[SciPy-User] leastsq and cython
Sat Sep 25 16:45:08 CDT 2010
On 9/25/10 4:27 PM, Charles R Harris wrote:
> On Sat, Sep 25, 2010 at 3:03 PM, David Baddeley
> <email@example.com <mailto:firstname.lastname@example.org>> wrote:
> I've, run into a similar problem, it's due to the fact that
> native methods (ie
> ones loaded from c libraries) are not quite the same as pure
> python function
> objects & don't possess all the nice attributes. It's been a
> while, but I seem
> to remember that this error crops up when leastsq is trying to
> print some form
> of status message with the function name in it. I've circumvented
> the problem by
> making a thin python wrapper function which just calls my c
> method. This works,
> but is not ideal, as you introduce additional function call
> overhead. If anyone
> out there knows of a better solution I'd also be interested.
> Maybe it shouldn't try to print the function name? The context of the
> message might be enough.
The function 'check_func' in minpack.py uses the attribute 'func_name'
in an error message. I'm tweaking 'check_func' now so that it first
checks for the 'func_name' attribute before trying to use it.
Any suggestions for incorporating a cython or ctypes function into a
test, so I can include tests of the change?
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