[Cython] Appetite for working with upstream to extend the buffer protocol?

d need to write custom serializers and parsers, whereas Cython already has memoryviews fully working. Guido van Rossum wanted some more discussion about this, so I'm raising this as an issue here in case any Cython developers are interested. Please chime in on the python disourse thread if so.

Re: [Cython] Size of output

Interesting it’s not documented well, it definitely should be. It corresponds to this compiler option: https://cython.readthedocs.io/en/latest/src/userguide/source_files_and_compilation.html#Cython.Compiler.Options.annotate When you turn that option on or pass -a or —annotate to the compiler, c

[Cython] OpenMP 4.5 array reductions

to do parallel reductions on large arrays. I would also not be surprised if there is code in the wild that is racy and silently producing incorrect results. -Nathan ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel

Re: [Cython] #cython on freenode

channel registered with the project and to set up admins. Nathan On Mon, Aug 13, 2018 at 12:06 PM Abdur-Rahmaan Janhangeer < arj.pyt...@gmail.com> wrote: > the admin of #python-fr sent me this resource, will help : > > https://nedbatchelder.com/blog/201808/fighting_spam_on_freenode.h

[Cython] #cython on freenode

rs in #scipy and #numpy. Thanks for your help, -Nathan ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel

Re: [Cython] Should we start requiring "language_level=2" for .pyx files?

It would help if cython could generate compiler warnings for a release or two about py2-specific constructs before officially switching the default language level. On Mon, May 28, 2018 at 2:14 PM Stefan Behnel wrote: > Hi, > > Python 3 is clearly taking over the world these days, so it starts fe

Re: [Cython] Next Cython Release

Hearty +1 to getting a cython release out. I'd like to get this fix which will substantially speed up some code I've written on multicore systems: https://github.com/cython/cython/commit/8dbc7c39d1f1a3b675f69dceaac281 7b7675ca09 -Nathan On Mon, Jun 12, 2017 at 1:00 PM, Stefan Beh

Re: [Cython] Next Cython Release

Cython uses github for bug tracking these days: https://github.com/cython/cython/issues On Sun, Jun 11, 2017 at 10:54 AM Julian Rüth wrote: > Hello Cython developers, > > some people over at conda-forge would like to use features that are > already in master but have not been released yet > (ht

Re: [Cython] Static checker for cython extension dependencies?

On Fri, Jun 10, 2016 at 5:04 PM, Robert Bradshaw wrote: > On Fri, Jun 10, 2016 at 1:18 PM, Nathan Goldbaum > wrote: > > Hmm, so I've looked into this a bit further, and it looks like the > metadata > > isn't going to be useful for us. Many of our extensions can&#

Re: [Cython] Static checker for cython extension dependencies?

to something like > https://gist.github.com/robertwb/25ab9838cc2b9b21eed646834cf4a108 if > cython is not available. > > > On Fri, Jun 10, 2016 at 10:55 AM, Nathan Goldbaum > wrote: > > The reason we haven't done that is we would like our setup.py script to > be > > run

Re: [Cython] Static checker for cython extension dependencies?

ocessing > > On Fri, Jun 10, 2016 at 9:18 AM, Nathan Goldbaum > wrote: > > Hi all, > > > > I'm working on a pretty large python/cython codebase (yt) that has many > > interdependent C extensions written in cython. > > > > I've found it

[Cython] Static checker for cython extension dependencies?

ion, rather than just for subsequent incremental recompilations during development. Thanks for your help! -Nathan ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel

[Cython] 'Class' redeclared error if C++ class & file name match those of the wrapper class

Hi all, I'm forwarding this at the request of David Nemesky ("savior" on Freenode), who I've been chatting with on the cython IRC channel. He was having trouble signing up to the cython-devel mailing list, so I've gone ahead and sent his bug report in for him. His report follows below. Apparently

[Cython] cygdb: no debug files were found

the cython docs. Does anyone have any idea what went wrong here? For now I'm going to fall back to regular gdb, and debug the autogenerated cython sources. Thanks for your help, Nathan Goldbaum ___ cython-devel mailing list cython-devel@py

[Cython] Cython magic annotate option is broken under IPython 3.0

Hi all, To reproduce this issue, be on cython 0.22 and IPython 3.0 and run the following notebook: http://nbviewer.ipython.org/gist/ngoldbaum/855a629d997aa7959254 Googling the error returns some several year old discussions in IPython related to the autoreload magic and I'm not sure if that is a

Re: [Cython] Cython 0.16 issue Windows with Mingw32

around a known bug in distutils ( http://bugs.python.org/issue12641 ), the issue with PyCFunction_Call went away and the entire 76k line Cython generated C file compiled without a hitch. So probably this is only a problem on very old compilers, and so perhaps not worth investigating

[Cython] Cython 0.16 issue Windows with Mingw32

The problem seems to be in the code that's pulled in from CythonFunction.c. I apologize for not providing a more minimal example (the above code is available at "hg clone static-http://math.uic.edu/t3m/hg/SnapPy";) but the small m

Re: [Cython] Cython 0.16: "eval" problem

l(x) ## prob.pyx version 2 def f(x): cdef int* p return eval(x, {}) Best, Nathan ___ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel

[Cython] Cython 0.16: "eval" problem

7; to Python object If I comment out the (unused) line "cdef int* p" then it works with Cython 0.16. The issue is the pointer declaration; something like: def f(x): cdef int p p = eval(x) return p*p works fine with Cython 0.16. Thanks, Nathan __

[Cython] Cython 0.16: problems with "easy_install"

;t figure out the architecture type of: /var/tmp//ccvgdiS6.out error: Setup script exited with error: command 'gcc' failed with exit status 1 If I download the .zip file and run setup.py by hand it installs fine. Best, Nathan Error when easy_installing with Python