[Cython] Cython 0.25 released

[Robert Bradshaw]

I'm having trouble reproducing this on any of my setups though. Let's
follow up on https://github.com/cython/cython/issues/1499

On Wed, Oct 26, 2016 at 2:11 AM, Antoine Martin <antoine at nagafix.co.uk>
wrote:

> On 26/10/16 03:34, Robert Bradshaw wrote:
> > I'm happy to announce the release of Cython 0.25 which has numerous
> > new features and bug fixes. It is available at
> > https://pypi.python.org/pypi/Cython
> >
> > We have also moved bug tracking from trac.cython.org to github issues.
> > However, user support still remains at cython-users@, please refrain
> > from filing issues until you have confirmed an actual bug.
>
> 0.25 does not build on any CentOS 6.x:
> wget
> "https://pypi.python.org/packages/f8/2e/5898046f8089205981447c23ebb8fe
> 02cd9d66939cd74338aa4872853d8e/Cython-0.25.tar.gz#md5=
> 1b61433b8410ac382ac9b248b42466fd"
> tar -zxf Cython-0.25.tar.gz
> cd Cython-0.25
> python ./setup.py build
> (..)
> building 'Cython.Runtime.refnanny' extension
> creating build/temp.linux-x86_64-2.6/home/centos/Cython-0.25/
> Cython/Runtime
> gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall
> -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
> --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC
> -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic
> -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.6 -c
> /home/centos/Cython-0.25/Cython/Runtime/refnanny.c -o
> build/temp.linux-x86_64-2.6/home/centos/Cython-0.25/
> Cython/Runtime/refnanny.o
> gcc: /home/centos/Cython-0.25/Cython/Runtime/refnanny.c: No such file or
> directory
> gcc: no input files
> error: command 'gcc' failed with exit status 1
>
> If I just run:
> cythonize /home/centos/Cython-0.25/Cython/Runtime/refnanny.pyx
> Then the build succeeds.
>
> Cheers
> Antoine
>
>
> >
> > - Robert
> >
> >
> > Features added
> > --------------
> >
> > * def/cpdef methods of cdef classes benefit from Cython's internal
> function
> >   implementation, which enables introspection and line profiling for
> them.
> >   Implementation sponsored by Turbostream (www.turbostream-cfd.com).
> >
> > * The distutils extension ``Cython.Distutils.build_ext`` has now been
> updated
> >   to use cythonize which properly handles dependencies.  The old
> extension can
> >   still be found in ``Cython.Distutils.old_build_ext`` and is now
> deprecated.
> >
> > * Calls to Python functions are faster, following the recent "FastCall"
> >   optimisations that Victor Stinner implemented for CPython 3.6.
> >   See https://bugs.python.org/issue27128 and related issues.
> >
> > * The new METH_FASTCALL calling convention for PyCFunctions is supported
> >   in CPython 3.6.  See https://bugs.python.org/issue27810
> >
> > * C++ classes can now have typedef members. STL containers updated with
> >   value_type.
> >
> > * Support for bazel using a the pyx_library rule in //Tools:rules.bzl.
> >
> > * Initial support for using Cython modules in Pyston.  Patch by Daetalus.
> >
> > * Dynamic Python attributes are allowed on cdef classes if an attribute
> >   ``cdef dict __dict__`` is declared in the class.  Patch by empyrical.
> >
> > * Cython implemented C++ classes can make direct calls to base class
> methods.
> >   Patch by empyrical.
> >
> > * New directive ``cython.no_gc`` to fully disable GC for a cdef class.
> >   Patch by Claudio Freire.
> >
> > * Buffer variables are no longer excluded from ``locals()``.
> >   Patch by da-woods.
> >
> > * Building f-strings is faster, especially when formatting C integers.
> >
> > * for-loop iteration over "std::string".
> >
> > * ``libc/math.pxd`` provides ``e`` and ``pi`` as alias constants to
> simplify
> >   usage as a drop-in replacement for Python's math module.
> >
> > * Speed up cython.inline().
> >
> > * Binary lshift operations with small constant Python integers are
> faster.
> >
> > * Some integer operations on Python long objects are faster in Python
> 2.7.
> >
> > * Support for the C++ ``typeid`` operator.
> >
> > Significant Bugs fixed
> > ----------------------
> >
> > * Division of complex numbers avoids overflow by using Smith's method.
> >
> > * Some function signatures in ``libc.math`` and ``numpy.pxd`` were
> incorrect.
> >   Patch by Michael Seifert.
> >
> > Other changes
> > -------------
> >
> > * The "%%cython" IPython/jupyter magic now defaults to the language
> level of
> >   the current jupyter kernel.  The language level can be set explicitly
> with
> >   "%%cython -2" or "%%cython -3".
> > _______________________________________________
> > cython-devel mailing list
> > cython-devel at python.org
> > https://mail.python.org/mailman/listinfo/cython-devel
> >
>
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