Robert, I'll see what I can do. As you suspected, the files are not
disclosable :-(.
Victor
On Aug 3, 3:03 am, Robert Bradshaw <rober...@math.washington.edu>
wrote:
> This is exactly the kind if thing we try to avoid. I'd like to see the
> files (if they're disclosable of course), or perhaps you could come up
> with a whittled-down example.
>
>
>
>
>
>
>
> On Tue, Aug 2, 2011 at 7:22 PM, VictorMiller <victorsmil...@gmail.com> wrote:
> > Robert, The .py and .pyx files are identical. I copied one to the
> > other, and just in case I checked with diff. It's very puzzling.
>
> > Victor
>
> > On Aug 2, 8:19 pm, Robert Bradshaw <rober...@math.washington.edu>
> > wrote:
> >> On Tue, Aug 2, 2011 at 11:29 AM, William Stein <wst...@gmail.com> wrote:
> >> > On Tue, Aug 2, 2011 at 11:09 AM, VictorMiller <victorsmil...@gmail.com>
> >> > wrote:
> >> >> I've written a bunch of functions (some organized in classes) to do
> >> >> some large computations in a particular finite field (always GF(2^n)
> >> >> for some odd n). This seems to work fine. I'd like the computation
> >> >> to be as fast as possible, so the first thing I did was to copy
> >> >> the .py file to a .pyx file. The good news is that the compiled
> >> >> cython is at least 30% faster (sometimes more) than the
> >> >> interpreted .py version. The bad news is that it gives different
> >> >> results! In trying to track down where things go awry, I made the
> >> >> following declaration in each
>
> >> >> from sage.misc.decorators import sage_wrap
> >> >> from string import join
> >> >> def logged(func):
> >> >> @sage_wrap(func)
> >> >> def with_logging(*args, **kwds):
> >> >> print func.__name__ + '(' + join([str(_) for _ in args],',')
> >> >> + ')'
> >> >> return func(*args,**kwds)
> >> >> return with_logging
>
> >> >> I then put
> >> >> @logged
>
> >> >> in from of the defs of a bunch of functions.
>
> >> >> This works as expected with .py version, but when I try to compile
> >> >> the .pyx version I get the message:
>
> >> >> .... in update_wrapper
> >> >> setattr(wrapper, attr, getattr(wrapped, attr))
> >> >> AttributeError: attribute '__doc__' of 'builtin_function_or_method'
> >> >> objects not writable
>
> >> >> I think that I understand what's going on here, but are there any
>
> >> > You often can't use decorators with Cython code,
>
> >> yet...
>
> >> > since it is compiled (not dynamic).
>
> >> >> suggestions as to how to get to the bottom of the differences between
> >> >> the cython compiled version and the interpreted version?
>
> >> > Put in print statements?
>
> >> You could also write your own with_logging that doesn't try to access
> >> __name__ or __doc__ and decorate with that.
>
> >> I'm very curious what goes awry. Did you make any changes other than
> >> changing the file from .py to .pyx and compiling it?
>
> >> - Robert
>
> > --
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