* Sat Nov 16 2019 arun@gmx.de
- update to version 0.29.14:
* Bugs fixed
+ The generated code failed to initialise the tp_print slot in
CPython 3.8. Patches by Pablo Galindo and Orivej Desh (Github
issues #3171, #3201).
+ ? for bool was missing from the supported NumPy dtypes. Patch by
Max Klein. (Github issue #2675)
+ await was not allowed inside of f-strings. Patch by Dmitro
Getz. (Github issue #2877)
+ Coverage analysis failed for projects where the code resides in
separate source sub-directories. Patch by Antonio
Valentino. (Github issue #1985)
+ An incorrect compiler warning was fixed in automatic C++ string
conversions. Patch by Gerion Entrup. (Github issue #3108)
+ Error reports in the Jupyter notebook showed unhelpful stack
traces. Patch by Matthew Edwards (Github issue #3196).
+ Python.h is now also included explicitly from public header
files. (Github issue #3133).
+ Distutils builds with --parallel did not work when using
Cython's deprecated build_ext command. Patch by Alphadelta14
(Github issue #3187).
* Other changes
+ The PyMemoryView_*() C-API is available in
cpython.memoryview. Patch by Nathan Manville. (Github issue
[#2541])
* Fri Jul 26 2019 mcepl@suse.com
- Update to 0.29.13:
- A reference leak for None was fixed when converting
a memoryview to a Python object. (Github issue #3023)
- The declaration of PyGILState_STATE in cpython.pystate was
unusable. Patch by Kirill Smelkov. (Github issue #2997)
- The declarations in posix.mman were extended. Patches by
Kirill Smelkov. (Github issues #2893, #2894, #3012)
* Sun Jul 21 2019 arun@gmx.de
- update to version 0.29.12:
* Fix compile error in CPython 3.8b2 regarding the PyCode_New()
signature. (Github issue #3031)
* Fix a C compiler warning about a missing int downcast. (Github
issue #3028)
* Fix reported error positions of undefined builtins and
constants. Patch by Orivej Desh. (Github issue #3030)
* A 32 bit issue in the Pythran support was resolved. Patch by Serge
Guelton. (Github issue #3032)
* Sat Jul 06 2019 arun@gmx.de
- update to version 0.29.11:
* Bugs fixed
+ Fix compile error in CPython 3.8b2 regarding the PyCode_New()
signature. Patch by Nick Coghlan. (Github issue #3009)
+ Invalid C code generated for lambda functions in cdef
methods. Patch by Josh Tobin. (Github issue #2967)
+ Support slice handling in newer Pythran versions. Patch by Serge
Guelton. (Github issue #2989)
+ A reference leak in power-of-2 calculation was fixed. Patch by
Sebastian Berg. (Github issue #3022)
+ The search order for include files was changed. Previously it
was include_directories, Cython/Includes, sys.path. Now it is
include_directories, sys.path, Cython/Includes. This was done to
allow third-party *.pxd files to override the ones in
Cython. Original patch by Matti Picus. (Github issue #2905)
+ Setting language_level=2 in a file did not work if
language_level=3 was enabled globally before. Patch by Jeroen
Demeyer. (Github issue #2791)
* Wed Jun 12 2019 tchvatal@suse.com
- Say goodbye to -doc subpackage as the documentation is online
and does not build with latest sphinx releases (even in master
at the moment).
- The testing in -doc spec was disabled anyway and if needed we
will reintroduce it as a multibuild
* Mon Jun 03 2019 mimi.vx@gmail.com
- 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.
* Tue Apr 16 2019 mimi.vx@gmail.com
- 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
* Tue Apr 02 2019 toddrme2178@gmail.com
- Add cython_use_imgmath.patch
The pngmath Sphinx extension has been removed. Use imgmath instead.
See: gh#cython/cython#2818
* Thu Feb 28 2019 mimi.vx@gmail.com
- 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.
* Tue Feb 05 2019 toddrme2178@gmail.com
- Update to 0.29.4
* Division of numeric constants by a runtime value of 0 could fail to raise a
``ZeroDivisionError``. (Github issue #2820)
* Sun Jan 20 2019 arun@gmx.de
- specfile:
* update copyright year
- update to version 0.29.3:
* Some C code for memoryviews was generated in a non-deterministic
order. Patch by Martijn van Steenbergen. (Github issue #2779)
* C89 compatibility was accidentally lost since 0.28. Patches by
gastineau and true-pasky. (Github issues #2778, #2801)
* A C compiler cast warning was resolved. Patch by Michael
Buesch. (Github issue #2774)
* An compilation failure with complex numbers under MSVC++ was
resolved. (Github issue #2797)
* Coverage reporting could fail when modules were moved around after
the build. Patch by Wenjun Si. (Github issue #2776)
- changes from version 0.29.2 :
* The code generated for deduplicated constants leaked some
references. (Github issue #2750)
* The declaration of sigismember() in libc.signal was
corrected. (Github issue #2756)
* Crashes in compiler and test runner were fixed. (Github issue
[#2736], #2755)
* A C compiler warning about an invalid safety check was
resolved. (Github issue #2731)
* Thu Dec 06 2018 ncutler@suse.com
- revert to version 0.28.5 to restore support for subinterpreters
needed by Ceph - stopgap measure until issue can be addressed
upstream (bsc#1118611)
* Sat Dec 01 2018 arun@gmx.de
- update to version 0.29.1:
* Bugs fixed
+ Extensions compiled with MinGW-64 under Windows could
misinterpret integer objects larger than 15 bit and return
incorrect results. (Github issue #2670)
+ Cython no longer requires the source to be writable when copying
its data into a memory view slice. Patch by Andrey
Paramonov. (Github issue #2644)
+ Line tracing of try-statements generated invalid C code. (Github
issue #2274)
+ When using the warn.undeclared directive, Cython's own code
generated warnings that are now fixed. Patch by Nicolas
Pauss. (Github issue #2685)
+ Cython's memoryviews no longer require strides for setting the
shape field but only the PyBUF_ND flag to be set. Patch by John
Kirkham. (Github issue #2716)
+ Some C compiler warnings about unused memoryview code were
fixed. Patch by Ho Cheuk Ting. (Github issue #2588)
+ A C compiler warning about implicit signed/unsigned conversion
was fixed. (Github issue #2729)
+ Assignments to C++ references returned by operator[] could fail
to compile. (Github issue #2671)
+ The power operator and the support for NumPy math functions were
fixed in Pythran expressions. Patch by Serge Guelton. (Github
issues #2702, #2709)
+ Signatures with memory view arguments now show the expected type
when embedded in docstrings. Patch by Matthew Chan and Benjamin
Weigel. (Github issue #2634)
+ Some from ... cimport ... constructs were not correctly
considered when searching modified dependencies in cythonize()
to decide whether to recompile a module. Patch by Kry?tof
Pilná?ek. (Github issue #2638)
+ A struct field type in the cpython.array declarations was
corrected. Patch by John Kirkham. (Github issue #2712)
* Wed Oct 17 2018 arun@gmx.de
- update to version 0.29:
* Features added
+ PEP-489 multi-phase module initialisation has been enabled
again. Module reloads in other subinterpreters raise an
exception to prevent corruption of the static module state.
+ A set of mypy compatible PEP-484 declarations were added for
Cython's C data types to integrate with static analysers in
typed Python code. They are available in the Cython/Shadow.pyi
module and describe the types in the special cython module that
can be used for typing in Python code. Original patch by Julian
Gethmann. (Github issue #1965)
+ Memoryviews are supported in PEP-484/526 style type
declarations. (Github issue #2529)
+ @cython.nogil is supported as a C-function decorator in Python
code. (Github issue #2557)
+ Raising exceptions from nogil code will automatically acquire
the GIL, instead of requiring an explicit with gil block.
+ C++ functions can now be declared as potentially raising both
C++ and Python exceptions, so that Cython can handle both
correctly. (Github issue #2615)
+ cython.inline() supports a direct language_level keyword
argument that was previously only available via a directive.
+ A new language level name 3str was added that mostly corresponds
to language level 3, but keeps unprefixed string literals as
type 'str' in both Py2 and Py3, and the builtin 'str' type
unchanged. This will become the default in the next Cython
release and is meant to help user code a) transition more easily
to this new default and b) migrate to Python 3 source code
semantics without making support for Python 2.x difficult.
+ In CPython 3.6 and later, looking up globals in the module dict
is almost as fast as looking up C globals. (Github issue #2313)
+ For a Python subclass of an extension type, repeated method
calls to non-overridden cpdef methods can avoid the attribute
lookup in Py3.6+, which makes them 4x faster. (Github issue
[#2313])
+ (In-)equality comparisons of objects to integer literals are
faster. (Github issue #2188)
+ Some internal and 1-argument method calls are faster.
+ Modules that cimport many external extension types from other
Cython modules execute less import requests during module
initialisation.
+ Constant tuples and slices are deduplicated and only created
once per module. (Github issue #2292)
+ The coverage plugin considers more C file extensions such as .cc
and .cxx. (Github issue #2266)
+ The cythonize command accepts compile time variable values (as
set by DEF) through the new -E option. Patch by Jerome
Kieffer. (Github issue #2315)
+ pyximport can import from namespace packages. Patch by Prakhar
Goel. (Github issue #2294)
+ Some missing numpy and CPython C-API declarations were
added. Patch by John Kirkham. (Github issues #2523, #2520,
[#2537])
+ Declarations for the pylifecycle C-API functions were added in a
new .pxd file cpython.pylifecycle.
+ The Pythran support was updated to work with the latest Pythran
0.8.7. Original patch by Adrien Guinet. (Github issue #2600)
+ %a is included in the string formatting types that are optimised
into f-strings. In this case, it is also automatically mapped
to %r in Python 2.x.
+ New C macro CYTHON_HEX_VERSION to access Cython's version in the
same style as PY_HEX_VERSION.
+ Constants in libc.math are now declared as const to simplify
their handling.
+ An additional check_size clause was added to the ctypedef class
name specification to allow suppressing warnings when importing
modules with backwards-compatible PyTypeObject size
changes. Patch by Matti Picus. (Github issue #2627)
* Bugs fixed
+ The exception handling in generators and coroutines under
CPython 3.7 was adapted to the newly introduced exception
stack. Users of Cython 0.28 who want to support Python 3.7 are
encouraged to upgrade to 0.29 to avoid potentially incorrect
error reporting and tracebacks. (Github issue #1958)
+ Crash when importing a module under Stackless Python that was
built for CPython. Patch by Anselm Kruis. (Github issue #2534)
+ 2-value slicing of typed sequences failed if the start or stop
index was None. Patch by Christian Gibson. (Github issue #2508)
+ Multiplied string literals lost their factor when they are part
of another constant expression (e.g. 'x' * 10 + 'y' => 'xy').
+ String formatting with the '%' operator didn't call the special
__rmod__() method if the right side is a string subclass that
implements it. (Python issue 28598)
+ The directive language_level=3 did not apply to the first token
in the source file. (Github issue #2230)
+ Overriding cpdef methods did not work in Python subclasses with
slots. Note that this can have a performance impact on calls
from Cython code. (Github issue #1771)
+ Fix declarations of builtin or C types using strings in pure
python mode. (Github issue #2046)
+ Generator expressions and lambdas failed to compile in @cfunc
functions. (Github issue #459)
+ Global names with const types were not excluded from star-import
assignments which could lead to invalid C code. (Github issue
[#2621])
+ Several internal function signatures were fixed that lead to
warnings in gcc-8. (Github issue #2363)
+ The numpy helper functions set_array_base() and get_array_base()
were adapted to the current numpy C-API recommendations. Patch
by Matti Picus. (Github issue #2528)
+ Some NumPy related code was updated to avoid deprecated API
usage. Original patch by jbrockmendel. (Github issue #2559)
+ Several C++ STL declarations were extended and corrected. Patch
by Valentin Valls. (Github issue #2207)
+ C lines of the module init function were unconditionally not
reported in exception stack traces. Patch by Jeroen
Demeyer. (Github issue #2492)
+ When PEP-489 support is enabled, reloading the module overwrote
any static module state. It now raises an exception instead,
given that reloading is not actually supported.
+ Object-returning, C++ exception throwing functions were not
checking that the return value was non-null. Original patch by
Matt Wozniski (Github Issue #2603)
+ The source file encoding detection could get confused if the
c_string_encoding directive appeared within the first two
lines. (Github issue #2632)
+ Cython generated modules no longer emit a warning during import
when the size of the NumPy array type is larger than what was
found at compile time. Instead, this is assumed to be a
backwards compatible change on NumPy side.
* Other changes
+ Cython now emits a warning when no language_level (2, 3 or
'3str') is set explicitly, neither as a cythonize() option nor
as a compiler directive. This is meant to prepare the transition
of the default language level from currently Py2 to Py3, since
that is what most new users will expect these days. The future
default will, however, not enforce unicode literals, because
this has proven a major obstacle in the support for both Python
2.x and 3.x. The next major release is intended to make this
change, so that it will parse all code that does not request a
specific language level as Python 3 code, but with str
literals. The language level 2 will continue to be supported for
an indefinite time.
+ The documentation was restructured, cleaned up and examples are
now tested. The NumPy tutorial was also rewritten to simplify
the running example. Contributed by Gabriel de
Marmiesse. (Github issue #2245)
+ Cython compiles less of its own modules at build time to reduce
the installed package size to about half of its previous
size. This makes the compiler slightly slower, by about 5-7%.
* Sat Aug 11 2018 arun@gmx.de
- update to version 0.28.5:
* The discouraged usage of GCC's attribute optimize("Os") was
replaced by the similar attribute cold to reduce the code impact
of the module init functions. (Github issue #2494)
* A reference leak in Py2.x was fixed when comparing str to unicode
for equality.
* Thu Jul 12 2018 arun@gmx.de
- update to version 0.28.4:
* Bugs fixed
+ Reallowing tp_clear() in a subtype of an @no_gc_clear extension
type generated an invalid C function call to the (non-existent)
base type implementation. (Github issue #2309)
+ Exception catching based on a non-literal (runtime) tuple could
fail to match the exception. (Github issue #2425)
+ Compile fix for CPython 3.7.0a2. (Github issue #2477)
* Sun May 27 2018 arun@gmx.de
- update to version 0.28.3:
* Set iteration was broken in non-CPython since 0.28.
* UnicodeEncodeError in Py2 when %s formatting is optimised for
unicode strings. (Github issue #2276)
* Work around a crash bug in g++ 4.4.x by disabling the size
reduction setting of the module init function in this
version. (Github issue #2235)
* Wed Apr 18 2018 toddrme2178@gmail.com
- 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)
* Mon Mar 19 2018 tchvatal@suse.com
- Version update to 0.28.1:
* 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().
* Sat Mar 17 2018 arun@gmx.de
- update to version 0.28:
* Features added
+ Cdef classes can now multiply inherit from ordinary Python
classes. (The primary base must still be a c class, possibly
object, and the other bases must not be cdef classes.)
+ Type inference is now supported for Pythran compiled NumPy
expressions. Patch by Nils Braun. (Github issue #1954)
+ The const modifier can be applied to memoryview declarations to
allow read-only buffers as input. (Github issues #1605, #1869)
+ C code in the docstring of a cdef extern block is copied
verbatimly into the generated file. Patch by Jeroen
Demeyer. (Github issue #1915)
+ When compiling with gcc, the module init function is now tuned
for small code size instead of whatever compile flags were
provided externally. Cython now also disables some code
intensive optimisations in that function to further reduce the
code size. (Github issue #2102)
+ Decorating an async coroutine with @cython.iterable_coroutine
changes its type at compile time to make it iterable. While this
is not strictly in line with PEP-492, it improves the
interoperability with old-style coroutines that use yield from
instead of await.
+ The IPython magic has preliminary support for
JupyterLab. (Github issue #1775)
+ The new TSS C-API in CPython 3.7 is supported and has been
backported. Patch by Naotoshi Seo. (Github issue #1932)
+ Cython knows the new Py_tss_t type defined in PEP-539 and
automatically initialises variables declared with that type to
Py_tss_NEEDS_INIT, a value which cannot be used outside of
static assignments.
+ The set methods .remove() and .discard() are optimised. Patch by
Antoine Pitrou. (Github issue #2042)
+ dict.pop() is optimised. Original patch by Antoine
Pitrou. (Github issue #2047)
+ Iteration over sets and frozensets is optimised. (Github issue
[#2048])
+ Safe integer loops (< range(2^30)) are automatically optimised
into C loops.
+ alist.extend([a,b,c]) is optimised into sequential list.append()
calls for short literal sequences.
+ Calls to builtin methods that are not specifically optimised
into C-API calls now use a cache that avoids repeated lookups of
the underlying C function. (Github issue #2054)
+ Single argument function calls can avoid the argument tuple
creation in some cases.
+ Some redundant extension type checks are avoided.
+ Formatting C enum values in f-strings is faster, as well as some
other special cases.
+ String formatting with the '%' operator is optimised into
f-strings in simple cases.
+ Subscripting (item access) is faster in some cases.
+ Some bytearray operations have been optimised similar to bytes.
+ Some PEP-484/526 container type declarations are now considered
for loop optimisations.
+ Indexing into memoryview slices with view[i][j] is now optimised
into view[i, j].
+ Python compatible cython.* types can now be mixed with type
declarations in Cython syntax.
+ Name lookups in the module and in classes are faster.
+ Python attribute lookups on extension types without instance
dict are faster.
+ Some missing signals were added to libc/signal.pxd. Patch by
Jeroen Demeyer. (Github issue #1914)
+ The warning about repeated extern declarations is now visible by
default. (Github issue #1874)
+ The exception handling of the function types used by CPython's
type slot functions was corrected to match the de-facto standard
behaviour, so that code that uses them directly benefits from
automatic and correct exception propagation. Patch by Jeroen
Demeyer. (Github issue #1980)
+ Defining the macro CYTHON_NO_PYINIT_EXPORT will prevent the
module init function from being exported as symbol, e.g. when
linking modules statically in an embedding setup. Patch by
AraHaan. (Github issue #1944)
* Bugs fixed
+ If a module name is explicitly provided for an Extension() that
is compiled via cythonize(), it was previously ignored and
replaced by the source file name. It can now be used to override
the target module name, e.g. for compiling prefixed accelerator
modules from Python files. (Github issue #2038)
+ The arguments of the num_threads parameter of parallel sections
were not sufficiently validated and could lead to invalid C
code. (Github issue #1957)
+ Catching exceptions with a non-trivial exception pattern could
call into CPython with a live exception set. This triggered
incorrect behaviour and crashes, especially in CPython 3.7.
+ The signature of the special __richcmp__() method was corrected
to recognise the type of the first argument as self. It was
previously treated as plain object, but CPython actually
guarantees that it always has the correct type. Note: this can
change the semantics of user code that previously relied on self
being untyped.
+ Some Python 3 exceptions were not recognised as builtins when
running Cython under Python 2.
+ Some async helper functions were not defined in the generated C
code when compiling simple async code. (Github issue #2075)
+ Line tracing did not include generators and coroutines. (Github
issue #1949)
+ C++ declarations for unordered_map were corrected. Patch by
Michael Schatzow. (Github issue #1484)
+ Iterator declarations in C++ deque and vector were
corrected. Patch by Alex Huszagh. (Github issue #1870)
+ The const modifiers in the C++ string declarations were
corrected, together with the coercion behaviour of string
literals into C++ strings. (Github issue #2132)
+ Some declaration types in libc.limits were corrected. Patch by
Jeroen Demeyer. (Github issue #2016)
+ @cython.final was not accepted on Python classes with an
@cython.cclass decorator. (Github issue #2040)
+ Cython no longer creates useless and incorrect PyInstanceMethod
wrappers for methods in Python 3. Patch by Jeroen
Demeyer. (Github issue #2105)
+ The builtin bytearray type could not be used as base type of
cdef classes. (Github issue #2106)