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Revision 1.47 / (download) - annotate - [select for diffs], Mon Apr 15 08:18:38 2019 UTC (5 weeks, 5 days ago) by adam
Branch: MAIN
CVS Tags: HEAD
Changes since 1.46: +5 -5 lines
Diff to previous 1.46 (colored)

py-cython: updated to 0.29.7

0.29.7:
Bugs fixed
* 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.

Revision 1.46 / (download) - annotate - [select for diffs], Thu Feb 28 08:56:03 2019 UTC (2 months, 3 weeks ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2019Q1-base, pkgsrc-2019Q1
Changes since 1.45: +5 -5 lines
Diff to previous 1.45 (colored)

py-cython: updated to 0.29.6

0.29.6:

Bugs fixed

* 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.
  Patch by Michael Anselmi.

* Auto-encoding of Unicode strings to UTF-8 C/C++ strings failed in Python 3,
  even though the default encoding there is UTF-8.

Revision 1.45 / (download) - annotate - [select for diffs], Sat Feb 9 17:20:03 2019 UTC (3 months, 2 weeks ago) by adam
Branch: MAIN
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py-cython: updated to 0.29.5

0.29.5:
Bugs fixed
* 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.

Revision 1.44 / (download) - annotate - [select for diffs], Tue Feb 5 11:51:33 2019 UTC (3 months, 2 weeks ago) by adam
Branch: MAIN
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py-cython: updated to 0.29.4

0.29.4:
Bugs fixed
* Division of numeric constants by a runtime value of 0 could fail to raise a
  ZeroDivisionError.

Revision 1.43 / (download) - annotate - [select for diffs], Mon Jan 21 12:15:27 2019 UTC (4 months ago) by adam
Branch: MAIN
Changes since 1.42: +5 -5 lines
Diff to previous 1.42 (colored)

py-cython: updated to 0.29.3

0.29.3:
Bugs fixed
* Some C code for memoryviews was generated in a non-deterministic order.
* C89 compatibility was accidentally lost since 0.28.
* A C compiler cast warning was resolved.
* An compilation failure with complex numbers under MSVC++ was resolved.
* Coverage reporting could fail when modules were moved around after the build.

Revision 1.42 / (download) - annotate - [select for diffs], Sat Dec 15 20:56:50 2018 UTC (5 months, 1 week ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2018Q4-base, pkgsrc-2018Q4
Changes since 1.41: +5 -5 lines
Diff to previous 1.41 (colored)

py-cython: updated to 0.29.2

0.29.2:
Bugs fixed
* The code generated for deduplicated constants leaked some references.
* The declaration of sigismember() in libc.signal was corrected.
* Crashes in compiler and test runner were fixed.
* A C compiler warning about an invalid safety check was resolved.

Revision 1.41 / (download) - annotate - [select for diffs], Sat Nov 24 15:33:06 2018 UTC (6 months ago) by adam
Branch: MAIN
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py-cython: updated to 0.29.1

0.29.1:

Bugs fixed
----------

* Extensions compiled with MinGW-64 under Windows could misinterpret integer
  objects larger than 15 bit and return incorrect results.

* Cython no longer requires the source to be writable when copying its data
  into a memory view slice.

* Line tracing of try-statements generated invalid C code.

* When using the warn.undeclared directive, Cython's own code generated
  warnings that are now fixed.

* Cython's memoryviews no longer require strides for setting the shape field
  but only the PyBUF_ND flag to be set.

* Some C compiler warnings about unused memoryview code were fixed.

* A C compiler warning about implicit signed/unsigned conversion was fixed.

* Assignments to C++ references returned by operator[] could fail to compile.

* The power operator and the support for NumPy math functions were fixed
  in Pythran expressions.

* Signatures with memory view arguments now show the expected type
  when embedded in docstrings.

* Some from ... cimport ... constructs were not correctly considered
  when searching modified dependencies in cythonize() to decide
  whether to recompile a module.

* A struct field type in the cpython.array declarations was corrected.
  Patch by John Kirkham.

Revision 1.40 / (download) - annotate - [select for diffs], Mon Oct 15 08:21:03 2018 UTC (7 months, 1 week ago) by adam
Branch: MAIN
Changes since 1.39: +6 -6 lines
Diff to previous 1.39 (colored)

py-cython: updated to 0.29

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 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.
Memoryviews are supported in PEP-484/526 style type declarations.
@cython.nogil is supported as a C-function decorator in Python code.
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.
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 trin both Py2 and Py3, and the builtin trtype 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.
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.
(In-)equality comparisons of objects to integer literals are faster.
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.
The coverage plugin considers more C file extensions such as .cc and .cxx.
The cythonize command accepts compile time variable values (as set by DEF) through the new -E option.
pyximport can import from namespace packages.
Some missing numpy and CPython C-API declarations were added.
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
%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 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.

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.
Crash when importing a module under Stackless Python that was built for CPython.
2-value slicing of typed sequences failed if the start or stop index was None.
Multiplied string literals lost their factor when they are part of another constant expression (e.g. * 10 + => y.
String formatting with the operator didn call the special __rmod__() method if the right side is a string subclass that implements it.
The directive language_level=3 did not apply to the first token in the source file.
Overriding cpdef methods did not work in Python subclasses with slots. Note that this can have a performance impact on calls from Cython code.
Fix declarations of builtin or C types using strings in pure python mode.
Generator expressions and lambdas failed to compile in @cfunc functions.
Global names with const types were not excluded from star-import assignments which could lead to invalid C code.
Several internal function signatures were fixed that lead to warnings in gcc-8.
The numpy helper functions set_array_base() and get_array_base() were adapted to the current numpy C-API recommendations.
Some NumPy related code was updated to avoid deprecated API usage.
Several C++ STL declarations were extended and corrected.
C lines of the module init function were unconditionally not reported in exception stack traces.
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.
The source file encoding detection could get confused if the c_string_encoding directive appeared within the first two lines.
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 str 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.
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%.

Revision 1.39 / (download) - annotate - [select for diffs], Tue Aug 7 09:36:42 2018 UTC (9 months, 2 weeks ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2018Q3-base, pkgsrc-2018Q3
Changes since 1.38: +5 -5 lines
Diff to previous 1.38 (colored)

py-cython: updated to 0.28.5

0.28.5:

Bugs fixed

* 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.

* A reference leak in Py2.x was fixed when comparing str to unicode for equality.

Revision 1.38 / (download) - annotate - [select for diffs], Mon Jul 9 06:34:28 2018 UTC (10 months, 2 weeks ago) by adam
Branch: MAIN
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py-cython: updated to 0.28.4

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.
* Exception catching based on a non-literal (runtime) tuple could fail to match the exception.
* Compile fix for CPython 3.7.0a2.

Revision 1.37 / (download) - annotate - [select for diffs], Tue May 29 11:45:06 2018 UTC (11 months, 3 weeks ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2018Q2-base, pkgsrc-2018Q2
Changes since 1.36: +5 -5 lines
Diff to previous 1.36 (colored)

py-cython: updated to 0.28.3

0.28.3:
Bugs fixed
* Set iteration was broken in non-CPython since 0.28.
* UnicodeEncodeError in Py2 when %s formatting is optimised for unicode strings.
* Work around a crash bug in g++ 4.4.x by disabling the size reduction setting of the module init function in this version.

Revision 1.36 / (download) - annotate - [select for diffs], Fri Apr 13 06:55:45 2018 UTC (13 months, 1 week ago) by adam
Branch: MAIN
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py-cython: updated to 0.28.2

0.28.2 (2018-04-13)
Features added
abs() is faster for Python long objects.
The C++11 methods front() and end() were added to the declaration of libcpp.string.
The C++11 methods reserve() and bucket_count() are declared for libcpp.unordered_map.

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.
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.
Fixed compatibility with PyPy 5.11.

Other changes
The NumPy tutorial was rewritten to use memoryviews instead of the older buffer declaration syntax.

Revision 1.35 / (download) - annotate - [select for diffs], Mon Mar 19 08:22:54 2018 UTC (14 months, 1 week ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2018Q1-base, pkgsrc-2018Q1
Changes since 1.34: +5 -5 lines
Diff to previous 1.34 (colored)

py-cython: updated to 0.28.1

0.28.1:
Bugs fixed
PyFrozenSet_New() was accidentally used in PyPy where it is missing from the C-API.
Assignment between some C++ templated types were incorrectly rejected when the templates mix const with ctypedef.
Undeclared C++ no-args constructors in subclasses could make the compilation fail if the base class constructor was declared without nogil.
Bytes %-formatting inferred basestring (bytes or unicode) as result type in some cases where bytes would have been safe to infer.
None was accidentally disallowed as typed return value of dict.pop().

Revision 1.34 / (download) - annotate - [select for diffs], Thu Mar 15 09:30:18 2018 UTC (14 months, 1 week ago) by adam
Branch: MAIN
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py-cython: updated to 0.28

0.28:
Cdef classes can now multiply inherit from ordinary Python classes.
Type inference is now supported for Pythran compiled NumPy expressions.
The const modifier can be applied to memoryview declarations to allow read-only buffers as input.
C code in the docstring of a cdef extern block is copied verbatimly into the generated file. Patch by Jeroen Demeyer.
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.
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.
The new TSS C-API in CPython 3.7 is supported and has been backported. Patch by Naotoshi Seo.
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.
dict.pop() is optimised. Original patch by Antoine Pitrou.
Iteration over sets and frozensets is optimised.
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.
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.
The warning about repeated extern declarations is now visible by default.
The exception handling of the function types used by CPython 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.
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.

Revision 1.33 / (download) - annotate - [select for diffs], Mon Nov 6 10:12:29 2017 UTC (18 months, 2 weeks ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2017Q4-base, pkgsrc-2017Q4
Changes since 1.32: +5 -5 lines
Diff to previous 1.32 (colored)

py-cython: updated to 0.27.3

0.27.3:

Bugs fixed

* String forward references to extension types like ``@cython.locals(x="ExtType")``
  failed to find the named type.

* NumPy slicing generated incorrect results when compiled with Pythran.

* Fix "undefined reference" linker error for generators on Windows in Py3.3-3.5.

* Adapt to recent C-API change of ``PyThreadState`` in CPython 3.7.

* Fix signature of ``PyWeakref_GetObject()`` API declaration.

Revision 1.32 / (download) - annotate - [select for diffs], Mon Oct 23 20:46:22 2017 UTC (19 months ago) by adam
Branch: MAIN
Changes since 1.31: +5 -5 lines
Diff to previous 1.31 (colored)

py-cython: updated to 0.27.2

0.27.2:

Bugs fixed
----------
* Comprehensions could incorrectly be optimised away when they appeared in boolean
  test contexts.
* The special methods ``__eq__``, ``__lt__`` etc. in extension types did not type
  their first argument as the type of the class but ``object``.
* Crash on first lookup of "cline_in_traceback" option during exception handling.
* Some nested module level comprehensions failed to compile.
* Compiler crash on some complex type declarations in pure mode.
* ``std::unordered_map.erase()`` was declared with an incorrect ``void`` return
  type in ``libcpp.unordered_map``.
* Invalid use of C++ ``fallthrough`` attribute before C++11 and similar issue in clang.
* Compiler crash on misnamed properties.

Revision 1.31 / (download) - annotate - [select for diffs], Tue Oct 3 19:50:23 2017 UTC (19 months, 3 weeks ago) by adam
Branch: MAIN
Changes since 1.30: +5 -5 lines
Diff to previous 1.30 (colored)

py-cython: update to 0.27.1

0.27.1:
Features added
* The Jupyter magic has a new debug option --verbose that shows details about the distutils invocation.

Bugs fixed
* Py3 list comprehensions in class bodies resulted in invalid C code.
* Modules built for later CPython 3.5.x versions failed to import in 3.5.0/3.5.1.
* Deallocating fused types functions and methods kept their GC tracking enabled, which could potentially lead to recursive deallocation attempts.
* Crash when compiling in C++ mode with old setuptools versions.
* C++ object arguments for the constructor of Cython implemented C++ are now passed by reference and not by value to allow for non-copyable arguments, such as unique_ptr.
* API-exported C++ classes with Python object members failed to compile.
* Some issues with the new relaxed exception value handling were resolved.
* Python classes as annotation types could prevent compilation.
* Cython annotation types in Python files could lead to import failures with a "cython undefined" error. Recognised types are now turned into strings.
* Coverage analysis could fail to report on extension modules on some platforms.
* Annotations could be parsed (and rejected) as types even with annotation_typing=False.

Other changes
* PEP 489 support has been disabled by default to counter incompatibilities with import setups that try to reload or reinitialise modules.

Revision 1.30 / (download) - annotate - [select for diffs], Sat Sep 30 09:53:23 2017 UTC (19 months, 3 weeks ago) by adam
Branch: MAIN
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py-cython: update to 0.27

0.27:

Features added
* Extension module initialisation follows
  `PEP 489 <https://www.python.org/dev/peps/pep-0489/>`_ in CPython 3.5+, which
  resolves several differences with regard to normal Python modules.  This makes
  the global names ``__file__`` and ``__path__`` correctly available to module
  level code and improves the support for module-level relative imports.
* Asynchronous generators (`PEP 525 <https://www.python.org/dev/peps/pep-0525/>`_)
  and asynchronous comprehensions (`PEP 530 <https://www.python.org/dev/peps/pep-0530/>`_)
  have been implemented.  Note that async generators require finalisation support
  in order to allow for asynchronous operations during cleanup, which is only
  available in CPython 3.6+.  All other functionality has been backported as usual.
* Variable annotations are now parsed according to
  `PEP 526 <https://www.python.org/dev/peps/pep-0526/>`_.  Cython types (e.g.
  ``cython.int``) are evaluated as C type declarations and everything else as Python
  types.  This can be disabled with the directive ``annotation_typing=False``.
  Note that most complex PEP-484 style annotations are currently ignored.  This will
  change in future releases.
* Extension types (also in pure Python mode) can implement the normal special methods
  ``__eq__``, ``__lt__`` etc. for comparisons instead of the low-level ``__richcmp__``
  method.
* New decorator ``@cython.exceptval(x=None, check=False)`` that makes the signature
  declarations ``except x``, ``except? x`` and ``except *`` available to pure Python
  code.  Original patch by Antonio Cuni.
* Signature annotations are now included in the signature docstring generated by
  the ``embedsignature`` directive.
* The gdb support for Python code (``libpython.py``) was updated to the latest
  version in CPython 3.7 (git rev 5fe59f8).
* The compiler tries to find a usable exception return value for cdef functions
  with ``except *`` if the returned type allows it.  Note that this feature is subject
  to safety limitations, so it is still better to provide an explicit declaration.
* C functions can be assigned to function pointers with a compatible exception
  declaration, not only with exact matches.  A side-effect is that certain compatible
  signature overrides are now allowed and some more mismatches of exception signatures
  are now detected and rejected as errors that were not detected before.
* The IPython/Jupyter magic integration has a new option ``%%cython --pgo`` for profile
  guided optimisation. It compiles the cell with PGO settings for the C compiler,
  executes it to generate a runtime profile, and then compiles it again using that
  profile for C compiler optimisation.  Currently only tested with gcc.
* ``len(memoryview)`` can be used in nogil sections to get the size of the
  first dimension of a memory view (``shape[0]``).
* C++ classes can now contain (properly refcounted) Python objects.
* NumPy dtype subarrays are now accessible through the C-API.
* Resolves several issues with PyPy and uses faster async slots in PyPy3.

Bugs fixed
* Extension types that were cimported from other Cython modules could disagree
  about the order of fused cdef methods in their call table.  This could lead
  to wrong methods being called and potentially also crashes.  The fix required
  changes to the ordering of fused methods in the call table, which may break
  existing compiled modules that call fused cdef methods across module boundaries,
  if these methods were implemented in a different order than they were declared
  in the corresponding .pxd file.
* The exception state handling in generators and coroutines could lead to
  exceptions in the caller being lost if an exception was raised and handled
  inside of the coroutine when yielding.
* Loops over ``range(enum)`` were not converted into C for-loops.  Note that it
  is still recommended to use an explicit cast to a C integer type in this case.
* Error positions of names (e.g. variables) were incorrectly reported after the
  name and not at the beginning of the name.
* Compile time ``DEF`` assignments were evaluated even when they occur inside of
  falsy ``IF`` blocks.
* Disabling the line tracing from a trace function could fail.
* Several issues with the Pythran integration were resolved.
* abs(signed int) now returns a signed rather than unsigned int.
* Reading ``frame.f_locals`` of a Cython function (e.g. from a debugger or profiler
  could modify the module globals.
* Buffer type mismatches in the NumPy buffer support could leak a reference to the
  buffer owner.
* Using the "is_f_contig" and "is_c_contig" memoryview methods together could leave
  one of them undeclared.
* Compilation failed if the for-in-range loop target was not a variable but a more
  complex expression, e.g. an item assignment.
* Compile time evaluations of (partially) constant f-strings could show incorrect
  results.
* Escape sequences in raw f-strings (``fr'...'``) were resolved instead of passing
  them through as expected.
* Some ref-counting issues in buffer error handling have been resolved.

Other changes
* Type declarations in signature annotations are now parsed according to
  `PEP 484 <https://www.python.org/dev/peps/pep-0484/>`_
  typing.  Only Cython types (e.g. ``cython.int``) and Python builtin types are
  currently considered as type declarations.  Everything else is ignored, but this
  will change in a future Cython release.
* The directive ``annotation_typing`` is now ``True`` by default, which enables
  parsing type declarations from annotations.
* This release no longer supports Python 3.2.

Revision 1.29 / (download) - annotate - [select for diffs], Sun Sep 3 18:48:54 2017 UTC (20 months, 3 weeks ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2017Q3-base, pkgsrc-2017Q3, pkgsrc-
Changes since 1.28: +5 -5 lines
Diff to previous 1.28 (colored)

0.26.1:
Bugs fixed
* ``cython.view.array`` was missing ``.__len__()``.
* Extension types with a ``.pxd`` override for their ``__releasebuffer__`` slot
  (e.g. as provided by Cython for the Python ``array.array`` type) could leak
  a reference to the buffer owner on release, thus not freeing the memory.
* Auto-decoding failed in 0.26 for strings inside of C++ containers.
* Compile error when inheriting from C++ container types.
* Invalid C code in generators (declaration after code).
* Arithmetic operations on ``const`` integer variables could generate invalid code.
* Local variables with names of special Python methods failed to compile inside of
  closures.
* Problem with indirect Emacs buffers in cython-mode.
* Extension types named ``result`` or ``PickleError`` generated invalid unpickling code.
* Bazel integration failed to compile ``.py`` files.
* Some include directories and dependencies were referenced with their absolute paths
  in the generated files despite lying within the project directory.

Revision 1.28 / (download) - annotate - [select for diffs], Thu Jul 20 08:37:09 2017 UTC (22 months ago) by adam
Branch: MAIN
Changes since 1.27: +5 -5 lines
Diff to previous 1.27 (colored)

0.26:

Features added

* Pythran can be used as a backend for evaluating NumPy array expressions.

* cdef classes now support pickling by default when possible.
  This can be disabled with the ``auto_pickle`` directive.

* Speed up comparisons of strings if their hash value is available.

* Support pyximport from zip files.

* IPython magic now respects the ``__all__`` variable and ignores
  names with leading-underscore (like ``import *`` does).

* ``abs()`` is optimised for C complex numbers.

* The display of C lines in Cython tracebacks can now be enabled at runtime
  via ``import cython_runtime; cython_runtime.cline_in_traceback=True``.
  The default has been changed to False.

* The overhead of calling fused types generic functions was reduced.

* "cdef extern" include files are now also searched relative to the current file.

* Optional optimization for re-aquiring the GIL, controlled by the
  `fast_gil` directive.

Bugs fixed
----------

* Item lookup/assignment with a unicode character as index that is typed
  (explicitly or implicitly) as ``Py_UCS4`` or ``Py_UNICODE`` used the
  integer value instead of the Unicode string value. Code that relied on
  the previous behaviour now triggers a warning that can be disabled by
  applying an explicit cast. (Github issue 1602)

* f-string processing was adapted to changes in PEP 498 and CPython 3.6.

* Invalid C code when decoding from UTF-16(LE/BE) byte strings.

* Unicode escapes in 'ur' raw-unicode strings were not resolved in Py2 code.

* File paths of code objects are now relative.

* Decorators of cdef class methods could be executed twice.

* Several warnings in the generated coder are now suppressed.

Other changes
-------------

* The ``unraisable_tracebacks`` option now defaults to ``True``.

* Coercion of C++ containers to Python is no longer automatic on attribute
  access (Github issue 1521).

* Access to Python attributes of cimported modules without the corresponding
  import is now a compile-time (rather than runtime) error.

* Do not use special dll linkage for "cdef public" functions.

* cdef/cpdef methods must match their declarations.  See Github Issue 1732.
  This is now a warning and will be an error in future releases.

Revision 1.27 / (download) - annotate - [select for diffs], Wed Jan 25 16:09:06 2017 UTC (2 years, 3 months ago) by adam
Branch: MAIN
CVS Tags: pkgsrc-2017Q2-base, pkgsrc-2017Q2, pkgsrc-2017Q1-base, pkgsrc-2017Q1
Changes since 1.26: +5 -5 lines
Diff to previous 1.26 (colored)

Changes 0.25.2:
Bugs fixed
----------
* Fixes several issues with C++ template deduction.
* Fixes a issue with bound method type inference
* Fixes a bug with cascaded tuple assignment
* Fixed or silenced many Clang warnings.
* Fixes bug with powers of pure real complex numbers

Revision 1.26 / (download) - annotate - [select for diffs], Wed Apr 13 18:13:49 2016 UTC (3 years, 1 month ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2016Q4-base, pkgsrc-2016Q4, pkgsrc-2016Q3-base, pkgsrc-2016Q3, pkgsrc-2016Q2-base, pkgsrc-2016Q2
Changes since 1.25: +5 -5 lines
Diff to previous 1.25 (colored)

Update py-cython to 0.24.

0.24 (2016-03-xx)
=================

Features added
--------------

* PEP 498: Literal String Formatting (f-strings).
  Original patch by Jelle Zijlstra.
  https://www.python.org/dev/peps/pep-0498/

* PEP 515: Underscores as visual separators in number literals.
  https://www.python.org/dev/peps/pep-0515/

* Parser was adapted to some minor syntax changes in Py3.6, e.g.
  https://bugs.python.org/issue9232

* The embedded C code comments that show the original source code
  can be discarded with the new directive ``emit_code_comments=False``.

* Cpdef enums are now first-class iterable, callable types in Python.

* Ctuples can now be declared in pure Python code.

* Posix declarations for DLL loading and stdio extensions were added.
  Patch by Lars Buitinck.

* The Py2-only builtins ``unicode()``, ``xrange()``, ``reduce()`` and
  ``long`` are now also available in compile time ``DEF`` expressions
  when compiling with Py3.

* Exception type tests have slightly lower overhead.
  This fixes ticket 868.

* @property syntax fully supported in cdef classes, old syntax deprecated.

* C++ classes can now be declared with default template parameters.

Bugs fixed
----------

* C++ exceptions raised by overloaded C++ operators were not always
  handled.  Patch by Ian Henriksen.

* C string literals were previously always stored as non-const global
  variables in the module.  They are now stored as global constants
  when possible, and otherwise as non-const C string literals in the
  generated code that uses them.  This improves compatibility with
  strict C compiler options and prevents non-const strings literals
  with the same content from being incorrectly merged.

* Compile time evaluated ``str`` expressions (``DEF``) now behave in a
  more useful way by turning into Unicode strings when compiling under
  Python 3.  This allows using them as intermediate values in expressions.
  Previously, they always evaluated to bytes objects.

* ``isinf()`` declarations in ``libc/math.pxd`` and ``numpy/math.pxd`` now
  reflect the actual tristate ``int`` return value instead of using ``bint``.

* Literal assignments to ctuples avoid Python tuple round-trips in some
  more corner cases.

* Iteration over ``dict(...).items()`` failed to get optimised when dict
  arguments included keyword arguments.

* cProfile now correctly profiles cpdef functions and methods.


0.23.5 (2016-03-26)
===================

* Compile errors and warnings in integer type conversion code.  This fixes
  ticket 877.  Patches by Christian Neukirchen, Nikolaus Rath, Ian Henriksen.

* Reference leak when "*args" argument was reassigned in closures.

* Truth-testing Unicode strings could waste time and memory in Py3.3+.

* Return values of async functions could be ignored and replaced by ``None``.

* Compiler crash in CPython 3.6.

* Fix prange() to behave identically to range().  The end condition was
  miscalculated when the range was not exactly divisible by the step.

* Optimised ``all(genexpr)``/``any(genexpr)`` calls could warn about unused
  code.  This fixes ticket 876.

Revision 1.25 / (download) - annotate - [select for diffs], Wed Nov 4 17:41:17 2015 UTC (3 years, 6 months ago) by agc
Branch: MAIN
CVS Tags: pkgsrc-2016Q1-base, pkgsrc-2016Q1, pkgsrc-2015Q4-base, pkgsrc-2015Q4
Changes since 1.24: +1 -2 lines
Diff to previous 1.24 (colored)

Remove duplicate SHA512 digests that crept in.

Revision 1.24 / (download) - annotate - [select for diffs], Tue Nov 3 03:29:06 2015 UTC (3 years, 6 months ago) by agc
Branch: MAIN
Changes since 1.23: +2 -1 lines
Diff to previous 1.23 (colored)

Add SHA512 digests for distfiles for devel category

Issues found with existing distfiles:
	distfiles/eclipse-sourceBuild-srcIncluded-3.0.1.zip
	distfiles/fortran-utils-1.1.tar.gz
	distfiles/ivykis-0.39.tar.gz
	distfiles/enum-1.11.tar.gz
	distfiles/pvs-3.2-libraries.tgz
	distfiles/pvs-3.2-linux.tgz
	distfiles/pvs-3.2-solaris.tgz
	distfiles/pvs-3.2-system.tgz
No changes made to these distinfo files.

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.

Revision 1.23 / (download) - annotate - [select for diffs], Mon Oct 19 09:42:22 2015 UTC (3 years, 7 months ago) by wiz
Branch: MAIN
Changes since 1.22: +5 -4 lines
Diff to previous 1.22 (colored)

Update to 0.23.4:

0.23.4 (2015-10-10)
===================

Bugs fixed
----------

* Memory leak when calling Python functions in PyPy.

* Compilation problem with MSVC in C99-ish mode.

* Warning about unused values in a helper macro.


0.23.3 (2015-09-29)
===================

Bugs fixed
----------

* 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.

Other changes
-------------

* 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.

Revision 1.22 / (download) - annotate - [select for diffs], Wed Sep 30 19:22:08 2015 UTC (3 years, 7 months ago) by wiz
Branch: MAIN
Changes since 1.21: +4 -4 lines
Diff to previous 1.21 (colored)

Update to 0.23.2:

0.23.2 (2015-09-11)
===================

Bugs fixed
----------

* 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.

Revision 1.21 / (download) - annotate - [select for diffs], Tue Aug 25 08:59:15 2015 UTC (3 years, 9 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2015Q3-base, pkgsrc-2015Q3
Changes since 1.20: +4 -4 lines
Diff to previous 1.20 (colored)

Update to 0.23.1:

0.23.1 (2015-08-22)
===================

Bugs fixed
----------

* 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.

Revision 1.20 / (download) - annotate - [select for diffs], Fri Aug 14 17:47:54 2015 UTC (3 years, 9 months ago) by wiz
Branch: MAIN
Changes since 1.19: +4 -4 lines
Diff to previous 1.19 (colored)

Update to 0.23:

0.23 (2015-08-08)
=================

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 Enlin.

* 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 Enlin.

* 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.

Revision 1.19 / (download) - annotate - [select for diffs], Wed Jul 1 09:55:42 2015 UTC (3 years, 10 months ago) by wiz
Branch: MAIN
Changes since 1.18: +4 -4 lines
Diff to previous 1.18 (colored)

Update to 0.22:

0.22.1 (2015-06-20)
===================

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.

Revision 1.18 / (download) - annotate - [select for diffs], Tue Feb 17 14:00:01 2015 UTC (4 years, 3 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2015Q2-base, pkgsrc-2015Q2, pkgsrc-2015Q1-base, pkgsrc-2015Q1
Changes since 1.17: +4 -4 lines
Diff to previous 1.17 (colored)

Update to 0.22:

0.22 (2015-02-11)
=================

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.

* Several corrections and extensions in numpy, cpython, and libcpp pxd files.

Revision 1.17 / (download) - annotate - [select for diffs], Tue Dec 30 14:23:48 2014 UTC (4 years, 4 months ago) by wiz
Branch: MAIN
Changes since 1.16: +4 -4 lines
Diff to previous 1.16 (colored)

Update to 0.21.2:

0.21.2 (2014-12-27)
===================

Bugs fixed
----------

* Crash when assigning a C value to both a Python and C target at the same time.

* Automatic coercion from C++ strings to ``str`` generated incomplete code that
  failed to compile.

* Declaring a constructor in a C++ child class erroneously required a default
  constructor declaration in the super class.

* ``resize_smart()`` in ``cpython.array`` was broken.

* Functions in ``libcpp.cast`` are now declared as ``nogil``.

* Some missing C-API declarations were added.

* Py3 main code in embedding program code was lacking casts.

* Exception related to distutils "Distribution" class type in pyximport under
  latest CPython 2.7 and 3.4 releases when setuptools is being imported later.

Revision 1.16 / (download) - annotate - [select for diffs], Thu Oct 23 10:09:49 2014 UTC (4 years, 7 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2014Q4-base, pkgsrc-2014Q4
Changes since 1.15: +4 -4 lines
Diff to previous 1.15 (colored)

Update to 0.21.1:

0.21.1 (2014-10-18)
===================

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.

Revision 1.15 / (download) - annotate - [select for diffs], Sun Sep 14 17:44:49 2014 UTC (4 years, 8 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2014Q3-base, pkgsrc-2014Q3
Changes since 1.14: +6 -6 lines
Diff to previous 1.14 (colored)

Update to 0.21:

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.

Revision 1.14 / (download) - annotate - [select for diffs], Tue Jul 22 11:42:51 2014 UTC (4 years, 10 months ago) by wiz
Branch: MAIN
Changes since 1.13: +4 -4 lines
Diff to previous 1.13 (colored)

Update to 0.20.2:

0.20.2 (2014-06-16)
===================

Features added
--------------

* Some optimisations for set/frozenset instantiation.

* Support for C++ unordered_set and unordered_map.

Bugs fixed
----------

* 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.

Revision 1.13 / (download) - annotate - [select for diffs], Thu Feb 20 09:29:03 2014 UTC (5 years, 3 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2014Q2-base, pkgsrc-2014Q2, pkgsrc-2014Q1-base, pkgsrc-2014Q1
Changes since 1.12: +4 -4 lines
Diff to previous 1.12 (colored)

Update to 0.20.1:

===================
0.20.1 (2014-02-11)
===================

Bugs fixed
----------

* 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.

Revision 1.12 / (download) - annotate - [select for diffs], Tue Feb 18 16:13:31 2014 UTC (5 years, 3 months ago) by wiz
Branch: MAIN
Changes since 1.11: +1 -2 lines
Diff to previous 1.11 (colored)

Fix packaging when py-setuptools is installed by just switching to it
completely and adapting the package.
Replace patch-aa with post-install target.
Fix interpreter path in installed file.
Bump PKGREVISION.

Addresses PR pkg/48602 by Hauke Fath.

Revision 1.11 / (download) - annotate - [select for diffs], Mon Jan 27 19:44:24 2014 UTC (5 years, 3 months ago) by wiz
Branch: MAIN
Changes since 1.10: +4 -4 lines
Diff to previous 1.10 (colored)

Update to 0.20:

0.20 (??)
===================

Features added
--------------

* Support for CPython 3.4.

* Support for calling C++ template functions.

* ``yield`` is supported in ``finally`` clauses.

* The C code generated for finally blocks is duplicated for each exit
  case to allow for better optimisations by the C compiler.

* Cython tries to undo the Python optimisationism of assigning a bound
  method to a local variable when it can generate better code for the
  direct call.

* Constant Python float values are cached.

* String equality comparisons can use faster type specific code in
  more cases than before.

* String/Unicode formatting using the '%' operator uses a faster
  C-API call.

* ``bytearray`` has become a known type and supports coercion from and
  to C strings.  Indexing, slicing and decoding is optimised. Note that
  this may have an impact on existing code due to type inference.

* Using ``cdef basestring stringvar`` and function arguments typed as
  ``basestring`` is now meaningful and allows assigning exactly
  ``str`` and ``unicode`` objects, but no subtypes of these types.

* Support for the ``__debug__`` builtin.

* Assertions in Cython compiled modules are disabled if the running
  Python interpreter was started with the "-O" option.

* Some types that Cython provides internally, such as functions and
  generators, are now shared across modules if more than one Cython
  implemented module is imported.

* The type inference algorithm works more fine granular by taking the
  results of the control flow analysis into account.

* A new script in ``bin/cythonize`` provides a command line frontend
  to the cythonize() compilation function (including distutils build).

* The new extension type decorator ``@cython.no_gc_clear`` prevents
  objects from being cleared during cyclic garbage collection, thus
  making sure that object attributes are kept alive until deallocation.

* During cyclic garbage collection, attributes of extension types that
  cannot create reference cycles due to their type (e.g. strings) are
  no longer considered for traversal or clearing.  This can reduce the
  processing overhead when searching for or cleaning up reference cycles.

* Package compilation (i.e. ``__init__.py`` files) now works, starting
  with Python 3.3.

* The cython-mode.el script for Emacs was updated.  Patch by Ivan Andrus.

* An option common_utility_include_dir was added to cythonize() to save
  oft-used utility code once in a separate directory rather than as
  part of each generated file.

* ``unraisable_tracebacks`` directive added to control printing of
  tracebacks of unraisable exceptions.

Bugs fixed
----------

* Abstract Python classes that subtyped a Cython extension type
  failed to raise an exception on instantiation, and thus ended
  up being instantiated.

* ``set.add(a_tuple)`` and ``set.discard(a_tuple)`` failed with a
  TypeError in Py2.4.

* The PEP 3155 ``__qualname__`` was incorrect for nested classes and
  inner classes/functions declared as ``global``.

* Several corner cases in the try-finally statement were fixed.

* The metaclass of a Python class was not inherited from its parent
  class(es).  It is now extracted from the list of base classes if not
  provided explicitly using the Py3 ``metaclass`` keyword argument.
  In Py2 compilation mode, a ``__metaclass__`` entry in the class
  dict will still take precedence if not using Py3 metaclass syntax,
  but only *after* creating the class dict (which may have been done
  by a metaclass of a base class, see PEP 3115).  It is generally
  recommended to use the explicit Py3 syntax to define metaclasses
  for Python types at compile time.

* The automatic C switch statement generation behaves more safely for
  heterogeneous value types (e.g. mixing enum and char), allowing for
  a slightly wider application and reducing corner cases.  It now always
  generates a 'default' clause to avoid C compiler warnings about
  unmatched enum values.

* Fixed a bug where class hierarchies declared out-of-order could result
  in broken generated code.

* Fixed a bug which prevented overriding const methods of C++ classes.

* Fixed a crash when converting Python objects to C++ strings fails.

Other changes
-------------

* In Py3 compilation mode, Python2-style metaclasses declared by a
  ``__metaclass__`` class dict entry are ignored.

* In Py3.4+, the Cython generator type uses ``tp_finalize()`` for safer
  cleanup instead of ``tp_del()``.

Revision 1.10 / (download) - annotate - [select for diffs], Sun Oct 20 22:04:31 2013 UTC (5 years, 7 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2013Q4-base, pkgsrc-2013Q4
Changes since 1.9: +5 -5 lines
Diff to previous 1.9 (colored)

Update to 0.19.2:

0.19.2 (2013-10-13)
===================

Bugs fixed
----------

* Some standard declarations were fixed or updated, including the previously
  incorrect declaration of ``PyBuffer_FillInfo()`` and some missing bits in
  ``libc.math``.

* Heap allocated subtypes of ``type`` used the wrong base type struct at the
  C level.

* Calling the unbound method dict.keys/value/items() in dict subtypes could
  call the bound object method instead of the unbound supertype method.

* "yield" wasn't supported in "return" value expressions.

* Using the "bint" type in memory views lead to unexpected results.
  It is now an error.

* Assignments to global/closure variables could catch them in an illegal state
  while deallocating the old value.

Revision 1.9 / (download) - annotate - [select for diffs], Sun May 19 17:41:29 2013 UTC (6 years ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2013Q3-base, pkgsrc-2013Q3, pkgsrc-2013Q2-base, pkgsrc-2013Q2
Changes since 1.8: +4 -4 lines
Diff to previous 1.8 (colored)

Update to 0.19.1:

0.19.1 (2013-05-11)
===================

Features added
--------------

* Completely empty C-API structs for extension type slots (protocols like
  number/mapping/sequence) are no longer generated into the C code.

* Docstrings that directly follow a public/readonly attribute declaration
  in a cdef class will be used as docstring of the auto-generated property.
  This fixes ticket 206.

* The automatic signature documentation tries to preserve more semantics
  of default arguments and argument types.  Specifically, ``bint`` arguments
  now appear as type ``bool``.

* A warning is emitted when negative literal indices are found inside of
  a code section that disables ``wraparound`` handling.  This helps with
  fixing invalid code that might fail in the face of future compiler
  optimisations.

* Constant folding for boolean expressions (and/or) was improved.

* Added a build_dir option to cythonize() which allows one to place
  the generated .c files outside the source tree.

Bugs fixed
----------

* ``isinstance(X, type)`` failed to get optimised into a call to
  ``PyType_Check()``, as done for other builtin types.

* A spurious "from datetime cimport *" was removed from the "cpython"
  declaration package. This means that the "datetime" declarations
  (added in 0.19) are no longer available directly from the "cpython"
  namespace, but only from "cpython.datetime". This is the correct
  way of doing it because the declarations refer to a standard library
  module, not the core CPython C-API itself.

* The C code for extension types is now generated in topological order
  instead of source code order to avoid C compiler errors about missing
  declarations for subtypes that are defined before their parent.

* The ``memoryview`` type name no longer shows up in the module dict of
  modules that use memory views.  This fixes trac ticket 775.

* Regression in 0.19 that rejected valid C expressions from being used
  in C array size declarations.

* In C++ mode, the C99-only keyword ``restrict`` could accidentally be
  seen by the GNU C++ compiler. It is now specially handled for both
  GCC and MSVC.

* Testing large (> int) C integer values for their truth value could fail
  due to integer wrap-around.

Other changes
-------------

Revision 1.8 / (download) - annotate - [select for diffs], Sat May 4 23:50:52 2013 UTC (6 years ago) by wiz
Branch: MAIN
Changes since 1.7: +4 -4 lines
Diff to previous 1.7 (colored)

Update to 0.19:

0.19 (2013-04-19)
=================

Features added
--------------

* New directives ``c_string_type`` and ``c_string_encoding`` to more easily
  and automatically convert between C strings and the different Python string
  types.

* The extension type flag ``Py_TPFLAGS_HAVE_VERSION_TAG`` is enabled by default
  on extension types and can be disabled using the ``type_version_tag`` compiler
  directive.

* EXPERIMENTAL support for simple Cython code level line tracing.  Enabled by
  the "linetrace" compiler directive.

* Cython implemented functions make their argument and return type annotations
  available through the ``__annotations__`` attribute (PEP 3107).

* Access to non-cdef module globals and Python object attributes is faster.

* ``Py_UNICODE*`` coerces from and to Python unicode strings.  This is
  helpful when talking to Windows APIs, which use compatible wchar_t
  arrays for strings.  Note that the ``Py_UNICODE`` type is otherwise
  deprecated as of CPython 3.3.

* ``isinstance(obj, basestring)`` is optimised.  In Python 3 it only tests
  for instances of ``str`` (i.e. Py2 ``unicode``).

* The ``basestring`` builtin is mapped to ``str`` (i.e. Py2 ``unicode``) when
  compiling the generated C code under Python 3.

* Closures use freelists, which can speed up their creation quite substantially.
  This is also visible for short running generator expressions, for example.

* A new class decorator ``@cython.freelist(N)`` creates a static freelist of N
  instances for an extension type, thus avoiding the costly allocation step if
  possible. This can speed up object instantiation by 20-30% in suitable
  scenarios. Note that freelists are currently only supported for base types,
  not for types that inherit from others.

* Fast extension type instantiation using the ``Type.__new__(Type)`` idiom has
  gained support for passing arguments.  It is also a bit faster for types defined
  inside of the module.

* The Python2-only dict methods ``.iter*()`` and ``.view*()`` (requires Python 2.7)
  are automatically mapped to the equivalent keys/values/items methods in Python 3
  for typed dictionaries.

* 2-value slicing of unknown objects passes the correct slice when the ``getitem``
  protocol is used instead of the ``getslice`` protocol (especially in Python 3),
  i.e. ``None`` values for missing bounds instead of ``[0,maxsize]``.  It is also
  a bit faster in some cases, e.g. for constant bounds.  This fixes trac ticket 636.

* Slicing unicode strings, lists and tuples is faster.

* list.append() is faster on average.

* ``raise Exception() from None`` suppresses the exception context in Py3.3.

* Py3 compatible ``exec(tuple)`` syntax is supported in Py2 code.

* Keyword arguments are supported for cdef functions.

* External C++ classes can be declared nogil.  Patch by John Stumpo.  This fixes
  trac ticket 805.

Bugs fixed
----------

* Cascaded assignments of None values to extension type variables failed with
  a ``TypeError`` at runtime.

* The ``__defaults__`` attribute was not writable for Cython implemented
  functions.

* Default values of keyword-only arguments showed up in ``__defaults__`` instead
  of ``__kwdefaults__`` (which was not implemented).  Both are available for
  Cython implemented functions now, as specified in Python 3.x.

* ``yield`` works inside of ``with gil`` sections.  It previously lead to a crash.
  This fixes trac ticket 803.

* Static methods without explicitly named positional arguments (e.g. having only
  ``*args``) crashed when being called.  This fixes trac ticket 804.

* ``dir()`` without arguments previously returned an unsorted list, which now
  gets sorted as expected.

* ``dict.items()``, ``dict.keys()`` and ``dict.values()`` no longer return lists
  in Python 3.

* Exiting from an ``except-as`` clause now deletes the exception in Python 3 mode.

* The declarations of ``frexp()`` and ``ldexp()`` in ``math.pxd`` were incorrect.

Revision 1.7 / (download) - annotate - [select for diffs], Sun Feb 3 16:35:51 2013 UTC (6 years, 3 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2013Q1-base, pkgsrc-2013Q1
Changes since 1.6: +4 -4 lines
Diff to previous 1.6 (colored)

Update to 0.18:

0.18 (2013-01-28)
=================

Features added
--------------

* Named Unicode escapes ("\N{...}") are supported.

* Python functions/classes provide the special attribute "__qualname__"
  as defined by PEP 3155.

* Added a directive ``overflowcheck`` which raises an OverflowException when
  arithmetic with C ints overflow.  This has a modest performance penalty, but
  is much faster than using Python ints.

* Calls to nested Python functions are resolved at compile time.

* Type inference works across nested functions.

* ``py_bytes_string.decode(...)`` is optimised.

* C ``const`` declarations are supported in the language.

Bugs fixed
----------

* Automatic C++ exception mapping didn't work in nogil functions (only in
  "with nogil" blocks).

Revision 1.6 / (download) - annotate - [select for diffs], Tue Jan 29 06:06:54 2013 UTC (6 years, 3 months ago) by wiz
Branch: MAIN
Changes since 1.5: +4 -4 lines
Diff to previous 1.5 (colored)

Update to 0.17.4:

0.17.4 (2013-01-03)
===================

Bugs fixed
----------

* Garbage collection triggered during deallocation of container classes could lead to a double-deallocation.

Revision 1.5 / (download) - annotate - [select for diffs], Sun Dec 16 16:07:53 2012 UTC (6 years, 5 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2012Q4-base, pkgsrc-2012Q4
Changes since 1.4: +5 -5 lines
Diff to previous 1.4 (colored)

Update to 0.17.3:

0.17.3:

Bugs fixed
----------

* During final interpreter cleanup (with types cleanup enabled at compile
  time), extension types that inherit from base types over more than one
  level that were cimported from other modules could lead to a crash.
* Weak-reference support in extension types (with a "cdef __weakref__"
  attribute) generated incorrect deallocation code.
* In CPython 3.3, converting a Unicode character to the Py_UNICODE type
  could fail to raise an overflow for non-BMP characters that do not fit
  into a wchar_t on the current platform.
* Negative C integer constants lost their longness suffix in the generated
  C code.

0.17.2:

Features added
--------------

* ``cythonize()`` gained a best effort compile mode that can be used to
simply ignore .py files that fail to compile.

Bugs fixed
----------

* Replacing an object reference with the value of one of its cdef
attributes could generate incorrect C code that accessed the object after
deleting its last reference.

* C-to-Python type coercions during cascaded comparisons could generate
invalid C code, specifically when using the 'in' operator.

* "obj[1,]" passed a single integer into the item getter instead of a tuple.

* Cyclic imports at module init time did not work in Py3.

* The names of C++ destructors for template classes were built incorrectly.

* In pure mode, type casts in Cython syntax and the C ampersand operator
are now rejected. Use the pure mode replacements instead.

* In pure mode, C type names and the sizeof() function are no longer
recognised as such and can be used as normal Python names.

* The extended C level support for the CPython array type was declared too
late to be used by user defined classes.

* C++ class nesting was broken.

* Better checking for required nullary constructors for stack-allocated C++
instances.

* Remove module docstring in no-docstring mode.

* Fix specialization for varargs function signatures.

* Fix several compiler crashes.

Revision 1.4 / (download) - annotate - [select for diffs], Sun Oct 7 21:28:34 2012 UTC (6 years, 7 months ago) by wiz
Branch: MAIN
Changes since 1.3: +4 -4 lines
Diff to previous 1.3 (colored)

Update to 0.17.1:

0.17.1:
General Improvements and Bug Fixes

    A reference leak was fixed in the new dict iteration code when
    the loop target was not a plain variable but an unpacked tuple.
    Memory views did not handle the special case of a NULL buffer
    strides value, as allowed by PEP3118.

0.17:
Features

    Alpha quality support for compiling and running Cython generated
    extension modules in PyPy (through cpyext). Note that this
    requires at leastPyPy 1.9 and in many cases also adaptations
    in user code, especially to avoid borrowed references when no
    owned reference is being held directly in C space (a reference
    in a Python list or dict is not enough, for example). See the
    documentation on porting Cython code to PyPy.

    "yield from" is supported (PEP 380) and a couple of minor
    problems with generators were fixed.

    C++ STL container classes automatically coerce from and to the
    equivalent Python container types on typed assignments and
    casts. Usage examples are here. Note that the data in the
    containers is copied during this conversion.

    C++ iterators can now be iterated over using for x in cpp_container
    whenever cpp_container has begin() and end() methods returning
    objects satisfying the iterator pattern (that is, it can be
    incremented, dereferenced, and compared (for non-equality)).
    cdef classes can now have C++ class members (provided a
    zero-argument constructor exists)

    A new cpython.array standard cimport file allows to efficiently
    talk to the stdlib array.array data type in Python 2. Since
    CPython does not export an official C-API for this module, it
    receives special casing by the compiler in order to avoid setup
    overhead on user side. In Python 3, both buffers and memory
    views on the array type already worked out of the box with
    earlier versions of Cython due to the native support for the
    buffer interface in the Py3 array module.
    Fast dict iteration is now enabled optimistically also for
    untyped variables when the common iteration methods are used.

    The unicode string processing code was adapted for the upcoming
    CPython 3.3 (PEP 393, new Unicode buffer layout).

    Buffer arguments and memory view arguments in Python functions
    can be declared "not None" to raise a TypeError on None input.
    c(p)def functions in pure mode can specify their return type
    with "@cython.returns()".
    Automatic dispatch for fused functions with memoryview arguments
    Support newaxis indexing for memoryviews
    Support decorators for fused functions

General Improvements and Bug Fixes

    Old-style Py2 imports did not work reliably in Python 3.x and
    were broken in Python 3.3. Regardless of this fix, it's generally
    best to be explicit about relative and global imports in Cython
    code because old-style imports have a higher overhead. To this
    end, "from __future__ import absolute_import" is supported in
    Python/Cython 2.x code now (previous versions of Cython already
    used it when compiling Python 3 code).

    Stricter constraints on the inline and final modifiers. If your
    code does not compile due to this change, chances are these
    modifiers were previously being ignored by the compiler and
    can be removed without any performance regression.
    Exceptions are always instantiated while raising them (as in
    Python), instead of risking to instantiate them in potentially
    unsafe situations when they need to be handled or otherwise
    processed.

    locals() properly ignores names that do not have Python compatible
    types (including automatically inferred types).
    Some garbage collection issues of memory views were fixed.

    User declared char* types are now recognised as such and
    auto-coerce to and from Python bytes strings.

    libc.string provides a convenience declaration for const uchar
    in addition to const char.

    Modules generated by @cython.inline() are written into the
    directory pointed to by the environment variable CYTHON_CACHE_DIR
    if set.
    numpy.pxd compiles in Python 3 mode.

    callable() and next() compile to more efficient C code.

    list.append() is faster on average.
    Several C compiler warnings were fixed.
    Several bugs related to memoryviews and fused types were fixed.

    Several bug-fixes and improvements related to cythonize(),
    including ccache-style caching.

Revision 1.3 / (download) - annotate - [select for diffs], Sun Aug 12 21:08:46 2012 UTC (6 years, 9 months ago) by wiz
Branch: MAIN
CVS Tags: pkgsrc-2012Q3-base, pkgsrc-2012Q3
Changes since 1.2: +7 -7 lines
Diff to previous 1.2 (colored)

Update to 0.16:

0.16
Features
    Enhancements to Cython's function type (support for weak
    references, default arguments, code objects, dynamic attributes,
    classmethods, staticmethods, and more)
    Fused Types - Template-like support for functions and methods
    CEP 522 (docs)
    Typed views on memory - Support for efficient direct and indirect
    buffers (indexing, slicing, transposing, ...) CEP 517 (docs)
    super() without arguments
    Final cdef methods (which translate into direct calls on known
    instances)
General Improvements and Bug Fixes
    support default arguments for closures
    search sys.path for pxd files
    support C++ template casting
    faster traceback building and faster generator termination
    support inplace operators on indexed buffers
    fix alignment handling for record types in buffer support
    allow nested prange sections

0.15.1
This is a bugfix-only release.

0.15
Major Features
    Generators (yield) - Cython has full support for generators,
    generator expressions and PEP 342 coroutines.
    The nonlocal keyword is supported.
    Re-acquiring the gil: with gil - works as expected within a
    nogil context.
    OpenMP support: prange.
    Control flow analysis prunes dead code and emits warnings and
    errors about uninitialised variables.
    Debugger command cy set to assign values of expressions to
    Cython variables and cy exec counterpart $cy_eval().
    Exception chaining PEP 3134.
    Relative imports PEP 328.
    Improved pure syntax including cython.cclass, cython.cfunc,
    and cython.ccall.
    The with statement has its own dedicated and faster C
    implementation.
    Support for del.
    Boundschecking directives implemented for builtin Python sequence
    types.
    Several updates and additions to the shipped standard library
    .pxd files.
    Forward declaration of types is no longer required for circular
    references.
Note: this will be the last release to support Python 2.3; Python
2.4 will be supported for at least one more release.
General improvements and bug fixes
This release contains over a thousand commits including hundreds
of bugfixes and optimizations. The bug tracker has not been as
heavily used this release cycle, but is still an interesting subset
of improvements and fixes
Incompatible changes
    Uninitialized variables are no longer initialized to None and
    accessing them has the same semantics as standard Python.
    globals() now returns a read-only dict of the Cython module's
    globals, rather than the globals
        of the first non-Cython module in the stack
    Many C++ exceptions are now special cased to give closer Python
    counterparts. This means that except+ functions that formerly
    raised generic RuntimeErrors may raise something else such as
    ArithmeticError.
Known regressions
    The inlined generator expressions (introduced in Cython 0.13)
    were disabled in favour of full generator expression support.
    This breaks code that previously used them inside of cdef
    functions (usage in def functions continues to work) and induces
    a performance regression for cases that continue to work but
    that were previously inlined. We hope to reinstate this feature
    in the near future.
    Generators (yield) - Cython has full support for generators,
    generator expressions and PEP 342 coroutines.
    The nonlocal keyword is supported.
    Re-acquiring the gil: with gil - works as expected within a
    nogil context.
    OpenMP support: prange.
    Control flow analysis prunes dead code and emits warnings and
    errors about uninitialised variables.
    Debugger command cy set to assign values of expressions to
    Cython variables and cy exec counterpart $cy_eval().
    Exception chaining PEP 3134.
    Relative imports PEP 328.
    Improved pure syntax including cython.cclass, cython.cfunc,
    and cython.ccall.
    The with statement has its own dedicated and faster C
    implementation.
    Support for del.
    Boundschecking directives implemented for builtin Python sequence
    types.
    Several updates and additions to the shipped standard library
    .pxd files.
    Forward declaration of types is no longer required for circular
    references.
Note: this will be the last release to support Python 2.3; Python
2.4 will be supported for at least one more release.
General improvements and bug fixes
This release contains over a thousand commits including hundreds
of bugfixes and optimizations. The bug tracker has not been as
heavily used this release cycle, but is still an interesting subset
of improvements and fixes
Incompatible changes
    Uninitialized variables are no longer initialized to None and
    accessing them has the same semantics as standard Python.
    globals() now returns a read-only dict of the Cython module's
    globals, rather than the globals
	of the first non-Cython module in the stack
    Many C++ exceptions are now special cased to give closer Python
    counterparts. This means that except+ functions that formerly
    raised generic RuntimeErrors may raise something else such as
    ArithmeticError.
Known regressions
    The inlined generator expressions (introduced in Cython 0.13)
    were disabled in favour of full generator expression support.
    This breaks code that previously used them inside of cdef
    functions (usage in def functions continues to work) and induces
    a performance regression for cases that continue to work but
    that were previously inlined. We hope to reinstate this feature
    in the near future.

0.14.1
New Features
    The gdb debugging support was extended to include all major
    Cython features, including closures.
    raise MemoryError() is now safe to use as Cython replaces it
    with the correct C-API call.
General improvements and bug fixes
The bug tracker has a list of the major improvements and fixes
Incompatible changes
    Decorators on special methods of cdef classes now raise a
    compile time error rather than being ignored.
    In Python 3 language level mode (-3 option), the 'str' type is
    now mapped to 'unicode', so that cdef str s declares a Unicode
    string even when running in Python 2.

0.14
New Features
    Python classes can now be nested and receive a proper closure
    at definition time.
    Redefinition is supported for Python functions, even within
    the same scope.
    Lambda expressions are supported in class bodies and at the
    module level.
    Metaclasses are supported for Python classes, both in Python
    2 and Python 3 syntax. The Python 3 syntax (using a keyword
    argument in the type declaration) is preferred and optimised
    at compile time.
    "final" extension classes prevent inheritance in Python space.
    This feature is available through the new "cython.final"
    decorator. In the future, these classes may receive further
    optimisations.
    "internal" extension classes do not show up in the module
    dictionary. This feature is available through the new
    "cython.internal" decorator.
    Extension type inheritance from builtin types, such as "cdef
    class MyUnicode(unicode)", now works without further external
    type redeclarations (which are also strongly discouraged now
    and continue to issue a warning).
    GDB support. http://docs.cython.org/src/userguide/debugging.html
    A new build system with support for inline distutils directives,
    correct dependency tracking, and parallel compilation.
    http://wiki.cython.org/enhancements/distutils_preprocessing
    Support for dynamic compilation at runtime via the new
    cython.inline function and cython.compile decorator.
    http://wiki.cython.org/enhancements/inline
General improvements and bug fixes
    In parallel assignments, the right side was evaluated in reverse
    order in 0.13. This could result in errors if it had side
    effects (e.g. function calls).
    In some cases, methods of builtin types would raise a SystemError
    instead of an AttributeError when called on None.
    Constant tuples are now cached over the lifetime of an extension
    module, just like CPython does. Constant argument tuples of
    Python function calls are also cached.
    Closures have tightened to include exactly the names used in
    the inner functions and classes. Previously, they held the
    complete locals of the defining function.
    "nogil" blocks are supported when compiling pure Python code
    by writing "with cython.nogil".
    The builtin "next()" function in Python 2.6 and later is now
    implemented internally and therefore available in all Python
    versions. This makes it the preferred and portable way of
    manually advancing an iterator.
    In addition to the previously supported inlined generator
    expressions in 0.13, "sorted(genexpr)" can now be used as well.
    Typing issues were fixed in "sum(genexpr)" that could lead to
    invalid C code being generated. Other known issues with inlined
    generator expressions were also fixed that make upgrading to
    0.14 a strong recommendation for code that uses them. Note that
    general generators and generator expressions continue to be
    not supported.
    Iterating over arbitrary pointer types is now supported, as is
    an optimized version of the in operator, e.g. x in ptr[a:b].
    Inplace arithmetic operators now respect the cdivision directive
    and are supported for complex types.
Incompatible changes
    Typing a variable as type "complex" previously gave it the
    Python object type. It now uses the appropriate C/C++ double
    complex type. A side-effect is that assignments and typed
    function parameters now accept anything that Python can coerce
    to a complex, including integers and floats, and not only
    complex instances.
    Large integer literals pass through the compiler in a safer
    way. To prevent truncation in C code, non 32-bit literals are
    turned into Python objects if not used in a C context. This
    context can either be given by a clear C literal suffix such
    as "UL" or "LL" (or "L" in Python 3 code), or it can be an
    assignment to a typed variable or a typed function argument,
    in which case it is up to the user to take care of a sufficiently
    large value space of the target.
    Python functions are declared in the order they appear in the
    file, rather than all being created at module creation time.
    This is consistent with Python and needed to support, for
    example, conditional or repeated declarations of functions. In
    the face of circular imports this may cause code to break, so
    a new --disable-function-redefinition flag was added to revert
    to the old behavior. This flag will be removed in a future
    release, so should only be used as a stopgap until old code
    can be fixed.

Revision 1.2 / (download) - annotate - [select for diffs], Wed Nov 24 17:58:22 2010 UTC (8 years, 6 months ago) by drochner
Branch: MAIN
CVS Tags: pkgsrc-2012Q2-base, pkgsrc-2012Q2, pkgsrc-2012Q1-base, pkgsrc-2012Q1, pkgsrc-2011Q4-base, pkgsrc-2011Q4, pkgsrc-2011Q3-base, pkgsrc-2011Q3, pkgsrc-2011Q2-base, pkgsrc-2011Q2, pkgsrc-2011Q1-base, pkgsrc-2011Q1, pkgsrc-2010Q4-base, pkgsrc-2010Q4
Changes since 1.1: +6 -6 lines
Diff to previous 1.1 (colored)

update to 0.13
too many changes to list here - see the ReleaseNotes

Revision 1.1.1.1 / (download) - annotate - [select for diffs] (vendor branch), Thu Jul 15 17:41:57 2010 UTC (8 years, 10 months ago) by drochner
Branch: TNF
CVS Tags: pkgsrc-base, pkgsrc-2010Q3-base, pkgsrc-2010Q3
Changes since 1.1: +0 -0 lines
Diff to previous 1.1 (colored)

add py-cython-0.12.1, a compiler to build Pythin extensions, from
Kamel Derouiche per pkgsrc-wip

Revision 1.1 / (download) - annotate - [select for diffs], Thu Jul 15 17:41:57 2010 UTC (8 years, 10 months ago) by drochner
Branch: MAIN

Initial revision

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