* 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)
Version: 0.23.4-2.1
* Mon Feb 01 2016 toddrme2178@gmail.com
- update to version 0.23.4:
* Memory leak when calling Python functions in PyPy.
* Compilation problem with MSVC in C99-ish mode.
* Warning about unused values in a helper macro.
- update to version 0.23.3:
* Invalid C code for some builtin methods. This fixes ticket 856
again.
* Incorrect C code in helper functions for PyLong conversion and
string decoding. This fixes ticket 863, ticket 864 and ticket
865. Original patch by Nikolaus Rath.
* Large folded or inserted integer constants could use too small C
integer types and thus trigger a value wrap-around.
* The coroutine and generator types of Cython now also register
directly with the Coroutine and Generator ABCs in the
backports_abc module if it can be imported. This fixes ticket 870.
- update to version 0.23.2:
* Compiler crash when analysing some optimised expressions.
* Coverage plugin was adapted to coverage.py 4.0 beta 2.
* C++ destructor calls could fail when '&' operator is overwritten.
* Incorrect C literal generation for large integers in compile-time
evaluated DEF expressions and constant folded expressions.
* Byte string constants could end up as Unicode strings when
originating from compile-time evaluated DEF expressions.
* Invalid C code when caching known builtin methods. This fixes
ticket 860.
* ino_t in posix.types was not declared as unsigned.
* Declarations in libcpp/memory.pxd were missing operator!(). Patch
by Leo Razoumov.
* Static cdef methods can now be declared in .pxd files.
- update to version 0.23.1:
* Invalid C code for generators. This fixes ticket 858.
* Invalid C code for some builtin methods. This fixes ticket 856.
* Invalid C code for unused local buffer variables. This fixes
ticket 154.
* Test failures on 32bit systems. This fixes ticket 857.
* Code that uses "from xyz import *" and global C struct/union/array
variables could fail to compile due to missing helper
functions. This fixes ticket 851.
* Misnamed PEP 492 coroutine property cr_yieldfrom renamed to
cr_await to match CPython.
* Missing deallocation code for C++ object attributes in certain
extension class hierarchies.
* Crash when async coroutine was not awaited.
* Compiler crash on yield in signature annotations and default
argument values. Both are forbidden now.
* Compiler crash on certain constructs in finally clauses.
* Cython failed to build when CPython's pgen is installed.
- update to version 0.23:
* Features added
+ PEP 492 (async/await) was implemented. See
https://www.python.org/dev/peps/pep-0492/
+ PEP 448 (Additional Unpacking Generalizations) was
implemented. See https://www.python.org/dev/peps/pep-0448/
+ Support for coverage.py 4.0+ can be enabled by adding the plugin
"Cython.Coverage" to the ".coveragerc" config file.
+ Annotated HTML source pages can integrate (XML) coverage
reports.
+ Tracing is supported in nogil functions/sections and module init
code.
+ When generators are used in a Cython module and the module
imports the modules "inspect" and/or "asyncio", Cython enables
interoperability by patching these modules during the import to
recognise Cython's internal generator and coroutine types. This
can be disabled by C compiling the module with "-D
CYTHON_PATCH_ASYNCIO=0" or "-D CYTHON_PATCH_INSPECT=0"
+ When generators or coroutines are used in a Cython module, their
types are registered with the Generator and Coroutine ABCs in
the collections or collections.abc stdlib module at import time
to enable interoperability with code that needs to detect and
process Python generators/coroutines. These ABCs were added in
CPython 3.5 and are available for older Python versions through
the backports_abc module on PyPI. See
https://bugs.python.org/issue24018
+ Adding/subtracting/dividing/modulus and equality comparisons
with constant Python floats and small integers are faster.
+ Binary and/or/xor/rshift operations with small constant Python
integers are faster.
+ When called on generator expressions, the builtins all(), any(),
dict(), list(), set(), sorted() and unicode.join() avoid the
generator iteration overhead by inlining a part of their
functionality into the for-loop.
+ Keyword argument dicts are no longer copied on function entry
when they are not being used or only passed through to other
function calls (e.g. in wrapper functions).
+ The PyTypeObject declaration in cpython.object was extended.
+ The builtin type type is now declared as PyTypeObject in source,
allowing for extern functions taking type parameters to have the
correct C signatures. Note that this might break code that uses
type just for passing around Python types in typed
variables. Removing the type declaration provides a backwards
compatible fix.
+ wraparound() and boundscheck() are available as no-ops in pure
Python mode.
+ Const iterators were added to the provided C++ STL declarations.
+ Smart pointers were added to the provided C++ STL
declarations. Patch by Daniel Filonik.
+ NULL is allowed as default argument when embedding
signatures. This fixes ticket 843.
+ When compiling with --embed, the internal module name is changed
to __main__ to allow arbitrary program names, including those
that would be invalid for modules. Note that this prevents reuse
of the generated C code as an importable module.
+ External C++ classes that overload the assignment operator can
be used. Patch by Ian Henriksen.
+ Support operator bool() for C++ classes so they can be used in
if statements.
* Bugs fixed
+ Calling "yield from" from Python on a Cython generator that
returned a value triggered a crash in CPython. This is now being
worked around. See https://bugs.python.org/issue23996
+ Language level 3 did not enable true division (a.k.a. float
division) for integer operands.
+ Functions with fused argument types that included a generic
'object' fallback could end up using that fallback also for
other explicitly listed object types.
+ Relative cimports could accidentally fall back to trying an
absolute cimport on failure.
+ The result of calling a C struct constructor no longer requires
an intermediate assignment when coercing to a Python dict.
+ C++ exception declarations with mapping functions could fail to
compile when pre-declared in .pxd files.
+ cpdef void methods are now permitted.
+ abs(cint) could fail to compile in MSVC and used sub-optimal
code in C++. Patch by David Vierra, original patch by Michael
Enßlin.
+ Buffer index calculations using index variables with small C
integer types could overflow for large buffer sizes. Original
patch by David Vierra.
+ C unions use a saner way to coerce from and to Python dicts.
+ When compiling a module foo.pyx, the directories in sys.path are
no longer searched when looking for foo.pxd. Patch by Jeroen
Demeyer.
+ Memory leaks in the embedding main function were fixed. Original
patch by Michael Enßlin.
+ Some complex Python expressions could fail to compile inside of
finally clauses.
+ Unprefixed 'str' literals were not supported as C varargs
arguments.
+ Fixed type errors in conversion enum types to/from Python. Note
that this imposes stricter correctness requirements on enum
declarations.
* Other changes
+ Changed mangling scheme in header files generated by cdef api
declarations.
+ Installation under CPython 3.3+ no longer requires a pass of the
2to3 tool. This also makes it possible to run Cython in Python
3.3+ from a source checkout without installing it first. Patch
by Petr Viktorin.
+ jedi-typer.py (in Tools/) was extended and renamed to
jedityper.py (to make it importable) and now works with and
requires Jedi 0.9. Patch by Tzer-jen Wei.
* Thu Jan 28 2016 rguenther@suse.com
- Add python-Cython-c++11.patch to fix complex math testcase compile
with GCC 6 defaulting to C++14. (bnc#963974)
* Wed Aug 26 2015 ted.nokonechny@uregina.ca
- "mangle" tests/run/cpdef_extern_func.pyx to allow package to build
for SLE_11_SP3 and SLE_11_SP4.
* cpdef const char* strchr(const char *haystack, int needle);
does not seem to match any from /usr/include/string.h
and fails for cpp tests via python runtests.py -vv
* cpdef_extern_func.pyx was not present in 0.21.1
* Wed Aug 19 2015 bwiedemann@suse.com
- Require python-devel for Python.h (bnc#942385)
* Wed Jul 29 2015 toddrme2178@gmail.com
- Remove unneeded numpy dependency to avoid dependency loop.
- create dummy alternative to avoid 13.1's post-build-check bug
- specfile:
* fixing update_alternatives
* Fri Jul 10 2015 termim@gmail.com
- Update to 0.22.1:
Bugs fixed
* Crash when returning values on generator termination.
* In some cases, exceptions raised during internal isinstance()
checks were not propagated.
* Runtime reported file paths of source files (e.g for profiling
and tracing) are now relative to the build root directory instead
of the main source file.
* Tracing exception handling code could enter the trace function with an
active exception set.
* The internal generator function type was not shared across modules.
* Comparisons of (inferred) ctuples failed to compile.
* Closures inside of cdef functions returning ``void`` failed to compile.
* Using ``const`` C++ references in intermediate parts of longer
expressions could fail to compile.
* C++ exception declarations with mapping functions could fail to compile
when pre-declared in .pxd files.
* C++ compilation could fail with an ambiguity error in recent MacOS-X
Xcode versions.
* C compilation could fail in pypy3.
* Fixed a memory leak in the compiler when compiling multiple modules.
* When compiling multiple modules, external library dependencies could
leak into later compiler runs. Fix by Jeroen Demeyer. This fixes
ticket 845.
- removed patch fix-32bit.patch as applied upstream
* Wed Apr 22 2015 mcihar@suse.cz
- Use Source URL from cython.org
* Wed Apr 22 2015 mcihar@suse.cz
- Add python-numpy as BuildRequires to have more complete test coverage
* Wed Apr 22 2015 mcihar@suse.cz
- Fix doctests in 32-bit environment (fix-32bit.patch)
* Wed Apr 22 2015 mcihar@suse.cz
- Update to 0.22:
Features added
* C functions can coerce to Python functions, which allows passing them
around as callable objects.
* C arrays can be assigned by value and auto-coerce from Python iterables
and to Python lists (and tuples).
* Extern C functions can now be declared as cpdef to export them to
the module's Python namespace. Extern C functions in pxd files export
their values to their own module, iff it exists.
* Anonymous C tuple types can be declared as (ctype1, ctype2, ...).
* PEP 479: turn accidental StopIteration exceptions that exit generators
into a RuntimeError, activated with future import "generator_stop".
See http://legacy.python.org/dev/peps/pep-0479/
* Looping over ``reversed(range())`` is optimised in the same way as
``range()``. Patch by Favian Contreras.
Bugs fixed
* Mismatching 'except' declarations on signatures in .pxd and .pyx files failed
to produce a compile error.
* Failure to find any files for the path pattern(s) passed into ``cythonize()``
is now an error to more easily detect accidental typos.
* The ``logaddexp`` family of functions in ``numpy.math`` now has correct
declarations.
* In Py2.6/7 and Py3.2, simple Cython memory views could accidentally be
interpreted as non-contiguous by CPython, which could trigger a CPython
bug when copying data from them, thus leading to data corruption.
See CPython issues 12834 and 23349.
Other changes
* Preliminary support for defining the Cython language with a formal grammar.
To try parsing your files against this grammar, use the --formal_grammar directive.
Experimental.
* ``_`` is no longer considered a cacheable builtin as it could interfere with
gettext.
* Cythonize-computed metadata now cached in the generated C files.
* Thu Feb 05 2015 hpj@urpla.net
- fix update-alternatives handling in a distribution backwards compatible way
* Fri Jan 09 2015 dimstar@opensuse.org
- Re-enable test-suite.
- Add gcc-c++ BuildRequires: needed for the test-suite to be able
to pass.
* Thu Jan 08 2015 dimstar@opensuse.org
- Fix usage of update-alternatives.
* Thu Dec 18 2014 p.drouand@gmail.com
- Improve update-alternatives.
- Remove Cython-fix-version-detection.patch
(got fixed upstream)
- update to version 0.21.1:
* Features added
- New cythonize option -a to generate the annotated HTML source view.
- Missing C-API declarations in cpython.unicode were added.
- Passing language='c++' into cythonize() globally enables C++ mode
for all modules that were not passed as Extension objects
(i.e. only source files and file patterns).
- Py_hash_t is a known type (used in CPython for hash values).
- PySlice_*() C-API functions are available from the cpython.slice module.
- Allow arrays of C++ classes.
* Bugs fixed
- Reference leak for non-simple Python expressions in boolean and/or expressions.
- To fix a name collision and to reflect availability on host
platforms, standard C declarations [ clock(), time(), struct tm
and tm* functions ] were moved from posix/time.pxd to a new
libc/time.pxd. Patch by Charles Blake.
- Rerunning unmodified modules in IPython's cython support
failed. Patch by Matthias Bussonier.
- Casting C++ std::string to Python byte strings failed when
auto-decoding was enabled.
- Fatal exceptions in global module init code could lead to
crashes if the already created module was used later on
(e.g. through a stale reference in sys.modules or elsewhere).
- cythonize.py script was not installed on MS-Windows.
* Other changes
- Compilation no longer fails hard when unknown compilation
options are passed. Instead, it raises a warning and ignores
them (as it did silently before 0.21). This will be changed back
to an error in a future release.
* Sun Nov 09 2014 Led <ledest@gmail.com>
- fix bashisms in pre script
* Fri Sep 12 2014 toddrme2178@gmail.com
- Add Cython-fix-version-detection.patch
This is a patch from upstream that restores version information
whose removal is preventing several packages from correctly
detecting Cython's presence. It is already merged upstream and
so should be in the next release.
Note that despite what upstream says,
python-tables/python3-tables is NOT the only package affected by
this, which is why the patch is going here instead of
python-tables/python3-tables.
python-bcolz/python3-bcolz is an example of another package
affected.
* Thu Sep 11 2014 toddrme2178@gmail.com
- Update to 0.21 (2014-09-10)
* Features added
* C (cdef) functions allow inner Python functions.
* Enums can now be declared as cpdef to export their values to
the module's Python namespace. Cpdef enums in pxd files export
their values to their own module, iff it exists.
* Allow @staticmethod decorator to declare static cdef methods.
This is especially useful for declaring "constructors" for
cdef classes that can take non-Python arguments.
* Taking a ``char*`` from a temporary Python string object is safer
in more cases and can be done inside of non-trivial expressions,
including arguments of a function call. A compile time error
is raised only when such a pointer is assigned to a variable and
would thus exceed the lifetime of the string itself.
* Generators have new properties ``__name__`` and ``__qualname__``
that provide the plain/qualified name of the generator function
(following CPython 3.5). See http://bugs.python.org/issue21205
* The ``inline`` function modifier is available as a decorator
``@cython.inline`` in pure mode.
* When cygdb is run in a virtualenv, it enables the same virtualenv
inside of the debugger. Patch by Marc Abramowitz.
* PEP 465: dedicated infix operator for matrix multiplication (A @ B).
* HTML output of annotated code uses Pygments for code highlighting
and generally received a major overhaul by Matthias Bussonier.
* IPython magic support is now available directly from Cython with
the command "%load_ext cython". Cython code can directly be
executed in a cell when marked with "%%cython". Code analysis
is available with "%%cython -a". Patch by Martín Gaitán.
* Simple support for declaring Python object types in Python signature
annotations. Currently requires setting the compiler directive
``annotation_typing=True``.
* New directive ``use_switch`` (defaults to True) to optionally disable
the optimization of chained if statement to C switch statements.
* Defines dynamic_cast et al. in ``libcpp.cast`` and C++ heap data
structure operations in ``libcpp.algorithm``.
* Shipped header declarations in ``posix.*`` were extended to cover
more of the POSIX API. Patches by Lars Buitinck and Mark Peek.
* Optimizations
* Simple calls to C implemented Python functions/methods are faster.
This also speeds up many operations on builtins that Cython cannot
otherwise optimise.
* The "and"/"or" operators try to avoid unnecessary coercions of their
arguments. They now evaluate the truth value of each argument
independently and only coerce the final result of the whole expression
to the target type (e.g. the type on the left side of an assignment).
This also avoids reference counting overhead for Python values during
evaluation and generally improves the code flow in the generated C code.
* The Python expression "2 ** N" is optimised into bit shifting.
See http://bugs.python.org/issue21420
* Cascaded assignments (a = b = ...) try to minimise the number of
type coercions.
* Calls to ``slice()`` are translated to a straight C-API call.
* Bugs fixed
* Crash when assigning memory views from ternary conditional expressions.
* Nested C++ templates could lead to unseparated ">>" characters being
generated into the C++ declarations, which older C++ compilers could
not parse.
* Sending SIGINT (Ctrl-C) during parallel cythonize() builds could
hang the child processes.
* No longer ignore local setup.cfg files for distutils in pyximport.
Patch by Martin Teichmann.
* Taking a ``char*`` from an indexed Python string generated unsafe
reference counting code.
* Set literals now create all of their items before trying to add them
to the set, following the behaviour in CPython. This makes a
difference in the rare case that the item creation has side effects
and some items are not hashable (or if hashing them has side effects,
too).
* Cython no longer generates the cross product of C functions for code
that uses memory views of fused types in function signatures (e.g.
``cdef func(floating[:] a, floating[:] b)``). This is considered the
expected behaviour by most users and was previously inconsistent with
other structured types like C arrays. Code that really wants all type
combinations can create the same fused memoryview type under different
names and use those in the signature to make it clear which types are
independent.
* Names that were unknown at compile time were looked up as builtins at
runtime but not as global module names. Trying both lookups helps with
globals() manipulation.
* Fixed stl container conversion for typedef element types.
* ``obj.pop(x)`` truncated large C integer values of x to ``Py_ssize_t``.
* ``__init__.pyc`` is recognised as marking a package directory
(in addition to .py, .pyx and .pxd).
* Syntax highlighting in ``cython-mode.el`` for Emacs no longer
incorrectly highlights keywords found as part of longer names.
* Correctly handle ``from cython.submodule cimport name``.
* Fix infinite recursion when using super with cpdef methods.
* No-args ``dir()`` was not guaranteed to return a sorted list.
* Other changes
* The header line in the generated C files no longer contains the
timestamp but only the Cython version that wrote it. This was
changed to make builds more reproducible.
* Removed support for CPython 2.4, 2.5 and 3.1.
* The licensing implications on the generated code were clarified
to avoid legal constraints for users.
* Thu Jul 31 2014 dimstar@opensuse.org
- Rename rpmlintrc to %{name}-rpmlintrc.
Follow the packaging guidelines.
* Thu Jul 24 2014 mcihar@suse.cz
- Update to version 0.20.2:
* Some optimisations for set/frozenset instantiation.
* Support for C++ unordered_set and unordered_map.
* Access to attributes of optimised builtin methods (e.g.
``[].append.__name__``) could fail to compile.
* Memory leak when extension subtypes add a memory view as attribute
to those of the parent type without having Python object attributes
or a user provided dealloc method.
* Compiler crash on readonly properties in "binding" mode.
* Auto-encoding with ``c_string_encoding=ascii`` failed in Py3.3.
* Crash when subtyping freelist enabled Cython extension types with
Python classes that use ``__slots__``.
* Freelist usage is restricted to CPython to avoid problems with other
Python implementations.
* Memory leak in memory views when copying overlapping, contiguous slices.
* Format checking when requesting non-contiguous buffers from
``cython.array`` objects was disabled in Py3.
* C++ destructor calls in extension types could fail to compile in clang.
* Buffer format validation failed for sequences of strings in structs.
* Docstrings on extension type attributes in .pxd files were rejected.
- add python-xml to build requirements for testsuite
* Thu May 08 2014 toddrme2178@gmail.com
- Update to version 0.20.1
* List/Tuple literals multiplied by more than one factor were only multiplied
by the last factor instead of all.
* Lookups of special methods (specifically for context managers) could fail
in Python <= 2.6/3.1.
* Local variables were erroneously appended to the signature introspection
of Cython implemented functions with keyword-only arguments under Python 3.
* In-place assignments to variables with inferred Python builtin/extension
types could fail with type errors if the result value type was incompatible
with the type of the previous value.
* The C code generation order of cdef classes, closures, helper code,
etc. was not deterministic, thus leading to high code churn.
* Type inference could fail to deduce C enum types.
* Type inference could deduce unsafe or inefficient types from integer
assignments within a mix of inferred Python variables and integer
variables.