in unprefixed strings could crash the compiler
when used with language level 3str
* Starred expressions in %-formatting tuples could fail to compile for unicode strings
* Passing Python class references through cython.inline() was broken.
- update to 0.29.10
* Fix compile errors in CPython 3.8b1 due to the new "tp_vectorcall" slots.
* Remove an incorrect cast when using true-division in C++ operations.
* C compile errors with CPython 3.8 were resolved.
* Python tuple constants that compare equal but have different item types
could incorrectly be merged into a single constant.
* Non-ASCII characters in unprefixed strings could crash the compiler
when used with language level 3str
* Starred expressions in %-formatting tuples could fail to compile for unicode strings
* Passing Python class references through cython.inline() was broken.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=126
* Crash when the shared Cython config module gets unloaded and another
Cython module reports an exceptions. Cython now makes sure it keeps
an owned reference to the module
* Resolved a C89 compilation problem when enabling the fast-gil sharing feature.
* Coverage reporting did not include the signature line of cdef functions
* Casting a GIL-requiring function into a nogil function now issues a warning
* Generators and coroutines were missing their return type annotation
- update to 0.29.7
* Crash when the shared Cython config module gets unloaded and another
Cython module reports an exceptions. Cython now makes sure it keeps
an owned reference to the module
* Resolved a C89 compilation problem when enabling the fast-gil sharing feature.
* Coverage reporting did not include the signature line of cdef functions
* Casting a GIL-requiring function into a nogil function now issues a warning
* Generators and coroutines were missing their return type annotation
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=124
* Fix a crash when accessing the __kwdefaults__ special attribute of fused functions.
* Fix the parsing of buffer format strings that contain numeric sizes, which
could lead to incorrect input rejections.
* Avoid a C #pragma in old gcc versions that was only added in GCC 4.6.
* Auto-encoding of Unicode strings to UTF-8 C/C++ strings failed in Python 3,
even though the default encoding there is UTF-8.
* Crash when defining a Python subclass of an extension type and repeatedly
calling a cpdef method on it.
* Compiler crash when prange() loops appear inside of with-statements.
* Some C compiler warnings were resolved.
* Python conversion of C++ enums failed in 0.29.
- update to 0.29.6
* Fix a crash when accessing the __kwdefaults__ special attribute of fused functions.
* Fix the parsing of buffer format strings that contain numeric sizes, which
could lead to incorrect input rejections.
* Avoid a C #pragma in old gcc versions that was only added in GCC 4.6.
* Auto-encoding of Unicode strings to UTF-8 C/C++ strings failed in Python 3,
even though the default encoding there is UTF-8.
* Crash when defining a Python subclass of an extension type and repeatedly
calling a cpdef method on it.
* Compiler crash when prange() loops appear inside of with-statements.
* Some C compiler warnings were resolved.
* Python conversion of C++ enums failed in 0.29.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=120
- Version update to 0.28.2
+ Features added
* ``abs()`` is faster for Python long objects.
* The C++11 methods ``front()`` and ``end()`` were added to the declaration of
``libcpp.string``. Patch by Alex Huszagh. (Github issue #2123)
* The C++11 methods ``reserve()`` and ``bucket_count()`` are declared for
``std::unordered_map``. Patch by Valentin Valls. (Github issue #2168)
+ Bugs fixed
* The copy of a read-only memoryview was considered read-only as well, whereas
a common reason to copy a read-only view is to make it writable. The result
of the copying is now a writable buffer by default.
(Github issue #2134)
* The ``switch`` statement generation failed to apply recursively to the body of
converted if-statements.
* ``NULL`` was sometimes rejected as exception return value when the returned
type is a fused pointer type.
Patch by Callie LeFave. (Github issue #2177)
* Fixed compatibility with PyPy 5.11.
Patch by Matti Picus. (Github issue #2165)
+ Other changes
* The NumPy tutorial was rewritten to use memoryviews instead of the older
buffer declaration syntax.
Contributed by Gabriel de Marmiesse. (Github issue #2162)
- Version update to 0.28.2
+ Features added
* ``abs()`` is faster for Python long objects.
* The C++11 methods ``front()`` and ``end()`` were added to the declaration of
``libcpp.string``. Patch by Alex Huszagh. (Github issue #2123)
* The C++11 methods ``reserve()`` and ``bucket_count()`` are declared for
``std::unordered_map``. Patch by Valentin Valls. (Github issue #2168)
+ Bugs fixed
* The copy of a read-only memoryview was considered read-only as well, whereas
a common reason to copy a read-only view is to make it writable. The result
of the copying is now a writable buffer by default.
(Github issue #2134)
* The ``switch`` statement generation failed to apply recursively to the body of
converted if-statements.
* ``NULL`` was sometimes rejected as exception return value when the returned
type is a fused pointer type.
Patch by Callie LeFave. (Github issue #2177)
* Fixed compatibility with PyPy 5.11.
Patch by Matti Picus. (Github issue #2165)
+ Other changes
* The NumPy tutorial was rewritten to use memoryviews instead of the older
buffer declaration syntax.
Contributed by Gabriel de Marmiesse. (Github issue #2162)
OBS-URL: https://build.opensuse.org/request/show/598789
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=102
* PyFrozenSet_New() was accidentally used in PyPy where it is lacking
from the C-API.
* Assignment between some C++ templated types were incorrectly rejected
when the templates mix const with ctypedef. (Github issue #2148)
* Undeclared C++ no-args constructors in subclasses could make the
compilation fail if the base class constructor was declared without
nogil. (Github issue #2157)
* Bytes %-formatting inferred basestring (bytes or unicode) as result type
in some cases where bytes would have been safe to infer. (Github issue #2153)
* None was accidentally disallowed as typed return value of dict.pop().
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Cython?expand=0&rev=98
