Am 2018-08-06 11:35, schrieb Geert Janssens:
Op maandag 6 augustus 2018 05:32:27 CEST schreef John Ralls:
> On Aug 5, 2018, at 5:17 PM, c.holterm...@gmx.de wrote:
>
> Hello,
>
> after some time I get back to the gnucash python bindings.
>
> I worked on a str method for GncNumeric. It's in the example_script
> dir
> (https://github.com/Gnucash/gnucash/blob/maint/bindings/python/example_sc
> ripts/str_methods.py) I changed it to python3.
I read at the beginning of this file you chose to implement it as an
example
script which - if found useful - could be added to gnucash_core.
You have my blessing to include it in gnucash_core :)
> Well I found it interesting to think these things through. Maybe someone
> can tell me about the mysterious "later on" in the cited comment. At this
> point I find it useful to have a way from the instance to the wrapping
> object through some kind of link as I suggested in the patch to
> function_class.
Christoph,
The person who wrote the first two lines of that, Mark Jenkins, was
the
original source of the Python bindings. He was never a regular dev, he
just
got 16 patches committed between 2007 and 2012, 10 of which touched
the
python bindings. Your history with them is almost as long as his--in
fact
you have *12* commits--and pretty much no one else has done anything
serious with them.
Hopefully Mark is still around on the list to clarify.
In other words, if anyone knows, it’s you!
True :)
Just to add some more confusion, there’s now a C++ class GncNumeric
that
handles the actual implementation of many of the gnc_numeric.*
functions. I
believe that SWIG can’t see it, only the C wrapper functions are
exposed to
SWIG.
It would be a very useful experiment to wrap the C++ GncNumeric class
directly
rather than it's c wrapper gnc_numeric_xxx. Python doesn't need the c
compatibility layer it represents.
Geert
Geert,
unfortunately your mail went to my spam folder for whatever reason.
Trying to
do C++ bindings for python sounds very interesting. I'd like to try that
when
I find the time for a simple example type. I don't know if GncNumeric
would
be a good candidate. I'll have a look at it. Thanks for the blessing :-)
have a nice day !
Christoph
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